Improvements in and relating to hydraulic jack installations for motor vehicles

摘要

883,560. Hydraulic jacks. ZAHNRADFABRIK FRIEDRICHSHAFEN A.G. June 19, 1959 [June 19, 1958], No. 21207/59. Class 78 (3). [Also in Group XXXI] In an hydraulic lifting mechanism in which a pump 4 is operated from a vehicle, e.g. tractor, gear-box 2 (through the shaft 12), fluid is supplied to the lifting ram 10 through a conduit 6 and valve 7 and returned through the valve 7 and a conduit 8, the pump supply line 5 and return line 8 both leading to the same filter 3.