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B21J7/00—Hammers; Forging machines with hammers or die jaws acting by impact
B21J7/20—Drives for hammers; Transmission means therefor
B21J7/36—Drives for hammers; Transmission means therefor for drop hammers
B21J7/42—Drives for hammers; Transmission means therefor for drop hammers operated by rotary drive, e.g. electric motors
B21J7/44—Drives for hammers; Transmission means therefor for drop hammers operated by rotary drive, e.g. electric motors equipped with belts, ropes, cables, chains
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FR569798D1923-08-171923-08-17Dispositif pour rendre automatiques les moutons d'estampage
ExpiredFR569798A
(fr)