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Application grantedgrantedCritical
Publication of DE324428CpublicationCriticalpatent/DE324428C/de
B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
B21D53/00—Making other particular articles
B21D53/78—Making other particular articles propeller blades; turbine blades
Landscapes
Engineering & Computer Science
(AREA)
Mechanical Engineering
(AREA)
Processing And Handling Of Plastics And Other Materials For Molding In General
(AREA)
Press Drives And Press Lines
(AREA)
Injection Moulding Of Plastics Or The Like
(AREA)
Description
Hierzu 1 Blatt Zeichnungen.
Claims (1)
Patent-Anspruch:
Preßverfahren für Metallhohlkörper, insbesondere Luftschrauben, nach Patent
324069, dadurch gekennzeichnet, daß innerhalb des Füllmaterials Hohlräume vorgesehen sind, so daß es den Hohlkörper
nur teilweise ausfüllt.
DENDAT324428DPressverfahren fuer Metallhohlkoerper, insbesondere Luftschrauben
ExpiredDE324428C
(de)