Apparatus for pulling cable

Details Apparatus for pulling cable Apparatus for pulling cable

1990-06-04

1992-10-06

Watson, Robert C.

Implements or apparatus for applying pushing or pulling force

Method or apparatus for placement of conductive wire

Conduit snakes

B65H 5900

Patent

active

051525062

ABSTRACT:
A primary device placed at the upstream end of a duct and a relay device placed at an access point pull a cable through respective duct segments. The pulling speed of the primary device is controlled by an operator. The pulling speed of the relay device is variable in response to movement of the cable by the primary device to maintain equilibrium between the pulling speeds of the devices. The pulling tension exerted upon the cable by each device is monitored and discontinued upon reaching a predetermined maximum value. At the inlet to the second segment, lubricant is supplied to the cable at a quantitative rate which is proportional to the pulling speed.

REFERENCES:
patent: 3912226 (1975-10-01), Jackson
patent: 4226405 (1980-10-01), Roodt
patent: 4331322 (1982-05-01), Woodruff
patent: 4337922 (1982-07-01), Streiff et al.
patent: 4350323 (1982-09-01), Charles et al.
patent: 4458880 (1984-07-01), Conti
patent: 4576362 (1986-03-01), Langston
patent: 4644791 (1987-02-01), Sonoda et al.
patent: 4669705 (1987-06-01), Langston
patent: 4757976 (1988-07-01), Langston
patent: 4856760 (1989-08-01), Frost et al.

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