Apparatus for screwing pipes together

Details Apparatus for screwing pipes together Apparatus for screwing pipes together

1982-09-24

1985-01-08

Jones, Jr., James L.

Tools

Wrench, screwdriver, or driver therefor

Machine

81 5716, 81 5724, 81 5735, B25B 1350

Patent

active

044921349

ABSTRACT:
A power tongs for threadedly connecting together pipes which are to constitute casings for boreholes has a platform for a reciprocable slide which supports a power-driven threading clamp and a counter device. The clamp and the counter device are connected to each other by several level compensating hydraulic cylinders each of which is movable horizontally within limits relative to the slide against the opposition of resilient support elements. The upper end portions of the cylinders are connected to a holding plate for the clamp.

REFERENCES:
patent: 1386318 (1921-08-01), Cowan
patent: 2405757 (1946-08-01), Rowland
patent: 2668689 (1954-02-01), Cormany
patent: 2669958 (1954-02-01), Sweeney
patent: 3722603 (1973-03-01), Brown

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