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  2. Corvair Powerglide - Wikipedia

    en.wikipedia.org/wiki/Corvair_Powerglide

    A small concentric shaft inside the turbine shaft operated the front pump of the transmission to permit engagement of drive/reverse ranges when the car was stopped or moving slowly; at speeds over 15 mph (24 km/h), a differential-driven (from the car motion) rear pump of smaller capacity and greater efficiency took over and the front pump shut ...

  3. Parking pawl - Wikipedia

    en.wikipedia.org/wiki/Parking_pawl

    The main components of a parking pawl mechanism are the parking gear, parking pawl, actuator rod, cam collar, cam plate, pivot pin, and parking pawl return spring. The mechanism assembly is designed so that the parking pawl tooth collides and overrides the parking gear teeth (ratchets) until a safe engagement speed for the vehicle is reached.

  4. Powerglide - Wikipedia

    en.wikipedia.org/wiki/Powerglide

    2-speed automatic The Powerglide is a two-speed automatic transmission designed by General Motors . It was available primarily on Chevrolet from January 1950 [ 1 ] through 1973, although some Pontiac models also used this automatic transmission after the fire at the Hydra-Matic factory in 1953.

  5. Dog (engineering) - Wikipedia

    en.wikipedia.org/wiki/Dog_(engineering)

    In engineering, a dog is a tool or part of a tool, such as a pawl, that prevents or imparts movement through physical engagement. [1] It may hold another object in place by blocking it, clamping it, or otherwise obstructing its movement.

  6. Reversing gear - Wikipedia

    en.wikipedia.org/wiki/Reversing_gear

    When the steam valve is at “stop”, an oil cock connecting the two ends of the locking piston is also closed, thus holding the mechanism in position. The piston rod connects by levers to the reversing gear, which operates in the usual way, according to the type of valve gear in use. The Ragonnet power reverser

  7. Preselector gearbox - Wikipedia

    en.wikipedia.org/wiki/Preselector_gearbox

    Preselector gearboxes were most common prior to the widespread adoption of the automatic transmission, so they were considered in comparison to the "crash gearbox" type of manual transmission. Preselector gearboxes were often marketed as "self-changing" gearboxes, [ 1 ] however this is an inaccurate description as the driver is required to ...