Abstract: A welding head is provided. The welding head includes a bracket and a plurality of blocks coupled to the bracket. Each of the plurality of blocks has a contact tip. The contact tips are adapted to receive an electrode. Further, at least one of the plurality of blocks is capable of variable positioning relative to the bracket.

Abstract: Arc welding simulations that provide simulation of virtual destructive and non-destructive testing and inspection of virtual weldments for training purposes. The virtual testing simulations may be performed on virtual weldments created using a virtual reality welding simulator system (e.g., a virtual reality arc welding (VRAW) system). The virtual inspection simulations may be performed on “pre-canned” (i.e. pre-defined) virtual weldments or using virtual weldments created using a virtual reality welding simulator system. In general, virtual testing may be performed using a virtual reality welding simulator system (e.g., a virtual reality arc welding (VRAW) system), and virtual inspection may be performed using a standalone virtual weldment inspection (VWI) system or using a virtual reality welding simulator system (e.g., a virtual reality arc welding (VRAW) system).

Abstract: A method for producing welded round and profile chains of chain links that are connected to each other. The chain links for round and profile chains produced by this method include two chain link partial pieces that are connected to each other by friction welding.

Abstract: An aluminum alloy chain is formed from welded loops of aluminum rod that constitute the individual links of the chain. During welding, a weld bead is produced by fusing opposed ends of bent aluminum alloy rod stock and pressing the ends together while fused to create a weld bead that extends beyond the perimeter of the rod stock, at least in a direction towards the inside of the link. The aluminum alloy chain can be anodized entirely or at selected intervals to provide a colorful chain or to provide a measurement of the length of the chain. The chain is particularly adapted for use with anchors used in connection with nautical vessels.

Abstract: 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 for severance of the wire into discrete lengths, a horizontal link former that can move transversely relative to the direction the wire is being fed, and a vertical pincer the grips of which are designed to loop the longitudinal member around the entire cross-sectional periphery of the link former in such a way that the ends of a length of wire, formed into a link exceed the peripheral length of the link thus manipulated. The pincer moves through a path parallel to the link former and into a position where soldering means are located that fuse together the end stretched portions of excess length of the link into a bead, thereby embellishing the finished link.

Abstract: An apparatus for rendering automatic the production of ornamental chains of the kind known as "partridge's eye", wherein two link elements shaped as a turn are linked to form a link of the chain so that the free ends of one are roughly at the center of the other. The link is compressed transversally and axially to cross the end portions of the two link elements, so that the free ends of one element come into contact with the internal contour of the other. The link formed in this way is twisted, at its ends, welded in correspondence with the overlap points of the two link elements, and then linked to a link element suitable to form the subsequent links.

Abstract: A machine for constructing a chain of metallic shaped links from a continuous wire including:means for shaping the wire in the form of a cylindrical wire spiral; means for gripping the first free turn of the spiral; means for cutting away the first spiral turn and associated with shaping means to urge the ends of the first turn to approach to one another, to form a chain link; shaping means to impart the desired configuration to the chain link; welding means to weld the ends of the chain link; and control means to move into the operative or inoperative positions and to make operative or inoperative in a predetermined time sequence and at desired times the various means composing the machine.

Abstract: A traversing device in a plant for manufacturing chains. A carriage for carrying the chain end under production is movable along a guide on at least one side of a rectilinear production line comprising different work stations. The guide is mounted on at least one traverse beam movable transversely relative to the rectilinear production line, so that the chain end can be moved aside from the rectilinear production line to at least one additional work station, e.g., for re-orientation of the last link element.

Abstract: A chain making plant for the manufacture of two chains at a time by means of a series of operating stations arranged along a substantially straight course. Two conveyor units are provided, each of which successively presents a depending portion of one chain to the operating stations. Each of the conveyor units comprises a carriage running on a track extending along the course and a transverse chain conveyor supported by said carriage. A stationary supporting structure is provided outside of the middle portion of each of the tracks, said structure including a chain wheel arranged at such height and such a transverse distance with respect to the discharge end of the transverse chain conveyor as to allow a sagging portion of the chain supported at one end by the discharge end of the transverse chain conveyor and at the other end by said chain wheel to turn freely about said chain wheel.

Abstract: A chain making plant for the manufacture of two chains at a time by means of a series of operating stations arranged along a substantially straight course. Two conveyor units are provided, each of which successively presents a depending portion of one chain to the operating stations. Each of the conveyor units comprises a carriage running on a track extending along the course and a transverse chain conveyor supported by said carriage, said transverse chain conveyor being arranged to feed the chain outwards step by step and being capable of being shifted transversely as a unit with respect to the carriage.

Abstract: Method of and apparatus for electrically butt-welding high-strength chains. Previously bent and interengaged chain links are passed through a chain welding machine, each chain link in succession being alternately rotated about its axis and erected to a vertical position for engagement by upsetting members and welding electrodes.