USPC Patent Classifications

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Class 474 endless belt power transmission systems or components
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474/1474 endless belt power transmission systems or components/(1) control for forward and reverse
474/2474 endless belt power transmission systems or components/(1) control for forward and reverse (2) cyclical or sequential (e.g., machine controlled, etc.)
474/3474 endless belt power transmission systems or components/(1) control for forward and reverse (2) cyclical or sequential (e.g., machine controlled, etc.) (3) including device for shifting belt laterally of its direction of run
474/4474 endless belt power transmission systems or components/(1) control for forward and reverse (4) including separate belts for forward and reverse
474/5474 endless belt power transmission systems or components/(1) control for forward and reverse (4) including separate belts for forward and reverse (5) belt selection by shifting or tightening belt
474/6474 endless belt power transmission systems or components/(1) control for forward and reverse (4) including separate belts for forward and reverse (5) belt selection by shifting or tightening belt (6) including device for shifting belt laterally of its direction of run
474/7474 endless belt power transmission systems or components/(1) control for forward and reverse (7) including coaxial pulleys rotated in opposite directions by single endless belt simultaneously engaging both pulleys
474/8474 endless belt power transmission systems or components/(8) pulley with belt-receiving groove formed by drive faces on relatively axially movable coaxial confronting members (e.g., expansible cone pulley, etc.)
474/9474 endless belt power transmission systems or components/(8) pulley with belt-receiving groove formed by drive faces on relatively axially movable coaxial confronting members (e.g., expansible cone pulley, etc.) (9) members are gripping jaws actuated during each rotation of pulley
474/10474 endless belt power transmission systems or components/(8) pulley with belt-receiving groove formed by drive faces on relatively axially movable coaxial confronting members (e.g., expansible cone pulley, etc.) (9) members are gripping jaws actuated during each rotation of pulley (10) via relatively rotating cam and follower
474/11474 endless belt power transmission systems or components/(8) pulley with belt-receiving groove formed by drive faces on relatively axially movable coaxial confronting members (e.g., expansible cone pulley, etc.) (11) speed responsive
474/12474 endless belt power transmission systems or components/(8) pulley with belt-receiving groove formed by drive faces on relatively axially movable coaxial confronting members (e.g., expansible cone pulley, etc.) (11) speed responsive (12) and load responsive
474/13474 endless belt power transmission systems or components/(8) pulley with belt-receiving groove formed by drive faces on relatively axially movable coaxial confronting members (e.g., expansible cone pulley, etc.) (11) speed responsive (13) to centrifugal force
474/14474 endless belt power transmission systems or components/(8) pulley with belt-receiving groove formed by drive faces on relatively axially movable coaxial confronting members (e.g., expansible cone pulley, etc.) (11) speed responsive (13) to centrifugal force (14) via pivoted weight
474/15474 endless belt power transmission systems or components/(8) pulley with belt-receiving groove formed by drive faces on relatively axially movable coaxial confronting members (e.g., expansible cone pulley, etc.) (11) speed responsive (13) to centrifugal force (15) via ball
474/16474 endless belt power transmission systems or components/(8) pulley with belt-receiving groove formed by drive faces on relatively axially movable coaxial confronting members (e.g., expansible cone pulley, etc.) (11) speed responsive (13) to centrifugal force (16) via liquid
474/17474 endless belt power transmission systems or components/(8) pulley with belt-receiving groove formed by drive faces on relatively axially movable coaxial confronting members (e.g., expansible cone pulley, etc.) (17) load responsive
474/18474 endless belt power transmission systems or components/(8) pulley with belt-receiving groove formed by drive faces on relatively axially movable coaxial confronting members (e.g., expansible cone pulley, etc.) (17) load responsive (18) with actuator driven by electrical or fluid motor
474/19474 endless belt power transmission systems or components/(8) pulley with belt-receiving groove formed by drive faces on relatively axially movable coaxial confronting members (e.g., expansible cone pulley, etc.) (17) load responsive (19) via relatively rotating cam and follower
474/20474 endless belt power transmission systems or components/(8) pulley with belt-receiving groove formed by drive faces on relatively axially movable coaxial confronting members (e.g., expansible cone pulley, etc.) (17) load responsive (19) via relatively rotating cam and follower (20) including interengaged threads
474/21474 endless belt power transmission systems or components/(8) pulley with belt-receiving groove formed by drive faces on relatively axially movable coaxial confronting members (e.g., expansible cone pulley, etc.) (17) load responsive (19) via relatively rotating cam and follower (21) including plural separate cam and follower pairs for adjusting plural members
474/22474 endless belt power transmission systems or components/(8) pulley with belt-receiving groove formed by drive faces on relatively axially movable coaxial confronting members (e.g., expansible cone pulley, etc.) (22) temperature responsive
474/23474 endless belt power transmission systems or components/(8) pulley with belt-receiving groove formed by drive faces on relatively axially movable coaxial confronting members (e.g., expansible cone pulley, etc.) (23) adjusted by power from pulley drive train
474/24474 endless belt power transmission systems or components/(8) pulley with belt-receiving groove formed by drive faces on relatively axially movable coaxial confronting members (e.g., expansible cone pulley, etc.) (24) and member has plural, relatively axially movable drive faces
474/25474 endless belt power transmission systems or components/(8) pulley with belt-receiving groove formed by drive faces on relatively axially movable coaxial confronting members (e.g., expansible cone pulley, etc.) (25) and pulley shiftable laterally of its axis of rotation
474/26474 endless belt power transmission systems or components/(8) pulley with belt-receiving groove formed by drive faces on relatively axially movable coaxial confronting members (e.g., expansible cone pulley, etc.) (25) and pulley shiftable laterally of its axis of rotation (26) mounted on laterally shiftable motor
474/27474 endless belt power transmission systems or components/(8) pulley with belt-receiving groove formed by drive faces on relatively axially movable coaxial confronting members (e.g., expansible cone pulley, etc.) (25) and pulley shiftable laterally of its axis of rotation (27) mounted on laterally shiftable countershaft
474/28474 endless belt power transmission systems or components/(8) pulley with belt-receiving groove formed by drive faces on relatively axially movable coaxial confronting members (e.g., expansible cone pulley, etc.) (28) fluid pressure actuator for adjustment of member
474/29474 endless belt power transmission systems or components/(8) pulley with belt-receiving groove formed by drive faces on relatively axially movable coaxial confronting members (e.g., expansible cone pulley, etc.) (29) including actuator interconnecting plural pulleys on spaced shafts for simultaneous adjustment
474/30474 endless belt power transmission systems or components/(8) pulley with belt-receiving groove formed by drive faces on relatively axially movable coaxial confronting members (e.g., expansible cone pulley, etc.) (29) including actuator interconnecting plural pulleys on spaced shafts for simultaneous adjustment (30) for axial adjustment of each member on each pulley
474/31474 endless belt power transmission systems or components/(8) pulley with belt-receiving groove formed by drive faces on relatively axially movable coaxial confronting members (e.g., expansible cone pulley, etc.) (29) including actuator interconnecting plural pulleys on spaced shafts for simultaneous adjustment (30) for axial adjustment of each member on each pulley (31) by dual lever mechanism
474/32474 endless belt power transmission systems or components/(8) pulley with belt-receiving groove formed by drive faces on relatively axially movable coaxial confronting members (e.g., expansible cone pulley, etc.) (32) plural members forming plural belt-receiving grooves on common axis
474/33474 endless belt power transmission systems or components/(8) pulley with belt-receiving groove formed by drive faces on relatively axially movable coaxial confronting members (e.g., expansible cone pulley, etc.) (32) plural members forming plural belt-receiving grooves on common axis (33) with member common to plural grooves
474/34474 endless belt power transmission systems or components/(8) pulley with belt-receiving groove formed by drive faces on relatively axially movable coaxial confronting members (e.g., expansible cone pulley, etc.) (32) plural members forming plural belt-receiving grooves on common axis (33) with member common to plural grooves (34) plural members common to plural grooves
474/35474 endless belt power transmission systems or components/(8) pulley with belt-receiving groove formed by drive faces on relatively axially movable coaxial confronting members (e.g., expansible cone pulley, etc.) (32) plural members forming plural belt-receiving grooves on common axis (35) axially spaced members simultaneously adjustable
474/36474 endless belt power transmission systems or components/(8) pulley with belt-receiving groove formed by drive faces on relatively axially movable coaxial confronting members (e.g., expansible cone pulley, etc.) (32) plural members forming plural belt-receiving grooves on common axis (35) axially spaced members simultaneously adjustable (36) on bolt radially spaced from pulley axis
474/37474 endless belt power transmission systems or components/(8) pulley with belt-receiving groove formed by drive faces on relatively axially movable coaxial confronting members (e.g., expansible cone pulley, etc.) (37) by manual actuator for one or both confronting members
474/38474 endless belt power transmission systems or components/(8) pulley with belt-receiving groove formed by drive faces on relatively axially movable coaxial confronting members (e.g., expansible cone pulley, etc.) (37) by manual actuator for one or both confronting members (38) with neutral condition of drive
474/39474 endless belt power transmission systems or components/(8) pulley with belt-receiving groove formed by drive faces on relatively axially movable coaxial confronting members (e.g., expansible cone pulley, etc.) (37) by manual actuator for one or both confronting members (39) screw actuated
474/40474 endless belt power transmission systems or components/(8) pulley with belt-receiving groove formed by drive faces on relatively axially movable coaxial confronting members (e.g., expansible cone pulley, etc.) (37) by manual actuator for one or both confronting members (39) screw actuated (40) with additional linkage in actuator drive train
474/41474 endless belt power transmission systems or components/(8) pulley with belt-receiving groove formed by drive faces on relatively axially movable coaxial confronting members (e.g., expansible cone pulley, etc.) (37) by manual actuator for one or both confronting members (39) screw actuated (41) by opposite-handed screw threads engaging adjacent members
474/42474 endless belt power transmission systems or components/(8) pulley with belt-receiving groove formed by drive faces on relatively axially movable coaxial confronting members (e.g., expansible cone pulley, etc.) (37) by manual actuator for one or both confronting members (39) screw actuated (42) with means to positively lock members in adjusted position
474/43474 endless belt power transmission systems or components/(8) pulley with belt-receiving groove formed by drive faces on relatively axially movable coaxial confronting members (e.g., expansible cone pulley, etc.) (43) including lubrication or particular guide or bearing for movable member
474/44474 endless belt power transmission systems or components/(8) pulley with belt-receiving groove formed by drive faces on relatively axially movable coaxial confronting members (e.g., expansible cone pulley, etc.) (43) including lubrication or particular guide or bearing for movable member (44) self-lubricated bearing
474/45474 endless belt power transmission systems or components/(8) pulley with belt-receiving groove formed by drive faces on relatively axially movable coaxial confronting members (e.g., expansible cone pulley, etc.) (43) including lubrication or particular guide or bearing for movable member (45) with lubrication of support for movable member
474/46474 endless belt power transmission systems or components/(8) pulley with belt-receiving groove formed by drive faces on relatively axially movable coaxial confronting members (e.g., expansible cone pulley, etc.) (46) with spring device
474/47474 endless belt power transmission systems or components/(47) pulley with expansible rim means or pulleys with alternately useable nestable rims
474/48474 endless belt power transmission systems or components/(47) pulley with expansible rim means or pulleys with alternately useable nestable rims (48) nestable rims of diverse kind (e.g., one grooved and the other cylindrical, etc.)
474/49474 endless belt power transmission systems or components/(47) pulley with expansible rim means or pulleys with alternately useable nestable rims (49) structure for variably adjusting radius of rim section
474/50474 endless belt power transmission systems or components/(47) pulley with expansible rim means or pulleys with alternately useable nestable rims (49) structure for variably adjusting radius of rim section (50) by actuator responsive to speed or load
474/51474 endless belt power transmission systems or components/(47) pulley with expansible rim means or pulleys with alternately useable nestable rims (49) structure for variably adjusting radius of rim section (51) by fluid pressure actuator or inflatable rim
474/52474 endless belt power transmission systems or components/(47) pulley with expansible rim means or pulleys with alternately useable nestable rims (49) structure for variably adjusting radius of rim section (52) including means interconnecting plural pulleys for simultaneous adjustment
474/53474 endless belt power transmission systems or components/(47) pulley with expansible rim means or pulleys with alternately useable nestable rims (49) structure for variably adjusting radius of rim section (52) including means interconnecting plural pulleys for simultaneous adjustment (53) pulleys on spaced axes
474/54474 endless belt power transmission systems or components/(47) pulley with expansible rim means or pulleys with alternately useable nestable rims (49) structure for variably adjusting radius of rim section (54) by actuator having collar concentric with, and movable axially on, pulley axis
474/55474 endless belt power transmission systems or components/(47) pulley with expansible rim means or pulleys with alternately useable nestable rims (49) structure for variably adjusting radius of rim section (54) by actuator having collar concentric with, and movable axially on, pulley axis (55) collar interconnected with rim sections via pivoted link
474/56474 endless belt power transmission systems or components/(47) pulley with expansible rim means or pulleys with alternately useable nestable rims (49) structure for variably adjusting radius of rim section (56) by actuator having collar concentric with, and rotatable in plane perpendicular to pulley axis
474/57474 endless belt power transmission systems or components/(47) pulley with expansible rim means or pulleys with alternately useable nestable rims (49) structure for variably adjusting radius of rim section (56) by actuator having collar concentric with, and rotatable in plane perpendicular to pulley axis (57) collar interconnected with rim sections via pivoted link
474/58474 endless belt power transmission systems or components/(58) power output pulley selectively shiftable to different power output locations relative to input pulley
474/59474 endless belt power transmission systems or components/(58) power output pulley selectively shiftable to different power output locations relative to input pulley (59) pivotable about plural axes
474/60474 endless belt power transmission systems or components/(58) power output pulley selectively shiftable to different power output locations relative to input pulley (59) pivotable about plural axes (60) nonparallel axes
474/61474 endless belt power transmission systems or components/(61) power input and output pulleys on nonparallel axes
474/62474 endless belt power transmission systems or components/(61) power input and output pulleys on nonparallel axes (62) with common belt engaging both pulleys
474/63474 endless belt power transmission systems or components/(61) power input and output pulleys on nonparallel axes (62) with common belt engaging both pulleys (63) and shiftable guide roll engaging belt run
474/64474 endless belt power transmission systems or components/(64) plural turns of same belt about pulley axis
474/65474 endless belt power transmission systems or components/(64) plural turns of same belt about pulley axis (65) with flexible belt-tracking guide helically coiled about pulley
474/66474 endless belt power transmission systems or components/(64) plural turns of same belt about pulley axis (66) plural turns of same belt about axis of each of laterally spaced pulleys
474/67474 endless belt power transmission systems or components/(64) plural turns of same belt about pulley axis (66) plural turns of same belt about axis of each of laterally spaced pulleys (67) with guide roll
474/68474 endless belt power transmission systems or components/(64) plural turns of same belt about pulley axis (66) plural turns of same belt about axis of each of laterally spaced pulleys (67) with guide roll (68) plural guide rolls
474/69474 endless belt power transmission systems or components/(69) control for variable input to output speed-ratio
474/70474 endless belt power transmission systems or components/(69) control for variable input to output speed-ratio (70) condition responsive (e.g., responsive to speed, load, etc.)
474/71474 endless belt power transmission systems or components/(69) control for variable input to output speed-ratio (71) cyclical or sequential (e.g., machine controlled, etc.)
474/72474 endless belt power transmission systems or components/(69) control for variable input to output speed-ratio (72) including intermeshing gears in one drive train
474/73474 endless belt power transmission systems or components/(69) control for variable input to output speed-ratio (73) including separate belt on each of coaxial pulleys selectively engaged in drive train
474/74474 endless belt power transmission systems or components/(69) control for variable input to output speed-ratio (73) including separate belt on each of coaxial pulleys selectively engaged in drive train (74) with overrunning clutch
474/75474 endless belt power transmission systems or components/(69) control for variable input to output speed-ratio (73) including separate belt on each of coaxial pulleys selectively engaged in drive train (75) selection by tightening belt on selected pulley
474/76474 endless belt power transmission systems or components/(69) control for variable input to output speed-ratio (73) including separate belt on each of coaxial pulleys selectively engaged in drive train (76) selection by axially movable pin engaged in opening through selected pulley
474/77474 endless belt power transmission systems or components/(69) control for variable input to output speed-ratio (77) including coaxial pulleys shiftable axially to align selected pulley with drive belt
474/78474 endless belt power transmission systems or components/(69) control for variable input to output speed-ratio (78) including belt shiftable axially from one to another surface of stepped pulley or coaxial pulleys of different diameter
474/79474 endless belt power transmission systems or components/(69) control for variable input to output speed-ratio (78) including belt shiftable axially from one to another surface of stepped pulley or coaxial pulleys of different diameter (79) and pulley pivotally mounted to facilitate belt shift
474/80474 endless belt power transmission systems or components/(69) control for variable input to output speed-ratio (78) including belt shiftable axially from one to another surface of stepped pulley or coaxial pulleys of different diameter (80) and including belt-shifter mechanism
474/81474 endless belt power transmission systems or components/(69) control for variable input to output speed-ratio (78) including belt shiftable axially from one to another surface of stepped pulley or coaxial pulleys of different diameter (80) and including belt-shifter mechanism (81) for shifting belt from both power input and power output pulleys
474/82474 endless belt power transmission systems or components/(69) control for variable input to output speed-ratio (78) including belt shiftable axially from one to another surface of stepped pulley or coaxial pulleys of different diameter (80) and including belt-shifter mechanism (82) shifter mechanism including parallelogram linkage
474/83474 endless belt power transmission systems or components/(69) control for variable input to output speed-ratio (83) including mechanism for shifting belt axially on spaced pulleys with tapering drive face
474/84474 endless belt power transmission systems or components/(84) plural belts or plural output loads
474/85474 endless belt power transmission systems or components/(84) plural belts or plural output loads (85) plural belts having interengaged drive surfaces
474/86474 endless belt power transmission systems or components/(84) plural belts or plural output loads (86) plural output loads
474/87474 endless belt power transmission systems or components/(84) plural belts or plural output loads (86) plural output loads (87) with common belt concurrently engaging input and plural output pulleys
474/88474 endless belt power transmission systems or components/(84) plural belts or plural output loads (88) plural belts in series via countershaft
474/89474 endless belt power transmission systems or components/(84) plural belts or plural output loads (88) plural belts in series via countershaft (89) countershaft laterally shiftable
474/90474 endless belt power transmission systems or components/(90) static electricity eliminator
474/91474 endless belt power transmission systems or components/(91) structure facilitating lubrication of belt, pulley, or guide roll
474/92474 endless belt power transmission systems or components/(92) cleaning device for belt, pulley, or guide roll
474/93474 endless belt power transmission systems or components/(93) fluid-impelling means (e.g., for cooling, etc.)
474/94474 endless belt power transmission systems or components/(94) resilient connection between pulley or guide-roll rim and mount
474/95474 endless belt power transmission systems or components/(95) hub formed in sections and separable by moving sections radially apart (e.g., split pulley to facilitate installation, etc.)
474/96474 endless belt power transmission systems or components/(95) hub formed in sections and separable by moving sections radially apart (e.g., split pulley to facilitate installation, etc.) (96) and severance lines for separable rim sections diametrically opposite each other
474/97474 endless belt power transmission systems or components/(95) hub formed in sections and separable by moving sections radially apart (e.g., split pulley to facilitate installation, etc.) (96) and severance lines for separable rim sections diametrically opposite each other (97) with spokes connecting hub section and rim section
474/98474 endless belt power transmission systems or components/(95) hub formed in sections and separable by moving sections radially apart (e.g., split pulley to facilitate installation, etc.) (96) and severance lines for separable rim sections diametrically opposite each other (97) with spokes connecting hub section and rim section (98) plural integral spokes
474/99474 endless belt power transmission systems or components/(95) hub formed in sections and separable by moving sections radially apart (e.g., split pulley to facilitate installation, etc.) (96) and severance lines for separable rim sections diametrically opposite each other (97) with spokes connecting hub section and rim section (98) plural integral spokes (99) with discrete means connecting outer ends of integral spokes to rim
474/100474 endless belt power transmission systems or components/(100) auxiliary endless band for guiding belt or holding belt engaged with pulley
474/101474 endless belt power transmission systems or components/(101) means for adjusting belt tension or for shifting belt, pulley or guide roll
474/102474 endless belt power transmission systems or components/(101) means for adjusting belt tension or for shifting belt, pulley or guide roll (102) with sensor for controlling operation of shifter to correct belt training deviation
474/103474 endless belt power transmission systems or components/(101) means for adjusting belt tension or for shifting belt, pulley or guide roll (102) with sensor for controlling operation of shifter to correct belt training deviation (103) shifter driven by electrical or fluid motor
474/104474 endless belt power transmission systems or components/(101) means for adjusting belt tension or for shifting belt, pulley or guide roll (102) with sensor for controlling operation of shifter to correct belt training deviation (103) shifter driven by electrical or fluid motor (104) fluid motor
474/105474 endless belt power transmission systems or components/(101) means for adjusting belt tension or for shifting belt, pulley or guide roll (102) with sensor for controlling operation of shifter to correct belt training deviation (105) sensor actuates pawl-and-rachet mechanism to operate shifter
474/106474 endless belt power transmission systems or components/(101) means for adjusting belt tension or for shifting belt, pulley or guide roll (102) with sensor for controlling operation of shifter to correct belt training deviation (106) sensor includes rotatable belt-engaging surface
474/107474 endless belt power transmission systems or components/(101) means for adjusting belt tension or for shifting belt, pulley or guide roll (102) with sensor for controlling operation of shifter to correct belt training deviation (106) sensor includes rotatable belt-engaging surface (107) rotatable on same axis as shiftable guide roll or pulley
474/108474 endless belt power transmission systems or components/(101) means for adjusting belt tension or for shifting belt, pulley or guide roll (102) with sensor for controlling operation of shifter to correct belt training deviation (106) sensor includes rotatable belt-engaging surface (107) rotatable on same axis as shiftable guide roll or pulley (108) to initiate relative axial movement of belt-engaging surfaces of guide roll or pulley
474/109474 endless belt power transmission systems or components/(101) means for adjusting belt tension or for shifting belt, pulley or guide roll (109) load responsive tension adjuster or shifter
474/110474 endless belt power transmission systems or components/(101) means for adjusting belt tension or for shifting belt, pulley or guide roll (110) tension adjuster or shifter driven by electrical or fluid motor
474/111474 endless belt power transmission systems or components/(101) means for adjusting belt tension or for shifting belt, pulley or guide roll (111) tension adjuster has surface in sliding contact with belt
474/112474 endless belt power transmission systems or components/(101) means for adjusting belt tension or for shifting belt, pulley or guide roll (112) pulley or guide roll has eccentric mount for shifting or tensioning movement
474/113474 endless belt power transmission systems or components/(101) means for adjusting belt tension or for shifting belt, pulley or guide roll (113) pulley shifter
474/114474 endless belt power transmission systems or components/(101) means for adjusting belt tension or for shifting belt, pulley or guide roll (113) pulley shifter (114) pulley on shaft of adjustably mounted drive motor
474/115474 endless belt power transmission systems or components/(101) means for adjusting belt tension or for shifting belt, pulley or guide roll (113) pulley shifter (114) pulley on shaft of adjustably mounted drive motor (115) spring biased in belt-tensioning direction
474/116474 endless belt power transmission systems or components/(101) means for adjusting belt tension or for shifting belt, pulley or guide roll (113) pulley shifter (116) pulley is vehicle drive pulley (e.g., bicycle sprocket, etc.)
474/117474 endless belt power transmission systems or components/(101) means for adjusting belt tension or for shifting belt, pulley or guide roll (113) pulley shifter (117) spring biased in belt-tensioning direction
474/118474 endless belt power transmission systems or components/(101) means for adjusting belt tension or for shifting belt, pulley or guide roll (113) pulley shifter (118) pulley shiftable into engagement with exterior of belt surface
474/119474 endless belt power transmission systems or components/(101) means for adjusting belt tension or for shifting belt, pulley or guide roll (119) belt shifter for shifting belt laterally or for selective engagement and supported disengagement of belt with pulley
474/120474 endless belt power transmission systems or components/(101) means for adjusting belt tension or for shifting belt, pulley or guide roll (119) belt shifter for shifting belt laterally or for selective engagement and supported disengagement of belt with pulley (120) pulley has slot in groove-forming flange facilitating belt installation or removal
474/121474 endless belt power transmission systems or components/(101) means for adjusting belt tension or for shifting belt, pulley or guide roll (119) belt shifter for shifting belt laterally or for selective engagement and supported disengagement of belt with pulley (121) for shifting exterior surface of belt into engagement with pulley
474/122474 endless belt power transmission systems or components/(101) means for adjusting belt tension or for shifting belt, pulley or guide roll (119) belt shifter for shifting belt laterally or for selective engagement and supported disengagement of belt with pulley (122) for shifting belt laterally
474/123474 endless belt power transmission systems or components/(101) means for adjusting belt tension or for shifting belt, pulley or guide roll (119) belt shifter for shifting belt laterally or for selective engagement and supported disengagement of belt with pulley (122) for shifting belt laterally (123) by adjusting axial inclination of belt guide roll
474/124474 endless belt power transmission systems or components/(101) means for adjusting belt tension or for shifting belt, pulley or guide roll (119) belt shifter for shifting belt laterally or for selective engagement and supported disengagement of belt with pulley (122) for shifting belt laterally (124) with idler support having circumferentially spaced rollers to receive shifted belt
474/125474 endless belt power transmission systems or components/(101) means for adjusting belt tension or for shifting belt, pulley or guide roll (119) belt shifter for shifting belt laterally or for selective engagement and supported disengagement of belt with pulley (122) for shifting belt laterally (125) including means for selectively clutching coaxial idler support to pulley
474/126474 endless belt power transmission systems or components/(101) means for adjusting belt tension or for shifting belt, pulley or guide roll (119) belt shifter for shifting belt laterally or for selective engagement and supported disengagement of belt with pulley (122) for shifting belt laterally (126) shifter actuated by screw or gear drive
474/127474 endless belt power transmission systems or components/(101) means for adjusting belt tension or for shifting belt, pulley or guide roll (119) belt shifter for shifting belt laterally or for selective engagement and supported disengagement of belt with pulley (122) for shifting belt laterally (127) shifter actuated by flexible cable
474/128474 endless belt power transmission systems or components/(101) means for adjusting belt tension or for shifting belt, pulley or guide roll (119) belt shifter for shifting belt laterally or for selective engagement and supported disengagement of belt with pulley (122) for shifting belt laterally (128) shifter actuated by handle pivoted about fixed axis
474/129474 endless belt power transmission systems or components/(101) means for adjusting belt tension or for shifting belt, pulley or guide roll (119) belt shifter for shifting belt laterally or for selective engagement and supported disengagement of belt with pulley (122) for shifting belt laterally (128) shifter actuated by handle pivoted about fixed axis (129) and connector link between handle and shifter pivotable about spaced fixed axis
474/130474 endless belt power transmission systems or components/(101) means for adjusting belt tension or for shifting belt, pulley or guide roll (119) belt shifter for shifting belt laterally or for selective engagement and supported disengagement of belt with pulley (130) portable hand tool for removing or installing belt
474/131474 endless belt power transmission systems or components/(101) means for adjusting belt tension or for shifting belt, pulley or guide roll (131) guide roll forms belt-thickness gap with pulley
474/132474 endless belt power transmission systems or components/(101) means for adjusting belt tension or for shifting belt, pulley or guide roll (132) gravity actuated guide roll for tensioning belt
474/133474 endless belt power transmission systems or components/(101) means for adjusting belt tension or for shifting belt, pulley or guide roll (133) guide roll mounted for movement of its axis along arcuate path to tension belt
474/134474 endless belt power transmission systems or components/(101) means for adjusting belt tension or for shifting belt, pulley or guide roll (133) guide roll mounted for movement of its axis along arcuate path to tension belt (134) plural guide rolls engaging single belt
474/135474 endless belt power transmission systems or components/(101) means for adjusting belt tension or for shifting belt, pulley or guide roll (133) guide roll mounted for movement of its axis along arcuate path to tension belt (135) guide roll spring biased in belt-tensioning direction
474/136474 endless belt power transmission systems or components/(101) means for adjusting belt tension or for shifting belt, pulley or guide roll (136) guide roll mounted for movement of its axis along rectilineal path to tension belt
474/137474 endless belt power transmission systems or components/(101) means for adjusting belt tension or for shifting belt, pulley or guide roll (136) guide roll mounted for movement of its axis along rectilineal path to tension belt (137) plural guide rolls engaging single belt
474/138474 endless belt power transmission systems or components/(101) means for adjusting belt tension or for shifting belt, pulley or guide roll (136) guide roll mounted for movement of its axis along rectilineal path to tension belt (138) guide roll spring biased in belt-tensioning direction
474/139474 endless belt power transmission systems or components/(139) pulley engages exterior surface of belt
474/140474 endless belt power transmission systems or components/(140) belt guide has surface in sliding contact with belt
474/141474 endless belt power transmission systems or components/(141) pulley having circumferentially spaced portions of drive face spaced unequal distances from pulley axis of rotation (e.g., elliptical pulley, etc.)
474/142474 endless belt power transmission systems or components/(142) magnetic attraction between belt and pulley
474/143474 endless belt power transmission systems or components/(143) fabric drive face on belt and pulley
474/144474 endless belt power transmission systems or components/(144) guard or housing for belt or pulley
474/145474 endless belt power transmission systems or components/(144) guard or housing for belt or pulley (145) connected to belt
474/146474 endless belt power transmission systems or components/(144) guard or housing for belt or pulley (146) extending along entire length of belt run
474/147474 endless belt power transmission systems or components/(144) guard or housing for belt or pulley (146) extending along entire length of belt run (147) individual tubular housings for opposite belt run
474/148474 endless belt power transmission systems or components/(148) system including spaced pulleys interconnected by a belt
474/149474 endless belt power transmission systems or components/(148) system including spaced pulleys interconnected by a belt (149) positive drive pulley and friction drive pulley connected by same belt
474/150474 endless belt power transmission systems or components/(148) system including spaced pulleys interconnected by a belt (150) with frame or mount for system
474/151474 endless belt power transmission systems or components/(151) auxiliary member removably attached to pulley or guide roll for preventing lateral displacement of belt
474/152474 endless belt power transmission systems or components/(152) positive drive pulley or guide roll
474/153474 endless belt power transmission systems or components/(152) positive drive pulley or guide roll (153) with particular belt
474/154474 endless belt power transmission systems or components/(152) positive drive pulley or guide roll (153) with particular belt (154) belt has spherical or hemispherical drive faces
474/155474 endless belt power transmission systems or components/(152) positive drive pulley or guide roll (153) with particular belt (155) belt formed of rigid links
474/156474 endless belt power transmission systems or components/(152) positive drive pulley or guide roll (153) with particular belt (155) belt formed of rigid links (156) with sequential links pivoted about discrete pivot pin
474/157474 endless belt power transmission systems or components/(152) positive drive pulley or guide roll (153) with particular belt (155) belt formed of rigid links (156) with sequential links pivoted about discrete pivot pin (157) and each link has integral surfaces forming inwardly opening groove
474/158474 endless belt power transmission systems or components/(152) positive drive pulley or guide roll (158) and additional coaxial surface for engaging same belt in shifted condition or for engaging auxiliary belt, brake, or clutch member
474/159474 endless belt power transmission systems or components/(152) positive drive pulley or guide roll (158) and additional coaxial surface for engaging same belt in shifted condition or for engaging auxiliary belt, brake, or clutch member (159) coaxial surface is belt-engaging surface on friction drive pulley
474/160474 endless belt power transmission systems or components/(152) positive drive pulley or guide roll (158) and additional coaxial surface for engaging same belt in shifted condition or for engaging auxiliary belt, brake, or clutch member (160) coaxial surface is belt-engaging surface on positive drive pulley of different circumference
474/161474 endless belt power transmission systems or components/(152) positive drive pulley or guide roll (161) having nonmetallic component
474/162474 endless belt power transmission systems or components/(152) positive drive pulley or guide roll (162) having belt-engaging surfaces on discrete circumferentially spaced, relatively movable or replaceable members
474/163474 endless belt power transmission systems or components/(152) positive drive pulley or guide roll (162) having belt-engaging surfaces on discrete circumferentially spaced, relatively movable or replaceable members (163) movable with respect to each other during operation
474/164474 endless belt power transmission systems or components/(152) positive drive pulley or guide roll (164) having axially spaced sets of belt-engaging surfaces
474/165474 endless belt power transmission systems or components/(152) positive drive pulley or guide roll (165) with stationary support for pulley or guide roll
474/166474 endless belt power transmission systems or components/(166) friction drive pulley or guide roll
474/167474 endless belt power transmission systems or components/(166) friction drive pulley or guide roll (167) with particular belt
474/168474 endless belt power transmission systems or components/(166) friction drive pulley or guide roll (168) including plural, coaxial, circumferential belt-receiving grooves
474/169474 endless belt power transmission systems or components/(166) friction drive pulley or guide roll (168) including plural, coaxial, circumferential belt-receiving grooves (169) plural grooves of different circumferences
474/170474 endless belt power transmission systems or components/(166) friction drive pulley or guide roll (168) including plural, coaxial, circumferential belt-receiving grooves (170) plural grooves formed in unitary member
474/171474 endless belt power transmission systems or components/(166) friction drive pulley or guide roll (171) and additional coaxial surface for engaging same belt in shifted condition or for engaging auxiliary belt, brake, or clutch member
474/172474 endless belt power transmission systems or components/(166) friction drive pulley or guide roll (172) guide roll on axis perpendicular to top surface of belt for engaging side of belt
474/173474 endless belt power transmission systems or components/(166) friction drive pulley or guide roll (172) guide roll on axis perpendicular to top surface of belt for engaging side of belt (173) and additional guide roll for engaging top or bottom surface of belt
474/174474 endless belt power transmission systems or components/(166) friction drive pulley or guide roll (174) pulley or guide roll including circumferential belt-receiving groove
474/175474 endless belt power transmission systems or components/(166) friction drive pulley or guide roll (174) pulley or guide roll including circumferential belt-receiving groove (175) groove formed by rugate or circumferentially spaced drive surfaces
474/176474 endless belt power transmission systems or components/(166) friction drive pulley or guide roll (174) pulley or guide roll including circumferential belt-receiving groove (176) groove formed by multiple, abutting, circumferentially connected members
474/177474 endless belt power transmission systems or components/(166) friction drive pulley or guide roll (174) pulley or guide roll including circumferential belt-receiving groove (177) and circumferentially continuous belt-engaging layer or insert of diverse material added on or between groove-forming flanges
474/178474 endless belt power transmission systems or components/(166) friction drive pulley or guide roll (174) pulley or guide roll including circumferential belt-receiving groove (177) and circumferentially continuous belt-engaging layer or insert of diverse material added on or between groove-forming flanges (178) layer or insert of resilient material
474/179474 endless belt power transmission systems or components/(166) friction drive pulley or guide roll (174) pulley or guide roll including circumferential belt-receiving groove (179) including connected discrete axially spaced groove-forming flanges
474/180474 endless belt power transmission systems or components/(166) friction drive pulley or guide roll (174) pulley or guide roll including circumferential belt-receiving groove (179) including connected discrete axially spaced groove-forming flanges (180) connected via nesting cylindrical or conical surfaces integral with the flanges
474/181474 endless belt power transmission systems or components/(166) friction drive pulley or guide roll (174) pulley or guide roll including circumferential belt-receiving groove (179) including connected discrete axially spaced groove-forming flanges (181) and abutting radial surfaces integral with the flanges
474/182474 endless belt power transmission systems or components/(166) friction drive pulley or guide roll (174) pulley or guide roll including circumferential belt-receiving groove (179) including connected discrete axially spaced groove-forming flanges (181) and abutting radial surfaces integral with the flanges (182) including connector extending through opening in abutting surfaces
474/183474 endless belt power transmission systems or components/(166) friction drive pulley or guide roll (174) pulley or guide roll including circumferential belt-receiving groove (179) including connected discrete axially spaced groove-forming flanges (181) and abutting radial surfaces integral with the flanges (182) including connector extending through opening in abutting surfaces (183) connector comprises tang integral with one of the surfaces
474/184474 endless belt power transmission systems or components/(166) friction drive pulley or guide roll (184) pulley or guide roll having plural, discrete belt-engaging faces for engaging flat belt
474/185474 endless belt power transmission systems or components/(166) friction drive pulley or guide roll (184) pulley or guide roll having plural, discrete belt-engaging faces for engaging flat belt (185) circumferentially spaced faces
474/186474 endless belt power transmission systems or components/(166) friction drive pulley or guide roll (184) pulley or guide roll having plural, discrete belt-engaging faces for engaging flat belt (185) circumferentially spaced faces (186) and axially spaced faces
474/187474 endless belt power transmission systems or components/(166) friction drive pulley or guide roll (184) pulley or guide roll having plural, discrete belt-engaging faces for engaging flat belt (187) each face has continuous circumferential periphery
474/188474 endless belt power transmission systems or components/(166) friction drive pulley or guide roll (188) including grooves or openings in cylindrical belt-engaging surface (e.g., for escape of air, etc.)
474/189474 endless belt power transmission systems or components/(166) friction drive pulley or guide roll (188) including grooves or openings in cylindrical belt-engaging surface (e.g., for escape of air, etc.) (189) circumferentially extending grooves
474/190474 endless belt power transmission systems or components/(166) friction drive pulley or guide roll (190) including nonmetallic belt-engaging surface portion
474/191474 endless belt power transmission systems or components/(166) friction drive pulley or guide roll (190) including nonmetallic belt-engaging surface portion (191) rubber
474/192474 endless belt power transmission systems or components/(166) friction drive pulley or guide roll (190) including nonmetallic belt-engaging surface portion (191) rubber (192) with embedded metal layer
474/193474 endless belt power transmission systems or components/(166) friction drive pulley or guide roll (190) including nonmetallic belt-engaging surface portion (193) leather
474/194474 endless belt power transmission systems or components/(166) friction drive pulley or guide roll (190) including nonmetallic belt-engaging surface portion (194) wood or paper
474/195474 endless belt power transmission systems or components/(166) friction drive pulley or guide roll (195) with spokes connecting rim to hub
474/196474 endless belt power transmission systems or components/(166) friction drive pulley or guide roll (195) with spokes connecting rim to hub (196) plural spoke sets axially spaced
474/197474 endless belt power transmission systems or components/(166) friction drive pulley or guide roll (197) cylindrical rim interconnected to axially spaced support members
474/198474 endless belt power transmission systems or components/(166) friction drive pulley or guide roll (198) with stationary support for pulley or guide roll
474/199474 endless belt power transmission systems or components/(166) friction drive pulley or guide roll (198) with stationary support for pulley or guide roll (199) and ball or roller bearing for mounting pulley or guide roll on support
474/200474 endless belt power transmission systems or components/(200) mobius belt
474/201474 endless belt power transmission systems or components/(201) belt having drive surfaces on opposite side edges of stacked plates having planar faces perpendicular to direction of belt movement
474/202474 endless belt power transmission systems or components/(202) positive drive belt
474/203474 endless belt power transmission systems or components/(202) positive drive belt (203) drive surfaces on belt formed by spherical or hemispherical elements
474/204474 endless belt power transmission systems or components/(202) positive drive belt (204) drive surfaces on belt formed in or interconnected by continuous flexible member
474/205474 endless belt power transmission systems or components/(202) positive drive belt (204) drive surfaces on belt formed in or interconnected by continuous flexible member (205) drive surfaces on longitudinally spaced teeth formed integral with flexible member
474/206474 endless belt power transmission systems or components/(202) positive drive belt (206) belt formed of rigid links
474/207474 endless belt power transmission systems or components/(202) positive drive belt (206) belt formed of rigid links (207) including nonmetallic part
474/208474 endless belt power transmission systems or components/(202) positive drive belt (206) belt formed of rigid links (208) including wire member coiled about pivotal axis between links
474/209474 endless belt power transmission systems or components/(202) positive drive belt (206) belt formed of rigid links (209) including ball or roller bearing circumferentially spaced about pivotal axis between links
474/210474 endless belt power transmission systems or components/(202) positive drive belt (206) belt formed of rigid links (210) links pivotable about diverse axes during operation (e.g., "universal" connection facilitating alignment with sprockets in diverse planes)
474/211474 endless belt power transmission systems or components/(202) positive drive belt (206) belt formed of rigid links (210) links pivotable about diverse axes during operation (e.g., "universal" connection facilitating alignment with sprockets in diverse planes) (211) ball-and-socket connection
474/212474 endless belt power transmission systems or components/(202) positive drive belt (206) belt formed of rigid links (212) link including integral surfaces forming inwardly opening groove (e.g., silent chain, etc.)
474/213474 endless belt power transmission systems or components/(202) positive drive belt (206) belt formed of rigid links (212) link including integral surfaces forming inwardly opening groove (e.g., silent chain, etc.) (213) plural links having laterally aligned groove-forming surfaces
474/214474 endless belt power transmission systems or components/(202) positive drive belt (206) belt formed of rigid links (212) link including integral surfaces forming inwardly opening groove (e.g., silent chain, etc.) (213) plural links having laterally aligned groove-forming surfaces (214) connector or bearing member extending through or positioned in laterally aligned openings in adjacent links is noncircular in transverse cross section
474/215474 endless belt power transmission systems or components/(202) positive drive belt (206) belt formed of rigid links (212) link including integral surfaces forming inwardly opening groove (e.g., silent chain, etc.) (213) plural links having laterally aligned groove-forming surfaces (214) connector or bearing member extending through or positioned in laterally aligned openings in adjacent links is noncircular in transverse cross section (215) multiple connector or bearing members extend through or positioned in common opening
474/216474 endless belt power transmission systems or components/(202) positive drive belt (206) belt formed of rigid links (212) link including integral surfaces forming inwardly opening groove (e.g., silent chain, etc.) (213) plural links having laterally aligned groove-forming surfaces (214) connector or bearing member extending through or positioned in laterally aligned openings in adjacent links is noncircular in transverse cross section (215) multiple connector or bearing members extend through or positioned in common opening (216) concave surface of one connector or bearing member abuts convex surface of another connector or bearing members
474/217474 endless belt power transmission systems or components/(202) positive drive belt (206) belt formed of rigid links (212) link including integral surfaces forming inwardly opening groove (e.g., silent chain, etc.) (213) plural links having laterally aligned groove-forming surfaces (214) connector or bearing member extending through or positioned in laterally aligned openings in adjacent links is noncircular in transverse cross section (215) multiple connector or bearing members extend through or positioned in common opening (216) concave surface of one connector or bearing member abuts convex surface of another connector or bearing members (217) plural connector or bearing members with concave surface abut convex surface or surfaces on another connector or bearing member
474/218474 endless belt power transmission systems or components/(202) positive drive belt (206) belt formed of rigid links (218) including diverse member for interconnecting opposite ends to complete loop (e.g., repair link for broken chain, etc.)
474/219474 endless belt power transmission systems or components/(202) positive drive belt (206) belt formed of rigid links (219) including separate locking member for retaining link-connector in laterally aligned openings through adjacent links
474/220474 endless belt power transmission systems or components/(202) positive drive belt (206) belt formed of rigid links (219) including separate locking member for retaining link-connector in laterally aligned openings through adjacent links (220) common locking member retains longitudinally spaced connectors
474/221474 endless belt power transmission systems or components/(202) positive drive belt (206) belt formed of rigid links (219) including separate locking member for retaining link-connector in laterally aligned openings through adjacent links (220) common locking member retains longitudinally spaced connectors (221) strandlike locking member (e.g., wire, etc.)
474/222474 endless belt power transmission systems or components/(202) positive drive belt (206) belt formed of rigid links (219) including separate locking member for retaining link-connector in laterally aligned openings through adjacent links (222) threaded connection between connector and locking member
474/223474 endless belt power transmission systems or components/(202) positive drive belt (206) belt formed of rigid links (219) including separate locking member for retaining link-connector in laterally aligned openings through adjacent links (223) locking member received in annular groove extending entirely around circumference of connector
474/224474 endless belt power transmission systems or components/(202) positive drive belt (206) belt formed of rigid links (219) including separate locking member for retaining link-connector in laterally aligned openings through adjacent links (224) locking member includes portion disposed within opening which receives connector
474/225474 endless belt power transmission systems or components/(202) positive drive belt (206) belt formed of rigid links (219) including separate locking member for retaining link-connector in laterally aligned openings through adjacent links (224) locking member includes portion disposed within opening which receives connector (225) locking member extends through all aligned openings
474/226474 endless belt power transmission systems or components/(202) positive drive belt (206) belt formed of rigid links (226) link including discrete members forming laterally spaced sides of opening for pulley tooth
474/227474 endless belt power transmission systems or components/(202) positive drive belt (206) belt formed of rigid links (226) link including discrete members forming laterally spaced sides of opening for pulley tooth (227) with particular structure facilitating disassembly of adjacent links
474/228474 endless belt power transmission systems or components/(202) positive drive belt (206) belt formed of rigid links (226) link including discrete members forming laterally spaced sides of opening for pulley tooth (228) with discrete connector extending through laterally aligned apertures in adjacent links
474/229474 endless belt power transmission systems or components/(202) positive drive belt (206) belt formed of rigid links (226) link including discrete members forming laterally spaced sides of opening for pulley tooth (228) with discrete connector extending through laterally aligned apertures in adjacent links (229) connector has bearing surface which is noncircular in transverse cross section
474/230474 endless belt power transmission systems or components/(202) positive drive belt (206) belt formed of rigid links (226) link including discrete members forming laterally spaced sides of opening for pulley tooth (228) with discrete connector extending through laterally aligned apertures in adjacent links (230) connector connects sequential links each having discrete members forming laterally spaced sides
474/231474 endless belt power transmission systems or components/(202) positive drive belt (206) belt formed of rigid links (226) link including discrete members forming laterally spaced sides of opening for pulley tooth (228) with discrete connector extending through laterally aligned apertures in adjacent links (230) connector connects sequential links each having discrete members forming laterally spaced sides (231) with sleeve rotatable with respect to each link for engaging pulley tooth
474/232474 endless belt power transmission systems or components/(202) positive drive belt (206) belt formed of rigid links (232) link including common member forming laterally spaced sides of opening for pulley tooth
474/233474 endless belt power transmission systems or components/(202) positive drive belt (206) belt formed of rigid links (232) link including common member forming laterally spaced sides of opening for pulley tooth (233) with discrete member interconnecting sequential pulley-tooth-receiving links
474/234474 endless belt power transmission systems or components/(202) positive drive belt (206) belt formed of rigid links (232) link including common member forming laterally spaced sides of opening for pulley tooth (233) with discrete member interconnecting sequential pulley-tooth-receiving links (234) connector member inserted through lateral opening in pulley-tooth-receiving links
474/235474 endless belt power transmission systems or components/(202) positive drive belt (206) belt formed of rigid links (232) link including common member forming laterally spaced sides of opening for pulley tooth (235) common member surrounds opening for pulley tooth on all sides
474/236474 endless belt power transmission systems or components/(202) positive drive belt (206) belt formed of rigid links (232) link including common member forming laterally spaced sides of opening for pulley tooth (235) common member surrounds opening for pulley tooth on all sides (236) member formed from sheet metal
474/237474 endless belt power transmission systems or components/(237) friction drive belt
474/238474 endless belt power transmission systems or components/(237) friction drive belt (238) including plural interconnected and transversely spaced pairs of oppositely facing side-drive surfaces (e.g., plural "v-belts", etc.)
474/239474 endless belt power transmission systems or components/(237) friction drive belt (239) having drive surface on helically coiled wire or cord
474/240474 endless belt power transmission systems or components/(237) friction drive belt (240) including plural interconnected members each having a drive surface facing in a common direction
474/241474 endless belt power transmission systems or components/(237) friction drive belt (240) including plural interconnected members each having a drive surface facing in a common direction (241) forming imbricate structure
474/242474 endless belt power transmission systems or components/(237) friction drive belt (240) including plural interconnected members each having a drive surface facing in a common direction (242) belt has oppositely facing side drive surfaces (e.g., "v-belt", etc.)
474/243474 endless belt power transmission systems or components/(237) friction drive belt (240) including plural interconnected members each having a drive surface facing in a common direction (242) belt has oppositely facing side drive surfaces (e.g., "v-belt", etc.) (243) surfaces on ball or roller elements
474/244474 endless belt power transmission systems or components/(237) friction drive belt (240) including plural interconnected members each having a drive surface facing in a common direction (242) belt has oppositely facing side drive surfaces (e.g., "v-belt", etc.) (244) oppositely facing surfaces are on pair of discrete elements
474/245474 endless belt power transmission systems or components/(237) friction drive belt (240) including plural interconnected members each having a drive surface facing in a common direction (242) belt has oppositely facing side drive surfaces (e.g., "v-belt", etc.) (244) oppositely facing surfaces are on pair of discrete elements (245) and sequential pairs are interconnected longitudinally by distinct pivot elements
474/246474 endless belt power transmission systems or components/(237) friction drive belt (240) including plural interconnected members each having a drive surface facing in a common direction (246) plural, inwardly facing drive surfaces along the direction transverse to longitudinal extent of belt
474/247474 endless belt power transmission systems or components/(237) friction drive belt (240) including plural interconnected members each having a drive surface facing in a common direction (246) plural, inwardly facing drive surfaces along the direction transverse to longitudinal extent of belt (247) and plural, inwardly facing drive surfaces along the direction parallel to longitudinal extent of belt
474/248474 endless belt power transmission systems or components/(237) friction drive belt (248) including link-chain coextensive with continuous surface belt
474/249474 endless belt power transmission systems or components/(237) friction drive belt (249) including groove, openings or pockets formed in belt surface and arranged along entire length of belt (e.g., for flexibility, air escape, etc.)
474/250474 endless belt power transmission systems or components/(237) friction drive belt (249) including groove, openings or pockets formed in belt surface and arranged along entire length of belt (e.g., for flexibility, air escape, etc.) (250) grooves transversely extending on belt surface
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