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)
Tension Adjustment In Filamentary Materials
(AREA)
Dispositif réalisant la transformation du courant continu à voltage constant en puissance mécanique à couple constant jusqu'à une vitesse donnée, avec réduction automatique au-delà, et la transformation inverse avec les mêmes caractéristiques mécaniques.