Abstract: At least one component of a spindle assembly has matched bosses disposed to the opposite sides of a transversely extending, axially offset coupling recess or key, for balance of the forces acting therealong.

Abstract: Sensors are incorporated into a multiple spindle automatic screw machine in such manner as to effectively monitor burring spindle retraction and stock supply and feeding. The lubricant/coolant level sensor is housed in a protective auxiliary chamber, and adaptations to the threading axis drive, the work spindle axis drive, and the cam axis drive improve performance of the machine while at the same time reducing its complexity.

Abstract: A multiple-spindle mechanism employs an arrangement of passages, grooves, and ducts that promotes continuous and simultaneous lubrication of all spindles. The mechanism is especially well suited for use in an automatic screw machine.

Abstract: The system includes a protective sleeve that is lowered over a flag under the weight of a carrier ring. An arrangement of cables and control means effects raising and lowering of the protective sleeve, and positions the lowered carrier in a tilted orientation to effectively close the lower end of the sleeve and thereby to afford enhanced protection for the contained flag.

Abstract: A fast-acting die head that is particularly well-suited for use with small-size workpieces employs a set of chasers, each formed as a single piece and having a nose portion that provides two force-receiving surface elements. One of the surface elements is disposed to coact with a camming ring, which is moved axially thereover to close the chasers radially upon the workpiece; the other, underlying surface element receives the force of a spring-loaded plunger, which acts to thrust the associated chaser to an open position when the closing force of the camming ring is removed.

Abstract: A collet-operating mechanism utilizes an array of wedge members for the transmission of closing force to the pressure collar. The wedge members are of flatted barrel-shaped configuration to optimally cooperate, in line contact relationships, with bearing surfaces on the pressure collar and the supporting sleeve member.

Abstract: The method, apparatus and system utilize the saddle on which the stationary head of an automatic screw machine is normally mounted, for supporting a cylindrical boring bar. Rotation and advancement of the bar on the saddle surface enables reboring of the cylindrical opening through the rotary head-mounting section of the machine, which rebored opening will be precisely coaxial with the surface of the saddle.

Abstract: A collet-operating mechanism utilizes an array of wedge members for the transmission of closing force to the pressure collar. The wedge members are uniquely configured to optimally cooperate with a convexly arcuate bearing surface on the supporting sleeve member, to effect closure with greater facility and to produce an increased level of force amplification. In addition, the wedge members are of such form as to make feasible manufacture by conventional machining operations.

Abstract: A multiple-spindle mechanism is lubricated, and is protected against the entry of foreign matter, by a mist of oil which is distributed under pressure between mutually contacting bearing surfaces, and is discharged outwardly thereof. The mechanism is especially well suited for use in an automatic screw machine, and provides the desired functions despite the axial reciprocation of the spindles that occurs therein.

Abstract: A collet-operating mechanism employs a plurality of locking pins which, under centrifugal forces generated during rotation of a machine spindle, engage an element of a slidably mounted collet-operating member to maintain the collet in closed condition.

Abstract: A free-floating mount assembly for mechanical parts includes a hooking strap for cooperatively engaging structure of a machine to limit upward displacement and rotation of the assembly. It is especially adapted for use in a mechanism by which braking force is intermittently applied to and relieved from a rotating machine member.

Abstract: A free-floating mount for mechanical parts has a finger portion for cooperatively engaging structure of a machine incorporating the mount, to limit its displacement and rotation. The mount is especially designed for use in an assembly by which braking force is intermittently applied to and relieved from a rotating machine member.

Abstract: A free-floating mount for mechanical parts has a finger portion for cooperatively engaging structure of a machine incorporating the mount, to limit its displacement and rotation. The mount is especially designed for use in an assembly by which braking force is intermittently applied to and relieved from a rotating machine member.

Abstract: An assembly is provided for intermittently applying braking force to a rotating member of a machine, and for positively effecting the release thereof, to enhance performance and efficiency. The device is purely mechanical in nature, and is particularly adapted for installation on an automatic screw machine to control chatter and backlash while optimizing power utilization.

Abstract: A collet closing mechanism utilizes an array of wedge members as the force transmitting elements, to maximize the area for contact with associated bearing surfaces. The device is highly durable, safe and effective for its intended purposes.

Abstract: A collet closing mechanism utilizes an array of wedge members as the force transmitting elements, to maximize the area for contact with associated bearing surfaces. The device is highly durable, safe and effective for its intended purposes.