Abstract: Apparatus that is used to expand a collapsed hollow core of a damaged roll which includes an expandable bullet, uniformly expandable along its length by hydraulic cylinders, after being pulled into the core by means of a hollow piston ram and a drawbar. The bullet has an unexpanded cross-section of a football-like shape the area of which is about 10% less than the cross-sectional area of the hole in the undeformed core, allowing over expansion of the bullet which pulls the sides of the core in to form connecting chords. Add-on shells for larger cores are adaptable to the expandable base bullet.

Abstract: A coupling for a pipe lap joint is disclosed in which a sleeve has a larger diameter at one end and a smaller diameter at the other end with means for stretching the sleeve around the pipes. The sleeve has a radially projecting channel-shaped sector and force applying means engages the sector to stretch the sleeve around the pipes. The channel-shape sector is uniform in cross section along the length of the sleeve and the larger end of the sleeve is axially offset from the smaller end. An improved method for making the pipe coupling is disclosed in which a sleeve blank is disposed in an external die and stretched outwardly by an expanding mandrel.

Abstract: An alignment system for non-adjustable motor vehicle front end suspensions, such as those employing McPherson struts, has a support assembly anchorable relative to an adjacent vehicle being repaired, with a connector arrangement provided on the support assembly for permitting one of the struts to be restrained relative to the support assembly while the other of the struts is being pulled into proper position. Once the struts have been correctly positioned in accordance with factory specifications, the sheet metal forming the fender wells, and the like, can be welded or bolted in place while pressure is maintained on the struts so as to re-unitize the vehicle body portions with which the suspension system is employed.

Abstract: A tool for insertion into a core including a pair of pivotally connected levers having forwardly-extending jaws for insertion into the core and rearwardly-extending actuating portions to which the opposite ends of a flexible-wall fluid actuator are fixed for applying force to the actuating arms and pivotally expanding the jaws.

Abstract: A tool for forming substantially rectangular cross sections on conduits. Two mateable collars are disposable about the exterior of a conduit and have forming surfaces which can be pressed against the conduit's wall to predetermined extents to cause the conduit to assume the desired outside rectangular dimensions. Such pressing is provided by two threaded fasteners, each of which extend through one of the collar members and into threaded engagement with the mateable collar. The assembled collar configuration may be disengaged from, rotated about, and reclamped on the exterior of the conduit so as to provide uniform wall formation if the shape of the desired conduit permits such collar rotation. To assure complete contact between the conduit's exterior and the forming surfaces of the collar, two wedge members are axially inserted in the conduit's opening.

Abstract: A stator press including a coil forming device and a coil former, the coil forming device having a plurality of blades arranged to be inserted into the slots of a prewound stator and moved radially outwardly, each blade being independently moved by a separate hydraulic piston and cylinder assembly, the hydraulic piston and cylinder assemblies being connected to a common source of hydraulic fluid for simultaneous movement, the radial movement of the blades seating the coils in the slots of the stator to make room for more coils. The coil forming device being supported on a press which includes a coil former to bend the loops of the coils outwardly away from the opening in the stator.

Abstract: The machine comprises a fixedly mounted holder maintaining the pipe in a position so that the end thereof which is to be formed extends in a horizontal plane. Two complementary or mating pins are insertable in this end of the pipe. Supporting and driving means are provided for moving the two pins in opposite directions for a distance corresponding to the deformation to be given to this end of the pipe.

Abstract: A hole expansion mandrel assembly for expanding holes through work pieces including a drive pin with a leading pulling section and a trailing driving shoulder; and a collet removably carried on the drive pin and abutting the driving shoulder where the collet has an expansion surface to enlarge the holes as the drive pin is used to force the collet through the holes. The drive pin may incorporate a fastener trailing the collet. The method of using the apparatus is also contemplated.

Abstract: Internal mandrel for use in bending the ends of pipes, wherein a hydraulic cylinder actuates a system of levers and toggles to apply force across the interior of an end of a pipe in the direction in which the pipe is to be bent to prevent distortion and collapse of the pipe during bending adjacent to its ends.

Abstract: Apparatus for removing anomalies from pipe comprising an elongated framework, an elongated carriage reciprocally mounted on said framework, means for supporting an elongated pipe section spaced over said carriage for reciprocating movement with said carriage and rotational movement about the longitudinal axis of the pipe section, means for exerting force in a radially outward direction against the internal walls of a pipe section reciprocated by said carriage into a position surrounding said force exerting means, and extensible means connected to said force exerting means facilitating reciprocal movement of said force exerting means within a pipe section positioned therearound.

Abstract: Force maintaining toggle systems wherein maximum or near maximum force is maintained by a series of step wise toggle engagements. The forces may be applied between spaced objects arranged oppositely or circularly.

Abstract: Disclosed herein is rectangular thin walled metal duct easily bendable without significantly changing the cross-sectional area at the bend. Also disclosed are methods and apparatus for forming this rectangular duct and flat/oval duct from round duct having grooves spiraling therearound.

Abstract: In accordance with the present invention there is provided a molded commutator having an improved form of anchoring tooth for each bar extending substantially the entire length of the bar for securing the latter to the molded hub. The invention involves an improved process of forming each anchoring tooth without the removal of any material and hence without wastage.

Abstract: A fastener/guide assembly and method including a fastener having a head, a bearing section to be extended through aligned holes in work pieces, and an engagement section opposite the head; and a guide member having a pilot section sized to extend through the holes to center the guide member in the holes, an expansion section trailing the pilot section sized to expand the holes, and locating means for locating the leading end of the fastener concentrically about the axis of the guide member so that the fastener follows the guide member through the holes.

Abstract: Apparatus for forming circumferential corrugations in a thin wall tube to produce a cylindrical bellows. The tube is supported on a rigid sleeve to prevent distortion, but is free to move axially as each corrugation is formed by an expanding mandrel which extends through a circumferential channel in the sleeve to form a complete ring. The mandrel is composed of interfitting wedge elements, alternate elements of which move radially more than the others to accommodate the expansion and contraction, a common multiple cam actuator providing the driving force on all elements simultaneously.

Abstract: A mobile base longitudinally slidably supports a platform and transversely supports an elongated winch cable and pipe reamer supporting trough, in elevated relation. Fluid operated cylinders moves the platform and axially aligns the trough with tubular members to be reamed. An elongated reamer moving rod is connected at its respective ends with winch cables in turn connected, respectively, with a pair of fluid motor sequence operated winches alternately pushing and pulling the rod and reamer into and out of tubular members.