Apparatus and methods for line stringing

Details Apparatus and methods for line stringing Apparatus and methods for line stringing

1979-12-13

1982-05-11

Watson, Robert C.

Implements or apparatus for applying pushing or pulling force

Method or apparatus for placement of conductive wire

Conduit snakes

B66D 136

Patent

active

043289525

ABSTRACT:
The problem of stringing power transmission lines via a line-holding structure that has an upper cross support and no side access, such as the center strand under a cross support on a tower, is solved by the methods and apparatus disclosed. The stringing apparatus is carried in a depending manner from the aircraft by a hoist line and enables the insertion of a sock line through the line-holding structure, followed by the pulling of the line therethrough. Different forms of the stringing apparatus enable an insertion with a needle-type structure, a pull-push structure, a pivoting gate structure, and a rotary annular carrier or ring segment structure. After the sock line has been strung, one end is secured to a power line which is then threaded through the line-holding structure to complete the stringing of a center strand of power line.

REFERENCES:
patent: 1640667 (1927-08-01), Osborn
patent: 3845937 (1974-11-01), Johnson et al.
patent: 4006884 (1977-02-01), Lederhos et al.
patent: 4247084 (1981-01-01), Lindsey et al.

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