Manipulator control system

Claim 1

IN A MANIPULATOR HAVING A SHOULDER PORTION, AN UPPER ARM PORTION PIVOTALY MOUNTED TO SAID SHOULDER PORTION, A FOREARM PIVOTALLY MOUNTED TO SAID UPPER ARM AND A WRIST MEMBER PIVOTALLY MOUNTED TO SAID FOREARM, A TOOL MOUNTED ON SAID WRIST MEMBER, SEPARATE POWER MEANS FOR PIVOTING SAID UPPER ARM, SAID FOREARM, AND SAID WRIST MEMBER INDEPENDENTLY AND SELECTIVELY ABOUT THEIR RESPECTIVE PIVOTS IN EITHER DIRECTION OF ROTATION, THE IMPROVEMENT COMPRISING SEPARATE CODED INDICIA ON SAID UPPER ARM, FOREARM, AND SAID WRIST MEMBER FOR INDICATING THE DIRECTION OF MOVEMENT OF EACH OF SAID MEMBERS ABOUT THEIR RESPECTIVE PIVOTS, CONTROL MEANS FOR CONTROLLING SAID POWER MEANS, SAID CONTROL MEANS INCLUDING A CONTROL HOUSING, SEPARATE LINEARLY MOVABLE CONTROL ELEMENTS MOUNTED ON SAID HOUSING FOR ACTUATING THEIR CORRESPONDING CONTROL MEANS, INDICIA ON SAID HOUSING CORRESPONDING TO THE INDICIA ON SAID UPPER ARM, SAID FOREARM AND SAID WRIST MEMBER AND POSITIONED TO INDICATE DIRECTION OF MOVEMENT OF SAID SEPARATE CONTROL ELEMENTS TO OBTAIN CORRESPONDING DIRECTION OF MOVEMENT OF SAID UPPER ARM, FOREARM, AND WRIST MEMBER, RESPECTIVELY.