F - Mech Eng,Light,Heat,Weapons – 15 – B
Patent
F - Mech Eng,Light,Heat,Weapons
15
B
311/15, 138/68.1
F15B 13/06 (2006.01) F15B 7/00 (2006.01) F15B 7/08 (2006.01) F15B 11/22 (2006.01)
Patent
CA 1141626
A B S T R A C T An apparatus for setting the position of a device pro- vided with a plurality of adjusting hydraulic cylinders (16) by simultaneously supplying to the various cylinders quantities of hydraulic medium corresponding to the desired setting of said device. Each of the hydraulic cylinders communicates with a respective displacement chamber in a hydraulic pump which is common to all hydraulic cylinders. The pump comprises a cylinder and a piston rod axially displaceable therein. The piston rod is stepped to form a plurality of annular, concentrical piston surfaces, and the inner diameter of the cylinder is stepped in a corresponding manner to the piston rod. This results in that there is formed in front of each piston surface a displacement chamber. The chambers are mutually sealed during a working stroke of the pump.
325193
Andersson Thomas B.
Kirby Eades Gale Baker
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