Abstract: A tool for the extraction of bushings, bearings or other similar objects pressed into blind holes.The preferred embodiment of the invention consists of a cylinder tube 1, with a blind head 2 attached, and sealed by blind head seal 5. The piston 3 is joined to the rod 4 which travels through the rod hole 12 and is sealed by the piston seal 6 in the inner diameter of cylinder tube 1.The blind hole bushing and bearing remover is used by installing the appropriate nose piece (ball type, bushing/bearing removal nose piece 8; or self-threading, tapered type, bushing/bearing removal nose piece 17) into the bushing or bearing to be removed. Pushing media (grease) is introduced under pressure, and travels through check valve (grease fitting) receptacle and linear hole 7, thus moving piston 3, and extending rod 4 through the appropriate nose piece.

Abstract: A tube pulling device for extracting a tube from a tube sheet includes a cylindrical housing having an operating chamber with an opening at the forward end thereof and the rear end of the operating chamber being closed. A front piston is reciprocally disposed in the operating chamber and provided with an axial passage therethrough. A tubular extension is slidably disposed in the operating chamber opening and is connected to the front piston. The tubular extension includes a plurality of spaced jaws for engaging the bore of the tube to be extracted. A rear piston is provided and reciprocally disposed in the operating chamber. The rear piston includes a piston rod disposed within the axial passage of the front piston and extends for slidable movement in the operating chamber opening. An expansion device is interconnected to the piston rod and extends through the tubular extension of the front piston.

Abstract: A device for fitting a hosel on a club shaft including a holder seat mounted on two rails. A horizontal pneumatic cylinder is provided to control a horizontal movement of the holder seat. Two holders are provided to hold the club shaft during the fitting of the club shaft with a hosel. A vertical plate, which has a hole in alignment with the axis of a club shaft to be fitted with a hosel, is provided on a first end of the holder seat with an assembling cylinder rod mounted in the hole for the fitting of the hosel on the club shaft.

Abstract: A lock system for a pipe joiner device is disclosed having a fixed-side connector block provided with at least a connector and a moving-side connector block provided with another connector for engagement with and disengagement from the foregoing connector, in which as the piston rod of a single actuator cylinder advances forward, lock levers mounted to the moving-side connector block moves forward into a connection opening formed in the fixed-side connector block and also, the positional relation between pin members fixedly mounted on the lock levers and L-shaped guide slots provided in a dog which is supported by the forward end of the piston rod for forward and backward movement varies thus to extend toggle links joined between the front ends of the lock levers and the forward end of the piston rod, so that hook portions formed on the front ends of their respective lock levers can engage with a connecting opening end area of the fixed-side connector block to join the moving-side connector block with the fix

Abstract: An apparatus for inserting a resilient valve seat into a valve body, the valve body being of a type having a radially inwardly projecting annular rib which defines a bore through the valve body, the valve seat being generally annular and having an annular web portion, a first annular flange portion projecting radially outwardly from a first end of the web portion and a second annular flange portion projecting radially outwardly from a second end of the web portion to define an annular, radially outwardly opening channel for receiving the rib, the apparatus including a frame which has an opening and having a plate for positioning a valve body adjacent the opening such that the bore in the valve body and the opening in the frame are in register, a plunger assembly slidably mounted in the frame, the plunger assembly having a mounting head and a plurality of circumferentially spaced grabbing elements secured to the mounting head, the grabbing elements including projections to engage one of the annular flange port

Abstract: Apparatus (10) to replace sets of rolls and relative equipment in rolling stands having rolls supported as cantilevers, which is able to take from the stand the sets of rolls and relative equipment complete and already used and to deliver to the stand new sets of rolls and relative equipment complete and already prepared, positioned and adjusted, the sets of rolls and relative equipment consisting of the rolls, relative equipment, supports and everything else which can be replaced whenever the rolls are changed, the apparatus (10) comprising in reciprocal cooperation a support device (15), at least one positioner assembly (20) and, at least momentarily, at least two support units (21), the positioner assembly (20) being able to move so as to place opposite and position correctly a support unit (21) in relation to the rolling stand (11).

Abstract: Apparatus for repairing broken stringers of wooden pallets and a method involving the use of the apparatus is disclosed. The apparatus comprises a pair of interconnected jaws having pads mounted on one end with magnets to secure studded repair plates to the pads. A broken stringer is inserted between the pads and the jaws are swung together to imbed the studs in the wood with the plate extending across the break effecting the repair. The pads are provided with limiting pivoting movement to insure proper alignment of the plates with respect to the stringer sides irrespective of the angle of the jaws when the studs contact the wood. A jack is used to adjust the vertical positions of the jaws for convenient use of the apparatus.

Abstract: A frictional joint between a first member and a second member is dismantled by means of a hydraulic nut fitted onto an external screw thread of the first member. The hydraulic nut acts on a separation ring having an external screw thread engaged with an internal screw thread in a co-axial recess provided in the second member.

Abstract: A tool and machine for removing fasteners from a workpiece. The tool includes a two-piece housing with a shaft slidably positioned therein. The upper part of the housing slides relative to the lower part and serves to support the shaft as it is urged into the fastener to dislodge it from the workpiece.

Abstract: A device for inserting or removing a plug and probe (13) which is subjected to high pressure in a process pipe or a tank. A nipple (12) is attached to the pipe (11) or the tank. The nipple can be secured by a cover (14). After removing the cover a ball valve (15) can be attached to the nipple. A hydraulic cylinder (16) is then externally connected to the ball valve. A piston in the cylinder can be connected to the probe through the ball valve. This piston can be used to pull the plug out or push it in through the ball valve. Once the plug has passed through the ball valve, the plug can be removed from the cylinder and replaced, if necessary.

Abstract: A hinge pin is temporarily held on a first hinge member on the automobile body by means of a hinge pin support mechanism. A door to be attached to the automobile body is held in position, and a second hinge member on the door is brought into engagement with the first hinge member. The hinge pin is pressed into the second hinge member through the first hinge member to couple the door to the automobile door. The hinge pin support mechanism includes a hinge pin retaining member including a ring separably joined to a plurality of legs. When the hinge pin is pressed into the hinge members, the ring is sheared off from the legs and rides in a peripheral groove defined in the hinge pin. The ring then engages one of the hinge members to prevent the hinge pin from being removed from the hinge members. The door can automatically be attached to the automobile body by a door attaching mechanism and detached from the automobile body by a door detaching mechanism.

Abstract: A golf club handle sleeve assembling mechanism including a working table and a handle sleeve supporting and assembling unit. The woking table has a first clamp device provided for clamping a golf club, and a head seat provided for supporting a golf club head. The handle sleeve supporting and assembling unit is disposed on one side of the working table and includes a first table slidable longitudinally relative to the golf club by means of an actuator; a second table is slidable relative to the first table by means of an actuator; a second clamp device is disposed on the second table for clamping a handle sleeve; three actuators, each with a draw hook, are provided radially around the handle sleeve at a front end of the handle sleeve for expanding the front end of the handle sleeve; an air blower is disposed on the first table and aligned with the handle sleeve; and a control box is provided on the first table for controlling the actuators and the air blower.

Abstract: A positioner for use in removing from or installing camshaft bushings in a camshaft alley of an engine employing a camshaft extending along an axis and having a front planar face normal to the axis includes a yoke removably secured to the engine front face. A bar is supported by the yoke in place of the removed engine camshaft. A motor interconnects the yoke and the bar for relative axial motion. Bushing-engaging sleeves removably lock axially around and onto the bar at locations axially spaced to abut the ends of the bushings at the various locations of the engine camshaft bushings.

Abstract: The fly wheel and the ignition coil are set on the set jig with a comparatively large space left therebetween so that the two do not adhere to each other during the placement thereof. After the fly wheel and the ignition coil are placed on the set jig and are delivered to the two holding means of the assembling jig, a large space is maintained between the fly wheel and the ignition coil so that when the fly wheel is turned to be aligned, there is no magnetic force acting between the fly wheel and the ignition coil. Thus, the fly wheel can be easily assembled to the crankshaft. Thereafter, the ignition coil is brought to approach the fly wheel and is assembled to the engine main body where it is located at its normal facing position in relation to the fly wheel.

Abstract: A fixture engages each leg of a chair leg assembly to support each leg against longitudinal displacement along respective leg axes. A ram and associated drive member are mounted opposite each leg free end so that each ram axis is substantially aligned with one leg axis. A glide is adapted to fit loosely on the leg free end in a first position and to be driven tightly onto the leg in a second position. A pair of cam arms are coupled to the ram so that as the ram advances toward a leg that has a glide in the first position thereon, the cam arms and jaw members at the free ends of the cam arms, pivot toward the leg. The jaw members cooperate to align the leg axis with the ram axis while the glide is in the first position and to support the leg transversely to the leg axis as the ram advances to drive the glide into the second position.

Abstract: Apparatus for seating a wheel stud in a hub, the apparatus preferably comprising a cylindrical spacer sleeve having an axial bore, a stud coupling and a cylinder coupling adapted to be coaxially adapted within the axial bore, and a hydraulic cylinder; the cylinder coupling and stud coupling being further adapted to releasably engage the wheel stud to the hydraulic cylinder, and the hydraulic cylinder being adapted to exert sufficient pulling pressure on the wheel stud relative to the hub to fully seat the wheel stud in the hub.

Abstract: This invention discloses an apparatus for removing pins from connecting link boat hardware. After connecting links are used to secure anchors or buoyes to chains, the links often become corroded and it is difficult or impossible to remove the connecting link pin on order to release the anchor or buoy. The invention is a portable apparatus which can be attached to a connecting link in a position of alignment with the connecting link pin. A plunger is then activated so as to force the pin out of the connecting link so that the connecting link can be disassembled.

Abstract: A fluid actuated tool for pressing work pieces with a controlled force and dwell time is provided. The tool includes a fixed jaw and a movable jaw which is movable toward and away from the fixed jaw which arrangement allows a work piece to be squeezed between the jaws. A fluid actuated cylinder is provided which is connected to the movable jaw. The connection includes a coil spring and link and slot arrangement wherein force is transmitted to the work piece between the jaws by compression of the coil spring independent of the fluid force, and the link and slot arrangement allows limited movement of the piston independent of the movable jaw when the jaw meets the resistance of the work piece. The spring thus allows for a dwell time as well as a force independent of the fluid pressure.

Abstract: Apparatus for repairing broken stringers of wooden pallets and a method involving the use of the apparatus is disclosed. The apparatus comprises a pair of interconnected jaws having pads mounted on one end with magnets to secure studded repair plates to the pads. A broken stringer is inserted between the pads and the jaws are swung together to imbed the studs in the wood with the plate extending across the break effecting the repair. The pads are provided with limiting pivoting movement to insure proper alignment of the plates with respect to the stringer sides irrespective of the angle of the jaws when the studs contact the wood. A jack is used to adjust the vertical positions of the jaws for convenient use of the apparatus.

Abstract: Camshaft assemblies, methods and apparatus are provided for making camshafts by the expansion of tubular shafts into prelocated cams, journals and other elements, if desired. Features of the camshafts include trilobe or polylobe element openings, preferably splined or serrated for low energy filling and high torque capacity and high strength low alloy mild steel tubular shaft material. The method emphasizes trapping, or loading, the shaft to prevent axial lengthening during expansion such as by mechanical ballizing. The apparatus includes adjustable thrust blocks and locating plungers with incorporated flush pin gages together with hydraulic or other loading means all for use in carrying out the assembly method with various benefits from the incorporated features.

Abstract: The invention relates to a method and to apparatus for tightening and slackening bolts by hydraulic tensioning. The apparatus comprises a tightening system (60) applied to the bolts to be tightened and/or slackened, controlled by a central unit (24), via the intermediary of a control device (26) and a hydraulic pump (28). Transducers (19 and 18) permit respectively measurement of the effective strain of the bolt and the pressure effectively applied to the tightening system (60). A correlation between the effective strain of the bolt and the pressure effectively applied is thus effected for obtaining a very good precision of the strain. Application is to mechanical construction in the nuclear environment.

Abstract: An apparatus and method for remotely inserting and positioning a sleeve-loaded mandrel within a damaged tube mounted in the tubesheet of a nuclear steam generator is disclosed herein. The apparatus of the invention generally comprises a frame, a mounting mechanism for detachably and pivotally mounting the frame to the open end of one of a first tube in the tubesheet, an advancing assembly supported by the frame for remotely inserting and advancing the sleeve-loaded mandrel to a position across a damaged section of the selected tube, and a drive train for pivotally positioning the advancing assembly into alignment with the open end of the selected tube. In the preferred embodiment, the advancing means is formed from the pair of hydraulically operated grippers, one of which is reciprocably movable with respect to the other.

Abstract: A clasp for fixing an electrical wire to an insulator having a saddle portion and a method of doing so. The clasp includes a resilient but bendable clamp, having attached to its inner surface a wire gripper element, made of a semi-conductor elastomeric material. The method of fixation involves the use of a power device associated with mechanical parts adapted to carry out a series of simple steps, including the steps of lifting the electrical wire into the gripper, and applying pressure to close the gripper around the wire while simultaneously securing the clamp to the saddle portion of the insulator.

Abstract: A Coal Mill Road bearing race puller for removing a bearing race from the lower journal housing of a coal mill and a method of removing a roll bearing race are disclosed. The bearing race puller includes a puller base which is receivable within a lower journal housing of a coal mill below a bearing race to be removed and at least one puller segment that is operatively coupled to the puller base so as to extend beyond an outer peripheral edge of the puller base member and under a circumferential lower edge of the race. According to the preferred method of the present invention, a hydraulic jack is fixedly coupled to the puller base member and is used to push/lift the puller base member and attached puller segment(s) out of the lower journal housing and to thereby push/lift the race out of the lower journal housing.

Abstract: Method and Tool for removing a swaged collar from a pin member of a lockbolt type fastener by using a tool having a housing with an opening therein having opposite wall, one wall having a pair of fixed spaced blades extending longitudinally of the collar and the other opposite wall having a piston operated ram, whereby said ram forces said collar against said blades to cut through and spread said collar to separate the collar from the pin member.

Abstract: A hydraulically actuated device for moving machine parts or the like, especially a device for pressing or fitting bearings into place in the forks of universal joints, consisting of a linear-action work cylinder, a pressure generator with a constant pressure, a supply tank with pressure medium, a main valve which controls the flow of pressure medium to provide the required amount in the work chamber of the work cylinder, a main line connecting these parts of the device, and a measurement system, which controls the main valve as a function of a measurement value, especially the center offset of the joint fork with respect to a reference axis or the like, characterized in that, between the work chamber of the work cylinder and the supply tank, a return line is provided, which has a throttle device which sharply reduces the return flow of pressure medium by comparison to the flow of medium into the work chamber.

Abstract: A machine for applying frames to fabric with the fabric accurately aligned with the frame. A work surface has blocks which are adjustable to position an outer frame along a line 45.degree. to the front of the machine. An air cylinder is supported over the work surface by an arm which is slidably adjustable relative to a column which is rotatably adjustable to position the air cylinder relative to the outer frame. A pressure plate of the air cylinder holds an inner frame to be pressed into the outer frame. A laser light source is supported by the column so as to be directed to any desired position on the work surface to align the fabric with the outer frame.

Abstract: Apparatus for use in repairing internal combustion engines by admitting air under pressure into selected cylinders of the engine comprises a manifold including an inlet fitting for connection to a source of compressed air, at least two primary outlet fittings on the manifold, two corresponding primary spark plug hole fittings, and primary hoses connecting the primary outlet fittings to corresponding ones of the hole fittings to provide at least two primary air circuits. The manifold also has at least one secondary air circuit comprising an outlet fitting including a normally closed check valve, at least one secondary spark plug hole fitting and a secondary hose connecting it to a nipple fitting which can interlock with and open the associated check valve. With four secondary circuits the apparatus can be used with a large variety of engines, including in-line 4 and 6 cylinder; 2, 6, or 8 cylinder V-type, and 4 and 6 cylinder opposed type.

Abstract: A device is provided for clamping and centering two parts to be welded together, such as a flange or edge against a pipe or two pipes against each other, or a pipe against a pipe, so that the parts can be welded together in a clamped position. The device comprises a clamping tool which is in the form of a portable, manually operable unit. The tool preferably has clamping tongs with interchangeable clamping pins for interior clamping.

Abstract: A tool for use in combination with an annular roll fixed on the end of a shaft by means of a sleeve axially inserted in wedged engagement therebetween. The tool includes a hydraulically actuated piston-cylinder assembly having an axially extending mounting stem which is adapted to be received in detachably interlocked engagement within an axial blind bore in the end of the shaft. The cylinder is rotatable on the stem to adjust the tool between sleeve removal and sleeve inserting positions. When in the sleeve removal position, the piston bears against the shaft end and the cylinder engages and removes the sleeve. When in the sleeve insertion position, the cylinder is checked against a stop on the mounting stem and the piston urges the sleeve into wedged engagement between the roll and the shaft.

Abstract: Different size holders and a press for installing constant velocity axle seals and metal retainer rings. The holders have internal walls which are angled 11/2 degrees to allow the axle, joint seal and metal retainer ring to be seated firmly and perpendicular on the holders internal shoulder, the holders can be moved in the press base to position it on the center line of the axle compression screw. The press base has an opening just large enough to allow the holders to be located under the screw if needed. The axle is then pressed into the joint seal and metal retainer ring. The press is portable and can be mounted on a horizontal surface. The axle can be pressed into the joint seal and metal retainer ring manually or by a powered air or hydraulic cylinder. Pressing the constant velocity axle into the joint seal and metal retainer ring eliminates clamping the constant velocity axle in a vise and hammering the seal and ring onto the axle.

Abstract: A tool for inserting sleeve blanks in damaged steam-generator tubes of light weight capable of being manipulated by ROSA, a remotely operated service arm. ROSA permits the tool to be attached externally of the channel head of the steam generator.The tool includes a fixed gripper and a moveable gripper. The gripping member of each gripper is a flexible sheet or bladder which conforms readily to the surface being engaged. For insertion, the sleeve blank is mounted on a mandrel. The insertion is carried out by operating the grippers repeatedly through the following cycle until the sleeve blank is inserted into the damaged tube:(a) The moveable gripper is set in the lowermost position.(b) The fixed gripper is open.(c) The moveable gripper engages the sleeving assembly.(d) The moveable gripper raises the sleeving assembly to the uppermost position.(e) The sleeving assembly is engaged by the fixed gripper.(f) The moveable gripper is disengaged from the sleeving assembly.

Abstract: The present invention is directed to a Push Pull Press Machine for use in assembling, disassembling and rebuilding drive shafts. The machine is provided with a bed and fixtures for holding and positioning both ends for precise and easy alignment of the shaft. The present invention is directed to a machine which will allow drive shafts having different configurations to be quickly and easily disassembled, aligned and/or assembled.

Abstract: A machine which separates pallet boards from their connecting stringers by sawing essentially through their attaching nails only, thus minimizing damage to the boards so that they can be reused.In order to separate and loosen the boards so that only the nails are cut a pressing device is designed to squeeze the sides of a pallet inserted within it. Then the loosened pallet, with the boards lifted so that there is space enough for a saw blade to be inserted to cut the nails only, is sent through the previously described sawing machine.

Abstract: A two part tool fits into the crankshaft bore of a partially manufactured connecting rod for an internal combustion engine and expands the bore to break the bore housing into two pieces, one of which comprises a bearing cap to permit installation of the rod onto a crankshaft journal. The tool is retracted to fit within the bore for the bearing and a high pressure acts on a piston to provide a high enough force to move two parts of the tool away from each other in direction perpendicular to a bisecting plane that lies along the central axis of the bore and to split the one piece bearing housing into two parts along a place defined by notches which weaken the bearing housing in selected areas. The piston is centered on the bisecting plane of the connecting rod so that the forces are balanced to ensure uniform, repeatable operation.

Abstract: An extractor for removing worm elements which are fastened for rotation on the worm shaft of a worm extruder wherein a frame formed of longitudinal and cross members has a locking device in one of the cross members for holding the worm elements and an opposed, displaceable, pneumatic piston-cylinder unit on another cross member. The piston-cylinder unit has a pressure piston which is extendable axially towards the worm shaft. Between the worm shaft and the piston-cylinder unit is a slide which is displaceable longitudinally and can be engaged by the piston of the piston-cylinder unit. The slide carries an impact device which is pneumatically actuatable and includes an impact shaft for engaging the worm shaft. The locking device includes two clamp jaws which are axially aligned with the impact shaft and the piston and engage the worm profile with an inner profile surface of identical type.

Abstract: A tool for installing an externally threaded and keyed insert comprising a mandrel for the acceptance of an externally threaded insert. A cylindrical key-set sleeve is journaled on the mandrel and is movable axially thereof so as to bias the keys on the insert to the locked condition. An air chamber supports a piston that is movable upon the introduction of pressurized air into the air chamber to effect locking movement of the key-set sleeve.

Abstract: A gripper with leaf springs having fingers near their ends to engage and disengage work. The springs are respectively connected in an annular array to the end of a cylindrical support. The springs are diverged or expanded to cause the fingers to engage the work and are converged or collapsed to cause the fingers to disengage the work. During the diverging and the converging each spring is pivoted about its junction with the support. The diverging and the converging of the springs is effected by an actuator or mandrel including a rod having a nose at its outer end. The actuator is reciprocable within the springs between advanced and retracted positions. Near its outer end the rod has a conical cam surface which engages cooperative internal cam-follower surfaces on the springs to diverge the springs when the actuator is in advanced position. The nose has a skirt which engages the outer ends of the springs, i.e. the fingers, to converge the springs near the ends when the actuator is in retracted position.

Abstract: A jack device employed to extract agitators from the drive shafts of washing machines. The device includes an annular split ring member having two closed ends and enclosed chamber therein. The enclosed bladder device expands into a split toroidal configuration. A tube attached at the periphery and extending from under the agitator to the outside tub is employed to transfer hydraulic or pneumatic pressure into the said device resulting in expansion of the same. The wall of the bladder is thicker in a zone around the periphery than elsewhere. This thicker zone prevents the device from ballooning out from under the agitator which would result in failure of successfully removing the agitator from the shaft.

Abstract: An apparatus for unseating wire rope wedges is accomplished by means of a linear motor such as a hydraulic jack mechanism. The hydraulic jack includes a housing structure adapted to be seated about a portion of a wire line connector device in such manner that a force transmitting retained relationship is established between the housing and the wire rope connector. A linear actuator within the housing is energized against the small end of a wire rope wedge and accomplishes movement of the wedge to its unseated position to release wire rope secured thereby.

Abstract: A cylinder liner sleeve puller has four legs having flanged feet at their bottom and being connected by four pivotably mounted pivot arms. The arms are pivotably connected to a central hub, which arrangement forces the lower ends of the legs outward when the hub is manually moved downward. In operation, the legs are inserted into the cylinder so that their bottom extremities are below the lower end of the liner sleeve. The hub is then pressed downward, forcing the lower ends of the legs outward until the flanged feet are directly below the liner sleeve. A jack support plate having spaced holes for the legs is then passed over the legs and rests on the engine block. A hydraulic jack is placed on the support plate, and a top plate is fastened to the top of the legs. When the jack is activated, the plunger pushes the top plate upward, causing a corresponding upward movement of the legs, thereby removing the liner sleeve.

Abstract: A crash protection apparatus for a pulling device having a hollow piston cylinder and a pulling claw for pulling a tube out of a tube sheet of a heat exchanger chamber in which the pulling device is disposed, the crash protection apparatus includes another cylinder without a piston rod having an axis substantially parallel to the axis of the hollow-piston cylinder and being fixed relative to the tube sheet in the chamber, a piston of the other cylinder, a bracket extending from the piston substantially at a right angle to the axis of the other cylinder for supporting the pulling device with a supporting force provided by the other cylinder, and a device for controlling the supporting force for compensating only the weight of the pulling device in each position of the pulling device.

Abstract: An apparatus and method for replacing trunnion bracket spindles is disclosed. The preferred apparatus comprises a first plate and a second plate, threaded rods extending between the plates, and wing nuts on the ends of the rods to prevent the plates from spreading apart during use. The first plate includes a ram mounting pin to which a hydraulic ram is secured. The hydraulic ram is used to force the old spindle from the bracket bores and to force the new spindle through the bores. Also, the preferred apparatus includes scissor jacks to help position the second plate and ram with respect to the trunk suspension. The apparatus of the present invention is used by cutting out a center section of the trunnion spindle, forcing the remaining sections of the trunnion spindle from their respective bracket bores, and forcing a new trunnion spindle through the brackets bores.

Abstract: An apparatus for assembling a bicycle frame of the type in which the head tube, bottom bracket and seat post bracket include stubs for receiving connecting tubes in a press fit. The apparatus includes a base, a clamp for receiving the bottom bracket, a carriage for receiving the head tube, and a swing arm which pivots about the axis of the bottom bracket clamp and receives the seat post bracket and seat mast of the bicycle frame. Double-acting cylinder motors are mounted on the base for displacing the carriage toward the bottom bracket clamp and for pivoting the swing arm toward the carriage. Other cylinder motors are mounted on the carriage and are actuated to secure the head tube, and a cylinder motor is mounted on the swing arm to urge the seat bracket toward the bottom bracket.

Abstract: A hydraulic actuator (26) for removing a plug (14) from a tube (12) including tube gripping means (28, 32), the actuator having a double piston arrangement (38, 52), which when energized quickly and efficiently first causes the gripping means to positively grip the plug, and then thereafter remove the plug from the tube, all in one continuous motion.

Abstract: A plurality of spring clips (30), each having an elongated central member (32) with first (40) and second (38) ends and a plurality of resilient arms (36) radially extending therefrom, are simultaneously transferred between a transfer plate (90) and a pallet (20). The first ends (40) of the member (32) are lockably engaged in the transfer plate (90) with the second ends (38) thereof positioned into apertures (24) in the pallet (20). The central member (32) is rotated to release the first ends (40) from the transfer plate (90) while simultaneously lockably engaging the second ends (38) to the pallet (20) to secure the clips (30) therein and to capture a chip carrier (10) between the ends of each arm (36) and the pallet (20).

Abstract: In order to provide a method and a disc cutter machine for carrying out the method with which the previously strenuous blade receiver exchange is simplified and facilitated, it is provided that the blade receiver (8) to be exchanged is tilted up by means of a tilting arrangement (19) with its end facing the outer side of the disc cutter, received by a guide (27) and drawn out substantially in the radial direction along the guide from the region of the disc cutter (6) and then the new blade receiver is inserted along the guide into the disc cutter.

Abstract: A device is provided for extracting a sheet-metal-encased gas-purge brick from a perforated brick or a perforated-brick sleeve simply, quickly and without causing any appreciable contamination. The device consists of a frame adapted to rest upon the exterior of the perforated brick, upon the perforated-brick sleeve, or upon the outer wall of a metallurgical vessel; a drawbar displaceable axially in the frame in relation to the metallurgical vessel and adapted to be set up in alignment with the centerline of the gas-purge brick; a device,provided on the drawbar, for coupling the end thereof to the gas-purge brick; and a driving means for displacing the drawbar in a direction away from the perforated brick. The coupling device consists of a coupling part seated upon the drawbar; a counter-coupling part secured to the gas-purge brick; and a coupling pin adapted to be passed through aligned holes in the two coupling parts.

Abstract: A tool for pulling heating tube sections from a tube sheet of a steam generator, includes a threaded pulling mandrel screwed to the heating tube section, a mounting plate fixed to the tube sheet, a hydraulic linear drive having a cylinder fastened to the mounting plate and a first lifting piston, a hydraulic clamping means having a cylinder surrounding the mandrel and being fastened to the first lifting piston, wedge-shaped clamping jaws having wide and narrow ends and being movable in longitudinal direction of the mandrel for engaging the clamping piston with the mandrel, and second and third hydraulic lifting pistons of the clamping piston, the second lifting piston resting against the narrow ends and the third lifting piston resting against the wide ends of the clamping jaws.

Abstract: A method and apparatus for coldworking of holes using a split mandrel. The apparatus uses a mandrel having radially directed slots to permit contraction of its outer diameter as it is fitted within a hole. The mandrel contains a pilot inside the mandrel. After placing the mandrel and pilot within a hole to be coldworked, the pilot is pushed into the mandrel expanding the mandrel. The pilot and mandrel are then withdrawn through the hole, thereby coldworking the hole.