LOAD-LIFTING ELECTROMAGNET Russian patent published in 1998 - IPC

FIELD: mechanical engineering; load-lifting facilities. SUBSTANCE: load-lifting electromagnet has magnetic circuit, inner and outer poles, protective plate, control winding, guard, hermetically sealed box-shaped or tubular shaped space, end face connector or intermediate connector and filling compound. Connector consists of two housings, cover, clip, tubber hose, fastening members and pins. Magnetic circuit is of ellipsoidal shape with horizontal plane from below and is provided with hermetically shaped space, inner and outer ribbing and guard. Control winding is made of insulated wire, for instance, aluminium rectangular wire, with empty spaces filled with insulating cementing compound and is banded from outside with glass-fiber cloth and coated with above-indicated compound. Control winding output leads of spiral shape. Elastic tube is placed inside hermetically shaped tubular space. EFFECT: enlarged operating capabilities. 6 cl, 10 dwg