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...that "patent leather" got its name because the process of applying the polished black finish to leather was once patented?
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| Number | Title | Issue Date |
| 7351169 | Utility machinery and associated control arrangements A power transmission device for utility machinery is disclosed, the device including: a) a sleeve supporting a first sheave member having a first face; b) a hub received through the sleeve and moveable axially in relation thereto, the hub supporting a second sheave ... | 04/01/2008 |
| 7244202 | Step motor positioning structure for belt-type continuously variable transmission A step motor positioning structure for a belt-type continuously variable transmission having a speed-change control valve for controlling a primary pressure to be supplied to a primary pulley, a servo link, and a step motor for driving, by way of the servo link, the... | 07/17/2007 |
| 7029408 | Variable speed transmission and method of use A variable speed transmission includes an actuator mechanism that can be remotely activated to cause engagement of a drive unit and to subsequently vary the speed of the drive unit using the same activation mechanism. The variable speed transmission can include a fi... | 04/18/2006 |
| 6962543 | Continuously variable belt drive system A continuously variable belt drive system includes a driving pulley assembly, a driven pulley assembly and a V-shaped belt engaged to transfer rotary power therebetween. The driven pulley assembly includes a ratio adjustment mechanism that adjusts the position of a ... | 11/08/2005 |
| 6938508 | Ventilated clutch having exhaust hub The invention provides for cooling an endless belt in a continuously variable transmission (CVT). The CVT is comprised of a drive clutch, a driven clutch, and an endless belt disposed about the drive and driven clutches. Both the drive and driven clutches include an... | 09/06/2005 |
| 6762417 | System in which a rotating body is connected to a rotary shaft in an ion implanter A rotary shaft and a rotating body are connected in such a way as to stably control the tilt of a wafer platen in an ion implanter. The rotary shaft has a key way and the rotating body has a boss into which the rotary shaft extends. A key integrates the rotary shaft... | 07/13/2004 |
| 6755759 | Speed transmission for self-propelled lawnmower and mower provided with such a transmission The invention relates to a speed transmission for a mower, in particular a lawnmower, comprising a speed changer. This transmission is characterized in that the speed changer is constituted by a transmission with a belt (5) between a drive pulley (6) m... | 06/29/2004 |
| 6561935 | Forage box clutch mechanism The present invention is a control apparatus for an implement transmission. The transmission is operably coupled to a plurality of driven mechanisms for providing a driving power from a prime mover to the plurality of driven mechanisms. A shift assembly h... | 05/13/2003 |
| 6478702 | Continuously-variable-ratio belt drive assembly The drive assembly has: an input member and an intermediate shaft; an axial clutch device for connecting the input member and the intermediate shaft in rotary manner; and a pulley connected in rotary manner to the intermediate shaft and defined by two hal... | 11/12/2002 |
| 6224506 | Forage box clutch mechanism The present invention is a control apparatus for an implement transmission. The transmission is operably coupled to a plurality of driven mechanisms for providing a driving power from a prime mover to the plurality of driven mechanisms. A shift assembly h... | 05/01/2001 |
| 5803847 | Variable speed mechanism and method for controlling the speed of an associated vehicle A variable speed mechanism for propelling an associated lawn mowing apparatus has a variable pitch pulley assembly, a belt which connects the variable pitch pulley assembly to a transmission, a control arm assembly for controlling the variable pitch pulle... | 09/08/1998 |
| 5795256 | Jig apparatus for assembling belt onto variator A jig apparatus is used in extending a belt across a pair of pulleys of a variator for a transmission of a motor vehicle. The variator has the pair of pulleys, a groove width of each of which is variable, and a belt for driving the pulleys. A supporting b... | 08/18/1998 |
| 5405158 | Variable ratio belt drive system A drive system suitable for a bicycle and capable of providing various drive ratios comprising first and second pairs of conical members, each pair including primary and secondary conical members, both of which are rotatable about a first or second transv... | 04/11/1995 |
| 5334103 | Insitu adjustable dual range belt drive assembly A variable diameter belt type power transfer assembly having a drive sheave and a driven sheave, both of which are adjustable and include a pair of opposing coaxial flanges, one of which is axially movable relative to the other, is disclosed wherein both ... | 08/02/1994 |
| 5282773 | Dual range variable speed transmission A variable diameter belt type power transfer assembly having a drive sheave and a driven sheave, both of which are adjustable and include a pair of opposing coaxial flanges, one of which is axially movable relative to the other, is disclosed wherein both ... | 02/01/1994 |
| 5191755 | Combine harvester with dual range variable speed blower A variable diameter belt type power transfer assembly having a drive sheave and a driven sheave, both of which are adjustable and include a pair of opposing coaxial flanges, one of which is axially movable relative to the other, is disclosed wherein both ... | 03/09/1993 |
| 4704013 | Auxiliary adjusting mechanism for optical instruments A precision optical instrument includes an auxiliary focusing mechanism coupled to the primary focusing mechanism such that rotation of the auxiliary mechanism rotates the primary mechanism.... | 11/03/1987 |
| 4653345 | Single control, mechanical variable speed drive A mechanical, infinitely variable speed drive is provided with reverse actuation and a single control lever. The drive includes a shaft with an output gear and two driven, face-to-face bevel gears. Shifting mechanism connects either or neither bevel gear ... | 03/31/1987 |
| 4515576 | Variable speed transmission A variable speed transmission (20) includes a sprocket (46) mounted on a first shaft (22) for rotation therewith. A variable effective diameter pulley (30) is mounted for rotation on a driven shaft (32). The pulley includes a pair of pulley halves (80, 82... | 05/07/1985 |
| 4504248 | Variable and reversible transmission A variable and reversible transmission, in which two co-linear shafts are provided with adjustably-locatable generally semi-spherical drive components or heads, with control means for changing and holding selected adjustments of the heads; and the heads d... | 03/12/1985 |
| 4398899 | Variable speed pulley A variable speed pulley or sheave with a broad speed range is designed particularly for self-propelled lawn mowers. The variable speed pulley is mounted on a drive shaft of a gear unit in the form of a transaxle or transmission located on the mower and is... | 08/16/1983 |
| 4223771 | Brake clutch An apparatus for selectively transmitting power between a rotating shaft and a belt including an integral brake member. The apparatus includes a pulley affixed to the shaft and which frictionally engages the belt. The pulley includes a pair of sheave halv... | 09/23/1980 |
| 4196859 | Spreader control A material unloader having a conveyor and a distributing unit includes a control assembly operative from the tractor or towing vehicle by a single hydraulic control. A jaw clutch is provided for engaging and disengaging the distributing unit drive and the... | 04/08/1980 |
| 4187732 | Sheave assembly for V-belt type infinitely variable transmissions Sheave assembly for V-belt type transmission including fixed and movable sheave elements which cooperate with each other. A rotatable disc is mounted on the sheave shaft and engaged with the movable sheave element through a cam device. The disc is adapted... | 02/12/1980 |
| 4119326 | Variable speed bicycle A variable speed bicycle including a variable speed pulley assembly connected between the bicycle pedal assembly and the bicycle rear axle, the movable pulley halves of the variable speed pulley assembly being actuated by cables, each cable having one end... | 10/10/1978 |
| 4089232 | Variable speed drive system for carding machine A variable speed drive system for a carding machine employs a variable pitch pulley assembly that rotates the feed cylinder and doffer cylinder at a constant slow speed as the sliver is made up to the coiler can, and after a predetermined time lapse the s... | 05/16/1978 |
| 4078442 | Variable speed drive The drive has axially opposed pairs of conical discs on parallel driving and driven shafts interconnected by a chain having traction members on the ends of the chain joint pins. The traction members are shaped to collect and wedge a high pressure lubricat... | 03/14/1978 |
| 4048864 | Drive with continuously adjustable speed variation A belt driving mechanism, providing a speed ratio that is infinitely variable between predetermined limits, of the type in which a belt embraces two pulleys adjustable in effective diameter depending on the separation of two conical discs, is described wh... | 09/20/1977 |
| 3965766 | Variable drive pulley construction In a variable speed drive having a drive pulley and a driven pulley, both of the pulleys having at least one disc movable axially with respect to another disc making up the pulley, the pulleys being housed in an enclosure with an enclosure wall adjacent t... | 06/29/1976 |
