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Henschel and Sohn GmbH
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Henschel and Sohn GmbH
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Application filed by Henschel and Sohn GmbHfiledCriticalHenschel and Sohn GmbH
Application grantedgrantedCritical
Publication of FR890137ApublicationCriticalpatent/FR890137A/en
B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
B21H3/00—Making helical bodies or bodies having parts of helical shape
B21H3/02—Making helical bodies or bodies having parts of helical shape external screw-threads ; Making dies for thread rolling
B21H3/04—Making by means of profiled-rolls or die rolls
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Engineering & Computer Science
(AREA)
Mechanical Engineering
(AREA)
FR890137D1942-10-081943-01-14
Machine for the simultaneous rolling of two threads on bolts, in particular on spacers for locomotives
ExpiredFR890137A
(en)