Skid-steered tractor vehicle combined steering lever and auxiliary control with self-centering mechanism
 A skid-steered tractor vehicle is driven by right and left hydrostatic transmissions having separate steering levers, one for each transmission. A centering device acting directly on the transmission controls is longitudinally shiftable against the force of a spring in response to pivotal movement of either steering lever from a neutral or idle position for returning the steering lever upon release. Also, there is a second pivotal mounting for one or both steering levers in a plane at right angles to the pivot axis of the levers for controlling auxiliary functions without interfering with the steering movements of the levers. 
Clark Equipment Company
E Y B
E02F Y10T B62D
inventional additional inventional
Earl W. Larry E. James J.
Cramton Albright Bauer