F - Mech Eng,Light,Heat,Weapons – 04 – B
Patent
F - Mech Eng,Light,Heat,Weapons
04
B
103/22
F04B 23/06 (2006.01) F04B 9/02 (2006.01) F04B 13/02 (2006.01) F04B 19/02 (2006.01) F04B 49/12 (2006.01)
Patent
CA 1081539
ABSTRACT OF THE DISCLOSURE Apparatus is provided for moving controlled quantities of a material from one location to another and increasing the pressure thereof. The apparatus includes at least two cylinders having rams reciprocable therein. The rams are driven by a rock- er arm which is pivotally connected to outer ends of both rams and is pivotally supported at a position therebetween. The arm is driven through a fluid-operated cylinder having a piston rod con- nected to one end of the arm, thereby reciprocating the rams in opposite directions. The ram cylinders have inlets connected to a source of the material under low pressure with a ball check valve located between the source and each inlet. Outlets of these cylinders are connected to a common outlet with a ball check valve also located between the common outlet and each cylinder outlet. The valves are arranged so that the inlet check valves and the outlet check valves operate in opposing relationship to provide positive opening and closing action and a precise flow of material. The cylinders and rams are also designed to require minimum maintenance in the nature of cleaning and repair.
274130
Krueger Wallace F.
Macrae & Co.
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