A chain link for a conveyor chain includes a planar elongate sheet metal conveying body having four outer corners and sides that extend between adjacent outer corners, the sides include long sides and short sides that extend between the long sides, the sides further include side face portions that extend substantially transversely to a conveying plane of the conveying body, and at each of the outer corners, the conveying body may include a corner face portion that extends transversely to the conveying plane and that connects angularly to a side face portion of a short side.

A chain link for a conveyor chain includes a planar elongate sheet metal conveying body having four outer corners and sides that extend between adjacent outer corners, the sides include long sides and short sides that extend between the long sides, the sides further include side face portions that extend substantially transversely to a conveying plane of the conveying body, and at each of the outer corners, the conveying body may include a corner face portion that extends transversely to the conveying plane and that connects angularly to a side face portion of a short side.

A chain link for a conveyor chain includes a planar elongate sheet metal conveying body having four outer corners and sides that extend between adjacent outer corners, the sides include long sides and short sides that extend between the long sides, the sides further include side face portions that extend substantially transversely to a conveying plane of the conveying body, and at each of the outer corners, the conveying body may include a corner face portion that extends transversely to the conveying plane and that connects angularly to a side face portion of a short side.

A chain link for a conveyor chain includes a planar elongate sheet metal conveying body having four outer corners and sides that extend between adjacent outer corners, the sides include long sides and short sides that extend between the long sides, the sides further include side face portions that extend substantially transversely to a conveying plane of the conveying body, and at each of the outer corners, the conveying body may include a corner face portion that extends transversely to the conveying plane and that connects angularly to a side face portion of a short side.

A method of making tennis bracelets includes coupling together collet elements (2) in a repetitive series, wherein an L-shaped lateral appendage (3) of a collet element is inserted into a through hole (6) of an immediately adjacent collet element and then bent against a face (7) of the collet element to which it belongs. The collet elements are inserted according to the repetitive series into an assembly template (10) implemented as a self-supporting unit provided with fasteners (16) for fastening the unit to first and second carriage supports (22, 36) of first and second machines (18, 19), which cause the assembly template to translate under a die block (26) of a press device (24) of the first machine. The lateral appendages (3) of the collet elements are bent in succession under a laser welding head (38) of the second machine, for welding the appendages (3) to their respective collet elements.

A method of making tennis bracelets includes coupling together collet elements (2) in a repetitive series, wherein an L-shaped lateral appendage (3) of a collet element is inserted into a through hole (6) of an immediately adjacent collet element and then bent against a face (7) of the collet element to which it belongs. The collet elements are inserted according to the repetitive series into an assembly template (10) implemented as a self-supporting unit provided with fasteners (16) for fastening the unit to first and second carriage supports (22, 36) of first and second machines (18, 19), which cause the assembly template to translate under a die block (26) of a press device (24) of the first machine. The lateral appendages (3) of the collet elements are bent in succession under a laser welding head (38) of the second machine, for welding the appendages (3) to their respective collet elements.

An intermediate chain for drawing assemblies of drawing machines provided with at least one track having a plurality of contiguous links configured to act on a product being worked in order to draw it, is interposed between the corresponding track and support means of the track and comprises a plurality of contiguous links. Each of said links comprises an idle roll equipped with a through axial hole, a join pin and a connection element provided with a plurality of through holes configured to house at least said join pin. The connection element comprises two lateral support portions positioned in correspondence to axially opposite longitudinal ends of said idle roll, and a central connection portion, interposed transversely between the two lateral support portions and joined to both in order to reciprocally connect them, keeping them at a fixed and constant reciprocal distance and in a fixed and constant reciprocal position.