B - Operations – Transporting – 66 – D
Patent
B - Operations, Transporting
66
D
254/96
B66D 5/26 (2006.01) B66D 1/14 (2006.01) F16D 55/32 (2006.01) F16D 59/02 (2006.01) F16D 65/18 (2006.01)
Patent
CA 1284798
Abstract of the Disclosure Winch Drag Brake Apparatus In order to overcome the disadvantage of overspinning of a winch drum when a disconnect device adjacent the drum is disengaged, a drag brake apparatus is provided for limitedly restricting the rotation of the drum when an actuator having a braking element is continually urged against the drum by a spring. A control mechanism includes a control lever assembly movable to operate a hydraulic valve assembly for the primary control of the winch drum, and movable to operate an associated valve for controllably directing pressurized fluid to the actuator for supplementing the spring force. Thus, a first drag brake mode can be attained for substantially freespool operation of the drum, and a second drag brake mode can be attained for controlled load dropping operation of the drum.
553145
Cobb Raymond P.
Davenport Richard G.
Smith Duane R.
Caterpillar Inc.
Cobb Raymond P.
Davenport Richard G.
Kirby Eades Gale Baker
Smith Duane R.
LandOfFree
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