F - Mech Eng,Light,Heat,Weapons – 16 – H
Patent
F - Mech Eng,Light,Heat,Weapons
16
H
74/72
F16H 19/04 (2006.01) F15B 15/08 (2006.01)
Patent
CA 1144398
ABSTRACT OF THE DISCLOSURE APPARATUS FOR GENERATING RECIPROCATORY MOTION Apparatus for generating linear motion comprises a body on one end of which is mounted a cylinder. A piston in the cylinder is joined to an actuating beam extending into the body. The actuating beam has moving surfaces that cooperate with fixed surfaces in the body to define a linear bearing. Fluid under pressure is introduced through a duct in the body to a port in the fixed surface of the linear bearing. It enters the space in the cylinder above the piston via a port in a moving surface of the actuating beam which leads to a duct in the actuating beam that opens through the crown of the piston. A resilient sealing member between the fixed and moving surface of the linear bearing maintains fluid-tight communication between the fixed and movable part over their range of relative movement. The actuating beam may carry a rack that drives a pinion through ninety degrees as the piston travels, and two opposed cylinders may be provided to give a reciprocatory movement, or a spring return may be provided.
384556
Gowling Lafleur Henderson Llp
Worcester Controls Corporation
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