Abstract:
The angular motion translator is a device with direct mechanical coupling which allows a user to reliably and durably change the angular relationship between two elements in a rotating frame (i.e. two output shafts) by changing the angular relationship between two elements in a static reference frame, whereby the change in the angular relationship of the elements in the rotating frame is proportional to the change in the angular relationship of the elements in the static reference frame. Essentially, the angular motion translator is comprised of two linked identical planetary gear sets facing one another as mirror images. Matching elements in the two planetary gear sets are held static, although one of the static elements may be rotated with respect to the other, matching elements are rigidly attached together so that they rotate as a single unit, and the remaining matching elements are attached to either the input shaft and the inner output shaft or the outer output shaft respectively.
Abstract:
A bowl mill transmission which has a high overall transmission ratio and a high output torque, is of compact construction and is simple to assemble, is equipped with a vertically arranged bevel-gear stage for power input and a multi-stage epicyclic transmission arrangement for power output into a thrust ring of the bowl mill.
Abstract:
A desmodromic mechanism having transmission elements connected to and supported by an intermediate element and a primary and a secondary cam both in permanent contact with the transmission elements. The transmission elements, the intermediate element, the primary and secondary cams are assembled to one another to compulsorily move in rotation or linearly relative to one another. The various elements are also assembled in such a way as to form sealed variable volume chambers.
Abstract:
The system includes at least two power disc elements, each mounted for rotation on a central shaft which is typically fixed. The first power disc element includes a first peripheral gear portion at the rim of the power disc element by which the first power disc element is turned. A first system gear mounted on a first system shaft mates with the first peripheral gear portion with first system shaft being offset from the central shaft. The first power disc element also has a second peripheral gear portion in the vicinity of the rim extending forwardly of the first power disc element. A second power disc element has a plurality of outer drive gears mounted for rotation to a rearwardly facing surface, positioned to mate with the second peripheral gear portion on the first power disc element. A central gear is fixed to the central shaft and mates with the outer drive gears on the second power disc element. A second system gear mates with a peripheral gear portion of the second power disc element, with the second system gear mounted on a second system shaft which is also offset from the central shaft.
Abstract:
A gear bearing having a first gear and a second gear, each having a plurality of teeth. Each gear operates on two non-parallel surfaces of the opposing gear teeth to perform both gear and bearing functions simultaneously. The gears are moving at substantially the same speed at their contact points. The gears may be roller gear bearings or phase-shifted gear bearings, and may be arranged in a planet/sun system or used as a transmission.
Abstract:
A pedal-type driving device suitable for a bicycle, including a main shaft rotatable about a central axis and a chain sprocket mounted about the main shaft for rotation therewith. There are two power transmission units mounted at opposite ends of the main shaft and each has a non-rotating first sprocket connectible to a support structure of the bicycle, a rotatable planetary second sprocket spaced radially outwardly from the first sprocket, a pedal, a crack connecting the pedal to the second sprocket, and a flexible drive member such as a timing belt extending around the first and second sprockets. The distance of each pedal from the central axis varies substantially as the pedals are moved about the central axis and this provides greater rotational torque to the shaft on the downward stroke of each pedal.
Abstract:
A hand tool with an adjustable rotational speed and torsion force includes a shaft rotatably received in a body of the hand tool and driven by a motor that is mounted in the body. A first planet gear set is longitudinally connected to one end of the shaft opposite to the motor and a second planet gear set is longitudinally connected to the first planet gear set. The shaft is longitudinally movable in the body. The hand tool only has the first planet gear set acted thereon when the shaft is pushed toward the second planet gear set. The first planet gear set and the second planet gear set are acted on the hand tool at the same time when the shaft is pulled.
Abstract:
In a gearwheel pairing, in which one of a pair of gearwheels has, at least at one side thereof a lid-shaped stop structure for engaging the other gearwheel for retaining it in engagement with the other gear wheel. The arrangement is expediently used in a differential transmission in particular a crown-wheel differential transmission.
Abstract:
A gear drive apparatus for converting a rotational input provided by a drive device, such as a wind power generator rotor, into a predetermined rotational output for driving rotation of a driven device, such as a generator, includes a large gear coupled to the drive device and a pair of output pinion shafts coupled to the driven device. A first gear level includes eight primary level pinion shafts each having gear teeth meshingly engaged with the outer circumferential gear teeth of the first large gear. The eight primary level gear or pinions are coaxially secured to the eight primary level pinion shafts for driving rotation thereof. Four secondary level gears and four secondary level pinion shafts form a secondary gear level which rotates the pair of output pinion shafts.
Abstract:
An improved planetary traction drive mechanism for use in actuating a throttle valve assembly is provided. An electric drive motor supports a cup-shaped member defining the outer ring of the mechanism. The drive shaft of the motor extends into the cup-shaped member to define a sun roller and forming an annular space between the sun roller and the outer ring. An output plate is rotatably supported on the drive shaft, and one or more deformable planetary friction rollers are disposed in radial compression between the outer ring and the sun roller are mounted on the plate. An output shaft extends from the plate and may or may not be coaxially aligned with the sun roller. The output shaft may be connected via a link to a lever arm on the throttle shaft of the throttle valve, which may be used on an internal combustion engine.