Abstract: A gear box in which there is provided an input shaft, a coaxial relatively rotatable output shaft, a lay shaft carrying a gear meshing with one on the output shaft, meshing gears carried on the lay shaft and on the input shaft, synchronizers on the lay shaft and input shaft for selectively connecting the gears thereon, all forward gear speeds being synchronized, and the gears for each speed arranged sequentially from an input and to an output end of the gear box.

Abstract: A power branching transmission, having two parallel output shafts, each of which carries a rotationally rigidly connected ouptput drive pinion, the output drive pinions being axially offset with respect to one another and each meshing with a respective rotatable ring gear and with a respective central gear wheel disposed in the respective ring gear, a pair of driving pinions rotationally rigidly disposed on parallel drive shafts and each meshing with a respective one of the ring gears and a respective one of the central gear wheels, each of the ring gears and each of the central gear wheels having at least one coaxial race with at least one supporting roller disposed between the races and bracing the respective ring gear and associated central wheel with respect to one another. No housing is required, tooth forces of the ring gears and central gears being accommodated by the supporting rollers and not transmitted to the radial bearings of the input end output shafts.

Abstract: When the accelerator pedal is fully depressed, shifting points at which the automatic power transmission shifts to another gear ratio are suddenly moved toward the higher vehicle speed to readily achieve the downshift of the transmission even during a relatively high vehicle speed. The downshifts are continued until the magnitude of the throttle pressure which is substantially proportional to the output of the engine is decreased to a predetermined level even when the accelerator pedal is permitted to return to its partially depressed position.

Abstract: This transmission has a first planetary gear assembly having first input means connected to an input shaft, first output means, and first reaction means, and a second planetary gear assembly having second input means connected to the first input means, second output means, and second reaction means connected directly to the first reaction means by a reaction shaft. First clutch means, when engaged, connect the first output means to an output shaft in a high driving range. A hydrodynamic drive is used; for example, a torque converter, which may or may not have a stationary case, has a pump connected to the second output means, a stator grounded by an overrunning clutch to the case, and a turbine connected to an output member, and may be used in a starting phase. Alternatively, a fluid coupling or other type of hydrodynamic drive may be used. Second clutch means, when engaged, for connecting the output member to the output shaft in a low driving range.

Abstract: Improved change speed gearing utilizing an improved blocker means for effecting engagement of the jaw clutch associated with the low speed gearing of a simple transmission, or with the low speed gearing of the main transmission section of a splitter type compound transmission. A transmission having an input shaft driven by a one-way prime mover, a main shaft and at least one countershaft, and including pairs of shiftable gears arranged on and cooperatively between said shafts, is provided with positive clutches, preferably spring loaded jaw clutches, for effecting connection to one of said shafts of a selected one gear of a selected one of said pairs of said gears upon the achievement of substantial synchronization between such gear and such shaft. Blockers are provided for protecting the positive clutch teeth from excessive wear during such shifting.

Abstract: Electromotively driven drive unit with a planetary gearing having bevel-gear toothing and including a revolving planet gear having an inclined axis intersecting with the axis of a central gear of the planetary gearing, and a gear box for the planetary gearing having a plurality of journal shafts to which tools and devices drivable with varying rotary speeds are connectible, the improvement therein includes an internally toothed outer ring gear disposed concentrically to the central gear of the planetary gearing, the planet gear being in meshing engagement both with the teeth of the central gear and the teeth of the ring gear, the planet gear with a pin formed thereon being seated in a bearing member rotatably disposed on the axis of the central gear, the planet gear moving together with the bearing member during a whirling movement thereof about the central gear.

Abstract: A control system to change gear ratio in an automatic transmission through friction elements engaged by hydraulic pressure. A closed loop electrical circuit is completed between a transducer, which provides an electrical signal related to the output torque of the transmission, and a pair of control valves, to vary the pressure applied to a friction element by each control valve. A circuit for computing reaction torque is coupled between the transducer and a logic control circuit, which provides logic command signals for controlling operation of components in the closed loop circuit. The system computes an output torque ramp when a downshift is called for by the shift point computer and uses controllers which react oppositely to control engagement of a clutch and brake in response to error signals of torque output compared to a desired ramp to produce a proper shift.

Abstract: A differential mechanism including a plurality of driving plate members with radiating teeth, the driving plate members all being located for rotation about a common axis and their teeth having inclined flanks so that slip can take place, accompanied by relative axial movements between the members, to allow the required differential movements.

Abstract: A two-speed transmission unit which couples a rotatable input shaft to a rotatable output shaft. A gear unit includes a sun gear fixed to the input shaft and rotatable therewith. One or more planet gears are disposed for orbital motion around the sun gear, and the planet gears are carried by a planet carrier which orbits with the planet gears about the sun gear. First clutch means is provided for coupling the sun gear to the output shaft for rotating the output shaft at a first angular velocity equal to the angular velocity of the sun gear, and second clutch means is provided for coupling the planet carrier to the output shaft for rotating the output shaft at a second angular velocity equal to the angular velocity of the planet carrier about the sun gear.

Abstract: A transmission having a plurality of gear ratios which are selectively engaged on the supply of fluid to a servo motor fluid chamber and controls. The controls have a source of fluid under regulated pressure selectively connected by a relay valve respectively in a first and a second position to a first and a second servo motor to provide a first and a second ratio drive, an automatic shift valve controlled by speed and torque demand for shift movement between a first and a second position having spaced lands slidably sealed in a bore and a smaller intermediate restricting portion providing a restricted passage between the bore and restricting portion operative in the first position to restrictively connect the actuator chamber of the relay valve so the relay valve is in first position and in the second position to restrictively connect said source to the actuator chamber of the relay valve to shift the relay valve to second position.

Abstract: A signal failure circuit for incorporation in a control circuit of vehicle automatic transmission system of the type having a generator which produces a fluctuating signal, comprises an interval timer including a comparator and a capacitor, the latter being charged by means of a charging circuit and discharged by means of a transistor which is rendered conductive by pulses of a pulse train derived from said fluctuating signal. When said pulses cease the comparator provides an output to a monostable circuit which thereby switches to its unstable state to activate safety circuits associated with the transmission system. The monostable circuit will remain in its unstable state for a predetermined time after the return of the pulses of the pulse train. The charging circuit of the capacitor is conveniently controlled by a further transistor the conduction of which is dependent upon the output voltage of an a.c.-d.c. converter which also receives said train of pulses.

Abstract: Improvement in a hydraulic type automatic transmission including a fluid torque converter and a plurality of friction-engagement devices associated with hydraulic servo devices in which different speed change ratios including a plurality of forward movement steps can be realized by selectively actuating the friction-engagement devices with a hydraulic pressure either automatically or manually. Upon deceleration from a higher speed gear ratio to a predetermined gear ratio, a friction-engagement device for realizing the predetermined gear ratio is quickly engaged without delay, whereas upon acceleration from a lower speed gear ratio or a neutral condition to the predetermined gear ratio, engagement of the friction engagement device is effected slowly by actuating an accumulator and a flow rate limiter and thereby generation of an excessive shock is prevented.

Abstract: An infinitely adjustable variator which includes a drive shaft having mounted thereon first and second plane disks with the first plane disk being operatively connected with an idling coupling or regulable appliance for controlling the movement thereof. The second of the plane disks serves as a counterweight for the first plane disk. A third plane disk is provided for adjusting the position of the first and second plane disks. A pair of slots spaced from each other by 180.degree. are provided in the third plane disk for receiving cams provided on the first and second plane disks. An eccentric bore is provided in the first and second plane disks for receiving disk members fixedly mounted to the drive shaft. The third plane disk is connected to a box-shaped body which in turn is connected to a shiftable sleeve concentrically mounted with respect to the drive shaft. Actuating devices are operatively connected with the sleeve for selectively shifting the same.

Abstract: An engine and transmission control system provides for one lever control through a first device of engine speed and direction of output shaft rotation. A second control lever is provided to control a transmission and modulated clutch in the transmission. The second control lever, positionable by the operator at intermediate positions provides for clutch slippage during maneuver operations of an engine driven water craft so that the operator of the water craft may devote more attention to maneuvering. A second embodiment provides the same modulated clutch features for dual station control.

Abstract: A planetary overdrive gear mechanism for an automatic transmission utilizing a double-acting one-way clutch with means to immobilize the cage for the one-way clutch with the rollers in an intermediate position whereby the inner and outer races are free to rotate relative to one another and a brake mechanism for the inner race of the clutch which is integral with the sun gear whereby with the brake applied and the one-way clutch neutralized, an overdrive ratio is established through the mechanism, and with the brake released and the cage control released, a two-way direct drive is established through the mechanism.

Abstract: A differential gear mechanism for vehicles includes an axle shaft, a case rotated by the driving force from an engine, a pinion shaft perpendicularly intersecting the rotational axis of the case and fixed thereto, at least one pair of pinion gears rotatably supported upon the pinion shaft and supported by the case, a pair of side gears disposed within the case and enmeshed with the pair of pinion gears at both sides thereof for transmitting the driving force to the axle shaft, and a pair of pressure plates disposed exteriorly of the pair of side gears and slidably engaged with an inner peripheral face of the case at an outer peripheral face thereof. The pressure plates also support the pair of side gears and have a cam portion which is formed by end portions which extended inwardly of the case from the pair of pressure plates and from the outsides of the pair of side gears.

Abstract: A multispeed gear transmission having an internal gear driving an output shaft. The internal gear is in constant mesh with a plurality of drive pinions. Each drive pinion is connected to a fluid actuated clutch. The driving members of the clutches are driven by respective gears in constant mesh with each other or with a common input gear. Auxiliary output shafts may be driven by a gear meshed with the internal gear or by one of the drive pinions.

Abstract: A power transmission usable with a vehicle and having three ranges or speeds of operation in both forward and reverse directions of travel of the vehicle, including a low-speed range, an intermediate-speed work range, and a high-speed range and having a planetary differential with a sun gear drivingly connected to the motor of the hydrostatic transmission, a ring gear drivable either by the power input shaft or the hydrostatic transmission and a third intermediate planetary gear system connected to the output shaft with selectively operable clutches and gear trains related with the other structure of the power transmission for utilization in a drop box configuration and optional connection to multiple hydrostatic transmission pumps and motors.

Abstract: An opposed piston engine includes pistons mounted at opposite ends of a piston rod which is pivotally coupled to one end of a rocker arm coupling the piston rod to a connecting rod in turn coupled to an eccentric drive mechanism. The rocker arm is pivotally coupled to the engine block by pivot means permitting necessary lineal movement of the rocker arm during operation. Counterbalance arms are pivotally coupled to the engine block at one end and include weighted portions positioned to provide counterbalancing for the opposed pistons. Pivot means couple the rocker arm and the counterbalance arms for providing the desired relative motion between these elements. A hollow drive shaft is coupled to the eccentric drive mechanism and a transmission shaft extends through the drive shaft to permit positioning of a clutch at one end of the engine and the transmission at the other.

Abstract: A geared differential of the limited slip type wherein spring or bias means, exerting a predetermined force, are interposed between the outer ends of the side gears and adjacent portion of the differential carrier housing for urging each side gear in a direction opposite to the direction of the axial force applied to the side gear, via the planetary gear, thereby normally tending to urge the clutch friction discs into disengagement as long as the predetermined force is greater than the axial force, thereby permitting a high differential bias under heavy drawbar conditions and a relatively low bias under light drawbar conditions.