B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
B23D25/00—Machines or arrangements for shearing stock while the latter is travelling otherwise than in the direction of the cut
B23D25/02—Flying shearing machines
B23D25/08—Flying shearing machines having two coacting shearing blades mounted independently
Dispositif pour realiser au choix dans une bande de materiau en mouvement continu des echancrures ou des trous ou des trous d'aiguille servant a la purge de l'air