Winding – tensioning – or guiding – Coil holder or support – Spool or core
Patent
1975-02-10
1976-06-22
Christian, Leonard D.
Winding, tensioning, or guiding
Coil holder or support
Spool or core
242 754, 2421562, B65H 7500, B65H 2306, B65H 5938
Patent
active
039646920
ABSTRACT:
A winch spool having disc brake system, such as a heavy duty winch that might be mounted on the deck or chassis of a drilling rig or may be employed to control the anchoring devices of a floating drilling platform, for example. The brake system for the winch spool may comprise a brake disc adapter fixed to at least one of the circular end flanges of the winch spool and may include a vertical generally circular support portion from which extends a transverse generally cylindrical portion having a disc support flange at the free extremity thereof. A circular brake disc may be secured to the adapter support flange in spaced relation with the flange of the winch spool and may be provided with opposed friction surfaces disposed in generally parallel relation with the flange of the spool. A brake caliper mechanism may be pivotally connected to the winch support and may be movable from an operative position, where brake block systems carried thereby are received about the brake disc, to an inoperative position, where the caliper mechanism is completely disengaged from the brake disc allowing access to the brake shoes for purposes of cleaning, repair or replacement. A control system is provided for actuation of the disc brake mechanism which utilizes an air pressurized hydraulic system that is also capable of locking the brake system to prevent rotation of the spool in the event the pneumatic pressure in the system is reduced below a predetermined minimum for any reason.
REFERENCES:
patent: 2964440 (1960-12-01), Stevens
patent: 2991849 (1961-07-01), Erickson
patent: 3717313 (1973-02-01), Williams
Christian Leonard D.
Mattco, Inc.
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