(under subclass 145) Apparatus including a compressible fluid
accumulator track system having a sudden backward movement utilizing a hydraulic adjusting means to provide a differential movement connection to maintain reasonable backward movement forces over a long range of sudden backward movement. [figure] [caption]A - Vehicle frame; B - Trunion; C - Connecting rod to yoke; D - Housing; E - Gas chamber; F - Cylinder bore; G - Free piston; H - Open-ended; J - Open-ended cylinder box; K - Piston; L - Fluid chamber
