Self-powered trolley for stringing lines between utility poles

Details Self-powered trolley for stringing lines between utility poles Self-powered trolley for stringing lines between utility poles

1997-09-29

1999-05-11

Le, Mark T.

Railways

Cable rails

2541345, H02G1/00

Patent

active

059016515

ABSTRACT:
A method and trolley for restringing downed utility wires between utility poles in which a self-powered trolley is hooked onto a remaining intact line and caused to traverse along the line by motor driven pulley wheels engaging the intact line, while towing a P-line towards the next pole. A bumper contact operates a switch to turn off the motor when the trolley reaches the vicinity of the next pole. The motor is powered by a battery in a lower housing, the lower housing mounted below an upper housing carrying the wheels and motor, with a space therebetween allowing the trolley to be hooked onto the intact line. The P-line is used to pull the replacement line to the next pole.

REFERENCES:
patent: 628994 (1899-07-01), Schottle et al.
patent: 683515 (1901-10-01), Stewart
patent: 695504 (1902-03-01), Stewart
patent: 798602 (1905-09-01), Detchon
patent: 3672636 (1972-06-01), Parsen
patent: 3861650 (1975-01-01), Jackson
patent: 4386759 (1983-06-01), Grover et al.

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