A chain tool with a main body having a first body portion and a second body portion. A driving mechanism is supported by the first body portion and movable toward and away from the second body portion. The driving mechanism includes a first driving member adapted to retain one of a pair of plates of a chain and a second driving member adapted to drive a pin through the pair of plates. A stopper adapted to stop the pin selectively connected with the second body portion between a first and a second connection way. The second body portion has a slot for connecting the stopper. In the first connection way, the stopper includes a first end inserted in the slot. In the second connection way the stopper includes a second end inserted in the slot.

A method is provided for producing chain link plates for a plate link chain with alternating inner chain links and outer chain links, where the contour of the chain link plates has several punch sections and two face side and rear side contact sections which, after punching out the punch sections from the sheet metal strip provided, are first connected to complementary contact sections of adjoining chain link plates and separated in a subsequent separation cut. Further provided are bush or roller chains with outer chain link plates thus produced and a corresponding chain drive for an internal combustion engine with such a bush or roller chain. The method comprises the steps of: providing a sheet metal strip, punching out the punch sections of the chain link plates from the sheet metal strip, where a further rear side contact section, in addition to the face side contact sections, is respectively connected at the head portions of the chain link plates to a complementary contact section of adjoining chain link plates, and separating the face side contact sections and the rear side contact sections of the head portions of the chain link plates by way of a substantially waste-free separation cut.

A method is provided for producing chain link plates for a plate link chain with alternating inner chain links and outer chain links, where the contour of the chain link plates has several punch sections and two face side and rear side contact sections which, after punching out the punch sections from the sheet metal strip provided, are first connected to complementary contact sections of adjoining chain link plates and separated in a subsequent separation cut. Further provided are bush or roller chains with outer chain link plates thus produced and a corresponding chain drive for an internal combustion engine with such a bush or roller chain. The method comprises the steps of: providing a sheet metal strip, punching out the punch sections of the chain link plates from the sheet metal strip, where a further rear side contact section, in addition to the face side contact sections, is respectively connected at the head portions of the chain link plates to a complementary contact section of adjoining chain link plates, and separating the face side contact sections and the rear side contact sections of the head portions of the chain link plates by way of a substantially waste-free separation cut.

A description is given of a method for the production of gourmette jewellery articles comprising the steps consisting of: forming by cutting a series of links (10) starting from a metal plate; creating a reinforcing edge around said links; pressing in a mould said reinforced links to confer thereto an undulated shape; making a cut (41) which develops from the outer perimeter to the inner perimeter on some of said reinforced links (30), obtaining in this way a series of reinforced links provided with cut (40); attaching in sequence two reinforced links provided with cut (40) to an intact reinforced link (30), or two intact links to a link provided with cut, obtaining a chain wherein a reinforced link (30) alternates with a reinforced link provided with cut (40); and closing the cuts (41) previously formed in the reinforced links provided with cut (40).

A description is given of a method for the production of gourmette jewellery articles comprising the steps consisting of: forming by cutting a series of links (10) starting from a metal plate; creating a reinforcing edge around said links; pressing in a mould said reinforced links to confer thereto an undulated shape; making a cut (41) which develops from the outer perimeter to the inner perimeter on some of said reinforced links (30), obtaining in this way a series of reinforced links provided with cut (40); attaching in sequence two reinforced links provided with cut (40) to an intact reinforced link (30), or two intact links to a link provided with cut, obtaining a chain wherein a reinforced link (30) alternates with a reinforced link provided with cut (40); and closing the cuts (41) previously formed in the reinforced links provided with cut (40).

A method is provided for producing chain link plates for a plate link chain with alternating inner chain links and outer chain links, where the contour of the chain link plates has several punch sections and two face side and rear side contact sections which, after punching out the punch sections from the sheet metal strip provided, are first connected to complementary contact sections of adjoining chain link plates and separated in a subsequent separation cut. Further provided are bush or roller chains with outer chain link plates thus produced and a corresponding chain drive for an internal combustion engine with such a bush or roller chain. The method comprises the steps of: providing a sheet metal strip, punching out the punch sections of the chain link plates from the sheet metal strip, where a further rear side contact section, in addition to the face side contact sections, is respectively connected at the head portions of the chain link plates to a complementary contact section of adjoining chain link plates, and separating the face side contact sections and the rear side contact sections of the head portions of the chain link plates by way of a substantially waste-free separation cut.

A method is provided for producing chain link plates for a plate link chain with alternating inner chain links and outer chain links, where the contour of the chain link plates has several punch sections and two face side and rear side contact sections which, after punching out the punch sections from the sheet metal strip provided, are first connected to complementary contact sections of adjoining chain link plates and separated in a subsequent separation cut. Further provided are bush or roller chains with outer chain link plates thus produced and a corresponding chain drive for an internal combustion engine with such a bush or roller chain. The method comprises the steps of: providing a sheet metal strip, punching out the punch sections of the chain link plates from the sheet metal strip, where a further rear side contact section, in addition to the face side contact sections, is respectively connected at the head portions of the chain link plates to a complementary contact section of adjoining chain link plates, and separating the face side contact sections and the rear side contact sections of the head portions of the chain link plates by way of a substantially waste-free separation cut.

Roller chain outer plate links including a cable support portion are disclosed. Example roller chain outer plate links include a link portion, a cable support portion oriented projecting from an outer face of the link portion, and a joint at one of the lead/tail ends of the link portion. The link portion, joint, and cable support portions each comprise portions integral with remaining portions of the outer plate link. Cable support portions of the roller chain outer plate links support a cable extending between components of an apparatus.

Roller chain outer plate links including a cable support portion are disclosed. Example roller chain outer plate links include a link portion, a cable support portion oriented projecting from an outer face of the link portion, and a joint at one of the lead/tail ends of the link portion. The link portion, joint, and cable support portions each comprise portions integral with remaining portions of the outer plate link. Cable support portions of the roller chain outer plate links support a cable extending between components of an apparatus.

A description is given of a method for the production of gourmette jewellery articles comprising the steps consisting of: forming by cutting a series of links (10) starting from a metal plate; creating a reinforcing edge around said links; pressing in a mould said reinforced links to confer thereto an undulated shape; making a cut (41) which develops from the outer perimeter to the inner perimeter on some of said reinforced links (30), obtaining in this way a series of reinforced links provided with cut (40); attaching in sequence two reinforced links provided with cut (40) to an intact reinforced link (30), or two intact links to a link provided with cut, obtaining a chain wherein a reinforced link (30) alternates with a reinforced link provided with cut (40); and closing the cuts (41) previously formed in the reinforced links provided with cut (40).