Abstract: Small workpieces are loaded into a pair of detenting (spring-biased) jaws along a loading station center line by a reciprocal feed finger. The jaws are shifted to a work station center line, where tooling is applied, by advancing one jaw toward the other. The jaws are shifted back to the loading station center line where the workpiece is ejected from the jaws concurrently with the loading of the next workpiece.

Abstract: Coacting, self-centering jaw members in a machine tool which machines small, cylindrical lightweight workpieces; coaction and self-centering is achieved by an equalizer arm actuated by a slide; the slide also actuates one jaw member while the equalizer applies an equal force to the other jaw member; a spring bias applied to each jaw member speeds production.

Abstract: A fixture for holding and presenting a work piece to a tool. The fixture includes a pair of pivotally mounted arms each of which has a jaw for closing on and engaging the work piece. The arms are disposed between a pair of opposed plates. Rollers are mounted on the plates adjacent the opposite ends thereof. A tapered rod extends between the rollers with a narrow part thereof engaging the rollers when the jaws are in their open position. A spring biases the tapered rod to dispose a wider portion of the rod in the space between the rollers to cause the jaws to close. A fluid actuated piston is attached to the tapered rod and is movable by the fluid alternately to assist or oppose the bias of the spring in moving the tapered rod.

Abstract: Bar stock is fed to the chuck of a machine tool by a ball chain having a rigid pusher at the end engagable with the bar stock, the ball chain being advanced by a wheel having pockets for the ball chain.

Abstract: An automatic turret lathe in which sequences are manually programmed for automatic control (both turret and cross slide) as an incident to setting up the machine, requiring neither tape nor card programs but rather the manual effort of the machinist; the lathe also incorporates a unique clutch and bearing support for the rotary turret, and the turret has a positive lock for accurately holding the index position; all essential functions and modes including feed rates and r.p.m. are visually displayed.

Abstract: An automatic turret lathe in which sequences are manually programmed for automatic control (both turret and cross slide) as an incident to setting up the machine, requiring neither tape nor card programs but rather the manual effort of the machinist; the lathe also incorporates a unique clutch and bearing support for the rotary turret, and the turret has a positive lock for accurately holding the index position; all essential functions and modes including feed rates and r.p.m. are visually displayed.

Abstract: An automatic turret lathe in which sequences are manually programmed for automatic control (both turret and cross slide) as an incident to setting up the machine, requiring neither tape nor card programs but rather the manual effort of the machinist; the lathe also incorporates a unique clutch and bearing support for the rotary turret, and the turret has a positive lock for accurately holding the index position; all essential functions and modes including feed rates and r.p.m. are visually displayed.

Abstract: A collet assembly in which actuation is resisted by a spring washer sandwiched between two wear rings, in which the collet sleeve may be pre-tensioned by a conveniently located nut and in which end thrust is adsorbed by needle bearings.