Adjustable torque control winch system

Details Adjustable torque control winch system Adjustable torque control winch system

1977-12-09

1981-06-30

Truhe, J. V.

Electricity: motive power systems

With particular motor-driven load device

Tension-maintaining type of motor-control system

318432, 242 7551, B65H 7700, H02P 706

Patent

active

042764980

ABSTRACT:
System for maintaining a preselected constant torque on a loaded reel of a winding mechanism. The system includes a d.c. motor wherein both the armature and field windings are adapted for independent rotation about a common axis. The field winding is coupled to the reel so that the reel rotates at a velocity proportional to that of the field winding. A drive motor establishes a constant speed rotation of the armature winding. A torque control drives constant currents through the armature and field windings of the motor. The amplitudes of the armature and field currents are preselected so that a constant torque is maintained at the reel irrespective of variations of the load.

REFERENCES:
patent: 2607908 (1952-08-01), Edwards et al.
patent: 2749459 (1956-06-01), Williford, Jr.
patent: 2791933 (1957-05-01), Crockett
patent: 3192421 (1965-06-01), Saylor

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