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
B23D45/00—Sawing machines or sawing devices with circular saw blades or with friction saw discs
B23D45/18—Machines with circular saw blades for sawing stock while the latter is travelling otherwise than in the direction of the cut
B23D45/24—Flying sawing machines with lever-supported saw carrier which oscillates in an arc
Procede d'avance automatique ou semi-automatique d'un chariot pousseur d'une coupeuse de tubes a un ou deux couteaux et dispositif pour la mise en óoeuvre de ce procede.