Abstract: A power transfer system for a vehicle having a power source and a driveline, the power transfer system including a power-interrupt auto-manual transmission, a hydraulic actuator and a source of stored fluid pressure into a conventional power-interrupt auto-manual transmission to provide the driveline with a secondary drive torque during a segment of the shifting cycle. Electronic throttle controls are preferably employed to regulate engine speed during the shifting cycle so as to eliminate the need for fuel interrupt schemes and to maintain a constant engine speed.

Abstract: A power transmission system includes a motor connected to a variable pulley device via a uni-directional device and an engine connected to a clutch device via a uni-directional device. A pulley device is disengagably connected to the clutch device and connected to the variable pulley device by a belt. A pulley device is connected to the variable pulley device by another belt and the pulley device is connected to a gear box. The variable pulley device includes two disks and a threaded axle connected therebetween. A movable member having two inclined surfaces is movably mounted to the threaded axle so that the two belts are separated by the movable member.

Abstract: A power transfer system for a vehicle having a power source and a driveline, the power transfer system including a power-interrupt auto-manual transmission, an electronic control unit and electronic throttle controls. In the preferred embodiment, the power transfer system includes an epicyclic gearset for providing a level of drive torque to the driveline during the shifting of the transmission so as to eliminate the undesirable sensations experienced by the vehicle operator during the shifting of the transmission. The electronic throttle controls allow the rotational speed of the engine to be maintained at a desired level while the shift is being performed so as to improve fuel economy and reduce emissions. Alternate embodiments of the present invention utilize a secondary power source powered by a source of stored energy to provide the driveline with drive torque during a shift.

Abstract: A hybrid electric powertrain system is provided including an electric motor/generator drivingly engaged with the drive shaft of a transmission. The electric is utilized for synchronizing the rotation of the drive shaft with the driven shaft during gear shift operations. In addition, a mild hybrid concept is provided which utilizes a smaller electric motor than typical hybrid powertrain systems. Because the electric motor is drivingly engaged with the drive shaft of the transmission, the electric motor/generator is driven at high speed even when the vehicle speed is low so that the electric motor/generator provides more efficient regeneration.

Abstract: A hybrid drive system for outputting the power of an internal combustion engine and the power of a motor generator through a transmission. The transmission includes an input shaft and an output shaft. The motor generator is arranged to have an input/output motor shaft in parallel with the input shaft and the output shaft. The internal combustion engine is arranged to have its output crankshaft on the same axis as that of the input shaft.

Abstract: A driven axle assembly for vehicles has an axle housing with a main drive, wheel hub units fixed to both sides of the axle housing and being driven by a drive shaft with different rotational movements on both sides of the main drive, within each wheel hub unit, a planetary gearing and a multi-plate friction type wet brake both being coupled to the drive shaft as well as to a drive unit of the vehicle, wherein the multi-plate friction type wet brake is arranged within a ring gear support member, and around planetary gears of the planetary gearing a ring gear is connected to them.The improvement achieved by this invention is that a driving assembly is coupled to the ring gear of the planetary gearing of each and every wheel hub unit arranged on the driven axle whereas a difference between the rotational speeds of the ring gear within the wheel hub units, respectively, are proportional to a difference between the rotational speeds of the wheel hub units arranged on the driven axle of the vehicle.

Abstract: A hybrid powertrain for an automotive vehicle comprising an internal combustion engine and transmission assembly providing a first selectably shiftable geared torque flow path to vehicle traction wheels and an electric motor-generator unit defining a second geared torque flow path that is located between the output of the first geared torque flow path and the traction wheels. Through the deployment of an appropriate control system, including the necessary control algorithms, the electric motor-generator unit can be operated to supply torque to the traction wheels while the torque flow in the first torque flow path is interrupted during the occurrence of a ratio change in the transmission assembly and during disengagement of a clutch. Because of this interactive control of two power sources, the vehicle driveability can be enhanced along with an improvement of the engine exhaust gas emissions.

Abstract: A hybrid vehicle is powered by a drive system including an internal combustion engine, a generator and an electric motor. A differential gear unit includes at least three elements, the first connecting to the generator, the second connecting to a first gear and the third connecting the internal combustion engine. A second gear is connected to the output shaft of the electric motor. A counter shaft carries a third gear meshing with the first and second gears and connects to the differential gear unit. The internal combustion engine, differential gear unit and generator are aligned on a first axis, the electric motor is aligned on a second axis parallel to the first axis, the counter shaft is aligned on a third axis parallel to the first and second axes, the differential gear unit is aligned on a fourth axis parallel to the first, second and third axes, and the third axis is disposed inside of a triangle defined by the first, second and fourth axes when viewed on end.

Abstract: A motor drive system is provided with two drive units so that the system may be driven not only by operating one of the drive units but by simultaneously operating both of the drive units in accordance with load condition. Both of the first and second drive units are provided with a motor and a gear reduction mechanism. The output gear of the second drive unit is mounted as a planetary gear of a planetary gear mechanism on the carrier. When the current is supplied simultaneously to both the motor of the first drive unit and to the motor of the second drive unit, the output gear of the first drive unit comes into mesh with the output gear of the second drive unit, combining the output forces of the first and second drive units to drive the load driving shaft.

Abstract: An electro-mechanical actuator has two motors which normally operate at the same speed and combine (sum) to move a load via a rotary actuator output member. If the motors begin to operate at different speeds, this indicates that the system has failed, and the output member is automatically decoupled from the remainder of the actuator. This leaves the output member free to rotate relative to the remainder of the actuator. The speeds of the motors are monitored by a differential mechanism which produces a rotary output proportional to the average of the two motor speeds. This average is normally the same as the speed of the output member. Decoupling of the output member occurs when this average deviates from the output member speed.

Abstract: A helicopter transmission presenting at least a first reduction unit receiving motion from a respective engine on the helicopter; and a second reduction unit connected to the first reduction unit and transmitting motion to the shaft of the main rotor; both reduction units presenting one reduction stage, and each including a pair of face gears coaxial with and facing each other and only one of which is fitted to the output shaft of the respective reduction unit; and two pinions of which one is a floating input pinion and the other is a fixed-axis pinion, and each of which meshes with both the face gears.

Abstract: A plurality of rotating bodies each consisting of an armature, a permanent magnet rotor, or the like are rotatably supported in parallel and rotary shafts thereof are gear-connected to each other so that they may be interlockingly rotatable. Between the mutually nearest positions between respective outer peripheries of the adjacent rotating bodies and inner wall surfaces of the relevant yoke on first- or second-, half rotation sides of the rotating bodies as viewed in the rotation direction, partitioning walls are disposed so as to block the passage of the magnetisms between the adjacent rotating bodies while, on the other hand, opening portions are secured on the other rotation sides thereof as viewed in the rotation direction so as not to block the passage of the magnetisms between the adjacent rotating bodies, whereby forces of magnetic attraction or repulsion act to promote the interlocking rotations of the rotating bodies.

Abstract: The present invention is an electrically actuated disc stack for drives, brakes and combinations thereof having minimized residual magnetism. Residual magnetism is minimized by the following features being provided, singly or in combination, in a drive, brake or combination thereof. 1) A non-magnetic material is located between the clutch armature plate and the clutch electromagnetic coil assembly, and a non-magnetic material is located between the brake armature plate and the brake electromagnetic coil assembly. The non-magnetic material serves as a spacer to add reluctance to the magnetic circuit and may be for example a wafer for instance composed of aluminum or stainless steel or may be a coating. 2) A driver circuit for energizing the primary and secondary electromagnetic coils, wherein the self-induced EMF produced when current is shut-off is rapidly dissipated. 3) Non-magnetic drive components are used in the path of the magnetic circuit of the clutch and brake electromagnetic coil assemblies.

Abstract: An electro-mechanical hybrid powertrain uses the electric motor during engine starting. A planetary gear arrangement is disposed in torque transmitting relation between the prime mover, the electric motor and the transmission output. A pair of brake members, which are self-engaging, are provided to establish reaction members in the planetary gear arrangement during engine starting. A fluid-operated piston selectively enforces disengagement of the brakes after the engine has started.

Abstract: A multi-functional energy saving power transmission mechanism has a plurality of miniature motors assembled together into a motor assembly, a down-speed gear set and an output gear set. More than one down-speed gear set can be arranged in sequence for further reducing the speed of the motor assembly and generate a larger torque output. Each down-speed gear set has a gear mounting block with a main central driving shaft. One end of the shaft has a spur gear or an annular gear and the other end has a spur gear. The gear mounting block also has a plurality of gear mounting holes disposed around the central driving shaft. A plurality of minor driving shafts can be selectively engaged with the gear mounting holes so as to make the driving connection between the down-speed gear sets or to the output gear set in a smoother manner.

Abstract: A redundant engine starting system is disclosed that includes at least first and second sub-starters that rotate corresponding sub-starter output shafts affixed by a joining gear to rotate an engine starter shaft to start the engine. Each sub-starter includes a speed sensor for detecting rotational speed of the sub-starter, and a control valve to control rotational speed of the sub-starter. A system control intelligence interprets sensed rotational speeds of the sub-starters and commands the control valves, so that the control valve of an operative sub-starter is commanded to allow increased rotational speed of the sub-starter and therefore its corresponding output shaft whenever the system control intelligence interprets the sensed rotational speed of an inoperative sub-starter.

Abstract: A main internal combustion engine powers a motor vehicle at 55 MPH. A smaller auxiliary engine powers the vehicle at slower speed. Both engines power at the same time for passing, hill climbing, etc. Either engine can be shut down (or idled) while the other engine powers. Thus, the engines operate more closely to best efficiency and this shall result in reduced fuel consumption (as calculated herein) and less air pollution.In a first species, the main engine transmits shaft power through a standard friction clutch and then to an ordinary transaxle consisting of torque converter, automatic transmission and differential. The auxiliary engine is mounted next to the transmission. Power from the smaller engine passes through an overrunning clutch and then by toothed belt and sprockets to the torque converter.A second species is identical to the first except an over running clutch takes the place of the friction clutch.

Abstract: The invention relates to a hydrostatic drive, preferably for an earth-moving vehicle, such as a wheel loader, comprising two reciprocating-piston rotary motors of the inclined-axis or inclined-disk type. The reciprocating-piston rotary motors have an angle of inclination which are adapted to be controlled to decrease toward zero as the torque decreases and the velocity increases, and which each is coupled to an input shaft of a shiftable transmission. The shiftable transmission comprises two input shafts, which are coupled to two reciprocating-piston rotary motors, and each input shaft is adapted to be coupled to a common output shaft by means of one of at least two shiftable gear stages.

Abstract: A pre-assembled disc stack having a predetermined cross-section within a preset tolerance which is installable and removable as a unit with respect to a drive, brake or a combination thereof, composed of a plurality of annular discs stacked in a prearranged order, in which a first set of annular discs is structured for engaging a first component of a drive, brake or combination thereof, and in which a second set of annular discs is structured for engaging a second component of the clutch, brake or combination thereof which is rotatably mounted with respect to the first component. The first and second sets of annular discs are mutually connected together as a unit by a plurality of alignment pins which pass through circumferentially disposed alignment holes in the second set of annular discs which effectively trap the first set of annular discs with respect to the second set of annular discs in the aforesaid prearranged order.

Abstract: A multifunction secondary power system (10) for use aboard an aircraft or other vehicle provides the functions both of an auxiliary power unit and of an emergency power unit. The power system (10) includes two turbine engines (12, 22) operable under differing conditions, a gearbox (34) receiving power from the two engines (12, 22) selectively through overrunning clutches (74,84), and a plurality of accessory devices (36, 38, 40) receiving shaft power from either of the two engines (12, 22) through the gearbox (34). The gear box (34) includes a third clutch (64) operably interposed between the clutches (74, 84) which selectively delivers shaft power from the engine (22) to the engine (12) to affect the start thereof.

Abstract: The present invention relates to a three-shaft gearbox particularly for industrial vehicles in general, which comprises an input shaft which is associable with a power unit and selectively interacts with a first countershaft or with a second countershaft. The first countershaft rigidly rotationally supports odd-numbered speed gears, whereas the second countershaft rigidly rotationally supports even-numbered speed gears. The first countershaft and the second countershaft are mutually disconnected. The even-numbered speed gears and the odd-numbered speed gears mesh with respective output gears, which are supported by an output shaft and can be selectively rigidly rotationally associated with the output shaft.

Abstract: An electric motor drive-type power steering system includes a steering gear, a first motor constantly connected to the steering gear for supplying thereto a steering assist force, and a second motor connectable to the steering gear by way of an electromagnetic clutch for selectively supplying a steering assist force to the steering gear in addition to the steering assist force by the first motor. The first and second motors and the electromagnetic clutch are controlled so that both of the first and second motors are put into action when the vehicle speed is lower than a predetermined value and only the first motor is put into action when the vehicle speed is higher than the above mentioned predetermined value. The first motor is of a smaller maximum output type as compared with the second motor.

Abstract: A gear drive including an input gear having alternative first and second positions and which is selectively locatable at one of the first and second positions. The input gear includes a circumferential surface having a preselected first plurality of teeth when the input gear is located at the first position and a preselected second plurality of teeth larger than the first plurality of teeth when the input gear is located at the second position. A power source is connected to the input gear for rotating the input gear at a first rotational speed when the power source is connected to the input gear at the first position and at a slower second rotational speed when the power source is connected to the input gear at the second position. Output gears engage the input gear for receiving circumferential drive from the input gear which is at substantially the same velocity with the input gear located at both the first and second positions.

Abstract: There is provided a two-speed drive unit for a motor drive, the motor drive having a housing and a main rotatable member. The two-speed drive unit comprises a two-speed drive housing secured to the motor drive housing and a secondary motor secured to the two-speed drive housing. The driveshaft of the secondary motor extends into the two-speed drive housing. The two-speed drive unit further comprises a gear train operably associated with both the secondary motor driveshaft and a clutch, the clutch being disposed between the gear train and the rotatable member of the main motor drive for engagement and disengagement of the gear train with the rotatable member of the main motor drive. The clutch is normally engaged by a plurality of coil springs and disengaged by the action of an AC voltage coil. Control means are provided which are capable of storing predetermined positions of the motor drive at which engagement or disengagement of the two-speed drive is desired.

Abstract: A device for the rapid precision positioning of a heavy carriage employs stationary positioning bar, for instance a part of a linear electric motor or a gear rack, and a cooperating moving part of the linear motor or a motor attached to the carriage. The carriage is rapidly and roughly displaced with a further drive which may be constituted by a further gear wheel that cooperates with a gear rack and is driven by a separate motor attached to the carriage. This further drive additionally delivers a certain force for the final positioning in such a way that the play between the gear wheel and the gear rack is eliminated by biasing. Instead of a second gear wheel together with its motor a toothed belt, also driven by a separate motor, a pneumatic cylinder or a linear motor may be used. These are mounted separately from the carriage and ar principally fixed in space.

Abstract: A powered wheelchair 50 comprises a frame 52 and two independently rotatable drive wheels 54 and 56 mounted to the frame 12. Two motors 62 and 64 are coupled via coupler 70 to the drive wheel 54 such that the motors 62 and 64 drive the drive wheel 54 in different speed ranges. Two motors 66 and 68 are coupled via coupler 80 to drive the drive wheel 56 such that the motors 66 and 68 drive the drive wheel 56 in different speed ranges. Various control systems, including a microprocessor based control system 190, may be employed to control the motors 62, 64, 66, and 68.

Abstract: A two-speed drive utilizing an electromagnetically operated control system wired with respective drive motors, automatically braked in the event of a loss of power, provided with pre-assembled clutch and brake disc stacks, and provided with a manual over-ride. A primary drive motor is connected at one end to an external drive shaft and at an opposite end to a primary clutch drive shaft. The primary clutch drive shaft is connected with a first set of discs of an oil shear clutch disk stack. A secondary clutch drive shaft is connected with a second set of discs of the clutch disk stack. The clutch disc stack is biased by springs to be in a normally clamped mode which is released by a clutch electromagnetic coil assembly. The secondary clutch drive shaft is connected by a gear reducer to a shaft which is connected at one end to a secondary drive motor, and at the other end to a first set of discs of an oil shear brake disk stack. A second set of discs of the brake disk stack is connected to a housing component.

Abstract: A turntable for selectively accommodating different types of workpieces in which the system is designed for combining two turntables into one for handling two different workpieces which are rotated by two different motors. Preferably, one of the motors is connected to one of the tables for rotating the table continuously at a slow speed for treating large parts. The turntable is adapted to be selectively arranged for a second motor to drive a second table at incremental positions so as to index smaller parts for treatment. One drive shaft of the two motors is located within the other drive shaft which is hollow.

Abstract: A two speed drive for an apparatus which uses DC electrically actuated oil shear brake/clutch units is disclosed. The two speed drive directly connects the output to a first input for high speed movement using a DC voltage coil to actuate the clutch/brake for low speed operation. The output is connected to a second input through a gearing system using another DC voltage coil to actuate the clutch/brake. The DC voltage coils provide a repeatable and variable acceleration curve for exact operation of the drive.

Abstract: In a hybrid propulsion system for vehicles in which a first propulsion unit, of internal combustion type, transmits motion to at least one wheel of the vehicle via transmission members including at least one clutch, a second propulsion unit, of electrical type, is connected to the driven element of said clutch via means such that the motion generated by one of said propulsion units when the other is deactivated is transmitted only to the transmission members located downstream of said clutch.

Abstract: A gear arrangement for an offset transmission includes two concentric, counter-rotating face gears in meshing engagement with an engine output shaft, the face gears being connected to respective concentric, vertical counter rotating face gear shafts of unequal length, each shaft ending in a helical spur gear that is in meshing engagement with an output helical face gear. The helical output face gear is connected to the output shaft, thereby completing the offset transmission. The face gear shafts can be coupled together by means of thrust bearings that couple the axial thrusts of one shaft to the other in an opposite direction. The shafts can also be coupled via a preload spring that ensures the torque split between the pinion gears is statically determinant. The gear arrangement can be applied to twin engine designs, with a spur gear train coupling the two engines together via an interconnect shaft.

Abstract: An electrical actuation system for a drive utilizing one or more disc stacks having annular discs alternately connected with two or more drive components. A disc stack is directly selectively clamped by an armature of an armature assembly being magnetically attracted to an electromagnetic coil of an electromagnetic coil assembly upon energization of an excitation current in the electromagnetic coil. The armature has a zero air gap with respect to the electromagnetic coil when the disc stack is clamped. A plurality of armature springs are carried with the armature assembly and are compressed when the armature assembly biases against the disc stack, thereby accommodating wear of the discs. Clamping of the disc stack results in the two drive components connected therewith being interconnected. Upon the excitation current being switched off, the disc stack is no longer clamped and the two drive components are now unconnected.

Abstract: A multiple fail operational rotary actuator comprising a static base, at least two serially connected rotary motor stages, a power source, and braking devices. The rotary motor stages are connected by anti-friction bearing assemblies. A first stage is connected to the static base while a final stage is connected to an output shaft of the rotary actuator. The power source provides power for the rotary motor stages. The braking devices are connected to the rotary motor stages for preventing relative motion between any failed motor stage and the adjacent motor stage ahead of that failed stage.

Abstract: This invention relates generally to robots and specifically to a robot for spraying applications which has the ability to accurately follow trajectories that require high speeds and accelerations, a working envelope appropriate for processing the sides, top, and bottom of a large object such as an aircraft, an integrated revolute joint and actuator for supplying power to the movable components of the robot along protected, low maintenance power paths, a zero backlash drive, and a gravity compensating system which causes the robot to be neutrally balanced throughout its entire working envelope even while carrying a payload of significant weight.

Abstract: An auxiliary driving device being attached to a primary driving device of a rolling door and including a gear engaged with a gear wheel of the primary driving device, a motor having an axle, a lower disc with a pinion slidably engaged on the axle, a spring biasing the pinion and the lower disc upward, an upper disc disposed above the lower disc, three balls engaged in the recesses formed in the discs, the pinion moves downward to engage with the gear when the first motor is energized so that the spindle can be driven to rotate by the motor.

Abstract: An elastomeric torsional isolator comprises one or more elastomer layers disposed between a spur gear, having a pair of sloped surfaces, and a pair of rims having corresponding surfaces. The rims are attached to a flange extending from a shaft which has pinions for engaging a driven gear. By preloading the elastomer layers, the spur gear is frictionally connected to the flange and shaft, rather than mechanically engaged. The preloaded elastomer layers act as an elastomeric torsional isolator which accommodates variations in mechanical tolerances to balance the torque loading in a split torque drive system. Using elastomer layers for balancing the torque loading between a pair of torque splitting gear assemblies reduces the number of bearings required, increasing reliability and reducing part complexity.

Abstract: A twin engine helicopter has an accessory drive system that will operate with only one engine while the other engine is off. The system also allows starting of the second engine without turning the first engine off. An input clutch for the first engine will rotate an inner drive member when it is being driven by the first engine. An accessory drive member mounts to the inner drive member. A collector gear mounts in engagement with the blade drive train and has a drive member. A movable clutch shaft has one end that engages the inner drive member of the input clutch and another end which will engage the drive member of the collector gear. An actuator will move the clutch shaft out of engagement with the drive member of the collector gear to disengage the drive engine from the blade drive train. A synchronizing clutch mounts in engagement with the clutch shaft for causing the clutch shaft to rotate with the collector gear if the second engine is started and operated at a speed faster than the first engine.

Abstract: For breaking out a drill rod joint, a hydraulic chuck is mounted by a housing for clampingly engaging a drill rod and for rotation to break a rod joint, the chuck being rotated by a first gear that is bolted to a drive tube which mounts the chuck. A hydraulic motor drives a second gear within the housing for rotating the first gear. A rack is mounted for tangential movement by a rack mount which is movable radially inwardly to move the rack teeth for engaging the first gear teeth while a first spring mechanism constantly resiliently urges the rack mount to a retracted position so that the rack teeth are not engagable with the gear teeth even though the rack is tangentially moved by a first hydraulic ram that is operable for moving the rack to a tangential advance position. A second spring mechanism urges the rack radially outwardly, a second ram being operated to radially move the rack mount and thereby the rack to have the rack teeth engagable with the gear teeth.

Abstract: A disk chipper for the production of wood chips, consisting of a rotatable chipping disk supported on an axle driven by at least one drive machine. The disk chipper of the invention is so implemented that at least three motors are drivably coupled to the axle of the chipping disk by means of a gear assembly, preferably a spur gear assembly.

Abstract: An step-up gear unit is adapted for realization of an automotive internal combustion engine simulated driving power supply in use with motor such as an electric motor, a hydraulic motor and so forth. The step-up gear unit is connected to at least two motors for selectively outputting driving torque of sole motor and combined torque of both motors for wider capacity range of capacity of engine to simulate. The gear train of the step-up gear is so composed to selectively connect and disconnect the motors to an output gear for selective output of the driving torque.

Abstract: A drive mechanism is redundantly equipped with two electric motors so that the second motor can take over the drive function if the first motor should fail, for example for moving equipment in or on a spacecraft. Both electric motors are connected to a common drive shaft. A coupling device makes sure that the defective motor is decoupled from the drive train.

Abstract: Apparatus is described for use in a vehicle having a forward motion transmission operatively connected between an engine and the output shaft connecting the drive wheel and a reverse drive mechanism arranged to be operatively connected to the output shaft for driving the vehicle in reverse. A speed change shift device is arranged to operate the forward motion transmission and the reverse drive mechanism so as to prevent simultaneous operation of the two apparatus.

Abstract: A motor-operated, direct-pressure type mold clamping apparatus is capable of high-speed mold closing and opening operations and of producing a required mold clamping force, without the use of a large-sized motor. In the mold opening and closing operations, a ball screw, in engagement with a ball nut which is movable in one with a moving platen, is rotated at high speed by a motor through gears and a clutch, so that a die is opened and closed at high speed. In a mold clamping operation, the ball screw is driven with a large rotatory force transmitted through a clutch and gears which, having a high reduction ratio, serve to increase the rotatory force of the motor. Thus, dies are clamped with a large clamping force.

Abstract: An engine, particularly for ultralight aircraft, comprises an engine block carrying at least one pair of autonomous drive units with respective driving shafts connected independently to a common output shaft by means of respective one-way transmission units arranged to couple the output shaft and the driving shafts for rotation only when the respective drive units are in the operating condition.

Abstract: A motor-operated, direct-pressure type mold clamping mechanism capable of high-speed mold closing and opening operations and of producing a required mold clamping force, without the use of a large-sized motor. In the mold opening and closing operations, a ball screw, in engagement with a ball nut which is movable in unison with a moving platen, is rotated at high speed by a coarse-adjustment motor through gears, so that a die is opened and closed at high speed. In the mold clamping operation, the ball screw is driven by a fine-adjustment motor through a clutch and gears which, having a high reduction ratio, serve to enhance the rotatory force and provide greater clamping force.

Abstract: The vehicle and drive mechanism includes a vehicle frame having at least one steerable wheel carried thereon, an axle mounted on the frame and at least one driven wheel mounted on the axle. First and second ratcheted gears drivingly disposed on the axle to produce rotary motion of the axle when each gear is rotated in a first direction and coast relative to the axle when rotated in a second, opposite direction; an oscillating handle/footrest assembly operable to provide a driving force for the driven wheel and to provide braking action on a wheel.

Abstract: A power transmission, particularly adapted for motorcycle application, in which a first planetary gear reduction system reduces power output from the starter motor for starting the engine and a second planetary gear reduction system operated in cooperation with the first system enables power output from the starter motor to operate the vehicle in reverse.

Abstract: Motors (42,44) each have a pinion driving ring gear (62). Motor (42) is mounted on the platform and motor (44) is mounted on ring gear carrier (56). Rotation of either motor rotates carrier (56), hubs (40) and shaft (30).

Abstract: A mechanical transmission comprises first and second speed reduction gears arranged above each other and a shaft operated by the gears, the shaft supporting at a free end a pulley coaxially rotatable therewith. A first articulated coupling is axially slidable on the shaft between the gears and is provided with a lower and upper toothing. The upper toothing engages with a first flanged sleeve rotatably connected to the first reduction gear and the lower toothing is connected to a second flanged sleeve rotatably connected to the second reduction gear, and axially slidable within a seat thereof.

Abstract: A dual engine drive system for a single propeller shaft includes a single torque-combining gearbox separated from the engines by gearbox input shafts. The engines, gearbox and propeller shaft are mounted as a unit on a common support frame adapted for installation in existing fixed-wing, single-engine aircraft. Each input shaft drives its own primary gear train within the gearbox. Each gear train includes its own output gear coupled to the propeller shaft through an overrunning clutch. An auxiliary drive train driven by the propeller shaft drives redundant propeller governors, an overspeed governor, and an oil pump for lubricating the propeller shaft and auxiliary gear train. The primary gear trains also drive oil pumps for lubricating their own gearbox sections. The three oil pumps are in separate subcircuits of a common oil circuit, and a mechanism is provided for enabling an operating oil pump of one subcircuit to supply oil to another subcircuit if the oil pump in such other circuit fails.