AT187777B - Vorrichtung zur Herstellung schraubenförmig gerillter, aus Papier und/oder Blech gewickelter biegsamer Rohre oder Schläuche
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Vorrichtung zur Herstellung schraubenförmig gerillter, aus Papier und/oder Blech gewickelter biegsamer Rohre oder Schläuche
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Publication number
AT187777B
AT187777BAT187777DAAT187777BAT 187777 BAT187777 BAT 187777BAT 187777D AAT187777D AAT 187777DAAT 187777 BAT187777 BAT 187777B
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Application filed by Wilhelm Ing HeglerfiledCriticalWilhelm Ing Hegler
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Publication of AT187777BpublicationCriticalpatent/AT187777B/de
B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
B21C37/00—Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
B21C37/06—Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
B21C37/15—Making tubes of special shape; Making tube fittings
B21C37/20—Making helical or similar guides in or on tubes without removing material, e.g. by drawing same over mandrels, by pushing same through dies ; Making tubes with angled walls, ribbed tubes or tubes with decorated walls
B21C37/207—Making helical or similar guides in or on tubes without removing material, e.g. by drawing same over mandrels, by pushing same through dies ; Making tubes with angled walls, ribbed tubes or tubes with decorated walls with helical guides
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Engineering & Computer Science
(AREA)
Mechanical Engineering
(AREA)
AT187777D1952-01-171953-01-16Vorrichtung zur Herstellung schraubenförmig gerillter, aus Papier und/oder Blech gewickelter biegsamer Rohre oder Schläuche
AT187777B
(de)
Tuyaux flexibles et tuyaux souples, à ondulations hélicoïdales, fabriqués en continu par enroulement à partir de matières fournies sous forme de bande ou de feullard