Abstract: A tractor transmission includes a pair of dual power clutches that connects an engine to an input shaft through a gearset that selectively makes a direct connection or overdrives the input shaft in accordance with the stat of the clutches. Two nonsynchronized couplers connect the input shaft in accordance with the movement of the gear shift lever by the vehicle operator to high speed and low speed forward gear ratios and to a reverse drive mechanism. Hydraulically actuated disk clutches located in the driveline between the couplers and the drive wheels are selectively operated to transmit power through a multiple speed ratio gearset. A friction clutch or torque converter transmits power from the power source to the input of the dual power clutches. A hydraulically-actuated brake holds a gear and countershaft, located between the couplers and the dual power clutches. A clutch pedal is depressed by the operator.

Abstract: An automatic shift transmission for vehicles of the type in which the shifting of speed is automatically effected with a changeover valve having an orifice installed upstream thereof and a pilot type solenoid valve installed downstream thereof.A pressure reducing valve is provided upstream of the orifice.The amount of hydraulic oil consumed through the solenoid valve is possibly reduced.

Abstract: A planetary gear transmission for use in gas turbine engines is provided which includes a gear case housing fixed to the engine housing, and a ring gear is fixed to the interior of the gear case housing in a cavity defined therein. A first stage planetary gear assembly is provided in the housing, including a first sun gear coupled to an output shaft of the engine, and a first planetary gear carrier is rotatably mounted in the housing. First planetary pinion gears are supported by the first carrier gears and mesh with the first sun gear and with the ring gear. A second stage planetary gear assembly is provided within the housing and comprises a second sun gear coupled to the first planetary carrier. The second stage planetary gear assembly includes a second planetary carrier coupled to a propeller shaft. The second carrier supports planetary pinion gears which mesh with the ring gear and the second gun gear.

Abstract: A torque limited of permanent magnet coupling type is disclosed, in which the value of transmitted torque is varied from a near zero minimum to a maximum. The torque limiter comprises a disk of magnetic material fixed to the output cylinder, and a pair of annular members disposed on both axial sides of the disk with small gaps filled with a powder of magnetic material. The annular members are rotatably supported on the output cylinder. An annular disk-shaped permanent magnet is fixed to one of the annular members at the side surface thereof opposite to the surface facing the disk. Further, an annular disk-shaped plate of magnetic material having an outer diameter greater than that of the permanent magnet is fixed on the outer side surface of the permanent magnet projecting radially from the outer circumferential surface of the permanent magnet.

Abstract: A key interlock system for an automatic floor mounted transmission shifter adapted to be used with an ignition key located in the steering column and adapted to translate a key slide actuator upon rotation of the key through a pinion acting on a gear rack on the slide actuator includes a cable assembly with a conduit fixed at one end adjacent the ignition key and at the other end adjacent the automatic floor mounted transmission shifter. A strand is connected at one end to a spring loaded pawl adjacent the actuator and at the opposite end to a shifter cam plate adjacent the shifter. In the key out position, the pawl engages the key actuator placing the strand in tension so that the shifter is prevented from movement from a park position. When the key is advanced to the start, run or off position, the pawl engages a groove in the key actuator allowing the shifter cam plate to be moved from park position to the desired drive gear position.

Abstract: A starting speed stage selector for starting a vehicle at all times from an optimum speed stage in response to load conditions of the vehicle. The selector is employed in an automatic transmission control system in which a speed of a transmission having preset speed stages is shifted up or down sequentially on a step-by-step basis in response to the load conditions. The speed stage selector selects one of the present speed stages optimum for starting the vehicle in response to the vehicle load conditions and a road surface gradient.

Abstract: The invention comprises an all gear mechanism for a continuously variable transmission that provides a wide range of output speeds and torques. The Basic element of the transmission is a floating gear assembly which relates output speed to input speed. The floating gear assembly can either comprise a floating gearbox or a floating gear arrangement incorporated into a differential assembly with idler gears. Various controlling mechanisms are shown and described which include first and second mechanical feedback loops. With these speed control systems, the output gear ratio can be made to change either linearly to geometrically to produce a desired output speed and torque.

Abstract: A centrifugally controlled two-speed accessory drive for operation of one or more automotive vehicle accessories to provide a two-stage operation depending on the engine speed, the drive including a gear box secured to the face of the accessory and having an input shaft driven by a pulley and belt from the engine, an output shaft driving the accessory, and a planetary gear set connecting the shafts. The gear set includes a sun gear connected to the output shaft, a ring gear rotatably mounted in the gear box and a planet carrier rotatable with the input shaft and mounting a plurality of planetary gears between the sun gear and ring gear. A cone clutch engages the ring gear to ground it through a Belleville spring, piston and fulcrum, and centrifugal weights act to unground the ring gear; a one-way clutch between the shafts allows the output shaft to overrun the input shaft when the ring gear is grounded and rotate the output shaft with the input shaft as a unit when the ring gear is ungrounded.

Abstract: A clutch disc having a pair of side plates connected together by a stop pin and a cushioning plate inclined in relation to one side plate. A stepped coined section is formed on a stop pin fitting part of the side plate to which the cushioning plate is fastened. The stop pin does not interfere with the press work and the outer peripheral part of the side plate can be formed into a conical shape.

Abstract: A tooth profile in a meshing mechanism is arranged in such a way that the tooth profile of a deflectable tooth row is formed by a circular-arc-shaped addendum and lines tangential to the circular arc, while the tooth profile of two second tooth rows meshing with the tooth row with that tooth profile, one of the second tooth rows being fixed and the other being moveable, are based on an envelope of the locus of movement of the circular-arc-shaped addendum, or a line approximated thereto by circular arcs and straight lines. In the meshing mechanism having this tooth profile, the deflectable tooth row and the two tooth rows mesh with each other over a wide region and a low level of angular backlash can be obtained thereby. For this reason, the contact pressure on the working surfaces of the teeth can be alleviated, and the lifetime of the teeth can be prolonged.

Abstract: A hydrostatic transmission includes a mechanically driven hydraulic pump connected in hydraulic circuit with first and second hydraulic motors. The hydrostatic outputs of the first and second motors are respectively applied to the ring and sun gears of a planetary gear set whose carrier constitutes the transmission hydrostatic output. Acceleration under low speed, high torque conditions is achieved by varying the displacements of the pump and second motor, while the first motor is removed from the hydraulic circuit and the ring gear is braked. At an appropriate shift point, the first motor is inserted into the hydraulic circuit and the ring gear is released, such that further acceleration is achieved by varying the displacements of the pump and both motors in coordination.

Abstract: A throttle follower controller for establishing a release throttle position upon the release of the throttle by the vehicle operator which is maintained at a specified value for a predetermined time if the vehicle transmission is experiencing an upshift or if an upshift will occur upon the release of the throttle to provide for a smooth upshift. Upon completion of the upshift or if no upshift will occur upon release of the throttle, a controlled transition of the throttle angle to a predetermined lower coastdown value is established to prevent drive-on while preventing a sudden harsh drive line jerk upon release of the vehicle throttle.

Abstract: A multispeed reversing transmission has a housing, an input shaft rotatable in the housing and adapted to be rotated by a drive, and an output shaft rotatable in the housing adjacent the input shaft and adapted to be connected to a load. At least one reverse gear and two different forward gears are fixed axially and rotationally on the input shaft axially spaced from one another and at least one respective reverse gear and two different respective forward gears are rotatable on the output shaft. At least one coupling member rotationally fixed but axially displaceable on the output shaft is displaceable between a reverse position operatively engaging the reversing gear of the output shaft and rotationally coupling same to the output shaft and a forward position operatively engaging at least one of the forward gears of the output shaft and rotationally coupling same to the output shaft.

Abstract: A robot joint arrangement having two joints, in which each joint is equip with an electric motor of its own and a reduction gear. To achieve a spacing as short as possible between the tilting axis (V) of the second joint and the flange surface for mounting the tool, the second joint is supported in a fork-like extension of the first joint.

Abstract: For a transport refrigeration unit having a refrigerant compressor 14 adapted to be driven alternatively by an engine 10 through belt 52, or by electric motor 12 through belt 58 has the clutch 36 mounted to the compressor 14 with both the engine 10 having a rigid pulley 38 on its output and the motor 12 having the rigid pulley 40 on its output.

Abstract: In a planetary type traction roller transmission which comprises a sun, a traction ring and planetary traction rollers disposed in the space between, and in engagement with, the traction ring and the central sun, the traction surfaces of the sun, the traction rollers and the ring members are all somewhat conical and the members are so arranged that their axes and all tangential axial lines of the traction surfaces intersect in a single point on the axis of the transmission and a device is provided for urging the sun member toward that point of intersection and between the planetary rollers for forcing the planetary rollers into engagement with the sun and the traction ring.

Abstract: Normally a first target value is given and a reduction ratio of the continuously variable transmission is adjusted in such a direction as to bring the actual value into agreement with the first target value. However, when a predetermined heavy load condition on an engine is detected, a second target value is immediately given and the reduction ratio of the continuously variable transmission is adjusted in such a direction as to bring the actual value into agreement with the second target value. Subsequently, when a deviation of the actual value from the second target value becomes less than a predetermined value, a third target value is given and the reduction ratio of the continuously variable transmission is adjusted in such a direction as to bring the actual value into agreement with the third target value.

Abstract: A countershaft transmission includes an input shaft, a countershaft, an output shaft, first and second disc type directional clutches associated with the input shaft, and disc type speed clutches associated with the countershaft and output shaft to selectively connect a plurality of constantly meshing gears in preselected patterns to provide three forward speeds and three reverse speeds for a work vehicle such as a track-type tractor. The gears and clutches are functionally arranged in a forward and reverse mechanism serially connected to a three-speed mechanism and a speed reduction ratio change can be made to the speed mechanism without effecting the speed reduction ratio of the forward and reverse mechanism. Reverse speeds greater than 20% faster than the corresponding forward speeds are possible using a three-gear train in the forward and reverse mechanism. The gears, and the directional and speed clutches are arranged to provide a radially and longitudinally compact transmission.

Abstract: A vehicular automatic transmission control system comprising: a hydraulic control circuit including a hydraulic pressure source, a pressure regulator valve for producing a line pressure by regulating the oil pressure supplied from the pressure source, a number of shift valves for selectively engaging and releasing friction members of the automatic transmission according to operating conditions of a vehicle such as vehicle speed and throttle opening rate, and a solenoid valve blocking switching operation of a highest shift gear toward a highest gear position of the transmission; and an electronic control circuit for controlling on- and off-ranges of the solenoid valve, including a manual mode switch for setting the control either in a highest speed non-cancel mode permitting shifts to the highest gear position or a highest speed cancel mode inhibiting shifts to the highest gear position and forcibly effecting a downshift when selected during operation in the highest gear position, and a vehicle speed sensor; c

Abstract: A vehicular automatic transmission control system comprising: a hydraulic control circuit including a hydraulic pressure source, a pressure regulator valve for producing a line pressure by regulating the oil pressure supplied from the pressure source, a number of shift valves for selectively engaging and releasing friction members of the automatic transmission according to operating conditions of a vehicle such as vehicle speed and throttle opening rate, and a solenoid valve blocking switching operation of a highest shift gear toward a highest gear position of the transmission; and an electronic control circuit for controlling on- and off-ranges of the solenoid valve, including a manual mode switch for setting the control either in a highest speed non-cancel mode permitting shifts to the highest gear position or a highest speed cancel mode inhibiting shifts to the highest gear position and forcibly effecting a downshift when selected during operation in the highest gear position, and a vehicle speed sensor; c