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
B21C1/12—Regulating or controlling speed of drawing drums, e.g. to influence tension; Drives; Stop or relief mechanisms
Landscapes
Engineering & Computer Science
(AREA)
Mechanical Engineering
(AREA)
Formation Of Various Coating Films On Cathode Ray Tubes And Lamps
(AREA)
Dispositif électromécanique de commande de l'ouverture d'une serrure et serrure de portière de véhicule automobile comportant un tel dispositif