Rope traction device with connected locking units

Details Rope traction device with connected locking units Rope traction device with connected locking units

1996-03-21

1998-04-14

Stodola, Daniel P.

Implements or apparatus for applying pushing or pulling force

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

Device includes rotatably driven, cable contacting drum

254333, 254391, 188 651, 188188, 182234, 182239, B66D 148

Patent

active

057383391

ABSTRACT:
A rope traction device has locking units that include a sheave on which a traction rope is wound. The rope traction device is adapted to be moved along with the traction rope and includes a traction rope inlet for feeding the traction rope to the sheave a traction rope outlet for feeding out the traction rope, a traction rope locking device for locking the traction rope when an increase in the speed of the traction rope is detected, and an auxiliary rope locking device provided in the vicinity of the traction rope inlet for detecting relative moving speed of an auxiliary rope suspended from the rope traction device. An interconnection is provided between the traction rope locking device and the auxiliary rope locking device in order to provide simultaneous engagement of the separate locking devices.

REFERENCES:
patent: 2922623 (1960-01-01), Simmons
patent: 3438423 (1969-04-01), Melull et al.
patent: 3669223 (1972-06-01), Arnold
patent: 3944185 (1976-03-01), Evans
patent: 3968865 (1976-07-01), McElroy
patent: 3980161 (1976-09-01), Mauldin
patent: 4139178 (1979-02-01), Hippach
patent: 4254941 (1981-03-01), Tanson
patent: 4729456 (1988-03-01), Sugiyama
patent: 4923037 (1990-05-01), Stephenson et al.
patent: 5228540 (1993-07-01), Glaser

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