Portable hydraulic rig for performing workover, drilling and oth

Details Portable hydraulic rig for performing workover, drilling and oth Portable hydraulic rig for performing workover, drilling and oth

1978-07-23

1981-05-26

Spar, Robert J.

Implements or apparatus for applying pushing or pulling force

Apparatus for hauling or hoisting load, including driven...

With rotatable, cable contacting, pulley wheel element...

173147, 52115, 254399, 254281, B66C 2360

Patent

active

042693950

ABSTRACT:
A new and improved portable hydraulic rig for performing workover, drilling or other operations on a well, usually a petroleum well, wherein the rig has a telescoping mast for telescoping to a reduced length for transportation, wherein the mast is cantilevered in use so that the travelling block moves vertically at one side of the mast, wherein the cable for the travelling block is reeved over the various sheaves including a sheaves on a hydraulic power assembly with the dead end of the line being fastened at or in proximity to the rig floor for balanced loading on the legs of the mast and to enable slack in the cables to be taken up when telescoping the mast.

REFERENCES:
patent: Re17981 (1931-02-01), Bache
patent: 1603571 (1926-10-01), Zerbe et al.
patent: 2742260 (1956-04-01), Patterson
patent: 3033527 (1962-05-01), Wilson
patent: 3960360 (1976-06-01), Elliston

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