Class 59/27 - Bending

Subclass of Class 59 - Chain, staple, and horseshoe making
Definition: Machines and devices for bending links into complete form
No. of patents: 19
Last issue date: 11/21/2006

Number	Title	Issue Date
7137239	Prickle chain link A cast prickle chain link element, and a prickle chain made by interconnecting a plurality of these links. Each link element includes a body, the body having at least one hole, and at least one hook formed into it, and at least one ground engaging finger projecting ...	11/21/2006
5592809	Link forming and joining apparatus Apparatus is disclosed for forming a single wire link which can be joined to a preformed jewelry article. The apparatus includes an electric motor-driven cam assembly that provides for sequential operation of the wire feeding and link forming devices. A s...	01/14/1997
5412933	Automatic link forming apparatus A machine is shown for feeding a length of wire to a forming station, cutting and forming the length into a U-shaped element around an arbor, moving the U-shaped element to a presentation position in a channel of a face plate with the free ends of the ele...	05/09/1995
4999989	Machine for the production of an ornamental chain of the type formed by "figure-of eight" links A machine for the production of an ornamental chain of the type formed by so-called "figure-of-eight" links, comprising a slide (23) for transferring a section of wire of prefixed length, folded in a U shape, from a unit (51) for supplying said section of...	03/19/1991
4910954	Apparatus for the formation of ornamental chains The disclosure relates to the art field of machines for crafting jewelry, namely, chains both in precious metal and in costume jewelry metals. The apparatus of the present invention includes an indexing mechanism for feeding at least one wire, a cutter fo...	03/27/1990
4893463	Prickle chain device and method of production thereof A prickle chain wherein each link has two side portions which are joined at one end by a curved bridge portion, the side portions terminating in respective outwardly projecting ends which cross each other and extend in opposite directions, the projections...	01/16/1990
4694644	Method and apparatus for producing oval chain links from round wire A straight wire length is bent against a mandrel into an obtuse V-shape and then into a C-shape at a first station, and against another mandrel into an oval shape at a second station. When making the V-shape bend the leading edge of the wire length is the...	09/22/1987
4680926	Process and apparatus for the production of oval chain links from round wire The chain links are bent in a single bending station, using a single mandrel. Pieces of wire of a given uniform length are bent into a V-shape between a holder and a suitably shaped recess in the mandrel. A wire feed sleeve and a wire receiving sleeve are...	07/21/1987
4679392	Process for producing a garland chain A method for forming a garland chain is disclosed, wherein an original chain formed of either long links or of long and short links is worked to produce a garland chain. The garland chain is formed by sliding one link on another so that two attached links...	07/14/1987
4642982	Chain belt and method of manufacture A chain link belt includes a plurality of tube pairs, each pair comprising two tubes joined along their sides in a substantially parallel relation. A plurality of wires of predetermined lengths are used to join the tubes to form the belt links. The wires ...	02/17/1987
4380145	Wire link-forming and linking device An apparatus is disclosed for the feeding of oval-shaped open end wire links seriatim, from an open-link feeding bar magazine, to a groove in a movable link-forming slide tool. Subsequent upward movement of the link-forming slide tool carries the open ova...	04/19/1983
4354344	Method of making shackle A method of making a shackle is disclosed. Both ends of a round bar are upset and are then formed into circular heads which are bored through. The round bar is later bent into a U at its middle part to form the shackle body, and the indicating letters are...	10/19/1982
4338779	Apparatus for the production of ornamental link chains (venetian chains) ready for soldering An apparatus for producing ornamental link chains (Venetian chains). In accordance with the invention the cutting to length is followed by a conveying step transversely to a feed direction, both conveying steps are carried out transversely to a direction ...	07/13/1982
4300380	Apparatus and a method for use in making a railway rail-fastening clip Part of a red-hot metal rod between the ends of the rod is supported and first and second bending members are displaced, preferably simultaneously, to bend parts of the rod on both sides of said part around respective forming surfaces to produce two U-ben...	11/17/1981
4209978	Method of bending a link blank into a chain link and a bending machine for carrying out the method A method and a device for bending a rod-shaped link blank into a substantially closed chain link, particularly while at the same time hooking the link blank into a chain end. According to the invention, the blank is brought into a first receiving position...	07/01/1980
4163363	Chain link bending machine Chain links are formed of wire pins by bending each wire pin about work faces of a mandrel with bending tools which engage the pin at the two end zones thereof. The locations of engagement describe, at least during the terminal phase of the bending operat...	08/07/1979
4123899	Method for bending chain links and chain link bending machine Chain links are formed of wire pins by bending each wire pin about work faces of a mandrel with bending tools which engage the pin at the two end zones thereof. The locations of engagement describe, at least during the terminal phase of the bending operat...	11/07/1978
3977180	Automatic chain manufacturing system An automated system for producing chain wherein individual pins are fed one-at-a-time to a heating station. The pins are heated in stages at said station to a temperature suitable for bending of the pins. The pins are automatically moved from said station...	08/31/1976
3961474	Method and apparatus for the manufacture of chains with round links, having varying mechanical characteristics A method for producing a link chain in which some of the links have deformation characteristics differing from other links, and apparatus for producing the link chain in which stock material having the different deformation characteristics are sequentiall...	06/08/1976

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Class 59/27 - Bending