Implements or apparatus for applying pushing or pulling force – Method or apparatus for placement of conductive wire – Conduit snakes
Patent
1994-01-19
1995-11-07
Watson, Robert C.
Implements or apparatus for applying pushing or pulling force
Method or apparatus for placement of conductive wire
Conduit snakes
2541343R, E21C 2916
Patent
active
054641934
ABSTRACT:
A portable wire pulling device is disclosed which can be secured into pulling position and easily released. The device has a housing; a frame with vertical hollow posts, a sheave between the posts, a motor-driven extension clamp moveable outwardly from the posts to engage and secure to a stationary object; a motor driven capstan mounted on the housing; controls and selectors to select between AC and DC and to control the motors; and wheels and hand grips for moving the device; such that the device can be secured into position by the extension clamp and a wire feed pulling line attached to wires to be pulled routed over the sheave to the capstan and the wire pulled securely and evenly by the capstan. The device can be run on AC or DC power, or AC power can be used to charge internally mounted DC batteries. A full battery charge will allow the device to operate for a full eight-hour shift, and it can easily be recharged overnight. A number of pulling speeds can be obtained, depending on the type of control and selection device used, from slow speeds for precise control to fast speeds for high productivity.
REFERENCES:
patent: 2948510 (1960-08-01), Kieser
patent: 3072383 (1963-01-01), Vanderhagen
patent: 4270734 (1981-06-01), Straight
patent: 4497470 (1985-02-01), Carter et al.
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