Firma August Bilstein

Friedrich Keilholz

A shear-type vehicle jack has an arm articulated to a leg whose foot is provided with a rolling formation adapted to rest upon the ground and a larger locating portion. A crank rotates a thread spindle in a nut pivotally received in the upper end of the leg and engaging the arm with a bearing arrangement. The free end of the arm has carrying formations adapted to engage the vehicle chassis in a manner free from bending moments.

Vehicle lifting jack

A hydropneumatic shock absorber for use with a motor vehicle or the like has disposed therein a valve, which is movable in the normal course of operation relative to a fluid passage. A heat sensitive element sensitive to the temperature of a damping fluid, such as oil, of the shock absorber is connected to the valve whereby the valve is urged from flow-preventing engagement with the passage after a predetermined damping fluid temperature is reached. Thus the provided valve permits increased damping fluid movement through the passage with temperatures in excess of the predetermined temperature.

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Ennepetal, Germany

Friedrich Keilholz