Power wrench for turning threaded connection members

Details Power wrench for turning threaded connection members Power wrench for turning threaded connection members

1978-02-21

1979-01-02

Jones, Jr., James L.

Tools

Wrench, screwdriver, or driver therefor

Machine

B25B 1346

Patent

active

041321367

ABSTRACT:
The power wrench for turning threaded connection members comprises a power cylinder having a piston rod extending from one end of the cylinder and being operably coupled to a wrench arm connectable to a connection member for turning the same. A reaction support structure has a pivotal connection with the other end of the cylinder. The reaction support structure is supported from a pair of connection members. The structure includes discretely adjustable means for varying the angular position of the cylinder so as to maintain at mid-stroke of the rod, a substantially perpendicular relationship between the piston rod and the wrench arm to thereby accommodate the power wrench to a wide range of distinctly different patterns of the connection members.

REFERENCES:
patent: 2972918 (1961-02-01), Huff et al.
patent: 3706244 (1972-12-01), Wilmeth

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