FIELD: rescue work. SUBSTANCE: the device uses a rotary drum with cable reeled up on it, the free end of the cable is attached to the object to be abandoned, and a brake gear. The brake gear has a fixed drum with an annular magnetic circuit and a disk with permanent magnets. The disk is rigidly connected to the rotary drum and located inside the annular magnetic circuit. Permanent magnets have an axial magnetization and are spring-loaded in the disk radial grooves for movement under the action of centrifugal forces. Powder of carbonyl iron is placed between the disk and magnetic circuit. EFFECT: enhanced reliability. 2 cl, 2 dwg
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Authors
Dates
1997-06-20—Published
1993-06-22—Filed