Abstract: A hydraulic control system comprises first and second shift valves which cooperate with each other to effect a shift between two gear ratios. The first shift valve has a port and two different pressure acting areas which are exposed to pressure from the port depending upon downshift and upshift states of the first shift valve, respectively. The second shift valve effects communication between signal pressure generating means and the port of the first shift valve when the second shift valve is in one of two states to deliver the signal pressure to the port of the first shift valve.

Abstract: A transmission apparatus for a motor vehicle having an internal combustion engine transversely disposed in the vehicle at an end portion thereof, a transmission transversely disposed and connected to the crankshaft of the engine at one end portion of the transmission, a final reduction gear engaged with an output gear of the transmission, the output gear being mounted on an output shaft of the transmission adjacent an end of the engine, a differential secured to a side of the final reduction gear, and an axle connected to the differential for one pair of the vehicle wheels. A transfer device is connected to another portion of the output shaft of the transmission. The transfer device comprises a transfer shaft, a gear train provided at the other end portion of the transmission, and a clutch device for engaging the gear train with the output shaft of the transmission.

Abstract: The invention is apparatus for switching operating ranges for an air actuated governor for an engine for a vehicle. The governor establishes a maximum rpm for the engine when air under pressure is supplied to the governor and a lower maximum rpm for the engine when the supply of air to the governor is interrupted. The lower rpm range of the governor is engaged when the transmission of the vehicle is in a preselected gear.

Abstract: A four wheel drive torque transfer mechanism with a hydraulic control system is switchable between two wheel drive and four wheel drive during running of a vehicle having an automatic transmission.When a two wheel drive mode of operation is selected, the hydraulic control system automatically actuates the torque transfer mechanism to provide a four wheel drive operation if a governor output responsive to vehicle speed, falls below a predetermined level, and to provide a two wheel drive operation if a governor output exceeds the predetermined level.

Abstract: A power tool, is adapted to be driven by an external drive means such as a portable, hand held drill, through a novel gear reduction arrangement in which a selected pinion gear and an idler gear are supported between a gear case cover and the tool frame. The gear reduction arrangement provides for a gear case cover having a support position for a pinion and a plurality of support positions for the idler gear. The idler gear support positions are placed at varying distances from the pinion gear position to accommodate pinion gears of various sizes and numbers of teeth, thereby to permit the tool to be operated at a plurality of gear reduction ratios.