WINCH LAUNCH SYSTEM

1326477 Winches KELSEY-HAYES CO 6 Dec 1971 [7 Dec 1970] 56630/71 Heading B8B A winching system on an oil rig or ship for raising and lowering a vessel 10, comprises a blower 50 drivable by the winch drum 30 to control the rate of descent of the vessel once a brake 60, normally preventing rotation of...

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Bibliographic Details
Main Author WILLIAM T. HIGGINS
Format Patent
LanguageEnglish
Published 14.11.1972
Edition1
Subjects
BLASTING
BRAKES
CAPSTANS
CLUTCHES
COUPLINGS FOR TRANSMITTING ROTATION
ENGINEERING ELEMENTS AND UNITS
EQUIPMENT FOR SHIPPING
GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS
HAULING
HEATING
HOISTING
HOISTS
LIFTING
LIGHTING
MECHANICAL ENGINEERING
PERFORMING OPERATIONS
RELATED EQUIPMENT
SHIPS OR OTHER WATERBORNE VESSELS
TACKLES, e.g. PULLEY BLOCKS
THERMAL INSULATION IN GENERAL
TRANSPORTING
WEAPONS
WINCHES
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Summary:1326477 Winches KELSEY-HAYES CO 6 Dec 1971 [7 Dec 1970] 56630/71 Heading B8B A winching system on an oil rig or ship for raising and lowering a vessel 10, comprises a blower 50 drivable by the winch drum 30 to control the rate of descent of the vessel once a brake 60, normally preventing rotation of the drum in the vessel descending direction, has been released. The blower 50 has blades curved such that maximum resistance to rotation is offered during descending moment of the vessel 10 and minimum resistance is offered during a raising thereof. The drum 30 is driven through reduction gearing 36, 42, 40 and shaft 45 by an electric motor 70, a controllable clutch 74 being placed between the motor 70 and shaft 45 to free the shaft during descending moment of the vessel 10. The disc brake 60 includes a one way clutch 64 which permits the shaft 45 to turn in the vessel raising direction while the brake is applied, and the brake 60 and clutch 74 are coupled through a lever system 80, 90 such that the clutch 74 is disengaged prior to release of the brake 60. The brake 60 is normally applied by a weight 75 which is apertured to receive one end of the lever 80 fulcrumed at 83, whereby downward movement of the end 82 of lever 80 shifts the weight and releases the brake. A hand wheel 95 is provided to manually rotate the unloaded winch drum once the brake 60 is released, and a hand crank 100 is provided to manually rotate through reduction gearing, the loaded winch drum. To release the brake 60, from the position of the vessel 10, a lever 127 is provided adjacent to vessel 10, and when pulled withdraws a pin 123 from a weight 120, which when released, lowers the lever end 82 to raise the weight 75 to release the brake 60.
Bibliography:Application Number: USD3702690