Method and apparatus for braking a derrick winch

Details Method and apparatus for braking a derrick winch Method and apparatus for braking a derrick winch

1987-06-29

1989-09-12

Oberley, Alvin

Fluid-pressure and analogous brake systems

Multiple control

Fluid and electric

254273, 254379, 175 27, 303 20, B66D 148

Patent

active

048653934

ABSTRACT:
The invention relates to the braking, by means of a control lever, of the winch of a derrick equipped with a band brake and located away from the lever. The lever and the band brake are included in a servo-control circuit and connected by an electric transmission line. A force return is provided on the lever by means of a torque motor receiving the position error signal relative to the mobile end of the band in relation to the control value position given by the lever.

REFERENCES:
patent: 2271247 (1942-01-01), Brown et al.
patent: 3461978 (1969-08-01), Whittle
patent: 3632177 (1972-01-01), Packer
patent: 3671082 (1972-06-01), Stevens
patent: 3759489 (1973-09-01), Jones
patent: 4046355 (1977-09-01), Martin
patent: 4076327 (1978-02-01), Hubbard
patent: 4093184 (1978-06-01), Wieschel
patent: 4131325 (1978-12-01), Bayliss
patent: 4434971 (1984-03-01), Cordrey
patent: 4662608 (1987-05-01), Ball
patent: 4696377 (1987-09-01), Richardson et al.

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