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
B23D17/00—Shearing machines or shearing devices cutting by blades pivoted on a single axis
B23D17/02—Shearing machines or shearing devices cutting by blades pivoted on a single axis characterised by drives or gearings therefor
B23D17/04—Shearing machines or shearing devices cutting by blades pivoted on a single axis characterised by drives or gearings therefor actuated by a rotary shaft