Abstract: One embodiment of an invention providing am inprovement upon a U-bolt bender is disclosed. The bender has a clamp for clamping a workpiece thereto and a slide for advancing the workpiece along a path. The improvement comprises a die and rollers for urging an intermediate portion of the workpiece against a forward surface of the die and for urging end portion of the workpiece respectively against sides of the die adjacent to the forward surface. The bender carries the rollers and the slide carries the die and brings the workpiece into engagement with the rollers by advancing the workpiece along the path. The sides of the die converge together and extend away from the forward surface such that as the slide brings the workpiece into engagement with the roller, the rollers urge the intermediate portion of the workpiece against the forward surface and urge the end portions of the workpiece respectively against the sides of the die, the slide meanwhile causing the clamp to clamp the workpiece to the die.

Abstract: Accessory is disclosed, in its preferred form, for use in conjunction with an apparatus for repairing and straightening vehicles having a support surface for supporting vehicles thereon. The support surface includes an array of regularly shaped apertures which extend vertically therethrough. A unibody clamp is disclosed including adjustable jaws for removably gripping the pinch weld of a unibody frame. A first connector member is further provided on the clamp for allowing the use of a down pull member including a chain directed to the clamp by a rotatably mounted pulley. The down pull member is removably attached to the support surface by an attachment member which extends into a selected support surface aperture and allows self-alignment thereof in the support surface.

Abstract: A machine having blanking, barb forming and bending stations is provided for making a coil of metal tape from a substantially planar linear strip of metal stock wherein such strip is fed in sequence to the stations in a single pass through the machine to respectively edge notch the strip into barbs, upset the barbs into inclined relation to the plane of the strip and then edge bend the strip in the plane of the strip to form it into identically angularly displaced adjoining linear segments of equal length to make a generally annular coil of barbed metal tape.The method of this invention features forming spaced openings along a longitudinal axis of a substantially planar linear strip of metal stock, positioning the strip by means of its openings and edge bending the strip in the plane of the strip adjacent its openings to form the strip into a coil having identical angularly displaced adjoining linear segments.

Abstract: A method and apparatus for bending beams by which a beam is subjected to pure moment bending in a critically oriented plane to avoid twist and to maintain single plane bending in a beam of arbitrary cross section. As disclosed, a pair of bending heads laterally engage a beam at longitudinally spaced points. Force actuator means connected directly between the heads is energized to rotate one of the heads relative to the other to produce a bending moment in a work area in the beam between the heads. The actuator means is arranged to produce a force couple on the heads which avoids transverse loading of the beam and resultant twist and which is adapted to selectively orient the plane of the applied couple relative to the desired bending plane to maintain single plane bending in beams of nonsymmetric cross section.

Abstract: A machine having blanking, barb forming and bending stations is provided for making a coil of metal tape from a substantially planar linear strip of metal stock wherein such strip is fed in sequence to the stations in a single pass through the machine to respectively edge notch the strip into barbs, upset the barbs into inclined relation to the plane of the strip and then edge bend the strip in the plane of the strip to form it into identically angularly displaced adjoining linear segments of equal length to make a generally annular coil of barbed metal tape.The method of this invention features forming spaced openings along a longitudinal axis of a substantially planar linear strip of metal stock, positioning the strip by means of its openings and edge bending the strip in the plane of the strip adjacent its openings to form the strip into a coil having identical angularly displaced adjoining linear segments.