Abstract: An orbital tensile drive is herein disclosed, along with systems and methods associated therewith. The orbital tensile drive uses a tensile element that is conveyed around a static, fixed shaft and a rotating output shaft. This is facilitated via multiple orbiting idler pulleys that are mounted to an orbiter body. The static and rotating shafts, as well as the orbiting assembly, share a common axis. Input rotation to the orbiter body is transformed into lower-speed, higher-torque rotation at the rotating output shaft. The present invention has many potential applications including, but not limited to, robotics.

Abstract: The present disclosure related to an effort-saving crank structure (1) of a bicycle (8), which includes: a crank mechanism (10) having a crank (11), a shaft end gear (12) and a treadle end gear (13) disposed on the crank (11); a transmission mechanism (20) disposed in the crank (11) and having a rotation shaft (21) and a first gear (22) and a second gear (23) connected to the rotation shaft (21), the first gear (22) and the shaft end gear (12) are engaged for transmission, and the second gear (23) and the treadle end gear (13) are engaged for transmission; a rotation arm unit (30) having a first rotation arm (31) and a second rotation arm (32), two ends of the second rotation arm (32) are respectively connected to the first rotation arm (31) and the treadle end gear (13).

Abstract: Described herein are conveyor systems and application units which can be used to transport and simultaneously treat, or to facilitate treatment and inspection of produce, agricultural products, or other items. The conveyor systems and application units can be configured to allow products to be simultaneously rotated as they are moved along a packing line, which can facilitate the uniform application of spray coatings and/or allow the products to be uniformly blow dried while they are moved. Exemplary conveyor systems and application units can include a bed formed of a plurality of rollers and a rotation inducing device that causes the rollers to rotate while they are laterally transported, thereby causing the products lying on top of the bed to rotate during transport.

Abstract: Disclosed is a gear including an input shaft; an output shaft an outer wheel; an inner wheel positioned concentrically in relation to the outer wheel; a pressure means extending between the outer wheel and the inner wheel; and at least one revolving transmitter configured to push the pressure means away from the inner periphery of the outer wheel and push the pressure means onto the outer periphery the inner wheel.

Abstract: A bicycle drivetrain including a first shaft and a second shaft which rotate in opposing directions, a first pedal connected to a first pedal crank connected to the first shaft and a second pedal connected to a second pedal crank connected to a second shaft, an engaged first spur gear and second spur gear attached to the first shaft and the second shaft, respectively, a first slip clutch mounted to the first shaft and connected to a main sprocket and a second slip clutch mounted to the second shaft, a first sprocket and a second sprocket having the same direction of rotation and attached to the first slip clutch and the second slip clutch, respectively, a rear sprocket attached to a rear wheel and connected to the main sprocket, and a plurality of mechanical stops which prevent unwanted rotation of the bicycle drivetrain.

Abstract: A belt wave drive transmission system and method are shown involving a first rotor (10) having a first drum configured to rotate about its axis of rotation and a second rotor (20) having a second drum configured to rotate about its axis of rotation, where the first rotor (10) is constrained to orbit concentrically about the axis of rotation of the second drum. A belt (30) encircles the first and second drums to couple the first (10) and second (20) rotors such that the first rotor (10) moves concentrically around the second rotor (20) as the belt (30) advances about a circumference of the second drum. In further refinements, the system and method involve electrically controllably coupling at least one of the first and second rotors to the belt.

Abstract: A drive force distributing device includes first and second rollers rotatable jointly with main a drive wheel system and a subordinate drive wheel system, respectively. Control of the drive force distribution between the main drive wheels and the subordinate drive wheels is performed by adjusting an inter-roller pressing force. A structural body suppresses turning of one of the first and second rollers at a predetermined position. A reference position setting mechanism turns either one of the first and second rollers to turn in one direction, detects a position at which the turn is suppressed by the structural body, and sets a reference position based on the detected position. A turning amount of one of the first and second rollers is detected with respect to the reference position set by the reference position setting mechanism and the control of drive force distributing is performed based on the detected turning amount.

Abstract: The application discloses a harmonic pin drive which comprises at least one outer ring gear with inner teeth that are adapted to the shape of pins of a pin ring, a transmitter for connecting to a rotor of an electric motor, a ball bearing that is supported on the transmitter and an arrangement of flexible means. The flexible means are distributed essentially on the circumference of a radius and the flexible means are provided for attachment to a casing. Furthermore, the flexible means comprise openings for inserting pins of the pin ring. Furthermore, an output shaft is provided for receiving a rotation of the outer ring gear.

Abstract: A command inverter for at least one bicycle gearshift control device. The inverter has a first interface with an electronic gearshifting control unit that includes a first plurality of electrical terminations; and, a second interface that includes a second plurality of electrical terminations; wherein at least one electrical termination of the first interface is not electrically connected to an electrical termination of the second interface.

Abstract: An assembly of two independent transmission systems is provided, including a drive system and an output system. The systems are connected by a shaft which transfers a torque from the drive system to a side gear rotating around a fixed gear and forming by this rotating motion a torque on a support. Also, through the shaft, the rotating and orbital motion of the support may be transferred to the drive system thus conditioning the motion of both systems.

Abstract: A track drive includes a primary driven gear configured to attach to a vehicle hub plate and an annular gear having gear teeth on in inner circumference and an outer circumference. The track drive can also include a plurality of intermediate gears disposed between the primary driven gear and the inner circumference of the annular gear, and a plurality of track drive wheels having an integrated gear configured to mate with gear teeth on the outer circumference of the annular gear. The track drive can further include a continuous track configured to be driven by the plurality of track drive wheels.

Abstract: A planetary belt transmission has a motor drive having a motor drive shaft, a distributing pulley attached to the motor drive shaft and a collecting pulley attached to an output shaft. Two or more distributing belts are coupled to the distributing pulley and two or more collecting belts are coupled to the collecting pulley from mutually opposite radial directions. Four or more transmitting pulleys are arranged in two or more concentric pairs around the distributing pulley and the collecting pulley and are coupled to the distributing pulley and the collecting pulley via the distributing belts and the collecting belts, respectively. Two or more peripheral shafts support the transmitting pulleys, while allowing movement in a radial direction only relative to the output shaft and being preloaded so as to apply a net zero radial force on the distributing pulleys and the collecting pulleys in a plane perpendicular to respective axes thereof.

Abstract: An energy generation apparatus uses centrifugal force to generate energy in a controlled manner. The apparatus includes a dual function input shaft and output shaft rotatably attached to opposite sides of a housing defining an axis of orbit, an output gear fixed upon the output shaft, an input sprocket rotatably mounted on the output shaft, and at least two frame gear assemblies, each having a frame gear and at least two weight gears. The frame gears rotate about their centres and also orbit around the output gear in response to an input from the input sprocket.

Abstract: A planetary belt transmission has a motor drive having a motor drive shaft, a distributing pulley attached to the motor drive shaft and a collecting pulley attached to an output shaft. Two or more distributing belts are coupled to the distributing pulley and two or more collecting belts are coupled to the collecting pulley from mutually opposite radial directions. Four or more transmitting pulleys are arranged in two or more concentric pairs around the distributing pulley and the collecting pulley and are coupled to the distributing pulley and the collecting pulley via the distributing belts and the collecting belts, respectively. Two or more peripheral shafts support the transmitting pulleys, while allowing movement in a radial direction only relative to the output shaft and being preloaded so as to apply a net zero radial force on the distributing pulleys and the collecting pulleys in a plane perpendicular to respective axes thereof.

Abstract: A variable transmission comprises a main shift part and a shift mechanism. The main shift part comprises at least an inner gear ring (B) with variable tooth-number which is connected with the shift mechanism. Said inner gear ring (B) is composed of a number of teeth and a pair of tapered discs (7,8) which are coaxially with said gear ring and the teeth are inter-connected to form a curled rack (3). The two side surfaces of the inner gear ring (B) are closely contacted with the facing walls of the two tapered discs (7,8), therefore the inner gear ring (B) is maintained as a circular ring. The end of the rack (3) is connected to the shift mechanism, and the inner gear ring (B) is engaged with a main planetary gear train disposed coaxially. The transmission ratio of the main planetary gear train varies with the change of the tooth-number of the inner gear ring (B).

Abstract: A robot joint driving apparatus is smoothly operated without generation of backlash. A robot includes the robot joint driving apparatus. The robot joint driving apparatus includes an internal gear having a ring shape, a main pulley arranged at the center of the internal gear and connected to a power source, first and second pinion gears provided at both sides of the main pulley and engaged with the internal gear, first and second pulleys respectively fastened to the first and second pinion gears, first and second belts respectively connecting the main pulley and the first and second pulleys, and tension adjustment units to adjust tensions of the first and second belts.

Abstract: Embodiments provide for planetary gearing systems with ring gears comprising cylindrical tooth forms arrayed from a central axis and encompassing at least one planetary sprocket and a sun gear. The sun and ring gears have cylindrical tooth forms. The planetary sprocket teeth are aligned for engagement with at least one of the sun gear and ring gear cylindrical tooth forms at a contact radius from the central axis selected as a function of the sprocket tooth common involute gear shape, the sprocket radius, the sprocket tooth pitch, and of the pitch, gear radius and cylindrical form diameter of the selected at least one gear cylindrical tooth forms.

Abstract: A belt planetary transmission comprising a sun gear (1) having sun gear teeth (11), a ring gear (3) having ring gear teeth (31), a first toothed belt (4) trained between a first idler (50 and a second idler (51), the first idler and the second idler rotationally connected to a carrier (2), the first toothed belt (4) in simultaneous meshing contact with the ring gear teeth and the sun gear teeth, a second toothed belt (40) trained between a third idler (401) and a fourth idler (402), the third idler and the fourth idler rotationally connected to the carrier, the second toothed belt in simultaneous meshing contact with the ring gear teeth and the sun gear teeth, each of the first idler, second idler, third idler and fourth idler having a center of rotation disposed at a radius (R) from a center of rotation (A-A), and the first toothed belt and the second toothed belt are each in continuous meshing contact with the ring gear teeth and the sun gear teeth through an angle (?) of approximately 90°.

Abstract: This invention relates to a transmission system for transmitting a driving force from a driving unit D to a driven unit F, a transmission adjustment system for adjusting the transmission system to obtain a continuous shift ratio, a guide cone system for maintaining a concentric circle of a rotation radius when a transmission element such as a chain is rotated, a guide cone/transmission adjustment system and a continuously variable transmission system which are made by combination of the above systems. The transmission system includes the transmission element with a tooth portion for transmitting the driving force from the driving unit D to the driven unit F. A transmission adjustment method in the transmission adjustment system is varied depending upon rotation or stop of a carrier. The guide cone system includes a guide cone having a portion of which comes in contact with the transmission element is formed in a shape of a cone having a constant slope.

Abstract: Described is a planetary harmonic differential transmission, comprised of a rigid externally-toothed inner sprocket, a rigid internally-toothed outer sprocket, a deformable belt that is toothed on both its internal and external faces, and a set of free-rotating planetary sprockets that are mounted on a rotating carrier cage and cause the belt to progressively engage and disengage from successive portions of the rigid sprockets. The input to the transmission is the relative motion between the carrier cage and the inner sprocket, and the output is the relative motion between the outer sprocket and the inner sprocket, resulting in a differential transmission.

Abstract: This invention relates to a transmission system for transmitting a driving force from a driving unit D to a driven unit F, a transmission adjustment system for adjusting the transmission system to obtain a continuous shift ratio, a guide cone system for maintaining a concentric circle of a rotation radius when a transmission element such as a chain is rotated, a guide cone/transmission adjustment system and a continuously variable transmission system which are made by combination of the above systems. The transmission system includes the transmission element with a tooth portion for transmitting the driving force from the driving unit D to the driven unit F. A transmission adjustment method in the transmission adjustment system is varied depending upon rotation or stop of a carrier. The guide cone system includes a guide cone having a portion of which comes in contact with the transmission element is formed in a shape of a cone having a constant slope.

Abstract: A transmission system for a vehicle with an electric motor includes a continuously variable transmission having a drive pulley, a driven pulley connected to one wheel of the vehicle, and a belt operatively connected between the drive pulley and the driven pulley such that a pitch radius of the belt in contact with each pulley is variable. The transmission system further includes a planetary gear set having a sun gear connected to the output of the motor, a ring gear connected to the drive pulley, and a planet gear operatively connected between the sun gear and the ring gear. The planet gear is rotatable about a respective planet gear axis which is fixed in position relative to the sun gear axis such that the planetary gear set is arranged to be operable at a fixed gear reduction.

Abstract: A multi ratio drive including a first drive chain having a first drive chain engaged state and a first drive chain disengaged state; and a second drive chain having a second drive chain engaged state and a second drive chain disengaged state. The first drive chain drives the axle with a first gear ratio between the drive shaft and the axle when the first drive chain is in the first drive chain engaged state and the second drive chain is in the second drive chain disengaged state; the second drive chain drives the axle with a second gear ratio between the drive shaft and the axle when the second drive chain is in the second drive chain engaged state and the first drive chain is in the first drive chain disengaged state; and the first gear ratio is different from the second gear ratio.

Abstract: A transmission for an engine or motor with a reduced package size and increased efficiency comprising: an input sprocket, an output sprocket, a chain, and a planetary gear set. The output sprocket is drivingly connecting to the input sprocket through the chain. The output sprocket has a hollow center portion that receives the sun gear of the planetary gear set. The planetary gear set also includes at least two planet gears meshed with the sun gear which are mounted to a fixed planet carrier for driving a differential with a ring gear portion. When the input sprocket is rotated in a first direction, the chain drives the output sprocket and the sun gear in the first direction, and the sun gear drives the planet gears to rotate in a second direction, opposite the first direction, driving the ring gear portion and differential in the second direction.

Abstract: Embodiments provide for planetary gearing systems with ring gears comprising cylindrical tooth forms arrayed from a central axis and encompassing at least one planetary sprocket and a sun gear. The sun and ring gears have cylindrical tooth forms. The planetary sprocket teeth are aligned for engagement with at least one of the sun gear and ring gear cylindrical tooth forms at a contact radius from the central axis selected as a function of the sprocket tooth common involute gear shape, the sprocket radius, the sprocket tooth pitch, and of the pitch, gear radius and cylindrical form diameter of the selected at least one gear cylindrical tooth forms.

Abstract: This invention relates to a transmission system for transmitting a driving force from a driving unit D to a driven unit F, a transmission adjustment system for adjusting the transmission system to obtain a continuous shift ratio, a guide cone system for maintaining a concentric circle of a rotation radius when a transmission element such as a chain is rotated, a guide cone/transmission adjustment system and a continuously variable transmission system which are made by combination of the above systems. The transmission system includes the transmission element with a tooth portion for transmitting the driving force from the driving unit D to the driven unit F. A transmission adjustment method in the transmission adjustment system is varied depending upon rotation or stop of a carrier. The guide cone system includes a guide cone having a portion of which comes in contact with the transmission element is formed in a shape of a cone having a constant slope.

Abstract: The invention relates to an infinitely variable transmission comprising a support body, peripheral gears mounted on the support body or on elements that are coupled thereto such that the rotating shafts thereof are oriented parallel to each other. The distances between the rotational shafts of the peripheral gears can be adjusted to always be located on the outer surface of an (imaginary) cylinder; at least one row of elements which surround the peripheral gears and with which at least one of the peripheral gears engages; a rotational body, preferably coaxial to the axis of rotation of the (imaginary) cylinder, whose rotary movement is coupled to the rotary movement of the peripheral gears. The rotational coupling between the peripheral gears and the (central) rotational body is effected by means of one or more differentials, so that an asynchronous rotation of the peripheral gears is possible.

Abstract: This invention relates to a transmission system for transmitting a driving force from a driving unit D to a driven unit F, a transmission adjustment system for adjusting the transmission system to obtain a continuous shift ratio, a guide cone system for maintaining a concentric circle of a rotation radius when a transmission element such as a chain is rotated, a guide cone/transmission adjustment system and a continuously variable transmission system which are made by combination of the above systems. The transmission system includes the transmission element with a tooth portion for transmitting the driving force from the driving unit D to the driven unit F. A transmission adjustment method in the transmission adjustment system is varied depending upon rotation or stop of a carrier. The guide cone system includes a guide cone having a portion of which comes in contact with the transmission element is formed in a shape of a cone having a constant slope.

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 bicycle transmission assembly that is mountable to a bottom bracket shell of a bicycle frame. The bicycle transmission generally includes an input crank assembly, an output chainring, a planetary gear mechanism, a control system and a mounting system. The output chainring engages a bicycle drive chain that includes a plurality of chain links. The planetary gear mechanism includes a ring gear and provides a plurality of transmission paths. The planetary gear mechanism is mounted coaxially about the shell axis. The control system is operatively connected to the planetary gear mechanism for selecting one of the plurality of transmission paths. The mounting system mounts the planetary gear mechanism and the control system to the bottom bracket shell. At least one chain link overlaps the ring gear as viewed along the shell axis. The at least one chain link engages the output chainring.

Abstract: This transmission (24 and 26) operates by use of a drive shaft (18 and 20), that by being extendible and retractable, can vary in length. Gears on each end of the drive shaft deliver power from one of a number of concentric rings of gear teeth on a pedal gear (12) to a similar arrangement on a wheel gear (14). The pinion gear (16), at the end of each drive shaft half, by moving between these concentric rings, can vary the gear ratios of the power delivered. A cam mechanism (40) is employed to change the length of the drive shaft and especially, guide the lift of the drive shaft pinion gear off of the one ring gear as it disengages and the setting it down to engage the next of the concentric ring gears. A separate, but synchronized cam mechanism (42) is also used to hold the pinion and ring gears in mesh, and to release the pinion gear during changing. An alternative method to the use of a cam, that performs the same function using a track (60) and a trolley (62) is also described.

Abstract: The invention relates to an infinitely variable transmission comprising a support body, several peripheral gears which are mounted on the support body or on elements that are mechanically coupled thereto in such a way that the rotating shafts thereof are oriented parallel to each other.

Abstract: A bicycle crank speed change sprocket module includes a fixed star gear having a ratchet around its internal periphery, at least two planet gears and two chains pivotally coupled and axially disposed on both sides of a plate, and the plate is driven to rotate by a crank pedal, and the fixed star gear is engaged to the ratchets on the internal periphery of the planet gear and acted by the planet gear for a faster rotation; a freewheel sprocket freely and rotably coupled to the axle of the crank pedal and disposed proximate to the two chain wheels; and a ratchet disposed on the external periphery of the freewheel sprocket, a chain wound thereon, and the chain is engaged by at lest one chain gear, so that the rotary speed of the chain is much faster than that of the crank pedal for a speed change effect.

Abstract: A gear mechanism or motor includes a shaft, and output rotary bodies which are in engagement therewith. The bodies interact with the shaft in the radial direction, by bearing against the shaft, and interact in the axial direction of the shaft with an upper guideway body which can move in the axial direction and is loaded toward the bodies. An interaction region of the shaft has a circular cross section. A guideway of the guideway body is structured in terms of its height over its periphery.

Abstract: An eccentric reduction gear for a vehicle window winder system has a ring gear, a planet pinion that is eccentric relative to the ring gear, a drive component that drives the planet pinion and the ring gear so that they roll relative to each other, and a winding drum attached to the planet pinion. A transmission component is wound around the winding drum and drives a vehicle window. The reduction gear provides a high reduction ratio in a small space and also ensures that the movement cannot be reversed.

Abstract: A belt-type door opening and closing drive apparatus is provided, which can reduce the noise and dimensions thereof and make full use of the mechanical safety function in the event of an accident. The belt-type door opening and closing drive apparatus allows the output of a motor unit to drive a belt (timing belt), thereby opening and closing the door of an elevator cage or the like. Between the motor unit and the timing belt, interposed are planetary roller mechanisms for transmitting power by the mutual rotation of sun rollers, a plurality of planetary rollers supported rotatably by carriers and circumscribing the sun rollers, and ring rollers inscribed by the planetary rollers. The planetary roller mechanism receives the output from the motor unit and the output from the planetary roller mechanism is transmitted to the timing belt.

Abstract: In order to guide supply or construction elements through a harmonic drive (8) in a central manner, said harmonic drive is embodied in a hollow gear. The harmonic drive directly provides a given correcting translatory variable which is defined by the speed of rotation of the output ring and motor driven harmonic generator when the output ring axially displaces a threaded rod (26) which freely extends in a coaxial manner through a longitudinal bore in the harmonic drive and engages with said output ring, said axial displacement occurring as a result of the rotational movement of the inner thread of the output ring, whereby the threaded rod is secured to the housing and prevented from rotating (29, 30). The threaded rod can move in a linear manner in relation to the gear motor (13) when the gear motor is installed in a stationary manner or when the treaded rod is installed in a stationary manner.

Abstract: A belt drive differential with an output shaft, two planet sprockets rotatably mounted to a carrier to orbit in a circular path about a carrier axis coaxial with the output shaft, a first output sprocket attached to the output shaft, a second output sprocket coaxial with the output shaft, and a toothed power transmission belt connecting the sprockets.

Abstract: A transmission includes a ring member, a sun member, a number of planetary sheaves and a serpentine drive member which wraps around the sun member, and the planetary sheaves. The planetary sheaves are attached to a planet carrier at a distance from the sun member. When the serpentine drive member is wrapped around the sun member and the planetary sheaves, the serpentine drive member forms a C-shape. The transmission can be used in a device that has an input shaft that must be rotated at a first speed and an output shaft that must be rotated at a second speed. The transmission can even be used as a reverser. The serpentine drive member can be any type of drive member, including a timing belt with teeth, a flat belt, a cable chain, or a link chain.

Abstract: A latching apparatus is provided for a bearing assembly in which at least three bearing rollers, each of which is supported in a rotating fashion on a bearing journal, are arranged rotationally symmetrical and lying in one plane and guide and support a bearing race between them. The bearing journals are arranged on a carrier device that is in turn supported in a rotating fashion on a central axle aligned with the axis of rotation of the bearing race, so that the bearing race and the carrier device can rotate at different RPMs. Such a bearing assembly on a rotating carrier is especially well-suited for a centrifuge, in which a separation chamber with a centrally secured line is to be driven in such a way that the tube does not become twisted.

Abstract: A differential assembly in which a belt links gears on opposite sides of a carrier via idlers, which idlers are spaced to have synchronous interfittment of the belt teeth with the gear teeth and peripherally shaped to turn the belt flat for gear engagement with a minimum arc of partial engagement.

Abstract: A toothed wheel with a variable number of teeth has a toothed ring formed by a driving chain or belt. The referenced diameter of the toothed wheel can be modified by adding or removing individual links by means of an auxiliary toothed wheel; so as to modify the length of the drive chain. At least one transmission member cooperates with the toothed wheel to insure the transmission of energy. The auxiliary toothed wheel is displaced together with the lateral guide of the driving chain, so that its radial spacing from the axis of rotation changes synchronically with the radial spacing change of the lateral guide of the driving chain.

Abstract: A power driven personal walker for the infirm and handicapped comprising laterally spaced uprights for grasping by a user in a walking position, a horizontal base frame supporting the uprights in use position rearwardly open to the legs and feet of the user and having a transverse front portion, a wheel assembly, and means to drive the wheels including a motor coupled to said axle means in wheel driving relation.

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: A mechanic drive apparatus includes a driving shaft and a hollow rotatable housing which has a rear side mounted on one end of the driving shaft. An output shaft extends into the rotatable housing and is mounted rotatably thereto. The output shaft is aligned axially with the driving shaft. A driven gear is mounted fixedly on the output shaft and is disposed inside the rotatable housing. A pair of driven transmission shafts are disposed on opposite edges of the driven gear. Each of the driven transmission shafts is provided with a worm segment that extends into the rotatable housing and that meshes with the driven gear. A pair of intermediate shafts are mounted rotatably to the rotatable housing in a direction which is transverse to the output shaft. A small bevel gear is mounted fixedly on each of the intermediate shafts. A pair of belt drive units transmit the rotating force of the intermediate shafts to the driven transmission shafts.

Abstract: A gear reducing device which includes a housing, an input drive system characterized by an input shaft having one end projecting from one end of the housing and the opposite end rotatably terminating in one end of an output shaft, a spur and pinion gear mounted on the input shaft, a pair of input spur gears seated in oppositely-disposed relationship on the spur and pinion gear and carrying corresponding auxiliary spur gears, a disc rotatably mounted on the output shaft and receiving the input spur gears and auxiliary spur gears, and an output shaft spur gear keyed to the output shaft and rotatably engaging each of the auxiliary spur gears. The input spur gears and auxiliary spur gears are rotatably seated in pairs on separate spur gear shafts which are press-fitted in spaced relationship along a first diameter of the disc.

Abstract: A combination chain and gear reducing device which includes a housing, an input drive system characterized by an input shaft having one end projecting from one end of the housing and the opposite end rotatably terminating in one end of an output shaft, a spur and pinion gear mounted on the input shaft, a pair of spur gears in oppositely-disposed relationship on the spur and pinion gear and carrying corresponding auxiliary spur gears, a disc rotatably mounted on the output shaft and receiving the spur gears and auxiliary spur gears, and an output shaft spur gear keyed to the output shaft and rotatably engaging each of the auxiliary spur gears. The spur gears and auxiliary spur gears are rotatably seated in pairs on separate spur gear shafts which are press-fitted in spaced relationship along a first diameter of the disc.

Abstract: A linear wave gear drive has a car with oppsoite walls on which pluralities of apertures carrying reciprocating roller assemblies are arrayed. The car is located between inwardly-facing cam surfaces on a track and a belt housing outwardly-facing cam surfaces is passed through the car, with the assemblies contacting facing ones of the surfaces to move the car linearly in response to lineal movement through the car of the belt. The assemblies preferably have three rollers contrally mounted in axially-spaced locations for free, independent rotation about common shaft pins. The apertures are shaped to accommodate the pins in orientations perpendicular to the directions of movement of the belt and car, and parallel to the apertured car sides. Upper and lower rollers have identical larger diameters than central rollers to capture the belt edge in order to inhibit axial displacement of the pins. Assemblies are eliminated from a usual "one more" or "one less" wave gear construction to provide a stronger car.

Abstract: An epicyclic assembly to transmit torque and motion between externally connectable members using cylindrical elements maintained in rolling contact by surrounding rings and helical coils, the latter being in continuous helical paths. The rings and helical coils provide an effectively cylindrical inner surface of a diameter determined by the diameters of the cylindrical elements within it. Axial pressure exerted on the rings is redirected inwardly by angled surfaces of the rings to cause the helical coils to contract radially onto the cylindrical elements.

Abstract: A device for transforming motion, and in particular a speed reduction gear, comprises a first stage comprising two moving members (50, 60) at least one of which is functionally coupled to a shaft (74) generating a rotary motion; a second stage comprising at least one set of two pulleys (54, 54) constrained to rotate together, and co-operating with respective transmission means, for example two endless drive strands (52, 64) which co-operate with the moving members of the first stage; and a moving support (26) which supports the two pulleys of the second stage to rotate freely and which is displaced over an imposed trajectory, thereby generating a second motion, with the first motion being a high speed motion and the second motion being a slow motion.