F - Mech Eng,Light,Heat,Weapons – 15 – B
Patent
F - Mech Eng,Light,Heat,Weapons
15
B
121/77
F15B 15/00 (2006.01) B06B 1/18 (2006.01) F01B 11/00 (2006.01) F01L 21/02 (2006.01)
Patent
CA 1123283
TITLE OF THE INVENTION "Reciprocating drive means" ABSTRACT OF THE DISCLOSURE Reciprocating drive means powered by a fluid such as com- pressed air comprising an elongate inner member with a plurality of passageways therein, an outer member slidable on the inner member and a shuttle member slidable with respect to the inner member and within the outer member, the passageways in the inner member being variously and intermittently so connected in use to each other by way of ports in the inner member and compartments provided within the outer member and the shuttle that, upon connection of a deter- mined one of said passageways to a fluid pressure source the outer member moves with reciprocating action with respect to the inner member. The inner member has two fixed discs thereon, between which discs the shuttle member can oscillate, the discs having seals on their peripheral surfaces to seal against the inner wall of the outer member, the outer member is cylindrical with end walls having seals slidable on the inner member and cooperating with ports therein and the shuttle member has axially spaced seals on its inner peripheral surface to cooperate with ports in the inner member and to seal against the inner member and define one of the compartments there- between. Following movement of the outer member in one direction of movement, the shuttle member is moved by pressure in an opposite direction to cause the outer member to move in said opposite direction.
336356
Baron Frances P.
Gowling Lafleur Henderson Llp
West Frank E.
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