B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
B21C1/00—Manufacture of metal sheets, wire, rods, tubes or like semi-manufactured products by drawing
B21C1/02—Drawing metal wire or like flexible metallic material by drawing machines or apparatus in which the drawing action is effected by drums
B21C1/04—Drawing metal wire or like flexible metallic material by drawing machines or apparatus in which the drawing action is effected by drums with two or more dies operating in series
Procede et dispositif pour le prelevement automatique simultane de bobines, et pour l'emboitement consecutif concomitant de bobinots sur des broches d'une machine de filage ou de retordage
Procede et installation correspondante pour la recirculation des mandrins dans un laminoir travaillant dans le mode a mandrin retenu, pour la fabrication de tubes sans soudure
Dispositif d'entraînement des fuseaux ou broches dans les machines de filature, telles que métiers à filer, métiers à retordre, moulins à soie etc.