Abstract: A differential device may include a housing having an inner surface and an outer surface, said inner surface having an outer ring gear and said outer surface having a first receptacle and a sun gear positioned within the housing, the sun gear having a second receptacle positioned opposite the first receptacle. The differential device may further include an intermediate gear interposed between the sun gear and the outer ring gear, a bearing interposed between the inner surface of the housing and the sun gear, and a central axis intersecting the first receptacle and the second receptacle. The housing and the sun gear may be configured to rotate freely about the central axis.

Abstract: An input shaft being configured into spline engagement with an input wheel wherein the input wheel slides axially along the input shaft; an output shaft into engagement with the input shaft, and wherein an output wheel is configured to slide axially along said output shaft; a variator wheel being configured to drive the input wheel or output wheel without direct contact; a traction fluid to enable the variator wheel to drive at least one of the input wheel and output wheel without direct contact; a toroidal cavity for containing the traction fluid and form an enveloping toroidal cavity when the input wheel and output wheel are aligned together; and an actuator for controlling the axial sliding of the input and output wheel on their respective splined shafts.

Abstract: An epicycloid planet gear cam that converts rotational movement of a driveshaft into linear movement of an output device is disclosed. An epicycloid planet gear is assembled inside a stationary housing with an internal stationary ring gear. A driveshaft eccentric is connected to a driveshaft. The driveshaft eccentric rotates freely in a mounting hole of the epicycloid planet gear. When the driveshaft rotates, the driveshaft eccentric engages the epicycloid planet gear against the stationary ring gear and causes the epicycloid planet gear to rotate. A cam follower pin attached to an output device is held, via a follower roller ball against a cam track of the epicycloid planet gear. As the epicycloid planet gear rotates, the recessed cam track depth causes the cam follower pin to move up or down thereby moving the output device.

Abstract: A cycloid pinwheel reducer includes a housing, two cycloid pinwheels, a plurality of rollers, an output flange, and a first transmission assembly. The housing forms an inner teeth ring in an inner wall of the housing. The two cycloid pinwheels are received in the housing. Each cycloid pinwheel forms a meshing portion. The rollers roll in position between the housing and the meshing portions. The output flange is non-rotatably connected with the cycloid pinwheels. The first transmission assembly includes a first transmission gear, a second transmission gear meshed with the first transmission gear. The second transmission gear includes a base body, a second teeth portion positioned on the base body, a first eccentric portion, and a second eccentric portion. The second teeth portion is meshed with the first transmission gear. The two cycloid pinwheels is sleeved on the first and second eccentric portions respectively.

Abstract: A pump device is operated according to a method for varying the duration of a supply stroke of a pump element, the supply stroke of which is actuated by a rotatably driven pump shaft (P) over a predetermined rotational position range of the pump shaft. In the method, the pump shaft (P) is rotatably driven by a drive shaft (A) and the angular speed of the pump shaft, at a constant angular speed of the drive shaft, is increased and decreased at least once during one revolution of the pump shaft.

Abstract: A knurled press-fitting portion and an annular groove, which receives foreign matter and is formed to extend in a circumferential direction in front of the press-fitting portion of a cylindrical protruding portion, are provided at an outer peripheral surface of the protruding portion of an output shaft. A fitting portion, which is fitted to a coupling tube by press-fitting, is formed at an outer periphery of an opening end of the protruding portion. An outer peripheral surface of the cylindrical fitting portion and an inner peripheral surface of the cylindrical coupling tube coupled to a Z4 gear are fitted and coupled to each other. The annular groove is closed by the fitting portion in a state where the protruding portion and the coupling tube are coupled to each other. The annular groove is configured so as to prevent foreign matter from being discharged toward a bearing gear.

Abstract: A wheel drive unit includes: a planetary gear mechanism including a planetary gear and an internally-toothed gear; a casing integrated with the internally-toothed gear, a wheel being attached to the casing, and the casing transmitting rotation of the internally-toothed gear to the wheel; a bearing nut configured to prevent axial movement of the casing; and an oil seal provided more toward an interior of a vehicle than the planetary gear mechanism and axially fixed with respect the casing. An inner diameter of the detachment prevention member is smaller than an outer diameter of the externally-toothed gear.

Abstract: A gear reduction assembly may include an input shaft, a first spur gear, and a second spur gear. The first and second spur gears may be coupled to one another. At least one of the first spur gear and the second spur gear may be associated with the input shaft such that the input shaft drives at least one of the first and second spur gears. The gear reduction assembly may further include a first internal gear engaged with the first spur gear, a second internal gear engaged with the second spur gear, and a hub associated with the first internal gear The first and second internal gears have a first number of teeth and a second number of teeth, respectively, and the first number of teeth differs from the second number of teeth by from one to five teeth. The gear reduction assembly may be included in a winch.

Abstract: A continuously variable transmission apparatus includes an input shaft, an output shaft, a continuously variable transmission mechanism, a differential gear mechanism and a bypass shaft. The continuously variable transmission mechanism is placed between the input shaft and the output shaft and is adapted to conduct rotation of the input shaft to the differential gear mechanism after changing a speed of the rotation. The bypass shaft is placed coaxially with the input shaft and the output shaft and is adapted to conduct the rotation of the input shaft to the differential gear mechanism while bypassing the continuously variable transmission mechanism. The differential gear mechanism is adapted to conduct the rotation from the continuously variable transmission mechanism and the bypass shaft to the output shaft.

Abstract: A coupling comprises a pair of clutch end members, a clutch centre member disposed between the clutch end members, and an actuator coupled to one of the end members. Each end member includes concentric V-grooves disposed on a respective face thereof. The centre member is axially movable between the end members, and includes a pair of opposing surfaces. One of the opposing surfaces includes concentric V-grooves configured to mesh with the V-grooves of one of the end members. Another of the opposing surfaces includes concentric V-grooves configured to mesh with the V-grooves of another of the end members. The actuator is configured to couple the end members and the centre member together by urging the V-grooves of the end members into engagement with the V-grooves of the centre member.

Abstract: A motor unit includes a motor shaft for receiving a motor provided driving force and an auxiliary shaft for receiving an externally provided driving force. A first torque transmission path transfers the externally provided driving force to a drive mechanism and a second torque transmission path transfers the motor provided driving force also to the drive mechanism. A first one way drive is provided in the first torque transmission path between the auxiliary shaft and the drive mechanism such that when the drive mechanism is being driven by the motor provided driving force through the second torque transmission path, the auxiliary shaft is able to freewheel. The motor unit can drive any apparatus where the externally provided driving force is provided by manually operable pedals fixed for rotation with the auxiliary shaft.

Abstract: In a gearing, in particular coaxial gearing, hollow shaft gearing, hypoid gearing, axial gearing or linear gearing, with a driving element (7), an element (3) and an output element (11), a stepping-up and transmission of a driving torque between driving element (7) and output element (11) are to take place via a plurality of movable tooth segments (5).

Abstract: A second shaft is configured by a shaft portion extending outside a housing in which a nutation gear mechanism is housed, a housing portion, and a cylindrical portion. A communicating hole, through which an outside and an inside of the housing portion communicate with each other, is formed in the shaft portion. A preload applying mechanism includes a preload adjusting plug that is screwed to the housing portion and is able to be operated from outside through the communicating hole, a wave washer compressed in accordance with a position of the preload adjusting plug, and a lock nut that is screwed to the housing portion of the second shaft so as to press the preload adjusting plug toward the nutation gear mechanism.

Abstract: A speed change gear device is provided with a housing, a first member supported rotatably about a predetermined rotational axis, a shaft member formed with an external gear, an annular member formed with an internal gear meshing with the external gear, and a transmission mechanism for transmitting a rotational component only of the annular member to the shaft member or a disc member arranged to be rotatable relative to the housing. The external gear differs from the internal gear in the number of teeth. Further, the first member is formed with a receiving hole that receives the annular member at a position where the center of the annular member is at a predetermined distance from the rotational axis. Then, the annular member is received in the receiving hole rotatably relative to the first member.

Abstract: The present invention is structured by using one or both of an active wheel and a passive wheel being composed of an eccentric transmission wheel and being combined with a synchronous transmission belt for forming an eccentric wheel transmission wheel series, so that in the reciprocal treadle performed by the human's feet, when the feet input forces at different angles from the treadle shafts of the treadles to an active wheel shaft combined on the active wheel through cranks, the active wheel forms different transmission speed ratios relative to the passive wheel according to the treadle angle.

Abstract: A work machine includes an internal combustion (IC) engine having an output, and an infinitely variable transmission (IVT) coupled with the IC engine output. The IVT includes a hydraulic module and a mechanical drivetrain module. A pressure transducer is associated with and provides an output signal representing a hydraulic pressure within the hydraulic module. At least one electrical processing circuit is configured for controlling the IC engine output, dependent upon the output signal from the pressure transducer.

Abstract: A variable speed ratio transmission including a drive element having a spherical frictional engagement surface centered on a primary axis, a carrier having a roller axle orbiting the primary transmission axis spaced from the spherical surface by a predetermined distance, and a roller rotatably and slidably mounted on the roller axle. The roller axle is angled with respect to a tangent of the spherical engagement surface so the roller tends to slide axially along the roller axle toward the frictional engagement surface to frictionally engage the engagement surface when a relative motion between the drive element and the carrier is in an engaging drive direction and to slide axially along the roller axle away from the frictional engagement surface of the drive element to disengage the engagement surface when the relative motion between the drive element and the carrier is in a disengaging drive direction opposite the engaging direction.

Abstract: A ratio changing method and apparatus includes, in a hypocycle arrangement, an input drive wheel (2), an output drive wheel (3) and a transfer ring (1). The input drive wheel (2) drives around the exterior of the transfer ring (1). The transfer ring (1) is constrained against rotation about its own axis but oscillates about the outward drive wheel (3), in parting rotation to the output drive wheel (3) as a result a simple and effective ratio changing apparatus is provided.

Abstract: In a drive unit (10) of an adjuster (80) in a vehicle, having at least one particularly electronically commutated motor (12) and at least one gear stage (14) provided on the output side of the motor (12), the gear stage (14) is designed as a differential gear, which by making use of two different speeds and/or directions of rotation causes a movement of an output (54) around an axis (A).

Abstract: A reduction gear includes a case including a hollow cylinder having teeth on its inner wall; a ring gear having outer teeth meshed with the teeth of the cylinder, and inner teeth; and an eccentric gear assembly mounted in the cylinder and including a hollow eccentric shaft including rear and front eccentric sections, and first and second gears rotatably secured onto the rear and front eccentric sections respectively. Rotating an input shaft in a first speed will rotate the eccentric shaft to rotate the first and second gears around the inner teeth of the ring gear eccentrically, thereby rotating the output shaft in a second speed lower than the first speed. The invention has an increased number of meshed teeth between each of the first and second gears and the ring gear so as to distribute a radial load to more teeth in rotation.

Abstract: A motor-incorporated hypocycloid-type speed reducer includes: a motor housed in a case; a first larger internal gear; a second smaller internal gear coaxial with a motor shaft; an output shaft coaxial with the motor shaft, the output shaft being provided with the second internal gear; and an external gear. A motor core of the motor is provided with an eccentric portion eccentric to the motor shaft at a predetermined degree. The external gear, which has a first external gear engaged with the first internal gear and a second external gear engaged with the second internal gear, is further provided with a rotor-receiving portion rotatable integrally with the eccentric portion of the motor core. The rotor-receiving portion is coaxial with the first external gear and the second external gear.

Abstract: A self regulating continuously variable torque transmission in which two planetary gears of lesser diameter drive two internal gears of greater diameter by orbiting and rotating around an output shaft which forms the rotational axis of the ring gears. Planetary gear orbit is constant while rotation is variable. Loads greater than available torque cause the ring gears to rotate at a lesser velocity than torque input, causing the planetary gears to rotate at a lesser velocity than torque input. To compensate for this, a carrier mounted on the output shaft rotates at a reduced velocity, reducing planetary gear rotation. This carrier provides two diametrically opposed axes, one each for two crankshafts which rotate on these axes during reduced planetary gear rotation, carrying each planetary gear in orbit around a separate axis. These two movements are created by an input crankshaft with one throw and a second crankshaft mounted by bearings on the input throw.

Abstract: A steering drive for a steeled wheel of an industrial truck, particularly a rear wheel of a three-wheeled industrial truck, comprising a steering bolster supporting the rear wheel which is supported to be pivotable about a vertical steering axle inside the flame of the industrial truck, a steeling motor coaxial with the steering axle, a bearing assembly between the flame of the industrial truck and the bolster, and a steering transmission between the steering motor and bolster, wherein the steering transmission has a single-stage or multi-stage stepped planetary mechanism or planetary coupler mechanism which is coaxial with the steering axle and the bearing assembly for the bolster is arranged within the steering transmission.

Abstract: A variable-ratio transmission device for use in connection with a machine, such as a vehicle, comprising a stepless speed change gear with a continuously variable-ratio over an extremely wide range of speeds.

Abstract: Continuously variable speed power transmission with and without integrated motor/generator components. The transmission has an input member rotatable about an input axis, an output member rotatable about an output axis, a reaction control rotor with optional integrated motor/generator components for selective rotation about the input axis, a pericyclic motion converter mounted for pericyclic motion about the input axis, and a control means for selectively adjusting the rate of rotation of the reaction control rotor relative to the input member. A bevel gear construction is a preferred embodiment of the transmission. A method for varying speed ratios using pericyclic motion is described.

Abstract: In the case of malfunctioning of an inhibitor switch of an automatic transmission, a current vehicle speed is compared with a maximum vehicle speed of a reverse speed when the current vehicle speed is other than 0. The transmission is then controlled to a target shift-speed determined on the basis of vehicle driving state parameters, when the current vehicle speed is higher than the maximum vehicle speed of the reverse speed.

Abstract: A continuously variable transmission has an orbital gear with an eccentric pin. The orbital gear rotates about an internal gear and has a radius one-third of the radius of the internal gear. Arcuate members are provided for transmitting linear motion of a drive rod to an output rod. A continuously variable transmission is provided with an output shaft speed being substantially constant at a given constant input shaft speed.

Abstract: Continuously variable speed power transmission with integrated motor/generator components. The transmission has an input member rotatable about an input axis, an output member rotatable about an output axis, a reaction control rotor with integrated motor/generator components for selective rotation about the input axis, a pericyclic motion converter mounted for nutational motion about the input axis, and a control means for selectively adjusting the rate of rotation of the reaction control rotor relative to the input member. The continuously variable speed power transmission with integrated motor/generator components can be located in a vehicle wheel hub.

Abstract: The present invention comprises a vehicle speed monitoring device which enables a driver to enter a speed tolerance profile that represents the driver's personal travel speed preferences and which alerts the driver when the vehicle speed falls outside the speed tolerance profile. Specifically, the speed tolerance profile consists of a number of speed tolerance ranges, each associated with a particular posted speed limit. As the vehicle travels through various map zones, the applicable posted speed limit is determined using a customized GPS map. The device determines the vehicle location, speed and the posted speed limit and then compares the vehicle speed using a running average to see whether vehicle speed is within the driver's speed tolerance profile and if not, the device provides the driver with a visual and/or audible warning according to the driver's operational preferences.

Abstract: A transmission provided with an input shaft and an output shaft supported on a first axis so as to freely rotate. The transmission is also provided with a transmission eccentric shaft mounted on the input shaft so as to freely rotate, the eccentric shaft having a declination axis crossing the first axis with a predetermined angle; a transmission input plate mounted on the transmission eccentric shaft so as to freely rotate around the declination axis; and an output eccentric shaft supported on an end portion of the input shaft on the output shaft side so as to freely rotate, where the output eccentric shaft is arranged on the declination axis.

Abstract: A low-vibration and precise electrically driven actuator is provided. A disk is fixed to an input shaft, and a planetary gear is fixed to an output shaft. A circular recess is formed in the disk so as to be eccentric with respect to the input shaft. A ring gear engaged with the planetary gear is rotatably supported by the circular recess. A weight portion W is provided in an unrecessed portion of the disk in order to recover an axial dynamic balance of the disk, which is lost by arranging the circular recess and the ring gear. Since the planetary gear is coaxially fixed to the output shaft, it does not make an eccentric motion and thus its dynamic balance is secured. Accordingly, the axial dynamic balance can be secured in every individual rotating element composing a gear device. The gear device is employed in the electrically driven actuator for the purpose of providing an electrically driven actuator with a low vibration and a property of high precision.

Abstract: A method is proposed for controlling an automatic transmission driven by a prime mover in which a shift from a first transmission ratio to a second transmission ratio occurs in the form of a pull upshift or push downshift or a pull downshift or push upshift by a first clutch opening and a second clutch closing and an electronic transmission control device controls, via electromagnetic valves, the pressure curve of the first and of the second clutch during the shifting operation. The shifting operation is divided into various shifting phases, an engine intervention taking place in the load-transfer (LÜ) of the gradient-setting phase (GE), the sliding phase (GL), the gradient-reduction phase (GA) and the closing phase (S), an engine torque and/or a characteristic value that determines the engine torque being transferred from the transmission control device to an engine control device of the prime mover.

Abstract: A dynamic balance is improved in an S-P-C type planetary gear mechanism. An input shaft is fixed to a disk, and an output shaft is fixed to a planetary gear. A circular recess is formed in the disk so as to be eccentric to the input shaft. A ring gear engaged with the planetary gear is rotatably supported by the circular recess. A weight-reduced portion having the same depth as that of the recess is provided in a part of the disk where the circular recess is not formed, and a weight portion is formed to recover the axial dynamic balance of the disk, which is lost by arranging the circular recess and the ring gear. Since the planetary gear is fixed coaxially to the output shaft, it does not perform an eccentric motion and thus secures the dynamic balance thereof. Accordingly, the dynamic balance in the axial direction is secured for every individual rotating element constructing a gear device.

Abstract: A continuously variable speed power transmission includes a rotatable input member, a rotatable output member including a plurality of rearwardly directed output face cams. A reaction control rotor selectively rotatable about the input axis includes a plurality of forwardly directed reaction face cams opposed to the output face cams. A pericyclic motion converter rotatably mounted for nutational motion about the input axis includes a plurality of load transmitting follower members simultaneously engageable with the output face cams and with the reaction face cams. A control mechanism selectively adjusts the rotational rate of the reaction control rotor relative to the input member such that relative rotation between the reaction control rotor and the input member results in both rotation and nutation of the pericyclic motion converter about the input axis resulting in a continuously variable change of ratio of the rotational speed of the output member relative to the input member.

Abstract: A driving force transmission apparatus achieves a high speed ratio and has a compact and inexpensive structure. The apparatus includes speed change elements including a cam portion, a gear, an internal gear and a correction plate, a connecting arrangement including a second clutch plate, a third clutch plate, an electromagnetic coil and a coil spring, and a first clutch plate, all arranged on a common shaft. This arrangement achieves both a high speed ratio and a compact and inexpensive structure.

Abstract: A fully automatic infinitely variable torque converter bicycle transmission makes use of cam followers acting between a driver wheel connected with an input and a follower wheel connected with an output. Torque is varied by varying a radial position of the cam followers relative to the driver wheel and the follower wheel, wherein a return of the cam followers toward an outer radial position is delayed. All force transmitting components of the apparatus are mechanically engaged without relying on friction.

Abstract: The present invention includes shift mechanisms, lock assemblies and methods of adjusting a gear ratio of a transmission. According to one aspect of the invention, a shift mechanism configured to adjust a transmission includes a central axle defining a central axis; a drive member configured to rotate about the central axle responsive to an application of a driving force to the drive member; and a mount assembly comprising a mount support and an eccentric mount, the mount support being provided about the central axle and the eccentric mount defining an eccentric axis, the eccentric mount being movably coupled with the mount support to provide radial adjustment of the eccentric axis relative to the central axis and wherein resultant forces are generated responsive to the eccentric axis being spaced from the central axis, and the mount assembly being configured to utilize at least one resultant force to assist with movement of the eccentric mount with respect to the mount support.

Abstract: The principle of the Coronel Effect resulting from an individual gear simultaneously producing two individually controllable driving functions motivating a second engaged driven gear is described. This principle is incorporated within the Coronel Effect Positively Infinitely Variable (CEPIV) transmission, a true all-geared torque converting positively infinitely variable rotary motion transmission incorporating a user-actuated independent input control to continuously infinitely varies the transmission output between a geared-neutral configuration and full-speed output. The input control varys the tilt angle of a CE drive gear to vary: (1) the degree of CE drive gear circumrevolving production of the Coronel effect counterrotation of an engaged output receiving gear, and (2) the extent of output receiving gear orbiting of the mechanism central axis. The concurrent rotational speed of the CE drive gear is utilized to neutralize the Coronel effect and produce the geared-neutral configuration.

Abstract: The invention relates to a mechanical gearing. This comprises a frame, a first shaft mounted rotatably on the frame and carrying a pair of friction wheels which are disposed at a distance from each other and which have mutually facing friction surfaces together converging outward, a second shaft which is mounted on the frame parallel to but eccentrically relative to the first shaft and which carries a friction wheel which has an internal annular friction surface situated axially between the friction wheels of the first shaft, and a closed belt of mutually abutting push links. The belt forms on mutually opposite sides surfaces co-acting with the pair of friction wheels and on a radially outermost surface forms a surface co-acting with the single belt engaging wheel.

Abstract: A transmission 10 includes a drive member 12 which is rotatable about a first axis of rotation 20 and a driven member 14 which is rotatable about a second axis of rotation 26 and which is spaced axially from the drive member 12. The transmission 10 further includes an intermediate member 34 which is positioned between the drive and driven members 12, 14 and which is rotatable about a third axis of rotation 36. A plurality of axially displaceable drive elements 38 is provided for transmitting drive between at least one of the drive member and the intermediate member and the intermediate member and the driven member. The eccentricity of the intermediate member 34 relative to the drive and driven members 12, 14 is adjustable thereby to permit adjustment of the transmission ratio.

Abstract: A Benesch transmission transmits power from an input shaft to an output shaft, wherein the input shaft defines a first axis and the output shaft defines a second axis, includes a first member including a contacting surface which extends along at least a portion of a circle. The first member is coupled to the input shaft such that, upon rotation of the input shaft about the first axis, the first member moves so that a central axis of the circle orbits the first axis, and wherein a distance between the central axis and the first axis is variable. A plurality of second members are coupled to the output shaft and extend away from the second axis. Each of the second members extends within the circle such that, upon motion of the first member relative to the first axis, contact between the contacting surface and the second members causes rotation of the output shaft about the second axis.

Abstract: A Benesch transmission transmits power from an input shaft to an output shaft, wherein the input shaft defines a first axis and the output shaft defines a second axis, includes a first member including a contacting surface which extends along at least a portion of a circle. The first member is coupled to the input shaft such that, upon rotation of the input shaft about the first axis, the first member moves so that a central axis of the circle orbits the first axis, and wherein a distance between the central axis and the first axis is variable. A plurality of second members are coupled to the output shaft and extend away from the second axis. Each of the second members extends within the circle such that, upon motion of the first member relative to the first axis, contact between the contacting surface and the second members causes rotation of the output shaft about the second axis.

Abstract: A variable ratio epicyclic drive transmission comprises a drive shaft (10), a driven shaft (11), a sun wheel (12) fixed on the driven shaft (11), a stationary outer ring member co-axial with said shafts, a planet carrier (15) fixed to the drive shaft (10) and three planet wheels (19) swing mounted on said carrier and in engagement with said ring member. The ring member comprises an almost complete, but broken, substantially circular loop of chain (14) engaged by said planet wheels (19) and supported by a contractile iris structure permitting the diameter of the loop to be varied while maintaining its circularity.

Abstract: The principle of dual concentricity is described and utilized within a Dual Concentric Positively Infinitely Variable transmission; a true all-geared torque-converting positively infinitely variable transmission which utilizes a user actuated independent input control to vary the transmission output. The input control varys the orbital relationship and effective gear ratio between a driving ring gear and a driven pinion gear causing both gears to variably orbit the mechanism central axis to produce an output receiving gear and connected output shaft torque converting speed range operating between a geared neutral stopped position and its maximum output speed.

Abstract: An oscillating ratchet style continuously or infinitely variable transmission is disclosed herein, that is, one which, in its operation, relies on a plurality of different successive intermediate rotations that vary in speed and direction in accordance with their own respective oscillatory waveform, each waveform being out of phase with one another in a predetermined way. These intermediate rotations are used to convert the rotational input to a plurality of uni-directional output rotations, without the said of any over-running clutches. These later outputs vary in speed in accordance with their own respective waveforms and are used to produce a modified rotational output.

Abstract: An oscillating rachet style continuously or infinitely variable transmission is disclosed herein, that is, one which, in its operation, relies on a plurality of different successive intermediate rotations that vary in speed and direction in accordance with their own respective oscillatory waveform, each waveform being out of phase with one another in a predetermined way. These intermediate rotations are used to convert the rotational input to a plurality of uni-direction output rotations, without the aid of any over-running clutches. These later outputs vary in speed in accordance with their own respective waveforms and are used to produce a modified rotational output.

Abstract: A mechanism for providing a cycloidal output motion for an output member in a linear direction using a constant velocity rotary input motion driving an off-center input shaft and drive gear and utilizing a secondary motion to influence the position of the drive gear in relation to the output member and the acceleration and deceleration of the output member. A compact embodiment utilizes a ring gear and planetary and a reaction motion to provide the secondary input.

Abstract: A cycloidal speed reducer having a plurality of rotatable, tapered, concentric bearings each having a tapered bearing surface adapted for contact with a peripheral tapered surface of a movable member. The contacting tapered bearing and peripheral surfaces are relatively adjustable to provide contact therebetween.