Roy Eugene Rice

US Patent:

40919340, May 30, 1978

Filed:

Apr 1, 1977

Appl. No.:

5/783829

Inventors:

Roy E. Rice - Uhrichsville OH

Assignee:

Ruger Equipment, Inc. - Uhrichsville OH

International Classification:

B66C 2300

US Classification:

212 8R

Abstract:

A swivel mounted pump apparatus for a mine crane is provided having an integral fluid-flow control valve incorporated in the swivel mounting structure. The pump mechanism is a hand operated fluid pump which is mounted on an upright supporting spindle for selective swiveling movement to a desired operating position. Fluid interconnection of the pump mechanism to a fluid reservoir and actuating ram of the associated apparatus is achieved through internal passageways formed in the supporting spindle to permit operator control of fluid flow through the system. This valve may be selectively operated to enable either actuation of the ram by the mechanism or a reverse fluid flow in the system and to also provide protection to the apparatus from excessive fluid pressures that may build up through incorrect or improper use of the associated ram mechanism.