Hydraulic pulling tool

Details Hydraulic pulling tool Hydraulic pulling tool

1983-12-01

1984-12-25

Watson, Robert C.

Metal working

Means to assemble or disassemble

Overedge assembling means

29252, 72391, B21J 1506

Patent

active

044894716

ABSTRACT:
A hydraulic pulling tool comprising a piston slidable within a cylinder and having a co-axial bore therein. Lateral passages open from the bore through the piston to the leading face thereof and a screw piston is pushed in the bore by threading a screw pusher so that the hydraulic fluid in the bore is forced out into the cylinder to retract the piston. For a blind riveter, a pair of jaws is driven by a pusher piston also carried at the leading end of the bore so that the build up of pressure causes the jaws to grip a blind rivet firmly.

REFERENCES:
patent: 3164283 (1965-01-01), Olson
patent: 3934325 (1976-01-01), Jaffe
patent: 4187708 (1980-02-01), Champoux

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