Abstract: A clamp for optical fiber couplers manufacturing apparatus comprises a slotted member having a slot into which optical fibers are inserted and having an opening outwardly winder from the slot so that the optical fibers are introduced into the slot, and a pushing member movably disposed adjacent the slot for pushing the optical fibers through the opening into the slot, wherein the slotted member is away from the pushing member when the fibers are not clamped, and the slotted member is fixed at a position where the slotted member clamps the fibers.

Abstract: A clamp apparatus used for machining a workpiece, such as a structural beam, includes a stationary clamp apparatus and a movable clamp apparatus. The stationary clamp apparatus clamps onto a first side or flange of the workpiece, and the movable clamp apparatus clamps onto another, generally opposite side of the workpiece. The movable clamp apparatus is capable of shifting position in the direction of the stationary clamp means. A pair of fastening mechanisms are positionably secured to the clamp apparatuses, for securing and positioning the workpiece with respect to the clamp apparatuses.

Abstract: A woodworking planer having a main frame, a carriage slidingly mounted on the main frame to provide alternating longitudinal movement, a workpiece locking device also provided on the main frame for releasingly securing a workpiece in a fixed position relative to the longitudinal movement of the carriage, and cutting members provided on the carriage to plane four longitudinal sides of the workpiece simultaneously. The cutting members include horizontal cutter heads simultaneously moveable vertically towards and away from each other, and vertical cutter heads individually moveable horizontally towards and away from each other in response to predetermined shapes of a copying model co-acting with copying parts connected to the vertical cutter heads. The copying parts include spring biased rollers for following the predetermined shapes of the copying model. A feeder arrangement receives the workpieces for individually feeding the workpieces one at a time to the workpiece locking device.

Abstract: A portable vise is disclosed including a beam along which a hydraulic cylinder assembly is positionable to adapt the vise to a wide range of work pieces. The hydraulic cylinder assembly includes a carrier slidably engaged with a beam flange and which is lockably engageable to the beam during a clamping operation. A lock or stop includes a pair of leg members insertable within a selected pair of beam defined apertures. The cylinder assembly includes a lever operated pump with a self-contained fluid reservoir. The beam is supported on a turntable in turn carried by a pedestal having a wheel equipped base. For clamping articles with curved surfaces, a pair of supplemental jaw plates are provided, each having an irregular clamping surface to assure positive engagement with a clamped article.

Abstract: A vacuum-operated clamp is provided, the clamp comprising a vacuum cylinder composed of a cylinder body, a cylinder piston having a piston rod and a resilient and sealing piston head or O-rings, a single pair of toothed jaws which are mounted on the piston rod and on the cylinder body, and a control valve mounted in the end of the cylinder body, whereby the stroke and the clamping force of the clamp may be controlled. The clamp body may be fabricated of plastic or metal. The clamp may further include a finger hole in one jaw in order to aid in operating the clamp. The vacuum-operated clamp disclosed requires no external source of vacuum.

Abstract: A saw blade clamp unit for holding saw blade in a manner to permit machining of side faces of hard material tips provided upon the teeth of the saw blades. The saw blade clamp unit clamps a saw blade tooth adjacent to a saw blade tooth tip being machined, holding the saw blade. The clamping mechanism of the clamp unit is arranged to form a lateral reference position for the tooth to be machined, with the tooth being set to the required grinding position during the clamping operation.

Abstract: An apparatus for precisely forming curved surfaces on a wooden workpiece in which the workpiece is automatically centered on a work table which is controllably movable inwardly and outwardly relative to a rotating cutter. The rotating cutter is slidably mounted within a supporting frame so that the cutter can be controllably moved past the workpiece as the workpiece is moved inwardly and outwardly relative to the cutter. A template and a template follower precisely controls the movement of the table and the workpiece relative to the cutter to produce precisely formed curved surfaces on the workpiece.

Abstract: A container holder which can be used with a variety of containers when positioning them in a container processing step is disclosed. Pairs of container holding members are disposed within a holder body which receives a container. One pair of holding members are disposed opposite to each other on one of orthogonal lines defined within a holder body. The holding members are urged from the outside to be movable toward the center, and are also retractable toward the outside of the holder body. All of the container holding members are once returned to a start position (where they have been retracted to their full extent), and are then driven to advance to a position where they conform to a container model which is inserted centrally within the holder body.

Abstract: A clamping element (4) for the clamping of workpieces on a clamping surface (1b) with receiving recesses distributed over its surface in accordance with a predetermined division (Ra) has on its clamping body at least two attachment openings (9) spaced from each other by the division spacing (a) and at least two clamping holes (10) which are in each case distributed along at least one circle around a longitudinal axis (8) of the clamping element (4) in order to achieve high reproducibility with a great variety of possible uses.

Abstract: A Dual Automated Clamp Carrier provides an apparatus which enables three different activities to be conducted simultaneously at three different levels of the apparatus. The upper level is the location at which clamps previously tightened for gluing panels of wood are untightened automatically. The mid level is the location where the completed panels are removed from the clamps from the loosened clamps and panel segments coated with moist glue are positioned in the clamp for clamping and processing. The lower level is the location where the clamps are automatically tightened. Appropriate support elements for the upper and lower levels allow a carriage including a powered clamp tightener/loosener wrench to be automatically positioned to engage each of the clamps to loosen or tighten the clamps as necessary. The lower carriage also includes an apparatus to flatten the panel segments in each clamp as the clamps are tightened.

Abstract: A clamp arm for attachment to the plunger of a clamping cylinder has a body with a central opening for receiving the plunger and a working arm portion extending outwardly from the opening. The body has a radial slot extending from the central opening and a bore in the body that extends transversely through the slot. One portion of the bore is threaded to receive a headed bolt to draw the sides of the slot together to lock the body on the plunger. The body is axially restrained on the plunger by means of a ring received in a counter bore above the transverse bore for the headed bolt. The ring is received in a circumferential groove in the plunger. Alternatively, the headed bolt that is used to draw the sides of the slot together engages a circumferential groove in the plunger.

Abstract: An apparatus for installing wooden deck planks on a supporting frame of joists has an actuator mounted on a base plate with an output shaft movable between an open position and a closed position. A control device is mounted on the frame for selectively controlling the actuator to move the output shaft. A fixed angle clamp is mounted on the base plate and has a leg for engaging an edge of a first deck plank, a sliding angle clamp is attached to the output shaft and has a leg for engaging an edge of a second deck plank, and a spacer plate is slidably mounted on the base plate between the clamps and has a predetermined thickness corresponding to a desired spacing between adjacent deck planks.

Abstract: A clamping first piston (11) is inserted into a locking second piston (17) inserted into a cylinder bore (9) of a housing (4). A clamping member (7) is fixedly secured to the left portion of the first piston (11). A clamping first actuation chamber (21) is formed on the right side of both those pistons (11)(17), and an enclamping second actuation chamber (25) is formed on the left siede of the second piston (17). A wedgy space (30) is formed between the outer circumferential surface of the first piston (11) and the cylinder bore (9). A locking wedge (31) is inserted into the wedgy space (30) from right side and an unlocking engaging portion (34) is opposed to an unlocking engaged portion (33) of the first piston (11) from left side, so that these wedge (31) and the engaging portion (34) are fixedly secured to the second piston (17).

Abstract: A pillar (3) is projected upwardly from a central portion (2) of a base plate (1), and at least two work receiving portions (4) (4) are disposed in the opposite sides of the peripheral portion of the base plate (1). A plurality of pressing arms (5) (5) are projected radially from the pillar (3) toward the work receiving portions (4) (4), and these pressing arms (5) (5) are supported horizontally pivotally by the pillar (3). A pressing hydraulic cylinder (6) is disposed in the projecting portion of the pressing arm (5) so as to face downwardly.

Abstract: An apparatus for precisely forming curved surfaces on a wooden workpiece in which the workpiece is automatically centered on a work table which is controllably movable inwardly and outwardly relative to a rotating cutter. The rotating cutter is slidably mounted withing a supporting frame so that the cutter can be controllably moved past the workpiece as the workpiece is moved inwardly and outwardly relative to the cutter. A template and a template follower precisely controls the movement of the table and the workpiece relative to the cutter to produce precisely formed curved surfaces on the workpiece.

Abstract: A hands-free vise includes a slide element that is slidably mounted on a body and a hydraulic unit that moves the slide element with respect to the body. The hydraulic unit includes a piston connected to the body and a cylinder connected to the slide element. Hydraulic fluid is moved into and out of a chamber which also contains a piston head to move the housing with respect to the piston. Hydraulic fluid is moved into and out of the chamber by a foot-controlled pump in a pump and reservoir unit.

Abstract: An apparatus for cutting and drilling stock wherein the cutting and drilling operations are performed simultaneously at a single station. A table having a planar surface is used for supporting the stock. A saw is disposed above the surface of the table, and a pair of drills, each having two drill bits, are disposed below the surface of the table. The saw is pivotally coupled to the table so that the saw may be moved toward the planar surface for cutting the stock. As the saw descends toward the table, a clamping mechanism is activated for fixing the stock in place on the table as it is being cut. As the stock is being cut, the drill bits extend through corresponding apertures in the planar surface for drilling the underside of the stock. After the stock is drilled, the drill bits retract and the clamping mechanism releases its grip on the stock.

Abstract: In a hydraulic clamp with a direct operated clamping-member, a piston (13) is so inserted into a cylinder bore (11) formed in an upper portion of a housing (4) as to be slidable in the vertical direction. A peripheral wall (11a) of the cylinder bore (11) is projected downwardly and fixedly secured to a lower portion of the housing (4). An opening (12) is so formed in the lower portion of the peripheral wall (11a) as to face a fixed object (2) such as a metal mould. A clamping actuation oil chamber (15) is formed above the piston (13). A spring accommodation bore (21) is formed upwardly from below in a clamping-member (5) which protrudes downwardly from the piston (13), and an unclamping spring (23) is inserted into the spring accommodation bore (21).

Abstract: An accessory for a jack hammer that includes clamping means for gripping the upper end of the stake so that the stake can be controllably driven into the ground by the user. The accessory includes a stake receiver that has a channel into which the end portion of the stake is inserted and further includes a jaw and clamping means for forceably retaining the jaw against the inserted stake. The channel includes guide ways that permit it to be used interchangeably with the more common sizes and shapes of stakes.

Abstract: The invention relates to a clamping device for the clamping of at least one piece of tooling, for instance an upper tooling or a press, which device comprises:two clamping jaws moveable towards and away from one another, between which the tooling can be clamped,pressure means, for instance at least one hydraulic cylinder for pressing the clamping jaws towards one another with force at energizing thereof, andat least one locking element present between the clamping jaws for co-action with an edge present on the tooling,such that the tooling in the absence of energizing of the pressure means can be pushed with at least one edge over the locking element, hook over the edge, and thus prevents the tool from falling,and is characterized in thata resilient strip, which is attached between the clamping jaws to one clamping jaw and which as a result of its own resilience lies in untensioned state at a distance from a pressure surface of this clamping jaw, whereby in the absence of energizing of the pressure means, the

Abstract: An automatic clamp tightener utilizes an air driven rotating tightener which is suspended on a plate. The plate is caused to slidably move inwardly towards the clamp to be tightened and to be withdrawn therefrom. A laterally movable carriage supports the tightener and the suspension plate. The tightener employs mechanic stops for end-left and end-right of the carriage to limit motion of the carriage. The motor driving the carriage bearing the suspended tightener may be either a stepping motor or a servo motor. The air driven tightener is powered to open or tighten a clamp for either a predetermined period of time or until a predetermined tension or strain is sensed in the clamp.

Abstract: The base (12) of the fixture apparatus carries four fingers (22)-(28) which define the top plane of the printed wiring board (14). The fingers move out of active position to permit placement of the board in a frame (16). The frame rests on lifter assemblies (46-52) which raise the printed wiring board into contact with the fingers.

Abstract: An automatic clamp tightener utilizes a pivotally mounted air driven rotating tightener which pivots about a base via the inflation and deflation of a flexible diaphragm. Sensors are utilized to locate the tightener and sense when a clamp is to be tightened or loosened. Sensors also detect when the tightener is driven to a stall condition indicating that the clamp is tightened. The work piece is flattened via two hold down bars which move into and out of engagement with the work piece under automatic control to hold the work piece firmly in place and to pressurize same while the clamp is being tightened. The tightener and the automatic flattener are mounted on the same supporting frame which moves laterally along the location of the clamps to be adjusted.

Abstract: A fixture for accurately locating a workpiece during machining operations. A table includes a plurality of frusto-conical openings arranged in a grid pattern to receive locator pins each having a frusto-conical base to seat closely in the opening in which it is inserted. The locator pins establish stops against which some parts of the workpiece are positioned. The workpiece is held against the pins by power cylinders carried on special pegs that can be inserted in the table openings. Air for operating the cylinders is made available to each opening through a valved line and a passageway extending to each opening in the table. Each peg has a passage arranged to receive the incoming fluid from the opening and to transmit the air to its cylinders to extend them against the workpiece.

Abstract: The invention provides a device for actuating a clamping tool means by fluid pressure and for monitoring the fluid pressure, which comprises a carrier for a workpiece and the clamping tool means, a first mounting element on the carrier, a second mounting element, and means for detachably coupling the second mounting element to the first mounting element. A pressure fluid conduit system is connected to a fluid pressure generator and includes a first fluid pressure conduit in the first mounting element, a second fluid pressure conduit in the second mounting element, detachable connections between the first and second fluid pressure conduits, the detachable connection in the first fluid pressure conduit including a check valve retaining the fluid pressure in the first fluid pressure conduit when the second fluid pressure conduit is detached, and a third fluid pressure conduit connecting the first fluid pressure conduit to the clamping tool means.

Abstract: A movable carriage of a support unit is guided via bearing surfaces along a base. A double acting piston and cylinder unit is formed within a bore located in the base. A piston divides the cylinder into front and rear chambers and a piston rod thereof extends through the rear end of the cylinder and is connected to the carriage for movement therewith parallel thereto. A first pressure fluid connection extends through the front end of the cylinder into the front chamber. The bore has a sleeve, the outer surface of which partly defines a channel extending along the exterior of the cylinder. A second fluid pressure connection is also arranged at the front end of the cylinder, but it communicates with the channel to communicate with the rear cylinder chamber.

Abstract: A pneumatically powered test fixture for bracing, holding and/or handling solid, bulky objects such as gas meters or the like. The fixture readily permits service or repairs and renders meters readily accessible and easily maneuverable. A rigid frame is adapted to be secured to a stable workbench or support, and an optional support plate may couple the frame to the support surface. A rigid mounting spacer secured to the frame mounts a pneumatically powered trunnion. When an optional frame mounting plate is omitted, the trunnion mounting spacer will be affixed directly to the workbench. A rigid, U-shaped cradle captivates a meter to be repaired or serviced. The cradle is rotatably suspended above the supporting surface by the trunnion, and the cradle can be manually rotated into a variety of user-selectable positions to readily expose all structural portions of the meter.

Abstract: An automatic clamp tightener utilizes a pivotally mounted air driven rotating tightener which pivots about a base via the inflation and deflation of a flexible diaphragm. Sensors are utilized to locate the tightener and sense when a clamp is to be tightened or loosened. Sensors also detect when the tightener is driven to a stall condition indicating that the clamp is tightened. The work piece is flattened via two hold down bars which move into and out of engagement with the work piece under automatic control to hold the work piece firmly in place and to pressurize same while the clamp is being tightened. The tightener and the automatic flattener are mounted on the same supporting frame which moves laterally along the location of the clamps to be adjusted.

Abstract: The invention relates to a hydromechanical tool or workpiece clamping apptus comprising at least one spring clamping cylinder connected to a release conduit and adapted to be hydraulically operated against a spring force to a release position, a pump connected to said release conduit and operable for a release operation, and a discharge conduit extending from said release conduit to a fluid reservoir and including a discharge control element for discharging the pressurized fluid from said spring clamping cylinder to said reservoir after deenergization of said pump. A known clamping apparatus of this type has a solenoid poppet valve disposed in said discharge conduit and operable to close said discharge conduit for the release operation and to be actuated to a flow-through position and maintained therein for the clamping operation. The solenoid valve is expensive and requires separate control means.

Abstract: An anti-rotational joint for connecting sections of cnduits together to form a flowline or the like wherein the joint includes a means that prevents the joint from accidentally unscrewing after it is made up to its desired torque.

Abstract: A programmably controllable vise has mechanisms for automatic adjustment of orkpiece position relative to three orthogonal axes. The positions of the vise jaws (during clamping) establish workpiece position along a first axis, and stop members (e.g., piston actuated stops) selectively extendable from the jaws establish workpiece position along a second axis. Two levelling bars supported adjacent the jaws by respective servo-actuators (e.g., double-acting piston type actuators) which adjust the bars along the jaws establish workpiece position along the third axis, as well as workpiece tilt about the first and second axes. Because the adjustments may be made automatically, the vise may operate unattended, with workpieces being loaded and unloaded by a robot. The vise jaws preferably incorporate replaceable jaw elements which are constructed for attachment and removal by a robot and which may be machined to accommodate non-prismatic workpieces.

Abstract: A system for controlling the jaws of a self-centering pallet which can be moved between pallet supports at the loading and unloading station and the working station of a machine tool includes an external hydraulic control circuit with a pair of ducts each of which communicates, through a respective connector device, with a pair of supply and discharge ducts of a double-acting cylinder incorporated in the pallet to control the jaws. Each connecting device includes interengageable connectors projecting from the mutually-facing surfaces of the pallet and the pallet support, a non-return valve located upstream of the connector on the pallet, and a rod passing through the connector on the pallet support and able to advance and open the non-return valve under the action of a piston subject to a pilot pressure.

Abstract: A clamping system is provided for securing a part to be machined to a fixture so that the fixture and part can be transported as an entity from work station to work station and the part subjected to successive machining operations safely and efficiently. The fixture incorporates a hydraulic system comprising hydraulically actuated means for quickly positioning the part and clamping it securely to the fixture without a high degree of dependence on human judgement. Fluid under pressure actuates the hydraulic means, each element of which is isolated by check valves from the rest of the system so that failure of any one element of the system does not jeopardize the safety of the part being machined or of personnel supervising the machining operations.

Abstract: A power-driven gripping tool particularly useful as a suturing device comprises a pair of needle holders each movable to an extended or retracted position and each including a pair of gripper members movable to a gripping position or to a releasing position. The handle further includes a power drive for driving the pair of needle holders and the pair of gripper members of each needle holder; and control means operable by the surgeon for selectively controlling the power drive.

Abstract: A jig for automatically welding pipe frames used to form vehicle seats is disclosed. In this jig, there is provided on a frame carrying plate a guide element having the reference plane of one of two side portions of a frame, so that the one side portion of the frame can be welded while it is in abutment with the guide element. To weld the other side portion of the frame, the frame carrying plate is moved and two adjusters provided in a bed plate are used for the reference. With such structure, while a welding machine remains fixed, by changing the references according to the portions to be welded in the width direction of the pipe frame, it is possible to weld the two side portions of the frame accurately.

Abstract: A gripper head for attachment to the Z axis shaft of a robot or a pick and place machine to pick up objects and position them on a workpiece, comprises a body from which projects a pair of gripping jaws which are slidable horizontally relative to the body by first and second pneumatic piston and cylinder units, respectively. A hold down and tamper member is vertically movable between the jaws by a third piston and cylinder unit so as to hold down an object to be picked up while the jaws are being closed about it and to tamp the object down against the workpiece. A brake is provided for stopping the piston of one of the first and second piston and cylinder units in a desired position. The hold down and tamper member may be arranged also to act as a vacuum pick up device.

Abstract: A joining jig for use in joining automotive vehicle body outer panels is composed of first and second contact members whose contact surfaces are contactable respectively with inside and outside faces of a joint section of the body panels. Both the contact members are so biased that their contact surfaces contact with the corresponding faces of the joint section under the action of a relatively high biasing force, when a brazing operation is carried out. An additional biasing device is provided for lightly biasing the first and second contact members so that their contact surfaces contact with the corresponding faces of the joint section under the action of a relatively low biasing force, prior to the biasing under the action of the relatively high biasing force, thereby enabling a precise location of the joining jig contact surfaces relative to the joint section.

Abstract: A vise assembly, for use on a drill press having a vertical cylindrical column and a table with a flat upper surface substantially perpendicular to the column, has a mounting block slidably and rotatably mounted on the column and a frame slidably mounted on the mounting block for movement parallel to the flat top surface of the table. The frame includes a back plate, at least two pairs of rods connected to the back plate, fixed and movable jaws, one of the pair of rods being connected to the fixed jaw and the other of the pairs of rods being connected to the movable jaw. The jaws normally rest on the table. In the preferred embodiment, hydraulic cylinders, carried by the back plate, are connected to move the pair of rods connected to the movable jaw. In another embodiment, a manually operated screw arrangement is used to move one pair of rods relative to the other, to move the movable jaw toward the fixed jaw.

Abstract: A table, movably carried upon a stationary base, is provided with a fixed jaw and a movable jaw for gripping the lateral edges of a door or similar panel-like workpiece. The table is movable in reciprocal directions against adjustably positionable stops to place a longitudinal edge of the door at predetermined locations relative the cutting path of a router. The router is mounted upon a carriage which is horizontally and vertically movably supported upon a frame upstanding from the base.

Abstract: A first portion of the device is suspended by a head from the mounting for an excavator bucket and comprises a first jaw and a guideway. A second portion of the device comprises a second jaw and a slide slidable within the guideway under the control of a hydraulically operated ram. Pins extend from the upper end of the second jaw and can extend through respective holes in sheeting held between the jaws and into respective holes in the upper end of the first jaw. Opposing plates are resiliently mounted on the respective jaws for engagement with the opposite sides of the sheeting. Vibratory means mounted on the second jaw vibrates the plate and thus the other plate and the sheeting therebetween.

Abstract: The present invention relates to a work-clamp pallet used to clamp workpieces on a table of a machine tool to improve the working efficiency of the machine tool. This is achieved by shortening the time for exchanging workpieces on the table and for positioning workpieces on the table along both X and Y axes. A large number of workpieces are positioned on a work-clamp pallet along the Y-axis by the aid of a standard frame secured to a base block and along the X-axis by the aid of positioning stoppers projecting from the standard frame. The workpieces are clamped against the standard frame by clamping devices disposed at least on one side of the standard frame. The positioning and clamping a large number of workpieces on the base block is done outside the machine and, when the machine has stopped a machining over, a work-clamp pallet is transferred onto the table in exchange for that with finished workpieces which is removed.

Abstract: A combination bookbinding apparatus which can be used as a sewing frame, or a lying press, or a standing press wherein only its position on a table or work surface determines its function. All parts are in place at once and no alteration to the device is needed to effect a change in function. The device is automotive and leaves the hands free for the manipulation of the book(s) preparatory to the clamping or pressing operations.

Abstract: A work-clamp pallet of the exchangeable type for facilitating changing of works and intended for use with a machine tool of either the vertical or horizontal type with its base block provided with a plurality of hydraulic clamping devices and also with a special shut-off valve for shutting down its oil path. It is so arranged that its oil path may be shut down after supplying the hydraulic clamping devices with a set level of hydraulic pressure. This hydraulic pressure is maintained for a long time without any supplementary feeding of hydraulic pressure for the clamping devices to be kept in the clamping condition. When this work-clamp pallet is used, it is possible to change workpieces on the work-clamp pallet at a work-changing station outside the work table of the machine tool. The work-clamp pallet with workpieces clamped in position can then be transferred onto the machine tool to carry out the machining operations.

Abstract: Disclosed is a fluid actuated core sample holding device for use with a boring drill press, the holding device having rotatable vise jaws and flat support surfaces adjacent the respective jaws and containing removable holding pins. The rotatable jaws permit a greater versatility in the positioning of core samples held between them relative to the drill press, while the flat support surfaces and associated holding pins serve to hold flat or irregularly shaped core samples, not easily held by the jaws, for boring.

Abstract: A pneumatic clamping device used to clamp a plurality of sheets together includes a cylinder with a guide element at one end defining a pneumatic chamber within the cylinder and a piston having an elongated shaft, a cylindrical head on one end of the shaft and a clamping foot on an opposite end of the shaft. The piston head is movable within the cylinder chamber, while the piston shaft extends through the guide element and positions the piston foot for insertion through aligned holes in the sheets when the shaft is substantially extended from the cylinder. A coil spring is positioned in the cylinder chamber between one side of the piston head and an end of the cylinder opposite from its one end for biasing the shaft to its extended position.

Abstract: A device for manufacturing containers for storing nuclear materials. The purpose of the device is to maintain angular sheet metals in the precise position required during the welding operation which is performed along the outer edges of their flange portions. The device includes a core, a thrust bearing and a counter-pressure bearing. The core is sub-divided into two separate core portions. Spring means tend to draw the core portions toward each other. Fluid operated cylinder-piston units tend to separate the core portions against the action of said spring means. Adjustment screw means provided with abutment means and screwed into one of said core portions project into the other of said core portions with the abutment means thereof. The second core portion has abutment means cooperating with the abutment means on said adjustment screw means.

Abstract: A press-fit device of a drive shaft into a differential gear installed in a front engine-front drive type automotive vehicle comprising a first mechanism for press-fitting a drive shaft and a Hooke's joint which are oppositely set to both sides of a differential gear and a second mechanism for retaining the first mechanism and adjusting the position of the first mechanism relative to the differential gear. The first mechanism is comprised of a cylinder fixedly provided with a first attachment at its one end and with a rod guide at its other end, a rod adapted to be reciprocatably inserted into the cylinder, being guided by the rod guide and having a stopper at its free end, a second attachment slidably fitted on the rod between the stopper and the rod guide, and a guide shaft provided in a parallel relation with the cylinder for guiding the movement of the second attachment.

Abstract: A two step pressure intensifier adapted for use as a clamp or a via including a housing cylinder which sealingly houses a telescoping cylinder. The telescoping cylinder is extended rapidly outward by application of low pressure to hydraulic fluid within the telescoping cylinder. Upon meeting resistance, the extension speed of the telescoping cylinder is slowed down and high presssure is applied.The use of a small diameter force input rod or piston is encompassed by a close fitting input portion of the telescoping piston so that the two pistons move together during a portion of both their force and retraction strokes.

Abstract: A holding apparatus for use in conjunction with a plastic welding machine adapted to lift an article placed therein toward a head assembly having the holding apparatus associated therewith to retain the article in place, the holding apparatus comprising a mounting plate having a face adapted to receive the article, a port extending through the face, a vacuum actuated piston operatively associated with the port, and opposing side plates connected to selected edges of the mounting plate and operatively associated with the piston, which side plates include strips or bands which extend transversely from the side plates toward the mounting plate, and which are adapted to engage selected portions of the article. In use, the article is placed over the mounting plate, covering the port and sealing the vacuum system. The vacuum operated piston is activated, retracting the side plates and engaging selected portions of the article by the strip or band.

Abstract: A force may be applied to any point along a line which may be straight or curved in a plane or in space. For this purpose a force applicator is used which includes a pressure expandable hose section closed at its ends, a reaction member against which the hose rests, and a pressure transmitting plate moving in response to an expansion of the hose. These three elements are held in an operative position relative to one another by a modular frame section which also holds a guide member and a reset element for restoring the hose section to a starting position when no pressure is applied inside the hose. A piston rod extends through the guide member and is operatively connected to the pressure transmitting plate. The modular frame section, the guide member and preferably also the reset element form a modular unit.