Abstract: Disclosed herein is an electrical component comprising a segment having a diameter in the range of about 1 micrometers to about 10 cm, the segment comprising a plurality of non-metallic, resistive fibers in a non-metallic binder. The segment is precisely trimmed to impart to the segment an electrical resistance within 1% of the desired resistance value. A manufacturing system and methods of manufacturing components having precise specifications also are disclosed.

Abstract: In a minimally invasive surgical system, a hand tracking system tracks a location of a sensor element mounted on part of a human hand. A system control parameter is generated based on the location of the part of the human hand. Operation of the minimally invasive surgical system is controlled using the system control parameter. Thus, the minimally invasive surgical system includes a hand tracking system. The hand tracking system tracks a location of part of a human hand. A controller coupled to the hand tracking system converts the location to a system control parameter, and injects into the minimally invasive surgical system a command based on the system control parameter.

Abstract: According to an aspect of an embodiment, there is provided a part-delivery apparatus which transports a part to a designated part-delivery position by drawing the part onto a head by suction pressure at a designated part-suction position, and which releases the part at the part-delivery position by stopping application of the suction pressure. The apparatus includes: a compliance mechanism for allowing movement of the head in a horizontal plane; an upper-side positioning unit for positioning the head in the part-suction position by responding to an upward movement of the head; and a lower-side positioning unit for positioning the head in the part-delivery position by responding to the downward movement of the head.

Abstract: A conductive member supply apparatus including a reservoir portion containing an internal space in which the conductive members are stored and a first gas-passing aperture communicating with the internal space, an alignment portion including an alignment path in which the conductive members are arranged in a row and which communicates with the internal space, and a second gas-passing aperture communicating with the alignment path, a stopper for closing/opening the alignment path, first gas supply unit which supplies gas to the alignment path from the first gas-passing aperture and through the internal space, second gas supply unit which supplies gas to the aligning direction of the conductive members from the second gas-passing aperture, and control unit which activates the first gas supply unit to supply gas in a state where the stopper is closed, wherein a distance between the second gas-passing aperture and the stopper along a direction of the alignment is substantially within a range of from a dimension o

Abstract: A plate-form member conveying apparatus that includes an upper claw and a lower claw for clamping a plate-form member in between from above and below and conveying the plate-form member, in which each of the upper claw and the lower claw is formed by a clamping plate made of an elastic material and brought into contact with an upper or lower surface of the plate-form member, and a claw holding plate and a claw counter plate that sandwich the clamping plate; and the clamping plate and claw holding plate are detachably fastened by bolts to the claw counter plate.

Abstract: A semi-automated load balancing mechanism includes a load balancing arm supported for vertical swingable movement and a second arm. The second arm is mounted on a distal end of the load balancing arm for horizontal movement. The second arm has a part holder on a distal end thereof for receiving and supporting a load thereon. An actuator is disconnectably coupled to the load balancing arm for moving it while allowing manual movement independent of the actuator.

Abstract: A pneumatic bar feeding apparatus for advancing a length of bar stock to a CNC center machine for processing and including a pair of concentric tubular members which are housed in a housing supported by a pair of vertical spaced apart support stands. The inner tubular member is spaced from the interior surface of the outer tubular member by at least three bearing and bushing devices which are located at three separate locations. A rear end of the inner tubular member is airtightly sealed so that air pressure does not leak out. An actuating assembly is movably installed within the inner tubular member and includes a slidable piston, a rod connected to the piston and a coil spring which surrounds the rod and biasing the rod from entering into a bar carrier which is also movably installed within the inner tubular member. The bar carrier comprises a plurality of step-down interior portions for accommodating a plurality of different size diameters of the bar stock.

Abstract: A cleaving tool provides pressurized gas to the edge of a substrate to cleave the substrate at a selected interface. A substrate, such as a bonded substrate, is loaded into the cleaving tool, and two halves of the tool are brought together to apply a selected pressure to the substrate. A compliant pad of selected elastic resistance provides support to the substrate while allowing the substrate to expand during the cleaving process. Bringing the two halves of the tool together also compresses an edge seal against the perimeter of the substrate. A thin tube connected to a high-pressure gas source extends through the edge seal and provides a burst of gas to separate the substrate into at least two sheets. In a further embodiment, the perimeter of the substrate is struck with an edge prior to applying the gas pressure.

Abstract: A device for effecting at least one of a loading and unloading operation of a workpiece with respect to a machine tool. The device includes a base adapted to be mounted adjacent the machine tool and a tubular member. The tubular member includes an inner chamber and an elongate opening communicating with the inner chamber for receiving the workpiece. The inner chamber has one end adapted to communicate with a spindle of the machine tool and the tubular member is mounted for rotation with respect to the base. A sealing member is mounted for selective removal and sealing engagement with respect to the elongate opening and a source of pressurized air communicates with the chamber for moving the workpiece in at least one direction within the chamber when the sealing member is in sealing engagement around the elongate opening.

Abstract: A bar loader for feeding a bar to a bar machining apparatus comprises a feeding rod for moving the bar and a guide rail for guiding the bar. The guide rail includes a guide rail body with an upper opening for receiving the bar and a lid member for covering the upper opening of the guide rail body and is operable to be opened and closed. A bar passageway formed between the guide rail body and the lid member has an inner wall surface. A plurality of oil grooves are formed on the inner wall surface which extend in a circumferential direction and arranged at a distance from each other in a longitudinal direction of the guide rail. It also has oil supplying system for supplying oil into the bar passageway.

Abstract: An apparatus for feeding and engaging bar stock into an automatic screw machine having at least one clamp, at least one linear actuator, an apparatus for feeding material into the clamps, and a mechanism for facilitating opening and closing the clamps. The clamps include a base portion, pivotally mounted first and second clamping members, and a cam member extending through the base portion which engages the first and second clamping members. The clamps are mounted to a tubular support which rotates in conjunction with the spindle carrier of the automatic screw machine. The mechanism for facilitating opening and closing of the clamps engages an end portion of the at least one linear actuator to displace the cam member. The cam member disengages the clamping members causing the clamping members to open such that the bar stock can be fed into the clamping members and closed thereafter in a positive locking arrangement.

Abstract: A simple wire probe is positioned between work stations of a multi-spindle automatic screw machine so that, when the spindles of the machine are indexed, the probe is contacted by the distal end of a properly-sized workpiece and a signal is sent to a conventional programmable logic controller ("PLC"). At the initiation of each cyclical indexing of the machine's spindles, an electronic timing "window" is opened in the PLC and, so long as the signal is received from the probe while the timing window is open, the PLC permits the machine's cyclical operations to continue. If, however, no signal is received during the preset time interval, indicating a "short part", the PLC is programmed to stop the machine drive and to provide a sensible indication (e.g., a flashing light) to call to the attention of the machine operator. The location of the probe does not limit the normal use or operation of any tool at any work station of the machine.

Abstract: A bar feeding device for multi-spindle machine tools includes a rotating drum provided with a plurality of guides for the bars, which longitudinally extend in different angular positions on the outer surface of the drum. Bar pushing members slidingly movable along the guides are connected to a control system comprising a set of peripheral gears circumferentially arranged at one end, and supported to rotate with the drum, coplanarly around a central pinion gear connected to a drive motor. The pinion gear is tangentially arranged in an offset angular position to selectively engage each peripheral gear over a predetermined arch shaped path by rotation of the drum.

Abstract: A bar feeder support has two longitudinally spaced swivel mounts for supporting longitudinally spaced portions of a cylindrical body for both sliding and swivel movement. The cylindrical body supports a feed tube for feeding a bar stock to a lathe. The front swivel mount, which is closest to the lathe, also has a clamp arrangement for clamping the cylindrical body against movement. The swivel mounts allow the cylindrical body to swivel sufficiently to slide from a position in which its longitudinal axis is aligned with an axis of a spindle of the lathe and an access position in which a new bar stock may be disposed in the feed tube, the feed tube may be removed from the cylindrical body, and another feed tube may be loaded into the cylindrical body.

Abstract: Automatic apparatus for the feeding of bar-shaped stock to a machine tool, comprising an elongated receiving box which extends in feed direction, has a guide passage open at both ends for receiving a new stock bar and is formed by two receiving channels, an actuating device for the opening and closing of the receiving box as well as a pushing-in device for pushing a new stock bar in feed direction into the machine tool, wherein for simplifying the construction a clamping device is associated with the receiving box for securing a new stock bar in place in the receiving box and the latter is guided for displacement in feed direction and is displaceable back and forth in feed direction by the pushing-in device.

Abstract: A bar stock feeder for feeding bar stock to a multiple spindle lathe is disclosed. The bar stock feeder has several guide tubes, each for holding a piece of stock. The tubes are flooded with hydraulic fluid to provide a film of fluid to support the pieces of stock. Each tube contains a piston for advancing the pieces of stock towards the lathe. The tubes have a pivoting part which allows the operator to separate the tubes for reloading. The pistons are retracted into the pivoting part of the tubes prior to separation such that they are not in the way during reloading.

Abstract: A loading and unloading mechanism including a workpiece receiving and discharging chamber and pressurized air/vacuum source operatively connected to the chamber. The chamber is tubular and adapted to be connected to the spindle of a lathe in a coaxial relationship. Pressurized air is used to force the workpiece into the lathe spindle and vacuum pressure is used to draw the workpiece out of the lathe and back into the tubular chamber. The device may be modified to facilitate vacuum unloading only in the case in which the lathe is manually loaded. A proximity switch is provided for detecting the passage of a finished workpiece out of the lathe and back into the chamber whereupon the chamber is opened and the workpiece is discharged.

Abstract: Apparatus for an automatic bar feeder is given which provides fluid to the space between the barstock and guide tube having a pump integral to the piston pusher to control pressure on the barstock being fed to the machine tool.

Abstract: A machine tool having a stock holding and supporting grip which is spaced from the stock clamping chuck and which provides an equally applied gripping pressure at circumferentially spaced locations about the stock, preferably applied by hydraulic gripping elements. The grip accommodates eccentricities and deviations in the stock, and prevents increase in such eccentricities during rotation of the stock during machining which would otherwise arise due to centrified forces acting on the protruding tail of the stock, thus preventing bowing and whipping of the unworked tail and of the stock while machining.

Abstract: A pressure stabilizing apparatus is given which is capable of storing and supplying the volume of hydraulic fluid needed for rapid advances as well as accepting displaced hydraulic fluid required for rapid retractions in a barfeed apparatus. This pressure stabilizing apparatus or surge-accumulator device demonstrates the advantage of eliminating excessive force, which could damage the headstock, cause increased vibration and noise, and also prevents loss of contact with the bar end, all of which limit the speed of the spindle, and reduce productivity.

Abstract: A machine for automatically loading elongated bars into an automatic screw machine. Each bar initially is advanced at a rapid rate and with relatively low force by a first fluid-operated actuator. When the leading end of the bar reaches the feed finger of the screw machine, a second fluid-operated actuator advances the bar at a slower speed and with relatively high force. A measuring device measures the distance through which the bar is advanced by the second actuator and automatically stops the advance when the leading end of the bar is located in a predetermined position.

Abstract: A feeding system for strip material for transporting a strip over a conveying distance of limited length, particularly in treatment plants for metal strip. The feeding system includes a transfer carriage which is guided on a rail guide. The transfer carriage has a chamber for receiving the strip and is provided with a device for temporarily holding the beginning of the strip. The transfer carriage has at both sides thereof a reversible linear motor each for driving the transfer carriage over the conveying distance.

Abstract: A bar feeding and handling machine. A frame bar is mounted in parallelism with the axis of a machine chuck. The chuck is adapted to support a workpiece. Link members are pivotally attached to the frame bar adjacent to opposite ends thereof. A pneumatic cylinder is pivotally attached to the link members to move between an advanced position aligned with the machine chuck and a retracted position. A pusher head mounted on a cylinder rod of the cylinder can engage the workpiece when in advanced position. The cylinder rod and the head are advanced to advance the workpiece. Another workpiece can be loaded into the chuck when the cylinder is in retracted position.

Abstract: An apparatus and process for feeding panels to a panel cutting saw for conveying a stack of panels to a panel cutting saw so that the edges of the panels in the stack are aligned with respect to the cutting plane of the saw. An elevator platform supports a stack of panels. A panel conveyer transfers one or more panels at a time over a transfer platform to a panel feed platform. A repositionable barrier may be positioned between the saw and the panel feed platform. An alignment device aligns the panels of the stack against the barrier to produce a stack with at least one side in which the edges of the panels are aligned, prior to feeding of the stack into the panel cutting saw.

Abstract: A bar feed apparatus for supplying elongated bar stock to the headstock of an automatic lathe. An elongated guide tube receives the stock and includes a hydraulic piston that controllably advances the stock toward the lathe. For cushioning the rotating bar stock against vibration within the tube, controlled quantities of hydraulic fluid is forced longitudinally into an annular clearance about the piston to and about the bar stock. A flexible seal secured downstream of the piston effects collapse during the forward stoke of the piston and effects a vacuum seal during a vacuum induced return stoke of the piston.

Abstract: A handling unit for axially transporting elongated objects from a first location to a second location such as from a feed table into a machining unit where machining operations are to be performed upon the object. A feed table, or corresponding depository, supports a plurality of the objects to be transported in parallel relationship, and provision is made to advance the objects so that a single object is placed in a pickup location. An axially movable push rod then engages the end of the object when desired to accomplish the axial transport. This push rod is operated by a rod-less cylinder such that the cylinder and the push rod are in parallel alignment thereby reducing the length of the device to the length of the cylinder. Various embodiments are described, together with that of an "unloader" to receive the objects after machining and place them on a receiving table or the like.

Abstract: A high speed, overhead loader mechanism is disclosed, for use in connection with an automatic lathe. A simplified, versatile basic vertical positioning mechanism is provided, which mounts on the spindle housing of the lathe and accommodates a wide variety of customized loading fixtures, for parts of various sizes and shapes. Also disclosed are unique forms of part feeders and ejectors for supply and discharge of parts to and from an automatic lathe.

Abstract: A chip separation and alignment apparatus capable of accurately and readily accomplishing separation and alignment of chips with a simple construction. The apparatus includes a chip separation and alignment section and a chip separation section. The chip separation and alignment section includes a chip cassette formed into a flat rectangular box-like shape, in which are formed a chip storage chamber, a chip alignment hole provided with an upper end opening through which the chip alignment hole is communicated with a lower portion of the chip storage chamber and a lower end opening, and at least one air ejection port arranged near the upper end opening to intermittently eject air therethrough. The chip separation section is arranged at the lower end opening of the chip alignment hole to separate chips one by one and to successively supply the separated chips to a subsequent step.

Abstract: The device comprises a sectional carrier of closed cross section with a circular bed, a base and channels of distribution and return of oil. A guiding element comprising at least one guiding tube enclosing a bar stock to be machined and a push-piston is removably secured on the bed. The distribution channel communicates through radial openings with the guiding element for delivering to the latter oil under pressure which creates a hydrodynamic bearing supporting the bar stock when the latter is set into rotation by the head stock of the lathe. The sectional carrier has a great rigidity and stability which permits very high speeds of rotation of the bar stock to be machined. The return of oil by closed channels of the sectional carrier is protected against external contamination by impurities or dust.

Abstract: A pneumatically operated stop for advanced workpiece comprises a pneumatic cylinder with a displaceable piston rod on which a stop is secured. A limit stop coacting with the extended piston rod defines the setpoint position of the stop. A precision limit switch for sensing the setpoint position of the stop generates a command signal when the stop moves away from its setpoint position. This signal controls a valve which is connected with the pneumatic cylinder. This valve connects the pneumatic cylinder in an unpressurized manner with the ambient atmosphere when the stop is occupying the setpoint position and no workpiece is resting against the stop. Once the stop has been displaced from its setpoint position by an advanced workpiece, pressure is applied to the cylinder by this valve in order to return the stop together with the workpiece to the setpoint position, and this pressure is maintained for a preselected amount of time by the valve.

Abstract: An automated workpiece handling system for use with a machine tool having a plurality of workstations spaced along a longitudinally movable, elongate workpiece comprising a first cart for transporting workpieces to one end of the tooling machine, adjacent a first workstation, a first feeder mechanism on the machine tool for drawing workpieces from the first cart and delivering the workpieces onto the worktable, a mechanism on the worktable including the worktable itself for moving the workpieces along the worktable from a position adjacent the first workstation to a position adjacent a final workstation, a second cart for transporting workpieces from the other end of the machine tool, adjacent the final workstation, and a second feeder mechanism on the machine tool for drawing workpieces from the worktable and delivering the workpieces onto the second cart.

Abstract: A method is disclosed wherein, to guide a billet into a pressure-piercing mill, the same pusher is utilized as is normally provided to force the billet through the nip of the mill rolls.

Abstract: Guide-bar device for a multi-spindle lathe having a barrel indexed by the lathe at each machining operation and secured to a rear part of the lathe. The barrel comprises a central shaft and a plurality of guiding tubes removably supported by a means of disks provided on the central shaft, each guiding tube enclosing a bar to be machined. The bar rotates within the guiding tube in a fluid and is supported by and advanced under the influence of a piston which bears against the rear part of the bar. A fluid distributor is secured to the multi-spindle lathe at the rear part of the barrel. The fluid distributor is connected to at least one source of hydraulic pressure for distributing fluid under pressure into distributing grooves which are connected to a rear part of the guiding tubes for causing the piston to advance in said guiding tube and to a plurality of pipes connected to said guiding tubes for causing a radial injection of the fluid between said bar to be machined and the guiding tube thereof.

Abstract: A hollow spindle (10) comprises a collet (20) at one end and behind the same and spaced from each other two guide sleeves (50,52) for the work bar (W). The rear guide sleeve (52) being the most remote from the collet (20) is axially displaceable in a direction toward the collet (20) against the resistance of a spring (58) and has an abutment face (82) remote from the collet (20) for a stock feeder (70). Upon advanced use of the work bar (W) the stock feeder (70) hits the abutment face (82) of the rear guide sleeve (52), pushing the same forwardly as the work bar (W) continues to be used up and advanced. By virtue of this arrangement the work bar (W) is guided in vibrationless manner and also the stock feeder (70) is kept largely without vibrating by its abutment against the rear guide sleeve (52).

Abstract: The device comprises a distributor with switching valves and individual circuits of hydraulic fluid under pressure and of vacuum, the switching valves permitting to connect the guiding tubes either to the circuit of fluid under pressure or to the circuit of vacuum. The guiding tube which encloses a remnant of a bar stock in which a last piece is machined is set under vacuum for retracting the feeding piston of this guiding tube toward the rear part of the device in an extension tube during the indexing of the barrel at the time of machining the last piece. This permits to supress the unproductive time normally necessary for retracting the feeding piston of the guiding tube in which a new bar stock to be machined must be introduced.

Abstract: A process for loading a lathe in which a new bar to be machined is introduced laterally into a guide-bar device in form of a tube during the machining of a last piece at the end of a preceding bar. The new bar causes the ejection of the remnant of the preceding bar by pushing against the rear of the preceding bar. A device for loading a lathe with bars to be machined comprises a guide-bar device in form of a tube having two parts which can be opened for laterally introducing a new bar to be machined into the tube. The bar in the tube is fed by a hydraulically controlled push-piston. Pressure pistons press the two parts of the tube against each other in order to ensure a fluid tight seal. Return pistons are utilized radially move the upper part of the tube at the time of loading.

Abstract: A device for withdrawing from a bar pusher and thereafter unloading the crop-ends of metal bars in a bar feeding apparatus for a multi-spindle lathe, the device being suitable also for placing a new bar on the bar pusher, is disclosed; the device of the invention is comprised essentially of a pair of movable jaws which by a turning movement close onto the crop-end of a metal bar and lock the crop-end therebetween; the crop-end is the residual part of the lathe machining of the metal bar; thereafter the jaws accomplish a translation movement to detach the crop-end from a bar pusher which formerly caused the bar forwarding in the feeding apparatus of the lathe; the jaws thereafter open slowly dropping the crop-end in a proper unloading zone; finally the jaws close onto a new metal bar to be machined and, by a further translation movement in the direction opposite to the former one, perform the insertion of the new metal bar end into the bar pusher.

Abstract: A machine for supporting bar feed stock in a turning tool. The machine includes a main tube having a cylindrical inner wall and an intermediate guide tube rotatably mounted inside the main tube. The intermediate guide tube has a cylindrical outer wall and an interior elongated opening. The interior of the intermediate guide tube receives the workpiece with an end portion of the workpiece extending into a spindle of the turning tool and with the interior opening fitting closely around the bar feed stock. The intermediate guide tube is connected to the spindle to rotate therewith and with the workpiece. Liquid in the main tube surrounds the intermediate guide tube. The intermediate guide tube tends to become centered in the main tube as the spindle turns.

Abstract: A bar stock guiding device for use with automatic lathes comprises two cushions which have the shape of semicylindrical annuli. The cushions are applied against each other in a recess of a freely rotatable sleeve. This sleeve is located between the lathe and a tube of the guiding device which contains the bar of stock fed to the lathe. The sleeve normally rotates with the bar of stock, because the opening appearing between the cushions is adjusted with minimal small free play only to avoid whipping of the bar in the cushions and the propagation of vibrations to the stock bar part extending in the working area of the tools. When the pusher passes through the sleeve, it ejects the cushions out of the sleeve recess. Before this ejection occurs, a braking mechanism reduces the speed of rotation of the sleeve to a substantial extent.

Abstract: Feed apparatus for automatic lathes comprises a central section bar surrounded by one or more peripheral section bars, longitudinal grooves of arcuate cross-section in all the section bars matching and cooperating with each other to form longitudinal passages for guiding bar stock when the section bars are assembled. Linings may be placed in these passages to form tubes for guiding the bar stock, these tubes being very accurately positioned relative to the outer surface of the apparatus, which may be an outer tube into which the assembly of section bars is inserted. Hence the stock-guiding tubes can be more precisely positioned, and the apparatus can be produced at low cost because the section bars are inexpensive and assembly is simple. The apparatus is particularly suitable for feeding lathes on which objects made from bar stock of very different diameters has to be machined.

Abstract: The disclosure embraces a method of and apparatus for mechanically stripping linear material such as strands or groups of glass filaments or fibers from plastic forming tubes wherein the packages are defective, incomplete, or "break-out" packages. A defective, incomplete or "break-out" package is disposed at a stripping station at which a tube deforming or collapsing member is engaged with a forming tube package to collapse the package so that the strand on the collapsed forming tube is loose or is a loose hank. The collapsed or deformed forming tube is withdrawn from the stripping station and a stripper member is engaged with the loose strand or hank of strand which is stripped from the forming tube as the forming tube is moved away from the stripping station.

Abstract: A method and apparatus for automatic rear loading of mandrel type tube benders. The bender includes a base, bending head at the forward end of the base, carriage for positioning a tube with respect to the bending head, and a mandrel rod supporting on its front end near the bending head a mandrel. The improvement includes the use of two separate clamps for gripping the mandrel rod with respect to the base, one clamp being located near the rear end of the mandrel rod and the other clamp at an intermediate point on the mandrel rod spaced from the first clamp a distance at least equal to the length of the tubes to be bent. The clamps selectively grasp the mandrel rod, at least one clamp grasping the rod at any given time, to allow a tube to be loaded onto the mandrel rod while another tube is being bent.

Abstract: A hydraulically operated bar stock feeder having a hydraulic circuit in which a hydraulic pump drives a hydraulic motor which in turn operates the bar feeder carriage. The hydraulic pump operates a hydraulic cylinder with a designed live center cup attached to the end of the cylinder rod. The hydraulic circuit has a control valve with hydraulic detent which will lock in a forward or backward position. While the control valve is locked in forward position, fluid is allowed to go to a relief valve at the hydraulic motor on the carriage. The relief valve reduces the pressure going to hydraulic motor and deceleration valve. When the carriage reaches the end of track the deceleration valve is depressed, which, through another relief valve at a lower pressure starts the cylinder rod moving outward. Both the cylinder and carriage motor are able to set (not move) under pressure and will start automatically when the lathe chuck is open.

Abstract: A bar stock feeder has a pneumatic circuit with positive feed and vacuum circuits and uses an air pump to provide vacuum from a pressure line, and is entirely mounted within a single base pedestal to present a readily operable control panel.

Abstract: A bar feed mechanism for a machine tool comprising at least one cylindrical tube adapted to be aligned with a spindle of the machine tool, a piston movable in the tube, a shaft rotatably secured to the piston, a centering sleeve rotatably mounted on the shaft and axially movable thereon, center elements secured to the shaft at the end remote from the piston, a bushing at the end of the tube adjacent the machine tool having an orifice which permits passage of the center means therethrough but retains the centering sleeve, an hydraulic pressure inlet for admitting pressure fluid behind the piston to cause movement thereof in a feeding direction, apparatus to admit pressure fluid between the piston and centering sleeve, and pressure relief apparatus to permit discharge of pressure fluid from the tube between the piston and centering sleeve when the sleeve abuts the bushing, thereby permitting continued movement of the piston, shaft and center elements in the feeding direction.

Abstract: A device for the feeding of material bars for processing machines, with which in a tube the rearward end of the bar is moved in the direction of the processing machine by a piston guided in the tube and loaded by a pressurizing medium. A loading bellows loaded by the pressurizing medium is located behind the piston and a tubular diaphragm, loaded by the pressurizing medium, is located in the tube, supported in a rotatable manner.

Abstract: A bar stock feeder has both horizontal and vertical adjustment of the carrier standards and a quick acting locking and pneumatic connecting assembly for engaging the bar stock tube assembly which is supported and aligned on the standard by a retainer assembly.

Abstract: A hydraulic positioning system for precisely and rapidly positioning objects of the type likely to impose impact loadings on the system. The system is particularly adaptable for use in sawmill setworks for precisely positioning logs preparatory to sawing thereof. High impact loads are compensated for by special rapid-acting shock-absorbing hydraulic relief circuitry responsive to differences between impact overpressure and system pressure.

Abstract: A feeding system for barstock on turning machines with a support extending in the feeding direction and with a plurality of holders for holding and slidably guiding a material bar. The holders are slidably guided in the feeding direction on the support and are interconnected by coupling means provided by intersecting links which are pivoted relative to each other and to the holders such that the latter are maintained parallel to each other and can be pushed together and moved apart in the longitudinal direction of the material bar.

Abstract: A bar stock feed apparatus for a machine tool has a bar stock support tube for alignment, in use with a workpiece carrier of the machine tool. A fluid pressure-actuated feed means in the form of a pusher tube slides within the tube and is driven by a piston to feed the bar when desired. Fluid is introduced into the support tube forwardly of the piston, and independently of the fluid supplied to the piston, to cushion the bar stock within the tube 15 and thereby minimize undesirable noise during operation.