Coarse and fine electric servomotor position selector

Claim 1

A PROGRAMMED MANIPULATOR FOR EFFECTING PREDETERMINED WORK MOTIONS COMPRISING A WORK PERFORMING DEVICE, MOTOR MEANS FOR MOVING SAID DEVICE TOWARD A DESIRED POSITION, MEANS OPERATED BY SAID MOTOR MEANS FOR PRODUCING A SIGNAL VARIABLE IN ACCORDANCE WITH THE ACTUAL POSITION OF SAID DEVICE AT ANY GIVEN MOMENT, MEANS FOR PRODUCING A FIXED SIGNAL IN ACCORDANCE WITH SAID DESIRED POSITION OF THE DEVICE, SENSING MEANS FOR COMPARING SAID SIGNALS TO DETERMINE WHEN SAID SIGNALS ARE APPROXIMATELY EQUAL, SWITCH MEANS OPERATED BY SAID MOTOR MEANS, SAID SWITCH MEANS HAVING A PLURALITY OF CONTACTS SPACED IN ACCORDANCE WITH CERTAIN ACTUAL POSITIONS OF SAID MOTOR MEANS, SELECTOR SWITCH MEANS HAVING A NUMBER OF CONTACTS CORRESPONDING TO SAID PLURALITY OF CONTACTS, RESPECTIVE CONDUCTOR MEANS CONNECTING CORRESPONDING CONTACTS OF SAID MOTOR OPERATED SWITCH MEANS IN CIRCUIT WITH THOSE OF SAID SELECTOR MEANS, RELAY MEANS CONTROLLED BY SAID SENSING MEANS WHEN SAID SIGNALS ARE APPROXIMATELY EQUAL FOR TRANSFERRING CONTROL OF SAID MOTOR MEANS TO SAID MOTOR OPERATED SWITCH MEANS AND MEANS ACTUATED BY SAID MOTOR OPERATED SWITCH MEANS FOR STOPPING SAID MOTOR MEANS WHEN SAID MOTOR OPERATED SWITCH MEANS ENGAGES A CONTACT CORRESPONDING TO A SELECTED CONTACT OF SAID SELECTOR SWITCH MEANS.