Implements or apparatus for applying pushing or pulling force – Apparatus for hauling or hoisting load – including driven... – With rotatable – cable contacting – pulley wheel element...
Patent
1981-08-31
1988-08-30
Jillions, John M.
Implements or apparatus for applying pushing or pulling force
Apparatus for hauling or hoisting load, including driven...
With rotatable, cable contacting, pulley wheel element...
B66D 108
Patent
active
047671009
ABSTRACT:
An improved drilling rig which is mounted on a trailer to be transported from one location to another. The drilling rig includes a hoist for raising and lowering equipment, the hoist including hydraulic cylinders and a pair of cables. One end of each cable is connected to a base and the opposite end of each cable forms an equipment end portion which is connectable to the equipment to be raised and lowered, a portion of each cable being moveably connectable to a portion of the hydraulic cylinders. Portions of the hydraulic cylinders are moveable to raised and lowered positions for raising and lowering the equipment end portions of the cable and the equipment connected thereto.
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