Implements or apparatus for applying pushing or pulling force – Method or apparatus for placement of conductive wire – Conduit snakes
Patent
1975-04-18
1976-07-20
Smith, Al Lawrence
Implements or apparatus for applying pushing or pulling force
Method or apparatus for placement of conductive wire
Conduit snakes
E21C 2916
Patent
active
039702863
ABSTRACT:
The apparatus is for use in a method for installing power lines which are to be hung between spaced poles. The power lines are supported by and installed with the assistance of spacers, typically referred to in the art as "lobsters" and which are hung by means of the pulley apparatus of this invention from the tensioned messenger wire. The pulley means may comprise one or more pulleys, a support bracket, and pivotal arms that facilitate easy attachment of a pulling line or tag line to the apparatus.
REFERENCES:
patent: 692864 (1902-02-01), Lantz
patent: 797769 (1905-08-01), Hall
patent: 798652 (1905-09-01), Baughman
patent: 2983037 (1961-05-01), Hendrix
patent: 3596878 (1971-08-01), Parsen
Smith Al Lawrence
Watson Robert C.
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