IT1225784B - Device and method for producing links for "birdseye" chains
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Device and method for producing links for "birdseye" chains
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Publication number
IT1225784B
IT1225784BIT8801229AIT122988AIT1225784BIT 1225784 BIT1225784 BIT 1225784BIT 8801229 AIT8801229 AIT 8801229AIT 122988 AIT122988 AIT 122988AIT 1225784 BIT1225784 BIT 1225784B
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Application filed by Eretria SrlfiledCriticalEretria Srl
Priority to IT8801229ApriorityCriticalpatent/IT1225784B/en
Publication of IT8801229A0publicationCriticalpatent/IT8801229A0/en
Application grantedgrantedCritical
Publication of IT1225784BpublicationCriticalpatent/IT1225784B/en
This invention is concerned with a device and method of producing links for "birdseye" chains, used in the production of necklaces, bracelets and other decorative articles. According to the invention, two elliptical rings, supported by pliers (4) and (5) on inclined surfaces, at the point where they are worked, are linked between the cavity of two small flexible frames adjacent to each other and which operate in succession, each on the surface where the corresponding ring for deflection lies; the two components (6 and 7) or (8 and 9) of each small frame are activated simultaneously to the same extent each by its own mechanical transmission system determining uniform and symmetric inflections of the links each supported by its own pliers (figs. 3 and 4).
IT8801229A1988-07-261988-07-26Device and method for producing links for "birdseye" chains
IT1225784B
(en)
Process for cross-linking of collagen by diphenylphosphorylazide, the cross-linked collagen obtained thereby, and biomaterials of collagen base thus cross-linked
PROCEDURE FOR ANCHORING ORNAMENTAL STONES IN A NON-VISIBLE WAY AND PARTICULARLY FOR APPLICATIONS IN JEWELRY, COSTUME JEWELERY AND SIMILAR OBJECTS AND PRODUCTS OBTAINED BY IMPLEMENTING THIS PROCEDURE