Apparatus and method for pulling cable

Details Apparatus and method for pulling cable Apparatus and method for pulling cable

1996-04-18

1997-09-09

Matecki, Katherine

Implements or apparatus for applying pushing or pulling force

Apparatus for hauling or hoisting load, including driven...

Device includes rotatably driven, cable contacting drum

226 42, 226 44, 254272, 254361, 2541343R, H02G 108, B66D 100

Patent

active

056647654

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: 3201090 (1965-08-01), Jones
patent: 4458880 (1984-07-01), Conti
patent: 4609181 (1986-09-01), Fisher et al.
patent: 4669705 (1987-06-01), Langston
patent: 4876661 (1989-10-01), Langston
patent: 4899988 (1990-02-01), Mills
patent: 5029816 (1991-07-01), Langston
patent: 5152506 (1992-10-01), Pickrell
patent: 5324006 (1994-06-01), Pickrell

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