Stud drive tool

Details Stud drive tool Stud drive tool

1981-04-01

1985-10-22

Jones, Jr., James L.

Tools

Wrench, screwdriver, or driver therefor

Stud-removal and implacement

81 5735, 81 5738, 81445, B25B 1350

Patent

active

045481032

ABSTRACT:
A stud drive tool for threading and unthreading a stud in a head of a vessel, such as a reactor, including a base plate adapted to rest on a flange on the head of vessel. The tool includes means for inserting the stud into a hole in the vessel and to thread and unthread the stud therein.
The base plate effectively absorbs any counter-torque produced by the turning of the stud while it is being driven because handles, which serve as reaction rods and guides, are rotatable and rest against the outside of the flange.
The tool for threading and unthreading the stud means includes a moveable jaw clamp insertable into a threaded hole in the top of the stud and moveable into a position to clasp the stud and pneumatic means in which the pressure is manually regulated to equalize the weight of the stud as it is being threaded into or unthreaded out of the vessel, and an air motor which turns the stud.

REFERENCES:
patent: 1386455 (1921-08-01), Clemens
patent: 2497633 (1950-02-01), Shapiro et al.
patent: 3075800 (1963-01-01), Rowekamp
patent: 4266451 (1981-05-01), Boudet et al.

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