Portable hydraulic gear pulling device

Details Portable hydraulic gear pulling device Portable hydraulic gear pulling device

1979-12-04

1981-07-21

Watson, Robert C.

Metal working

Means to assemble or disassemble

Puller or pusher means, contained force multiplying operator

254 29A, 254 93R, E21B 1900

Patent

active

042790689

ABSTRACT:
A fluid gear or like pulling device comprising a body having a through axial bore adapted to admit a shaft; opposed piston chambers extending radially of the bore; pistons in the piston chambers and having a free end adapted to enter into the through bore; apparatus for pressurizing the piston chambers with fluid to force the piston outwardly of their chamber and into the through bore; a press ram mounted in the body for movement axially thereof; and apparatus for moving the press ram axially of the body, the body is sleeve shaped and the piston chamber extend through the sleeve shaped body from outside to inside, the outer end of the piston chambers being formed by the inner side of a ring that extends around the outside of the body.

REFERENCES:
patent: 2775869 (1957-01-01), Pointer
patent: 3494592 (1970-02-01), Meschonat et al.
patent: 3785617 (1974-01-01), Friedrich

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