Abstract: A power steering, comprising: a pump driven from an engine; a flow control valve for regularizing the discharge rate of the pump varying in response to the rotational speed of the engine; a power cylinder; a distribution control valve for distributing a regularized fluid pressure from the flow control valve to opposite fluid chambers of the power cylinder; a sector gear meshed with a rack formed on the piston of the power cylinder and rotatable by operation of the power cylinder; a sector shaft having the sector gear formed integrally therewith and displaceable in the axial direction for adjusting the preload on the meshed rack and sector gear; a preload control cylinder for axially displacing the sector shaft, the preload control cylinder including a piston connected to the sector shaft and having different pressure receiving areas on the axially opposite ends thereof; a first fluid passage for conducting part of the pressurized fluid being sent from the pump to said flow control valve, to one of fluid chamb

Abstract: The ultra light chair is designed for greater stability, higher performance, higher efficiency and overall better appearance than conventional chairs. A seat frame is provided separate from the main frame with seat mountings permitting longitudinal, tilt and height adjustments of the seat on the main frame. Unique wheel mountings permit simple manual removal and attachment of the wheels to the main frame, using only one hand. The same wheel mountings permit adjustment of the camber angle of each wheel relative to a vertical plane so that propelling and maneuvering of the wheelchair can be made easier than in the absence of any camber. The seat back for the chair is designed to fold down over the seat frame so that this feature in combination with easy removal of the wheels provides for compact storage during travel.

Abstract: An assembly that mounts a wet cell type battery member on a vehicle frame such that jarring of the frame does not transmit substantial damage-causing shock to the battery. A first part of the assembly is fixedly secured to the vehicle frame, but a second part of the assembly is movably mounted relative to the first part. The second, movably mounted, part supports the battery, and the first and second parts are interconnected by a shock attenuating means so that force imparted to the first part by a jarring of the vehicle frame is transmitted in attenuated amounts to the battery.