Abstract: A modular system for producing triple-necked open ended containers includes three substantially identical necking modules each having the same frame and identical rotatable turrets which have a plurality of identical necking stations around the periphery. Each necking station includes an annular necking die and a platform and punch which are cam-operated to move towards and away from each other and are maintained in engagement with the cams by pressurized fluid. Each necking station also has a container pressurizing means in the form of an annular chamber which acts as a holding chamber prior to transmitting the pressurized fluid into the container.

Abstract: Plane, rectangular sheets (10) are moved through between a driven bending roll (32) and a plurality of back-up rolls (34) and are bent round the bending roll (32) by these rolls and a plurality of pressure rolls (52, 56) disposed behind the bending roll (32) and back-up rolls (34). The almost completely rounded sheet (10) is bent resiliently away from the bending roll (32) by a deflecting member (62) as a result of which the front edge (10a) of the sheet is prevented from re-entering the gap between the bending roll (32) and the back-up rolls (34) before the rear edge (10b) of the sheet has travelled through this gap. Then the deflecting member (62) is moved back into its position of rest so that the front region of the sheet (10) springs back in the direction of the bending roll (32) and as a result is again gripped by the bending roll (32) and the back-up rolls (34) and moved through between them.

Abstract: The method and apparatus for rolling a section of metal plate into a cylindrical pipe section wherein leading and trailing edges of said plate section are pre-crimped to the final desired radius of said cylindrical pipe section, feeding the leading edge of said plate section into a forming mill that includes an overhead mandrel having a radius approximating said final desired radius of said pipe section, forcing said mandrel to deflect along the length thereof during the forming of said plate section between said mandrel and a pair of driven bending roll means whereby said mandrel and said bending roll means are maintained at the same curvature throughout the length thereof and said plate section is uniformly bent along the length thereof to said desired final radius.

Abstract: Process of manufacturing brake shoes characterized in that a T section profile (1) is passed between a pair of rollers (6) and (7) of which one (6) is plain--and the other (7) of which has an annular groove (8), in which the stem (4) of the T (1) is freely disposed, the rolling of the upper and lower faces of the flange (3) of the T (1) being carried out between rollers (6) and (7). Thus, flange (3) becomes elongated and this elongation goes to the stem (1) of the said T in such a way that after the T emerges from between the rollers it adopts the curvature of the latter, whose external diameter is equal to the diameter (5') of the lower face of the flange (5) of the shoe. In another aspect of the invention, a brake shoe is formed by the method described above.

Abstract: A method of forming a sleeve of circular cross-section from a flat plate of predetermined shape is provided by which in a very simple, reliable and cheap manner a sleeve can be manufactured, the shape of which corresponds with a desired shape without an additional pre- or post process.In order to achieve the objects mentioned above a method as mentioned is provided in which the plate is pressed through a shaft enclosing the plate against and along a hollow mould wall having a shape corresponding to the shape of the sleeve to be made.Furthermore a device for carrying out the aforesaid method is provided characterized by a gap-shaped shaft, the width of which is smaller than twice the thickness of the plate, the outlet end of said shaft adjoining a fixed, hollow mould wall having a shape matching the shape of the sleeve to be manufactured, while at the inlet end it co-operates with means for pressing the plate through the shaft.

Abstract: A tube transfer assembly for a tube printer includes a rotatable mandrel wheel which successively moves the tubes to be printed to different stations of the tube printer; a plurality of mandrels mounted along the circumferential periphery of the mandrel wheel for holding the tubes thereon; a rotatable star wheel assembly including a plurality of pockets for successively supplying the tubes to a position at the free end of the mandrel at the 11:00 position of the mandrel wheel; a guide disc rotatable with the star wheel and having a plurality of circular apertures positioned about the periphery thereof in alignment with the pockets; a first pusher rod which successively pushes one end of each tube within one of the apertures at a first rotatable position of the star wheel to correctly configure such end of the tube in a circular configuration; a second pusher rod simultaneously moveable with the first pusher rod which successively pushes each tube onto the mandrel at the subsequent 11:00 position of the mandre

Abstract: The present invention relates to a method and apparatus for producing spacers or blocks preferably for use in pallet structures as supporting elements for the deck and/or as blocks between load deck and stringers, said blocks consisting of sleeves made from sheet metal. An elongate, substantially rectangular sheet metal blank (11) is fed into a nip (7) formed by at least two corrugated rolls (1, 2) with its main plane inclined to the plane passing through the axes of the rolls. The front end (17) of the blank (11) is fixed in a groove (12) in the surface of the roll (1). When the rolls (1, 2) are rotated, the blank (11) is shaped in the roll nip (7) and is rolled on to the roll (1). After the rolls (1, 2) have rotated at least one revolution, the ready-shaped block is withdrawn or pushed from the roll (1) in an axial direction.

Abstract: The method and apparatus for rolling a section of metal plate into a cylindrical pipe section wherein leading and trailing edges of said plate section are pre-crimped to the final desired radius of said cylindrical pipe section, feeding the leading edge of said plate section into a forming mill that includes an overhead mandrel having a radius approximating said final desired radius of said pipe section, forcing said mandrel to deflect along the length thereof during the forming of said plate section between said mandrel and a pair of driven bending roll means whereby said mandrel and said bending roll means are maintained at the same curvature throughout the length thereof and said plate section is uniformly bent along the length thereof to said desired final radius.

Abstract: The method and apparatus for rolling a section of metal plate into a cylindrical pipe section wherein leading and trailing edges of said plate section are pre-crimped to the final desired radius of said cylindrical pipe section, feeding the leading edge of said plate section into a forming mill that includes an overhead mandrel having a radius approximating said final desired radius of said pipe section, forcing said mandrel to deflect along the length thereof during the forming of said plate section between said mandrel and a pair of driven bending roll means whereby said mandrel and said bending roll means are maintained at the same curvature throughout the length thereof and said plate section is uniformly bent along the length thereof to said desired final radius.

Abstract: A torsion spring having a coiled portion and straight ends is formed on a spindle by a winding machine with the coiled portion being wound around the spindle. A transfer device for transferring the torsion spring to a spring feeding position in which the torsion spring is fed to a spring inserting device receives the torsion spring directly from the spindle and transfers it to the spring feeding position keeping the torsion spring in a predetermined orientation.

Abstract: A modular system for producing triple-necked open ended containers includes three substantially identical necking modules each having the same frame and identical rotatable turrets which have a plurality of identical necking stations around the periphery. Each necking station includes an annular necking die and a platform and punch which are cam-operated to move towards and away from each other and are maintained in engagement with the cams by pressurized fluid. Each necking station also has a container pressurizing means in the form of an annular chamber which acts as a holding chamber prior to transmitting the pressurized fluid into the container.

Abstract: The invention concerns an arrangement for the bending of laying tubes for wire-winding layering apparatuses, in which the molding body that determines the form of the laying tube runs essentially horizontally and is rotatably supported, such that a better manipulation of the highly heated laying tube is achieved during bending. The molding body also consists of two drums, one inserted into the other, the outer one of which has a lateral edge that matches the laying tube form desired and the two drums have a generated surface that matches the laying tube form desired. Together, they serve as the stop surfaces for the bending process. In this manner, the bending of the laying tubes is considerably simplified and a precise laying tube form is achieved.

Abstract: A method and apparatus for imparting a three-dimensionally curved configuration to a straight elongated element wherein one end of the element is removably supported with its axis coincident with a reference axis. The element is partially pre-bent away from the reference axis into conformity with a two-dimensional first guide path. Thereafter, the pre-bent element is bent into conformity with a three-dimensional helical second guide path.

Abstract: A method and apparatus for automatic rear loading of mandrel type tube benders. The bender includes a base, bending head at the forward end of the base, carriage for positioning a tube with respect to the bending head, and a mandrel rod supporting on its front end near the bending head a mandrel. The improvement includes the use of two separate clamps for gripping the mandrel rod with respect to the base, one clamp being located near the rear end of the mandrel rod and the other clamp at an intermediate point on the mandrel rod spaced from the first clamp a distance at least equal to the length of the tubes to be bent. The clamps selectively grasp the mandrel rod, at least one clamp grasping the rod at any given time, to allow a tube to be loaded onto the mandrel rod while another tube is being bent.

Abstract: There is disclosed a method of rolling flat plate using a cylindrical mandrel and a plate gripper to form a pipe having a low pipe diameter to plate thickness ratio by forming a notch or recess in the plate edge to be gripped so that the combined radial dimension of the notched plate edge and gripper is no greater than the plate thickness.

Abstract: A tube feeding device, particularly for use in a bending machine, comprises two units spaced from one another at a predetermined distance to form a tube magazine therebetween. A carriage with a recess to receive one individual tube is positioned at the bottom of the tube magazine. A chain conveyor is provided in the device adapted to receive individual tubes from the recess and transport the tubes toward the bending machine. The carriage is adapted to move towards and away from the chain conveyor to deliver the individual tube to the conveyor which is provided with a plurality of grippers adapted to carry the tubes and to advance them in a vertical direction.

Abstract: A method and apparatus for bending straight pipe sections which are of predetermined length including cutting at a preset angle, bending, and calibrating to form a finished elbow.

Abstract: This invention relates to an improvement in an externally held cylindrical expander for tubular ware with a central support for radially adjustable, spreading rest means and sector-shaped longitudinal elements borne by said rest means, in particular for the treatment of the tubular ware with liquid treatment means, the longitudinal elements extending between bodies tapering in the longitudinal direction, mounted between the ends of the support, and acting as entry and exit means, the improvement comprising: (a) rollers with axes of rotation transverse to the ware transport direction T mounted on the outsides of the individual longitudinal elements in transverse planes of the expander, (b) the rollers located in a common transverse plane covering the gaps between rollers located in an adjoining transverse plane, (c) the rollers from adjoining transverse planes mounted on one longitudinal element overlap by their ends at the center of the longitudinal element, (d) the other ends of the rollers project beyond th

Abstract: A tube bending apparatus comprises an elongated mandrel having a length at least three times the length of a tube to be bent in the apparatus. A first mandrel holder is arranged at the rear end of the mandrel and a second mandrel holder is forwardly spaced from said first by a distance slightly greater than the length of a tube.

Abstract: A tube bending machine comprises a tube bending mechanism per se for bending a front portion of a tube inserted therein and fluid operated units for moving a mandrel in axial direction into the tube to be bent and for withdrawing the mandrel through a rear end of the tube after bending. A tube magazine is located to one side of the bending mechanism and a tube depositing station for receiving the bent tube is located at the other side thereof.

Abstract: A pipe bending machine has a pipe bending mechanism which receives lengths of pipe to be bent from a pipe magazine located laterally of one side of the mechanism. A pipe transfer device is interposed between the bending mechanism and the magazine and transports pipe length from the magazine to the bending mechanism, for which purpose it is so constructed that it can pivot in a plurality of mutually inclined planes.

Abstract: An apparatus is disclosed for nesting and concurrently controlling the rotational alignment of nested spring elements. A mechanically programmable timing chain determines the arrangement of nested curvilinear spring elements and the number of nested spring elements within a storage configuration.

Abstract: An arrangement for positioning a workpiece having a portion to be located in a predetermined orientation relative to a work station, includes a device for displacing a workpiece so that the above-mentioned portion thereof moves along a predetermined trajectory. A sensing device shuts down the displacing device when the above-mentioned portion of the workpiece is in a desired predetermined orientation relative to a work station.

Abstract: In the automated manufacture of helical coils from sheet-metal blanks, each station of a rotatable set or carrousel of winding stations picks up a flat elongated blank from a stationary loader and securely grips and locks one end in an angled position against a slightly-tapered arbor whose subsequent rotation then causes the blank to become tightly wrapped helically about the arbor while retractable ironing plates stretch-form it and while a second locking mechanism positions the opposite end of the blank untl wrapping is completed. The single thrust of a shaped actuating rod causes a locking member to both position itself and move into a clamping relation with the one end of the blank and the arbor, and both the second locking mechanism and the ironing plates are of toggle-type constructions which enable them to hold securely until positively released.

Abstract: A curling die apparatus adapted for use in a press and having a die member with a semi-cylindrical cavity adapted to be mounted on one press member and a sheet engaging means on the other press member for advancing a sheet of material edgewise along a path tangent to the inlet edge of the semi-cylindrical die cavity to progressively deflect the sheet material into a curl. The curling die apparatus includes a movable sheet guide member normally positioned to engage one side of the sheet adjacent the inlet edge of the die cavity to guide the sheet while the lead edge of the sheet moves progressively in a curl along the semi-cylindrical cavity and the guide member is automatically moved to a position away from the die cavity as the lead edge of the sheet exits from the semi-cylindrical die cavity to allow the lead edge of the sheet to continue to curl through at least a major portion of the cylinder.

Abstract: An improved device for forming finned heat transfer tubes using a fin structure winding device for winding a fin structure onto a conduit, a coil winder device for winding the finished finned heat transfer tubing into a coil, and at least two substantially parallel and coextensive tubing support means operable to support rotatably a piece of the finned tubing during the winding of the fin structure onto the conduit, and simultaneously to deliver a finished piece of finned heat transfer tubing to the coil winder.

Abstract: An apparatus for bending sheet metal wherein a plurality of forming rolls are utilized. The rolls are situated at succeeding stations, and a first bending station includes a roll having forming protrusions in spaced apart relationship on the roll surface. The roll also defines drive elements which are engageable by the sheet so that movement of the sheet against a roll drive element operates to drive the roll and to thus move a forming protrusion into contact with the sheet for bending the sheet. Shift means are associated with this roll for locating the drive elements and protrusions in different positions to thereby control the particular drive element engaged by the sheet whereby the particular forming protrusion which performs the bending function can be pre-selected.

Abstract: A method and apparatus for successively bending and straightening a bolt shank and the like for insertion into a bolt hole is characterized by a readily transportable compact device having inner and outer spaced cooperating rollers engageable with diametrically opposed surfaces of the shank so that when the cooperating rollers are simultaneously rotated along a predetermined bending path the shank will be bent through a corresponding curvature and in a direction aligned with a bolt hole into which the shank is to be inserted. A straightener roll is disposed in the path of the shank as it becomes aligned with the bolt hole to straighten the shank prior to advancement into the hole. In the method of successively bending and straightening a bolt shank in accordance with the present invention, the shank is positioned at a substantial angle of 90.degree.

Abstract: Three-ply web material is rolled approximately 360.degree. into the form of a cylinder within a preform cavity. A feed roller at the opening rotates continuously and a spring loaded pressure plate has an edge at the opening which forces the web material against the feed roller. After the trailing edge of the segment of web material has passed the edge of the pressure plate, contact between feed roller and web material is lost and the circumferential position of the seam of the preform is thus precisely located. There is a slight overlap between the ends of the material at the same. The preform is longitudinally transferred into a non-conducting cylindrical forming cavity where heat and pressure are applied to fuse the overlap and form the seam. Heat is applied by induction heating through the walls of the forming cavity to the aluminum ply at only the overlap area. Pressure is applied by an expandable balloon mandrel inside the preform.

Abstract: A method for producing a cutting face from a hard cutting material for engineer's tools comprising, essentially, presenting the metal stock to a feed slot within a forming core, heating the same to its deformation temperature and then forcing now deformed stock through said forming core into the desired shape. A helical cutting face produced by such method having a length greater than one-third its total lead; a helix angle in the range of 10.degree.-45.degree.; being of a length of one and one-half inches upward depending upon the particular tool requirement; and being of any desired cross-section.

Abstract: A pair of cooperating die members are disposed in a housing and arranged to slidably move along respective intersecting axes so that a forming portion of one of the die members is caused to progressively approach the nest portion of the other die member along an incline terminating at the nose portion of the housing, the nest portion of the one die member being arranged to support a preferably U-shaped deformable terminal, the arms of which are then caused to be contacted by the forming portion of the other die member and longitudinally progressively folded inwardly against one or more articles located within the terminal.