Draw works traveling block motion control apparatus

Details Draw works traveling block motion control apparatus Draw works traveling block motion control apparatus

1984-10-11

1986-05-27

Levy, Stuart S.

Implements or apparatus for applying pushing or pulling force

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

Device includes rotatably driven, cable contacting drum

74524, 254379, B66D 156, G05G 104

Patent

active

045911312

ABSTRACT:
The upward and/or downward travel of a traveling block in a derrick is controlled to prevent travel beyond normal, safe operating limits. A control line is positioned across the vertical movement axis of the traveling block and upon being moved by the traveling block will actuate sensors to brake and deactivate the draw works, in the event the traveling block traverses beyond safe predetermined limits.

REFERENCES:
patent: 2241274 (1941-05-01), Severson
patent: 2564457 (1951-08-01), Wilson
patent: 3940577 (1976-02-01), Christofer

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