Brown & Root, Inc.

Robert F Stager

Graham J Blight

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.

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Houston, TX, United States of America

Robert F Stager