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

B - Operations, Transporting

66

D

188/4

B66D 5/10 (2006.01) B66D 5/30 (2006.01) E21B 19/00 (2006.01) F16D 65/34 (2006.01)

Patent

CA 1242156

PATENT METHOD AND APPARATUS FOR BRAKING A DERRICK WINCH SERVICES TECHNIQUES FOREX NEPTUNE, S.A. Inventor: Jean-François Falcon ABSTRACT OF THE DISCLOSURE The invention relates to the braking, by means of a control lever (13), of the winch (1) of a derrick equipped with a band brake (4) and located away from the lever (13). The lever (13) and the band brake (4) are included in a control circuit and connected by an electric trans- mission line. A force return is provided on the lever (13) by means of a torque motor (16) receiving the posi- tion error signal relative to the mobile end (4a) of the band (4) in relation to the control value position given by the lever (13). (One figure)

471886

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