Abstract: A multi-stage transmission has driving gears m and driven gears n in constant mesh and supported for being individually engageable and disengageable with a hollow driven gear shaft. The transmission realizes a smooth speed change by providing cam rods within the driven gear shaft for engagement and disengagement between the driven gears n and the driven gear shaft and by providing compact lost motion mechanisms with axially acting springs for the cam rods, respectively. Swing pawl members each disengageably engage projections formed at circumferentially spaced positions on the inner peripheral surface of each driven gear n to control engagement and disengagement between each driven gear n and the driven gear shaft. The cam rods are moved in the driven gear shaft to operate the swing pawl members. Gear shift driving means includes a control rod moved in sliding contact with the inner surfaces of the cam rods.

Abstract: Driven gears are supported on a hollow driven gear shaft in a manner engageable with and disengageable from a hollow driven gear shaft via swing pawl members. The transmission has first a engaging member for engaging the gear shaft with a first driven gear, so as to effect synchronous rotation thereof and a second engaging member for engaging the gear shaft with a second gear, one step lower in the reduction gear ratio than the first gear, so as to effect synchronous rotation thereof. When making an upshift by changing over the engaging member from the engagement with the first gear to the engagement with the second gear, the gear shift is made by engaging the second gear with the gear shaft through the second engaging member while the first gear is being in engagement with the gear shaft through the first engaging member.

Abstract: A transmission system and method for operating the transmission system, where the transmission system includes a selector assembly arranged to select between gear ratios instantaneously without substantial power interruption. The selector assembly includes first and second sets of engagement members and an actuator system. The actuator system may have a first actuator member for moving the first set of engagement members, a second actuator member for moving the second set of engagement members, a first actuator device for actuating the first actuator member and a second actuator device for actuating the second actuator member independently of the first actuator device.

Abstract: A shift key mechanism using a lateral pivot riding on milled ridges on the outer surface of a shift shaft in order to index a spring biased shift key to a gear location.

Abstract: A control for a motor vehicle drive having an automatic transmission includes a circuit configuration for generating an output signal adapting shifting points to a load state of the motor vehicle from an evaluation of a power takeoff rpm of the transmission or of a variable equivalent to it. The circuit configuration ascertains a deviation between a calculated and a measured power takeoff rpm in successive time intervals and forms a correction term by multiplication with a factor. At least one characteristic curve memory stores shifting points of the transmission. The at least one characteristic curve memory receives the correction term as an output signal for adapting a characteristic curve to the load state. In a method for controlling a vehicle drive having an automatic transmission, shifting points or characteristic curves for shifting are varied as a function of driving parameters.

Abstract: A speed changing arrangement for the bicycle having a changing arrangement mounted on the frame of the bicycle and positioned between the left and right pedals. The speed changing arrangement generally includes: a speeding changing gear set engaging an output gear set, a gear shifting shaft and a hand lever to manipulate the gear shifting shaft. The hand lever can be utilized to manipulate a neutral gear cable and a gear shifting cable, so that the gear shifting shaft can be moved within a spacing between the speed changing gear set of the desired gear stage and the output gear set.

Abstract: A self-contained remotely actuated power take-off assembly for front mounting to an engine. A sump containing hydraulic fluid is contained within the power take-off housing to supply hydraulic fluid by a gerotor pump connected to the output shaft supplying fluid under pressure to a piston and cylinder hydraulic actuator. A friction disk clutch operatively engages a gear train between the input and output shaft when acted upon by the piston. A remotely operated solenoid valve located between the pump and hydraulic cylinder is used for such actuation.

Abstract: A ten-speed transmission which is located inside the hub of the driving wheel of a pedal powered vehicle, and which includes a pedal drive shaft mounted in bearings on the axis of the wheel, is used to provide a compact, low maintenance alternative to the chain and derailleur system used for conventional multiple speed bicycles. Three idler shafts divide the pedal torque between three gear teeth permitting the gear widths to be one third that which would be required for a transmission using a single idler shaft. The resulting narrow gears coupled with a shift arrangement which adds nothing to the transmission width, permits the width between the pedals to be approximately that of a conventional chain driven bicycle. This transmission is particularly well suited for use in recumbent front wheel drive bicycles and tricycles.

Abstract: A vehicular transmission in which a multiple speed manual transmission of the two parallel shaft type has an auxiliary transmission connected in series between the two shafts for some of the multiple speeds. The auxiliary transmission providing a high speed and a low speed. The auxiliary transmission includes gearing for providing the high or low speeds to the gears on one of the shafts. A hydraulic clutch and a one-way clutch in said auxiliary transmission selectively connect the high or low speed gearing, with the one-way clutch engaging when the hydraulic clutch is disengaged and being overrun when the hydraulic clutch is engaged.

Abstract: A two-speed drive for a fishing reel wherein a low friction clutch is interposed between the drive shaft and the high speed main drive gear. Planetary gears extend from one side of the main drive gear and are engaged by the secondary drive gear so that, in the event the low friction clutch slips, the main drive gear will be driven by the smaller secondary drive gear through orbital rotation of the planet gears.

Abstract: An auxiliary transmission unit having multiple countershafts is disclosed for use in a motor vehicle. The countershafts are disposed about an input sun gear and an output sun gear in such a manner as to provide an opening for a shift fork to reach a central shift mechanism locating the planet gears, one with respect to the other, at angular alignment positions in an unequally spaced manner. A tooth of one sun gear at an alignment position will be aligned with a tooth of the other sun gear at least once during one revolution of a countershaft. The unequal spacing of the countershafts provides reduced height for the auxiliary transmission housing.

Abstract: A gear shifting speed change apparatus for a rotary electric tool such as a drill having an electric motor driving a first pair of unequal diameter pinion gears which are in continuous driving engagement with a second pair of pinion gears. The gears of second pair are independently mounted next to each other for free rotation on a shaft having an axial keyway. An axially sliding key is manually shifted to engage either one, but not both, of the second pair of gears by means of a pair of projections extending radially outwardly from the sliding key, one projection being axially outside the outer face of each gear and engageable with a recess in the outer face of the adjacent gear.

Abstract: An auxiliary transmission is provided for a light and medium duty truck having manual transmissions. The auxiliary transmission is an electrically actuated two speed gear system to be installed between the clutch and manual transmission for providing a direct pass through of engine rpm or for providing overdrive or underdrive depending on the gear set design.

Abstract: The device is so designed as to be cheap enough to be sold in large numbers and is particularly simple, compact and has a very low power consumption. It comprises a hydrokinetic converter and a gear mechanism having two forward speeds established by means of two pairs of pinions. It is completed by two clutches and a free-wheel disposed in the converter which provide the connection with the two input elements of the mechanism. These two clutches are actuated by a single slidable plate which moves as a function of parameters such as the speed of the vehicle or the load on the engine. The two clutches are disposed on opposite sides of the plate and one clutch is connected in parallel with the free-wheel.

Abstract: In a multistage speed change gear system including a plurality of gears selectively interconnecting an input shaft and an output shaft located parallel to one another, the gears disposed concentric with the input shaft are supported by ball-and-roller bearings supported by at least one stationary member which is an entity separate from the input shaft. By this arrangement, relative movements occur between inner and outer races of the ball-and-roller bearings when a rotational force is transmitted from the input shaft to the output shaft, thereby preventing or reducing the development of fretting corrosion in the ball-and-roller bearings.

Abstract: A power transfer case for a four wheel drive land cruiser is altered to provide overdrive capability. A main drive gear is journaled for rotation about a main drive shaft driven by the vehicle transmission system. The main drive gear includes an axially extending hub section. A direct drive gear is splined onto the main drive shaft, as is an overdrive driving gear. An overdrive idler gear provides a mechanical speed advantage and is engaged with an overdrive driven gear that is journaled for rotation about the main shaft. A shift collar is splined in continuous engagement with the hub section of the main drive gear, and is longitudinally shifted to alternatively effectuate splined engagement with either a direct drive gear or with an overdrive driven gear. The vehicle is provided with four wheel overdrive drive capability without axial relocation of any of the major structural drive line supports or assemblies.