International Harvester Company

William D Lester

Robert M Fachini

Maxwell D McClure, Iii

An indicator system connected with a guide wheels steering hydraulic cylinder and informing a vehicle operator about the guide wheel angular position relative to the vehicle rectilinear travel direction under any weather, terrain or light conditions. Right and left contact plates located along one selection of the outer surface of the cylinder are contacted by a contact arm moving with the piston rod of the cylinder. Since the rod reciprocates depending on the direction of turning the contact is used to complete a circuit lighting a left or right turn lamp, thus indicating when a predetermined turn angle is exceeded in either direction.

Guide wheel angle indicator

Power steering mechanism for a vehicle having a pair of front driving wheels and a rear steerable guide wheel assembly including a vertical pivot shaft pivoted on the vehicle frame, the steering mechanism including an actuating arm attached to the pivot shaft and a double acting hydraulic cylinder with a double ended piston rod, the body of the cylinder being pivotally mounted on the actuating arm and one end of the piston rod being pivotally attached to the vehicle frame.

Power steering mechanism for cotton pickers

A cotton harvester having a hydrostaticly steered rear guide wheel assembly is provided with a steering arm having a raised horizontal segment which moves with the guide wheel. When the guide wheel off center, the raised horizontal segment contacts one of a pair of contact arms and grounds an electric circuit from one of a pair of indicator lamps in the operator's compartment turning the lamp on and informing the operator of the direction in which the harvester will steer.

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Memphis, TN, United States of America

William D Lester