A transmission having engagement mechanisms which employ an engagement inner having cam surfaces forming the race thereof, an engagement outer having a circular outer race and rollers therebetween. A cage mechanism angularly positions the rollers such that they may be wedged between the cam surfaces and the outer race so as to interlock the engagement inner and outer. Actuator mechanisms are employed which are axially movable to engage and angularly position the cages relative to the engagement ...

A vehicle transmission has two shafts parallel to one another. At least one of the shafts is formed of two partial shafts which are in alignment and axially spaced apart. A torsion shaft then connects the two for rotation with each other, but prevents transmission of bending moments between the partial shafts. This structure is particularly useful in a hydrostatic-mechanical power distributing transmission, in which the torsion shaft is radially aligned with the planetary gearsets of the power d...

A vehicular transmission having two planetary gear sets, three brakes and three clutches combined to provide three forward speed range drives and one reverse speed range drive with an extremely high-speed reduction ratio in the lowest forward speed range drive.

Power is transmitted by a planetary and hydraulic assembly which has one input shaft, two output means, and two reactions. While one output means is increasing its speed, the other output means is simultaneously decreasing its speed, and the ratio of the maximum speed of one output means to its minimum speed is substantially the same as the ratio of the maximum speed of the other output means to its minimum speed. This characteristic of speeding up one output means while the other slows down is ...

A transmission having a hydrostatic propulsion drive unit combined with planetary gearing to provide in both forward and reverse a full hydrostatic drive in a low-speed range and two different hydromechanical drives in successively higher speed ranges with synchronous drive-establishing device shifting, the transmission with dual output also having a separate hydrostatic steer drive unit combined with the gearing to provide steering. The invention herein described was made in the course of work ...

A toroidal friction roller-type transmission including a housing, input and output shafts rotatably mounted therein, input and output toroidal-shaped races secured to the input and output shafts, respectively, a plurality of rollers frictionally mounted between the races, a ring-type support member maintained in a nonrotating position in the housing, a ratio collar rotatably mounted in a track formed in the inside surface of the ring member, a plurality of cam grooves formed on an angle in the r...

A transmission having a hydrostatic propulsion drive unit combined with range planetary gearing to provide in both forward and reverse a full hydrostatic drive in a low speed range and five hydromechanical drives in successively higher speed ranges with synchronous drive establishing device shifting, the transmission with dual output also having a separate hydrostatic steer drive unit combined with the gearing to provide steering.

A transmission comprising an outer hollow stationary casing having first and second open ends, an outer surface and a cylindrical inner surface. The inner surface has a circumferentially extending, uniformly shaped first zigzag groove. A first hollow cylindrical member is rotatably mounted coaxially within the casing and has an axially aligned output shaft which extends outwardly from the second end of the casing. The cylindrical member has a plurality of transversely extending parallel slots ex...

A multi-speed transmission has particular usefulness in bicycles, completely eliminating the use of the commonly used derailleur and the exposed flexible cable and the readjustment problems inherent with that prior structure. The transmission includes separate concentric gear rings which to a certain extent operate independently of each other. A shift mechanism for shifting the transmission is such the transmission can not be shifted from one gear to a non-adjacent gear without stopping at a gea...

A transmission having engagement mechanisms which employ an engagement inner having cam surfaces forming the race thereof, an engagement outer having a circular outer race and rollers therebetween. A cage mechanism angularly positions the rollers such that they may be wedged between the cam surfaces and the outer race so as to interlock the engagement inner and outer. Actuator mechanisms are employed which are axially movable to engage and angularly position the cages relative to the engagement ...