Abstract: The process of the invention is designed for producing wheel rims having a snap-in groove on one side of the rim, in which a blank having an inner coned part for forming the eventual wall of the snap-in groove in the completed wheel rim and with an outer cylindrical part joined up with the smaller end of the coned part is formed on a spinning lathe using spinning rollers by outwardly bending and flaring the outer cylindrical part. In the process the blank is slipped onto a mandril which has a coned outer face to be in line with the coned form of the blank, while the outer cylindrical part of the blank stationarily extends out beyond the end of the mandril.

Abstract: An automatic closing machine for sheet metal joints in sheet metal ducts or the like consists of a powered rotary hammer for continuous application of a hammering force to the edge portion of a joint to be formed to fold such edge into a closed joint. A supporting frame with a vertically adjustable support permits varying the relative vertical spacing of the edge of the duct and the rotary hammer. Stops locate the duct longitudinally to set the length of the joint relative to the location of the end connecting edges of the duct. Pneumatic clamps secure the duct accurately for forming the joint by the rotary hammer. A track supports the rotary hammer for longitudinal movement and an automatic traversing mechanism moves the rotary hammer therealong. The traversing mechanism automatically moves the rotary hammer back and forth along the track. The vertical adjustment locates the edge of the unformed duct properly relative to the path of movement of the rotary hammer for any selected duct size.

Abstract: A mechanism for locating a hollow tubular can body relative to an internal support mandrel including a resilient member adapted to bear against a portion of the can body in order to positively locate same. Also included is a fixed relationship between the mandrel and support apparatus located on the machine whereby the biasing of the can body toward said support apparatus acts to adjust the axial position of the can body with respect to at least one of its surfaces.

Abstract: A hydraulic control circuit (10) for operating a loader (12) of a machine for splining an annular thin-wall sleeve of a power transmission member is disclosed as including valving (116) for communicating supply and return conduits (102,116) with load and unload cylinders (14,16) to provide loading and unloading movements. Load and unload valves (118,120) of the valving have load cycle positions where the load cylinder drives both the loading and unloading members (26,28) which clamp a thin-wall member during such movement to provide loading thereof for splining. In an unload cycle position of the valves, both the load and unload cylinders are hydraulically driven in an unloading direction opposite to the loading movement. The loading and unloading members (26,28) are moved away from each other by their associated cylinders in an index cycle of the valves to permit indexing of a load table (30) under the operation of an index valve (162) of the circuit.

Abstract: A loader (12) for a spline rolling machine wherein die and mandrel teeth (26,42) mesh with the thinwall sleeve (44) of a power transmission member (30) located therebetween to form splines therein is disclosed as including a loading member (58) with a locator (68) on a rotatable clamp (66) thereof and as including an unloading member (60) having a depression (72) that receives the locator (68) so as to permit clamping of an end wall (46) of the power transmission member (30) in an accurately located relationship while still ensuring disengagement during unloading upon movement of the loading and unloading members (58,60) away from each other at an associated load table (36).

Abstract: A bezel installation tool is disclosed for blind securing bezels in a panel. The tool includes a rotary striker, bezel holder and load spring. As tabs on the bezel are bent over by the striker, the holder and spring clench the bezel about the edge of the opening.

Abstract: An improved expander of this invention is used for expanding tubes into tube sheets and flaring the ends extending therefrom, such as is common practice in the manufacture of boilers. The improved expander includes both straight rolls for expanding the tubes and tapered rolls for flaring the tube ends. The rolls are carried by a cage that encircles a tapered mandrel, which when forced through the cage, causes the rolls to move relatively outwardly to deform or expand the tube. The expander also includes a thrust member that has an end that is engageable with the face of the tube sheet and a stop member carried by the cage that engages the thrust member, when the rolls have entered the tubing to the proper distance, to deform the tube the desired amount as well as flaring the ends to the proper position.

Abstract: Collar forming apparatus for forming an upstanding flange around an existing hole in a tube or plate comprising a pair of forming members mounted on and movable axially and radially with respect to the forming head between retracted positions and extending collar forming positions displaced axially and radially away from the retracted positions wherein at least portions of the forming members underlie the edge of the wall surrounding the opening. The forming members are moved to their collar forming positions by a wedge member that is movable axially with respect to the forming head to a predetermined axial position. Abutment means in the form of cooperating surface portions on the wedge member and the formation means acts between the wedge member and the formation means to impart radial and axial forces on the formation means when the wedge member is moved to its predetermined axial position to move the forming members to their collar forming positions.

Abstract: The invention relates to a device for forming a collar around a hole in the wall of a pipe. The device comprises a rotary body (8) which in a plane perpendicular to the rotary shaft is elliptical in cross-section and in the plane of the rotary shaft substantially circular in cross-section. The body is provided with curved support surfaces (12) located in the plane of the rotary shaft, collaring means (14) being movable along said surfaces from an inserting position adjacent to the rotary shaft to a collaring position in a point on the body with the biggest elliptical cross-section.

Abstract: A generally dome-shaped end closure for a receptacle, such as, the bottom end wall of a beverage container is roll-formed in a closely coordinated sequence of steps wherein the receptacle is fixed in position so that the external surface of the end wall to be formed is disposed in facing relation to a yieldable support, and rotatable bearing surfaces are simultaneously advanced into engagement with the end wall while being continuously rotated about a common axis whereby to form one or more annular ribs in the end wall while forcing the end wall to assume a generally convex or dome-shaped configuration as it is expanded outwardly against the yieldable support.

Abstract: An integral lubricating nipple is formed on a tubular member, first, by pressing a conically shaped hollow lug outwardly from the tubular member and then by applying rotatable pressure jaws against the conically shaped lug to provide the finished surface configuration of the nipple. While the pressure jaws are shaping the lug, a punching die cuts a lubricating bore through the outer end of the lug into its hollow interior. Compressed air can be supplied for clearing any material particles resulting from the punching of the lubricating bore.

Abstract: A tube expander having a stop collar for limiting the axial movement of the tube end relative to the expander to prevent damage to the tube end. The stop collar is comprised of a hollow stop collar body having the end adjacent to the tube end slotted to slidingly receive a pair of stop members that can be moved relative to each other to vary the size of the aperture extending through the stop collar body. The stop collar members substantially encircle the cage and have surfaces thereon that engage the end of the tube.

Abstract: Disclosed is a tube expander in which a mandrel itself is in the form of a short metal bar and the mandrel is fitted into a cage having loosely fitted therein a plurality of rollers adapted to perform a tube expanding function. The forward end of the mandrel includes a threaded portion formed in the outer surface thereof and engageable with a threaded guide disposed inside the forward end portion of the cage and adapted to be rotatable with the cage and slidable axially thereof, and the rear end of the mandrel is engaged with a mandrel drive which axially slidably rotates the mandrel. A suitable number of shanks may be added to the mandrel drive as occasions demand, whereby the desired tube expanding operation can be performed without the need to apply any propelling force to the mandrel drive but simply by externally applying a turning force to the mandrel drive or the shanks.

Abstract: A tube expander of the roller and mandrel type for expanding tubes within tube sheets having a housing assembly which includes a bearing mounted stop collar having a plurality of load-absorbing fingers provided with arcuate faces for limiting the axial position assumed by the tube relative to the tube sheet during the expansion of the tube. The arrangment includes a provision for predimensioning the portion of the tube which is ultimately to be exposed from the tube sheet whereby spacer members of selected thicknesses may be removed and installed on site.

Abstract: A remotely operated tool and tool support for positioning heat exchanger tube ends within a tube sheet of a steam generator and expanding the tube end into intimate contact with the tube sheet. The tool includes a tool head for insertion into the vertically extending tubes and a drive means which is supported horizontally by the tool support. The tool head is supported for vertical movement with respect to the drive means and right angle gear means are interposed therebetween in a vertically movable mount to permit such relative movement. Switch means responsive to the relative positions of the tool head, drive means, and right angle gear means indicate each is in a proper position to initiate or terminate the operation of the tool.

Abstract: A necking-out tool for forming cylindrical nipples or necks on the circumferential surface of pipelines, containers and the like. The tool is provided with a screw plug having a hook-shaped forming head and a thrust sleeve fitted with a coaxial downholder flange cooperating with the forming head and the screw plug. The thrust sleeve has a hollow cylindrical interior corresponding to the forming head for the reception of the formed neck. A holding appliance resembling tongs is connected to the downholder flange and the thrust sleeve by a hinge. The holding appliance is adapted to be applied at right angles or from the side of the pipeline. One jaw of the tongs terminates at the hinge and the other jaw forms a trough-shaped support for the pipeline on the side opposite the hinge.

Abstract: A method of expanding a tube into engagement with a header wherein the expander is permitted to move longitudinally a predetermined amount relative to the tube while the expander is being rotated and expanding the tube into engagement with the header. The tube expanding apparatus includes a rotatable expander for insertion into the tube to be expanded, a stop collar that engages the header, a thrust collar that is fixed relative to the expander and a spring disposed between the stop collar and thrust collar permitting the thrust collar and expander to move relatively into the tube as the expander is rotated.

Abstract: An assembly for forming a ferrule on a tube, pipe, conduit or the like has a housing, a transverse bore extending through the housing with a medially disposed annular die surface formed therein, the section of the bore facing the annular die surface is threaded to receive a ferrule forming element which can be threaded towards and away from the annular die surface and will form a cavity with the annular die surface for holding lubricant therein when the tube is positioned in the transverse bore so that it extends into the threaded section of the bore, the section of the bore on the side remote from the annular die surface has a plurality of annular channels which form a labyrinth seal with the tube in assembled position in the transverse bore and act to hold the tube and to control the leakage of lubricant therefrom.

Abstract: An apparatus for expanding an end portion of a tube positioned within an opening defined by an outer member is disclosed. Such apparatus comprises a generally elongated first housing having one end portion adapted to be inserted into the tube including a plurality of rollers, mounted in the housing for expanding the end portion of the tube outwardly in engaged relation with peripheral portions of the outer member forming the opening and for developing forces directed axially into the tube. A mandrel having a taper opposite that of the rollers is positioned therebetween and inserted in the first housing to operatively cooperate with the rollers to outwardly expand the tube and develop generally axial and inward forces. A second housing is adapted to be securedly positioned along pre-selected locations of the first housing and having at least a first open end portion which faces the outer member and the end portion of the tube.

Abstract: A tool assembly for forming internal threads on the interior surfaces of tubular structures which comprises a substantially cylindrical tool holder defining circumferentially about one end thereof, a plurality of disc-shaped forming edges, said tool holder adapted for rotational contact with a tubular workpiece, a rotating means located in operative contact with said tool holder, said rotating means situated for longitudinal reciprocation along an inclined track, a workpiece securement means comprising opposed clamps or the like located on a base structure and adapted to secure said workpiece in axial alignment with said tool holder, and a track comprising paired track members or rails associated with said workpiece securement means, wherein said securement means and said track are inclined with respect to the horizontal whereby said workpiece is apically situated with respect to said track to enable said tool holder to traverse the interior of said workpiece while moving on said track.

Abstract: An apparatus for flaring plastic tubing comprising a motor and speed reducing unit mounted on a slide member for relative movement towards and away from a set of stationary die members in which various diameters of plastic tubing may be inserted. A flaring head is mounted on the output shaft of the speed reducing unit in alignment with the central axis of a tubing positioned in the dies. The maximum forward and rearward movement of the slide member is adjustable so that the necessary movement for producing the desired flare on various diameters of tubing can be produced.

Abstract: The method disclosed herein briefly includes the steps of (1) forming a pair of nestled cup-like pulley hubs having radially extending flanges in side-by-side relationship and (2) rotating the nestled hubs about a rotating axis while simultaneously urging a tapered projection on the inner surface of a rotatable, annular forming tool between the side-by-side flanges to spread the flanges and form a V groove with only minor relative rotary motion between the flanges and forming tool in their areas of contact. By having the working portion of the forming tool formed on the inner portion of a rotatable, annular tool, relative rotary movement between the flanges and tool and hence galling of the flanges is kept at a minimum. The tool disclosed herein is an annular groove forming tool having the working portion thereof formed on the inner surface of the tool, the tool including the means for mounting on the same on a spinning lathe so that the tool can be used while the pulley is rotated on the lathe spindle.

Abstract: A necking-out tool for forming projecting cylindrical nipples or necks on the circumferential wall of a pipe container or the like. The tool has a screw plug having a hook-shaped forming head and a thrust sleeve provided with a coaxial downholder flange for cooperation with the forming head and the screw plug. The thrust sleeve also has a hollow cylindrical interior corresponding to the contour of the forming head for the reception of the formed nipple or neck. A non-rotatable, telescopic guide means is associated with the thrust sleeve for mounting a torque converter on the screw plug.

Abstract: A manually operable tube flaring tool for providing a partial flare in the end of a deformable tube. The tool includes a flaring head defining an annular flaring surface and a cylindrical pilot portion projecting axially from the flaring surface to be received in the tube end for guiding the flaring surface axially against the distal end of the tube during the flaring operation. The tool further includes a support for fixedly positioning the tube end coaxially adjacent the flaring surface of the flaring head. The support defines an improved recess configuration providing a controlled buckling of the tube end by the forceful engagement therewith of the flaring surface wherein the buckled tube end defines preselected frustoconical inner and outer portions. The support may further define a conventional single flare recess opposite the partial flare recess whereby the tube may be used selectively to provide either of the partial or single flare flaring operations.

Abstract: A forming tool comprising a rigid frame, clamping jaws on the frame for clamping a hollow tube with the end to be formed in a position of alignment with a forming head mounted on the frame for linear movement toward the end of the clamped tube and for rotation about the axis of the tube, said clamping jaws containing an opening for receiving the forming head as it is advanced into engagement with the tube, and said forming head containing a fustrum conical forming cavity for engagement with the end of the tube within which the end of the tube is wholly formed. A pilot is provided within the forming cavity for maintaining the concentricity of the tube and forming cavity during the forming operation. The entire surface of the forming head is coated with a non-electrolytically applied surface coating of nickel.

Abstract: A fastening device for affixing trim pieces to a backing piece. The fastening device comprises head forming tools for upsetting projections of the trim piece to secure them to the backing piece. In addition, a compression member is associated with the forming tool and is adapted to put a desired degree of precompression on the backing piece during the upsetting operation.

Abstract: A cross-rolling machine including a device for holding a workpiece between the rolls during a forming operation, the device comprising a pair of guide boards each mounted on a frame assembly including a guide bar, so as to be arranged one on each side of the workpiece when the machine is in use, each guide board being movable from the machine frame integrally with its frame assembly by sliding movement of the guide bar along a guide track on the machine frame.

Abstract: A machine bed supports stationary and rotary fixing means that are aligned for receiving bar stock therebetween. Electrical or electromechanical control means are provided for selecting and effecting, via a motor-driven step-down gear, exactly a predetermined amount of rotation of the rotary fixing means. Various detachable matching pieces hold opposite portions of the bar stock within the stationary and rotary fixing means, respectively, while the material is worked. Openings in the matching pieces positively fit the bar stock. The outer contour of the matching pieces permits insertion in the stationary and rotary fixing means for positive fit therein. A preferred embodiment of the apparatus serves the purpose of cold twisting square steel bars either singly or, for obtaining volutes, in bunches. Removal of worked bar stock is facilitated by a handwheel enabling the operator to manually counter-rotate the rotary fixing means by a selected small angle.

Abstract: A manually operable tube flaring tool for providing a partial flare in the end of a deformable tube. The tool includes a flaring head defining an annular flaring surface and a cylindrical pilot portion projecting axially from the flaring surface to be received in the tube end for guiding the flaring surface axially against the distal end of the tube during the flaring operation. The tool further includes a support for fixedly positioning the tube end coaxially adjacent the flaring surface of the flaring head. The support defines an improved recess configuration providing a controlled buckling of the tube end by the forceful engagement therewith of the flaring surface wherein the buckled tube end defines preselected frustoconical inner and outer portions. The support may further define a conventional single flare recess opposite the partial flare recess whereby the tube may be used selectively to provide either of the partial or single flare flaring operations.