Servomechanism and vehicle suspension employing same

Claim 1

IN A MULTI-WHEEL VEHICLE HAVING WHEEL SUSPENSION MEANS, INCLUDING ROTARY ACTUATOR MEANS, CONNECTING A PLURALITY OF THE WHEELS TO THE VEHICLE BODY FOR SUSTAINING THE BODY IN A DESIRED ATTITUDE: SHAFT MEMBERS CARRIED BY THE VEHICLE, ONE MEMBER OF WHICH, WITH MEANS ASSOCIATED THEREWIH, FORMS AN INTERCONNECTING STRUCTURE IN ONE OF SAID WHEEL SUSPENSION MEANS; A FOLLOW-UP MECHANISM CARRIED BY THE VEHICLE AND CONNECTED TO A PLURALITY OF THE SHAFT MEMBERS FOR CAUSING SAID ONE SHAFT MEMBER TO OPERATE IN ACCORDANCE WITH A SECOND ONE; SAID FOLLOW-UP MECHANISM COMPRISING TELESCOPICALLY RELATED VALVE ROTOR PARTS ASSOCIATED WITH, AND CONNECTED TO DIFFERENT ONES OF, THE SHAFT MEMBERS; SAID VALVE PARTS IN COMMUNICATION WITH HIGH AND LOW PRESSURE FLUID SOURCES HAVING FLUID DIRECTING GROOVES AND PORTS THEREIN WHEREBY SAID PARTS ARE EFFECTIVE FOR SELECTIVELY APPLYING PRESSURE FLUID FROM THE HIGH-PRESSURE SOURCE OR EXHAUSTING PRESSURE FLUID TO THE LOW-PRESSURE SOURCE; POWER MEANS IN THE FOLLOW UP MECHANISM COMPRISING A LOAD SUSTAINING, ROTARY ACTUATOR AND CONNECTED TO MOVE WITH SAID ONE SHAFT MEMBER AND THE ASSOCIATED VALVE ROTOR PART TO DUPLICATE THE MOTION OF, AND TAKE A CORRESPONDING POSITION TO, THE SECOND SHAFT MEMBER AND ITS ASSOCIATED ROTOR PART, SAID INTERCONNECTING STRUCTURE FORMED BY THE ONE SHAFT MEMBER AND ITS ASSOCIATED MEANS IN SAID ONE WHEEL SUSPENSION MEANS INTERCONNECTING SAID ROTARY ACTUATOR AND THE TRACK WHEEL OF THAT SUSPENSION MEANS; MEANS HYDRAULICALLY INTERCONNECTING THE POWER MEANS WITH, FOR CONTROLLED OPERATION BY, THE VALVE PARTS; AND MEANS FOR ROTATING THE SECOND SHAFT MEMBER.