Abstract: An improved burn-in board cartridge for use in burn-in and testing of IC packages in an automated burn-in and test system is disclosed. The cartridge includes printed circuit cards mounted on a single or both side faces of the cartridge, thereby permitting IC packages to be mounted on either or both sides of the cartridge. The cartridge includes a sturdy frame holding in place the printed circuit cards and providing strength to reduce damage to the circuit cards. Attached to the frame are rails which are used to position the cartridge in various apparatus such as burn-in chambers. Cooling tubes and electrical components can be placed inside the two-sided cartridge, between the printed circuit cards. The burn-in chamber is divided into zones with each zone having a number of slots into which a burn-in board is placed. The chamber includes rotating air diverters positioned at each end of a zone which are capable of channeling the heated air within the chamber around any one zone.

Abstract: This invention is a new device for installing press fit couplings to join steel pipelines. This apparatus is a joining press which fits inside the pipes to be joined and grabs them on their inside surfaces. It then pulls the pipes together, forcing the pipe ends into the coupling. The invention is comprised of two hydraulically operated grippers to grip the pipe and a hydraulically operated cylinder to pull the pipes together. The entire press is controlled using only two hydraulic lines. The grippers can be retracted and the apparatus moved within the pipeline from one joint to the next.

Abstract: An apparatus and method for connecting a rotatable hub to a drive shaft is disclosed in which the rotatable hub has an axial opening and a radial through opening between an outer surface of the hub and the axial opening of the hub. A rotatable shaft having an axial slot is positioned in the axial opening of the hub with the slot facing the radial through opening of the hub. One or more pins are inserted through the through opening in the hub into the slot in the shaft to insure rotation of the shaft and the hub together. The radial through opening may be covered at the outer surface of the hub to hold the pin in the through opening and in the slot.

Abstract: Methods and tools for installing fasteners of the lockbolt type. The fastener is pulled through cooperating apertures in a stackup of parts being joined by a tool with jaws which can be closed to grip the pintail of the fastener and then retracted to seat the fastener. A collar is swaged onto a grooved section of the fastener's shank and the pintail is broken off to complete the installation of the fastener.

Abstract: A rig puller for removing rings from shafts to which they are affixed. The puller is formed by a steel heat accumulator ring having a slot separating the ring into a band having separated ends. An electrical conductor extends between the ring ends, and a clamping device is provided to force the ring ends towards each other about a ring to be removed. By utilizing steel which as compared to most metals and more particularly aluminum has relatively low specific heat and thermal conductivity, the ring may be efficiently heated inductively and used immediately to effect expansion of the ring to be removed without requiring cleaning where the accumulator ring had been heated in an oil bath or the like as previously.

Abstract: Apparatus for lifting and applying torque to an object is disclosed. The apparatus comprises a releasable spring counterbalance which resiliently connects a drive for engaging applying torque to the object to a means for lifting an object, such as a crane. Preferably, a body portion connects the drive and a means for supporting the object. A spring counterbalance reduces the force due to the weight of the object which bears upon the threads when the object is lifted into a position to be torqued. After the threads are initially engaged, the counterbalance is removed and torque applied to the drive means. Torque is transferred through the body portion to the object. Thus, problems associated with the handling of large parts and initially engaging threaded connections are substantially reduced, since the initial engagement takes place under conditions of reduced force.

Abstract: An apparatus for gripping a tube end of a plate fin heat exchanger by a pair of coacting jaw grippers movable both longitudinally and radially with respect to the tube end. The coacting jaw grippers are positioned such that the tube ends of a multirow coil can be gripped along any row of the coil.

Abstract: An axle shaft pulling assist device to help remove an axle having a flanged end, from a wheel hub, the device including an elongated main block with threaded biasing members which engage the back side of the flanged axle end. A striker shaft slidably arranged through the main block is hit, to jar the axle shaft loose, while the bias is being applied to the studs.

Abstract: An improved burn-in board cartridge for use in burn-in and testing of IC packages in an automated burn-in and test system is disclosed. The cartridge includes printed circuit cards mounted on a single or both side faces of the cartridge, thereby permitting IC packages to be mounted on either or both sides of the cartridge. The cartridge includes a sturdy frame holding in place the printed circuit cards and providing strength to reduce damage to the circuit cards. Attached to the frame are rails which are used to position the cartridge in various apparatus such as burn-in chambers. Cooling tubes and electrical components can be placed inside the two-sided cartridge, between the printed circuit cards. The burn-in chamber is divided into zones with each zone having a number of slots into which a burn-in board is placed. The chamber includes rotating air diverters positioned at each end of a zone which are capable of channeling the heated air within the chamber around any one zone.

Abstract: A heavy duty automotive wheel hub puller includes a plurality of support legs extended from a support bracket. These legs connect to the wheel hub lugs and the support bracket passes over the wheel hub. A pressure screw threaded through the support bracket is directed against the axle housing at the center of the wheel hub. Turning the screw into the axle housing exerts a force which causes the hub to drift off the axle housing. The support legs provide axes of rotation for the leg bases which engage the wheel hub lugs and the legs are selectively positionable longitudinally along the support bracket. A wide variety of hub configurations and diameters are accommodated by the subject invention. Attachment to two, or with an adapter to three lugs, is available as suits the wheel hub to be serviced.

Abstract: A tool for setting threaded anchors, having an elongated body with a longitudinal bore and a threaded shaft received in the bore and projecting beyond both ends of the body to form a nut engaging end and an anchor engaging end. The anchors to be set include an anchor frustum having a longitudinal threaded bore, surrounded by a soft sleeve. A pinway is formed in the body communicating with the bore, and a retaining pin, in engagement with the threaded shaft, projects laterally through the pinway, for preventing relative rotational motion between the threaded shaft and the body while allowing relative longitudinal motion. A nut engages with the nut engaging end of the shaft. The method of setting such an anchor is to insert the anchor, attached to the end of the tool, into a hole where the anchor is to be set. The nut is then rotated with respect to the shaft, while preventing the rotation of the shaft and the body, so as to draw the frustum into the soft sleeve until the anchor is affixed within the hole.

Abstract: A tool adapted to facilitate the removal of elements such as pin grid arrays, pin grid array sockets, chip carriers, and chip carrier sockets which have been soldered into plated through holes or similar elements of printed wiring cards. A platform is provided mounting two pivotable arms which are used to grip onto the element to be removed while a number of spring loaded posts are compressed to provide connection to the printed wiring card on which the element to be removed is attached. The entire assembly is then placed in a high temperature environment causing the solder to melt at which time the compressed springs, associated with the posts, effectively expand withdrawing the element from the printed wiring card.

Abstract: A tool for straightening an arched pin into one of a pair of slots orthogonally defined in a screw head including an elongated rod-like member, means mounted on one end of the rod member for applying an axially directed force, an elongated sleeve mounting the rod-like member for reciprocal movement within the sleeve and having an end adapted to seat about the screw head, a tool handle mounted at one end of the sleeve adjacent the force applying means and a pin setting tool bit connected to an opposite end of the rod like member being indexible with one of the slots in the screw head and for delivering an impact force to the arched pin in the other screw head slot.

Abstract: A nuclear fuel rod loader for pulling fuel rods into a fuel assembly skeleton has a rod gripper with slots defining fingers. The rod gripper passes through the grids of the skeleton on its way to a fuel rod magazine. An inner shaft of the rod gripper spreads open the fingers to engage a groove in the cavity of the end plug of the fuel rod. The rod gripper is retracted, pulling the coupled fuel rod into the fuel assembly skeleton. The rod gripper has a chamfer surface at the closed slot end of each slot to avoid the rod gripper damaging a dimple during entry into the grids of the fuel assembly skeleton. The rod gripper has a stress relief surface at the closed slot end of each slot to avoid failure in the flexing fingers.

Abstract: A chuck includes a support and a plurality of pairs of oppositely disposed jaws with the jaws being movable to a position with each pair of jaws disposed on diametrically opposite sides of one element of an assembly. A motor moves selected pairs of the jaws into contact with the element and an additional motor moves the selected pairs of jaws and element away from the support to extract the element while at least one of the pairs of oppositely disposed jaws are maintained in position on the support to secure a second element of the assembly against movement while the selected pairs of jaws extract the one element.

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 double-pipe combining device comprising a revolver, at least one pipe combining means arranged on the outer surface of the revolver, and at least one cam mechanism, the pipe combining means comprising a first pipe receiving means, a second pipe receiving means, and a slidable pipe pusher, the cam mechanism being arranged to move the pipe pusher forward and backward within one rotation of the revolver, the double-pipe combining device being arranged to automatically combine the larger-diameter pipe and smaller-diameter pipe, through the reciprocating movement of the pipe pusher, only by placing those pipes respectively in the two pipe receiving means and rotating the revolver.

Abstract: A machine used for operations of pull-on and pull-out of a water dampener cover to and from the rubber roller of an offset printing press includes a roller holding apparatus for firmly holding the rubber roller constituting a main part of dampening roller or the used dampening roller with a water dampener cover fitted over the surface of the rubber roller and a cover pulling apparatus for pulling the water dampener cover fitted onto the one end of the rubber roller or the water dampener cover fitted over the whole surface of the water dampening roller in the axial direction of the rubber roller while grasping the one end of the water dampener cover to fit the cover over the rubber roller or remove the former from the latter.

Abstract: Apparatus for effecting the mounting and removal of a hub from a shaft is disclosed. The combination of a piston and cylinder is designed relative to the hub to be mounted to the shaft such that by securing them in one position the hub may be forced onto the shaft utilizing pressurized fluid and by securing the piston and the cylinder in another position the hub may be forced from the shaft using a pressurized fluid.

Abstract: Both an apparatus and a process for pulling tubes from a tubesheet with two relatively movable gripping means are disclosed herein. The apparatus of the invention is a tube puller which has upper and lower gripping means for gripping the section of the tube surrounded by the tubesheet. The two gripping means are mechanically linked together by means of an extendable connecting assembly. This assembly includes an outer sleeve where the lower gripping means is located, and a middle sleeve where the upper gripping means is located which is slidable a predetermined distance within the outer sleeve. In the process of the invention, a tube puller as heretofore described is inserted into the mouth of a tube. The lower gripping means is then engaged to the mouth of the tube. The upper gripping means is then engaged in a section of the tube beyond the tube mouth with the extendable connecting assembly in a contracted position.

Abstract: An installation for assembling two parts adapted to be telescoped one into the other, of which at least one part has a radially directed projection which, during assembly of the parts, engages into a correspondingly constructed recess of the other part, whereby the first part is nondisplaceably arranged and the second part is aligned with the first part, and finally the second part during rotation threof about its longitudinal axis and simultaneous axial displacement is assembled with the first part; the second part is thereby positioned by a retaining mechanism which positions the second part with respect to the first part in relation to the joining axis while a threaded spindle adapted to be driven by a motor and held by a rigid support cooperates with the second part by way of a spring-loaded compression mechanism; the threaded spindle is thereby equipped with a slippage clutch.

Abstract: A tube pulling apparatus is made up of a frame for receiving a tube, a pair of arm assemblies movably supported by the frame, and a pair of tube gripping assemblies rotatably supported by the arm assemblies and carried by the arm assemblies for movement into and out of engagement with the tube. The tube pulling assembly further comprises motive apparatus connected to each of the arm assemblies for moving the arm assemblies to move the tube gripping assemblies into engagement with the tube, and a spring is connected to the arm assemblies for biasing and urging the arm assemblies to move the tube gripping assemblies out of engagement with the tube. A drive assembly is connected to the tube gripping assemblies for rotating the tube gripping assemblies to pull the tube.

Abstract: Apparatus for removing an automobile hinge pin by disabling a spring clip and thereafter driving the hinge pin outwardly of the automobile hinge assembly while supporting the hinge assembly against bending forces that would otherwise flex the hinge assembly as the hinge pin is driven outwardly.

Abstract: A method and apparatus for installing an apertured moldboard bit to a similarly apertured moldboard. The bit installing tool includes a handle operated winch drum mounted to a winch frame for winding and unwinding a cable. The winch frame is connected to a base frame and the base frame secures the tool to the moldboard. The cable has means at a free end for releasably securing the bit for hoisting to the moldboard. The bit installing tool is affixed to the moldboard. The cable is extended from the tool and threaded through apertures in the moldboard and the bit. The cable is secured to the bit, the bit is hoisted to the moldboard by winding the cable about a winch drum, and the bit is bolted to the moldboard. Bit removal may be accomplished by reversing the above steps.

Abstract: A trolley runs along a railway track and a member on it strikes railway clips and removes them from rail-securing positions. The clips are of a kind having a first portion substantially parallel to the rail and driven into a projection beside the rail, a second portion bearing downwardly on the rail flange and a third portion, further from the rail than the first portion, bearing downwardly on an unyielding surface.

Abstract: A tool for assembling duct sections wherein a gear is rotatably attached to a housing and engages an apparatus with at least one rack. The tool has a pair of duct engaging clasps, at least one of which is integrally attached to the rack apparatus. The other duct engaging clasp may be attached to the housing or attached to a second rack which opposes the first. To assemble and join duct sections, one duct engaging clasp engages one section of duct and the other engages a second section of duct. The gear is then rotated such as to draw the duct engaging clasps together and thereby the duct sections for permanent fastening. After fastening, the gear is rotated in a direction so as to separate the duct engaging clasps. The duct engaging clasps are then disengaged.

Abstract: Apparatus for replacement of a winding bobbin on a shaft comprising a controllable arm for transport of bobbins to and from the shaft. The arm has a first number of grip members and a second number of grip members. The first number of grip members is symmetrically and peripherily placed relative to the arm and intended for engaging a bobbin. The second number of grip members is symmetrically and centrally placed relative to the arm and intended for fastening at a locking mechanism associated with the shaft, the locking mechanism being in a locking positon or a neutral position in dependence on the operation of the second number of grip members.

Abstract: An encapsulating block encasing a projecting workpiece, the block having a plurality of parallel slots in opposed side walls, the slots in each side wall extending alternately from opposed side edges of the side wall and terminating in a bearing face in the region of a plane passing through the workpiece and a frangible cross-sectional area of the block. Apparatus for use with the block consists of a pair of dies each having a plurality of parallel projecting tines receivable longitudinally in the slots to meet the bearing faces whereby on moving the dies together the block will fracture in the frangible cross-sectional area.

Abstract: A stator vane is removed from an arcuate casing by placing a conforming mold over the vane airfoil with portions thereof extending axially on either side of the airfoil to provide driving surfaces, and repetitiously imparting a precisely directed impact to the driving surfaces to move the vane circumferentially within the casing. Impact to the driving surfaces is made by way of an elongated arm which is supported at its one end so as to be pivotable about the axis of the casing, and whose other end is bifurcated to straddle the vane row and impinge against the driving surfaces. In this way the individual vanes may be removed from a single stage without incurring significant damage thereto and without removing any vanes of adjacent stages.

Abstract: An apparatus and method for removing and reinserting base member segments in an arcuate slot in an engine part where each base member separately includes blades or stators comprising holding the engine part in place while manipulating fingers on an arm into an interfitting abutting relationship with most of the blades on a base member and applying a torque force to the base of the blades to move a base member relative to such arcuate slot.

Abstract: For use in combination with a work roll mounted on the end section of a shaft by means of a sleeve member axially inserted in a wedged operative position therebetween, a fluid actuated tool assembly removably engageable with the shaft and sleeve member for axially moving the sleeve member into and out of its operative position. The tool assembly preferably comprises a piston contained in a cylinder which during use is movable axially relative to the piston. At a first end of the tool assembly, the piston is removably attachable to the shaft and the cylinder is arranged to abut the sleeve. At an opposite second end of the tool assembly, the cylinder is removably attachable to the sleeve, and the piston is arranged to abut the shaft. The piston and cylinder have cooperating internal surfaces arranged to define a chamber adapted to receive fluid under pressure, the said fluid pressure being operative to move the cylinder relative to the piston.

Abstract: Cylindrical water tanks, such as used for water softeners, inherently corrode at the bottom and herein is taught that the tanks are repaired by removing the bottom dish with the use of a novel tool that moves around the tank and bears thereagainst with a substantially uniform force thereby readily following the tank's contour, by sandblasting the interior for cleaning, by installing a new bottom dish to the cylindrical body with the use of a novel tool that automatically stops further penetration of the dish into the tank when a predetermined overall height of the tank is obtained, by welding the bottom dish to the body, by coating the interior with a non-corrosive plastic with the use of a novel spray gun apparatus that radially sprays the liquid plastic onto the inner walls of the tank as the spray nozzle moves axially therein and then the spray nozzle is adjusted to cause the spray to form an upward diverging cone to coat the underside of the top cover, and finally by allowing the plastic to harden.

Abstract: Tilt-up building wall panels are fitted with inserts which are cast into the panel. The inserts have threaded openings into which a collapsible split bolt is inserted. The bolt is spread apart with a longitudinally inserted wedge to secure its exterior thread to the interior thread of the insert. The panel is erected into its upright position with suitable hoisting equipment engaging the protruding portion of the split bolt. The split bolt and the hoisting equipment are removed from the ground with a ground release device that is raised overhead with extensions attached to the release device. The release device includes a support structure which has a flat end face that is positioned against the side of the upright panel and a linearly reciprocating release plate mounted to the support structure. The operator positions the release device so that the release plate engages a portion of the wedge and he then retracts the plate by pulling a suitably connected actuating cable from the ground.

Abstract: An apparatus for dismantling portable wooden platforms or pallets, that have become damaged during use, by removing the top and bottom deckboards from a plurality of stringers or runners. The deckboards are removed by moving the stringers between closely spaced cooperating ram members to effect the stripping of the deckboards from said stringers. The deckboards and stringers, that are salvageable, are then assembled as reconditioned platforms or pallets.

Abstract: A device for removing a cylindrical ignition lock bolt from a chamber formed in the steering column housing of the type wherein the lock bolt has extending therefrom a radially biased detent engaging a recess formed in the lock chamber wherein the device urges a pair of elongated shims to depress the detent from its engaging position to facilitate the withdrawal of the lock bolt from the chamber.

Abstract: Device for expanding ring-like support to increase diameter thereof comprises flexible expander band having overlapping end portions and forming closed loop of variable diameter. Expander band is positioned within ring-like support and functions to expand support. Motivating structure is fixed to one of overlapping end portions of flexible expander band and has rotatable pinion gear connected thereto. Gear rack is associated with other overlapping end portion of flexible expander band for movement therewith. Gear rack is in meshing engagement with rotatable pinion gear so that rotation of pinion gear shifts overlapping end portions of flexible expander band relative to one another to increase diameter of closed loop formed thereby.

Abstract: A boiler tube extractor comprising an elongated member which can be coupled to and extend forwardly of the tube sheet of a boiler. An actuable pulling means can be coupled between the end of the elongated member remote from the tube sheet and the tube which is to be extracted. When the means is actuated, the boiler tube is extracted.