Tools – Wrench – screwdriver – or driver therefor – Stud-removal and implacement
Patent
1985-03-20
1986-02-11
Jones, Jr., James L.
Tools
Wrench, screwdriver, or driver therefor
Stud-removal and implacement
B25B 1350
Patent
active
045692572
ABSTRACT:
Apparatus for unthreading collars from casing and tubing or the like employed in bore holes, and including a chuck adaptor to be mounted on a lathe. The chuck adaptor has a shaft which is held by the chuck of the lathe. The shaft carries the housing in which three eccentrically apertured contiguous rings are mounted. The center ring is rotatable in the housing whereas the two other rings are fixed therein. A slot is provided through the housing at the position of the center ring. A handle-like projection extends from the exterior of the housing through the slot and is threaded into the rotatable ring. Gripping dies are carried internally of the rotatable ring. The fixed rings hold the collar while the center ring is rotated by rotating the projection to cause the gripping dies to seize upon the collar. The lathe turns the adaptor while a wrench engaged with the pipe threaded to the collar may be held stationary. The center ring is turned about an axis which is eccentric to that of the aperture therethrough.
REFERENCES:
patent: 348185 (1886-08-01), Bowman
patent: 1516602 (1924-11-01), Hill
patent: 1815363 (1931-07-01), Bootor
Jones Jr. James L.
Kelly John E.
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