Abstract: A robot having a low-inertia manually actuated arm that functions as a teaching arm for a symmetrically similar powered operating arm disposed on the robot symmetrical thereto. The teaching arm is provided with compensating devices continuously balancing the combination of the teaching arm and a tool removably mounted thereon so that gravitational forces are continuously compensated. The teaching arm is in a state of continual equilibrium so that the tool thereon can be moved manually accurately and smoothly and substantially inertia-free. The teaching arm accordingly functions as a light-weight highly accurate programmer for the powered operating arm of the robot.

Abstract: A control system for programming operations of a spraygun robot for spraying paint comprises a mobile control structure having jointed parts of the robot, and also possesses transducers corresponding to transducers of the robot, for transforming electrical signals respectively from and into operations of the mobile structure and of the robot. The control structure is relatively light and mobile to facilitate manual operation. The robot is sufficiently massive and heavy to permit numerous operations of the joint devices thereof in a point-spray atmosphere.

Abstract: A gun, for spraying paint, of the type that comprises a nozzle for spraying the paint, a pair of oppositely located nozzles for sending jets of compressed air to the sides of a spray cone in order to flatten and fan it out. A control valve is connected to the line supplying the compressed air to the pair of nozzles.