Abstract: A turning device for decorating a beverage container has a frame with a plurality of rotating rods that extend through the frame. Mounting dowels are connected to an end of each rotating shafts and a continuous chain is operatively connected to the plurality of rotating members. A motor is connected to an opposite end of one rotating member.

Abstract: A structure for a chemical vapor deposition reactor desirably includes a reaction chamber having an interior, a spindle mounted in the reaction chamber, and a wafer carrier releasably mounted onto the spindle for rotation therewith. The spindle desirably has a shaft extending along a vertical rotational axis and a key projecting outwardly from the shaft. The wafer carrier preferably has a body defining oppositely-facing top and bottom surfaces and at least one wafer-holding feature configured so that a wafer can be held therein with a surface of the wafer exposed at the top surface of the body. The wafer carrier desirably further has a recess extending into the body from the bottom surface of the body and a keyway projecting outwardly from a periphery of the recess along a first transverse axis. The shaft preferably is engaged in the recess and the key preferably is engaged into the keyway.

Abstract: A chuck for a tool comprises a device for supplying a cooling and/or lubricating medium to a medium channel in a tool held in the chuck, an adjusting screw, and securing means. The adjusting screw serves as a stop for the tool held in the chuck, is arranged in the chuck, is adjustable in relation to the chuck in the axial direction of the chuck, and interacts with a pipe element. The pipe element is held rotatably in the chuck and the securing means limit an axial displacement of the pipe element at least in the direction of the adjusting screw. The pipe element and the adjusting screw are connected in a rotationally fixed but axially displaceable manner with respect to each other.

Abstract: The disclosure relates to a sample-receiving device for sample materials in ultra-high vacuum chambers, in particular for sputter coating installations.

Abstract: A failsafe workholding clamping assembly includes a base, an axially slidable draw bar and collet, and a force amplifier. A driver applies a continuous driving force to the force amplifier. The force amplifier amplifies the driving force and applies a resulting amplified force to the draw bar to bias the draw bar toward its closed position and the collet toward its gripping position. A collet opener mounts to the base and selectively applies an opening force to the draw bar to counteract the driving force and move the collet into its released position. The workholding clamping assembly holds a collet in a predetermined rotational orientation and includes a draw bar rotating mechanism to enable an operator to rotate the draw bar to threadingly engage the draw bar and a rotationally-fixed collet.

Abstract: A device for clamping a stem has a body forming a piston chamber and having an axially outwardly open hole adapted to receive the stem and a plurality of collet jaws in the hole shiftable axially by a piston between an outer releasing position with its axial outer ends radially spread and an inner holding position with the ends more closely radially juxtaposed. The stem is engageable axially in the hole between the jaws and lockable in the body in the inner holding position. A main spring urges the piston and jaws axially inward into the inner position. A cover element has an outer head and is axially shiftable relative to the piston between an extended position with the head engaged radially between the outer ends of the jaws and a retracted position with the head spaced axially inward from the outer ends of the jaws.

Abstract: A bayonet collet pickup tool includes a collet chuck having a collet portion including a bore disposed therein. A collet is held in the bore and is operable therein. A bayonet cap is mounted to an outer surface of the collet chuck proximate the bore. The bayonet cap includes a tubular socket concentric with the bore, at least one pair of diametrically opposed linear slots adjacent the socket, and a circular ledge adjacent the socket and perpendicular to the slots. A part including a shaft and at least one pair of diametrically opposed pins projecting from the shaft is receivable in the bayonet cap and the bore. Rotating the collet chuck while the pins are level with the ledge and then closing the collet releasably retains the part in the tool.

Abstract: A force limiting workpiece holding device for holding a workpiece in a workpiece processing assembly having a spindle and a closer that applies a force, comprises a workpiece holder slidably mounted to the spindle. The workpiece holder includes a plurality of circumferentially-spaced gripping segments that are movable between expanded and contracted positions to grip and release a workpiece. A force limiting coupling structure includes a biasing structure having a spring force. The coupling structure is operatively mountable between the workpiece holder and the closer such that a force applied by the closer to move the gripping segments of the workpiece holder between the expanded and contracted positions is transferred to the workpiece holder through the coupling structure and the biasing structure thereof, whereby a resultant force being applied to the workpiece holder by the closer is limited to the spring force of the biasing structure.

Abstract: A chuck assembly includes a housing formed with a hydraulic fluid inlet, a sleeve mounted in the housing and formed with an annular groove, a shaft mounted rotatably in the sleeve and formed with a fluid passage, a chuck unit mounted in the shaft, a piston subdividing a chamber between the chuck unit and the shaft into first and second compartments, and a cooling mechanism having an air inlet formed in the housing, and an air channel formed in the sleeve and in fluid communication with the air inlet and the annular groove.

Abstract: A pneumatic collet control system has a pneumatic cylinder subassembly with an internal shuttle subassembly with a central cylinder portion having an internal surface and a plurality of passageway holes on opposite ends of the cylinder communicating with the internal surface. The internal shuttle subassembly having a ram and a piston. A collet arm coupler is threadedly received into the external end of the ram. A valve body subassembly has a pair of valves and a pair of passageways for the valves for allowing and controlling the flow of actuating fluid into the cylinder with the passageways aligning with and coupling to the passageway holes of the cylinder. A central actuating fluid passageway connects with the two valves. A rotatable flow direction arm with a pivotable operator controlled handle controls the flow of actuating fluid into the cylinder.

Abstract: A clamping module has a retractable drawbar and pivoting expansion members. The expansion members are pivotable from a first position having an effective diameter which is less than the minimum diameter of the workpiece hole through which the drawbar and expansion members are extended and a second position engaging the workpiece so as to transmit an axial force from the drawbar through the expansion members to the workpiece sufficient to secure the workpiece.

Abstract: A collet chuck includes a tubular body and a rotating shaft assembly that is journalled within the tubular body and that defines a frustoconical recess therewithin. A belt pulley is sleeved fixedly on the rotating shaft assembly. A collet is disposed operably within the recess in the rotating shaft assembly, and is adapted to hold a rod-shaped workpiece therewithin. A movable member is mounted axially and movably within the tubular body for movement in tightening and loosening directions. A front oil chamber is formed in the tubular body, and is located immediately in front of the movable member. A rear oil chamber is formed in the tubular body, and is located immediately behind the movable member. A first oil passage is formed in the tubular body and is in fluid communication with the front oil chamber so that hydraulic oil can be fed thereinto, thereby moving the movable member within the tubular body in the tightening direction so as to compress the collet.

Abstract: A collet assembly coupled to a rotary-linear drive unit allows easily placement of a susceptor shaft within a collet of the collet assembly when the collet assembly is in a first position. After the susceptor shaft is placed into the collet, the collet assembly is retracted to a second position by a spring force acting on a collet draw bar that is coupled to the collet. As the collet assembly is retracted by the spring force, the collet is closed about the susceptor shaft by the interaction between the collet and a collet spindle in which the collet is moveably mounted. As the collet closes, the collet assembly exerts a pressure about a circumferential surface of a susceptor shaft that in turn holds the susceptor shaft firmly in place within the collet, i.e., holds the susceptor shaft stationary within the collet. Consequently, when the susceptor shaft is rotated by the rotary-linear drive unit, there is no wobble associated with the rotary movement of the susceptor shaft.

Abstract: An assembly for holding a cylindrical workpiece for grinding, including a support frame having at least one support arm extending to initially hold the workpiece and operable to disengage from the workpiece during grinding, a tailstock slidably mounted on the support frame and operable to engage the proximal end of the workpiece, and a collet assembly mounted on the support frame and configured to receive and engage the distal end of the workpiece. The collet assembly includes a housing having an open proximal end, an open distal end, and an internal channel with an inner diameter. The internal channel extends along the length of the housing from the open proximal end to the open distal end and is adapted to slidingly receive a spindle. The spindle has a proximal end portion and a distal end portion. The proximal end portion includes a holding portion and the distal end extends from the distal end of the housing and is engagable with a drive mechanism.

Abstract: A plunger type rotary chuck assembly includes a main seat in which bearings are mounted for rotatably supporting a main shaft. An inner periphery of an axial hole of the main seat includes a number of fluid passages A number of piston chambers are provided around and communicated with the axial hole of the main seat. Piston rods are mounted in the piston chambers and coupled to discs that urge clutches or a follower ring to move a spring chuck. The spring chuck includes an outer inclined surface that may disengage from or engage with an inner inclined surface of the main shaft or of the follower ring, thereby allowing the spring chuck to release or hold a work piece to be processed.