FR875173A - Procédé pour l'assemblage de tubes par formation d'une culotte quand l'intervalle entre les tubes est grand par rapport à leur diamètre
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Procédé pour l'assemblage de tubes par formation d'une culotte quand l'intervalle entre les tubes est grand par rapport à leur diamètre
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Compagnie des Surchauffeurs SA
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Compagnie des Surchauffeurs SA
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Publication of FR875173ApublicationCriticalpatent/FR875173A/fr
B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
B21C37/06—Manufacture of metal sheets, bars, wire, tubes 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
B21C37/28—Making tube fittings for connecting pipes, e.g. U-pieces
B21C37/283—Making U-pieces
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Engineering & Computer Science
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Mechanical Engineering
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FR875173D1939-02-081941-09-09Procédé pour l'assemblage de tubes par formation d'une culotte quand l'intervalle entre les tubes est grand par rapport à leur diamètre
ExpiredFR875173A
(fr)
Perfectionnements apportés aux moyens pour permettre de modifier les caractéristiques aérodynamiques d'une surface, notamment pour les engins de navigation aérienne