B21LMAKING METAL CHAINS making chains or chain links by casting B22D25/02; chains in general F16GIn this subclass non-limiting references (in the sense of paragraph 39 of the Guide to the IPC) may still be displayed in the scheme. B21L1/00 B21L1/00Making chains or chain links by bending workpieces of rod, wire, or strip to form links of oval or other simple shape B21L3/00, B21L7/00 take precedence B21L1/02by bending the ends of the workpieces to abut B21L1/04by bending and interconnecting the ends of the workpieces with or without separate jointing members B21L3/00Making chains or chain links by bending the chain links or link parts and subsequently welding or soldering the abutting ends B21L7/00 takes precedence B21L3/02Machines or devices for welding chain links B21L3/04by making use of forge or pressure welding B21L5/00Making chains or chain links by working the starting material in such a way that integral, i.e. jointless, chains links are formed B21L5/02in such a way that interconnected links are formed B21L7/00Making chains or chain links by cutting single loops or loop-parts from coils, assembling the cut parts and subsequently subjecting same to twisting with or without welding B21L9/00Making chains or chain links, the links being composed of two or more different parts, e.g. drive chains B21L1/04, B21L7/00, B21L11/14, B21L13/00 take precedence B21L9/02of roller-chain or other plate-link type B21L9/04Punching or bending the different parts of the chain links B21L9/06Sorting, feeding, assembling, riveting, or finishing parts of chains B21L9/065Assembling or disassembling B21L9/08Combining the chain links with auxiliary parts, e.g. welding-on wear-resistant parts B21L11/00Making chains or chain links of special shape B21L11/005Making ornamental chains B21L11/02 - B21L11/14 take precedence; ornamental chains A44C B21L11/02each link being formed of a single member of which both ends are bent or shaped to engage the middle portions of the next link B21L11/04the ends being pierced or punched to form eyes B21L11/06the workpiece being of thin strip metal B21L11/08the ends being interengaged with other parts of the same link B21L11/10the chain links having opposed correspondingly shaped cylindrical and hook-like parts of which one parts forms a hinge-like support for the adjacent link B21L11/02 takes precedence B21L11/12Forming bead chains B21L11/14Making chain links with inserted or integrally-formed studs B21L13/00Making terminal or intermediate chain links of special shapeMaking couplings for chains, e.g. swivels, shackles B21L15/00Finishing or dressing chains or chain links, e.g. removing burr material, calibrating B21L9/06 takes precedence B21L15/005Pre-stretching chains B21L15/02Twisting already closed links B21L19/00Appurtenances for chain-making not restricted to any particular process B21L21/00Tools or implements for repairing chains using metal-working operations, e.g. for detaching deformed chain links B21L99/00Subject matter not provided for in other groups of this subclass