Hydraulically operated drilling apparatus

Details Hydraulically operated drilling apparatus Hydraulically operated drilling apparatus

1974-11-26

1977-02-01

Spar, Robert J.

Implements or apparatus for applying pushing or pulling force

Method or apparatus for placement of conductive wire

Conduit snakes

173147, B66C 2360

Patent

active

040058514

ABSTRACT:
A hydraulically operated drilling apparatus having a main mast on which an extension is mounted having a rope winch or the like for operating a rotary drilling head or power capstan. The drilling head is guided on a pair of diametrically opposed rails fixed on the outer circumference of the mast along its entire length and is pulled by a cable of a block and tackle system activated by a hydraulic power drive located within the mast. The cable of the block and tackle system which in part runs on the exterior of the mast passes into the mast and is caused to run over a movable pulley sheave secured at each end of the mast. The sheaves at the end of the mast are mounted on bearings which also anchor the cable, which bearings are securely and integrally formed with end caps or covers, sealing the end of the mast.

REFERENCES:
patent: 2186720 (1940-01-01), Edwards
patent: 2676677 (1954-04-01), Anderson et al.
patent: 2868019 (1959-01-01), Bull
patent: 3396946 (1968-08-01), Maddock
patent: 3535985 (1970-10-01), Attebo
patent: 3684035 (1972-08-01), Wills
patent: 3732935 (1973-05-01), Gibson
patent: 3738433 (1973-06-01), O'Leary
patent: 3835940 (1974-09-01), Winter, Jr.

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