Implements or apparatus for applying pushing or pulling force – Apparatus for hauling or hoisting load – including driven... – Device includes rotatably driven – cable contacting drum
Patent
1978-07-11
1981-03-24
Jillions, John M.
Implements or apparatus for applying pushing or pulling force
Apparatus for hauling or hoisting load, including driven...
Device includes rotatably driven, cable contacting drum
254310, 254315, 254335, B66D 108, B66D 126
Patent
active
042575788
ABSTRACT:
An oil well service rig having three reels, two of the reels actuated by a hydraulic pump through a gear box which provides for selective engagement or disengagement and a two speed gear ratio change for either reel, the hydraulic pump being driven by a gasoline engine. An independent hydraulically operated brake system is utilized on the reels wherein one side of each reel is provided with a greater diameter than the other side, the larger side having a brake caliper pad assembly in engagement therewith. A smaller reel, also controlled by the hydraulic motor, controls the inclination and disposition of a mast having a double sheave assembly at its top receiving cables from each main reel for raising and lowering tools into the oil well shaft.
REFERENCES:
patent: 3035414 (1962-05-01), Smith
patent: 3722707 (1973-03-01), Hedeen
patent: 3776518 (1973-12-01), Witwer
patent: 3797325 (1974-03-01), Christison
patent: 3988008 (1976-10-01), Morrow et al.
patent: 4069088 (1978-01-01), Cottam
patent: 4185520 (1980-01-01), Henneman et al.
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