Hydraulic powered capstan attachment
OwnerClark P. Staffordinventor
Life of this patent
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Abstract
A hydraulic capstan to pull electric or communication wire through conduit or open trenches over long distances from a stationary position. The capstan is powered by a hydraulic motor. An operator can activate the motor from inside the cab of a vehicle to turn the capstan. The rope attached to the wire is wrapped around the capstan. When the rope is pulled tight on the turning capstan, the rope comes on one side and off the other side, pulling the wire load.
Claims20
A hydraulic powered capstan attachment for pulling a load over long distances from a stationary position, comprising, in combination:
- a vehicle having a boom and a source of hydraulic power;
- a hydraulic motor selectively connectible to said source of hydraulic power and having an output shaft;
- a mounting frame having a first portion thereof which is rotatably connectible to said boom, and having a second portion thereof to which said hydraulic motor may be mounted and through which said output shaft may extend;
- a capstan removably connectible to said output shaft;
- and
- a rope wound around said capstan and having a first end thereof removably connectible to said load and having a second end thereof controlled by a worker so that when the worker pulls said rope tight on said capstan, the capstan begins pulling said load.
A hydraulic powered capstan attachment for pulling electric or communication wire, or any other desired load, through a conduit or open trenches over long distances from a stationery position, comprising, in combination:
- first means having a boom and a source of hydraulic power;
- a hydraulic motor selectively connectible to said source of hydraulic power and having an output shaft;
- a mounting frame having a first portion thereof which may be selectively and pivotably connectible to said boom, and having a second portion thereof to which said hydraulic motor may be mounted and through which said output shaft may extend;
- a capstan removably connectible to said output shaft;
- and
- second means wound around said capstan and having a first end thereof removably connectible to said load, and having a second end thereof controllable so that when said second means is pulled tight on said capstan, said capstan begins pulling said load.
Dependencies are inferred from the claim text.