Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB5537/37A
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Individual
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Individual
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Publication of GB472744ApublicationCriticalpatent/GB472744A/en
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
B21D11/00—Bending not restricted to forms of material mentioned in only one of groups B21D5/00, B21D7/00, B21D9/00; Bending not provided for in groups B21D5/00 - B21D9/00; Twisting
B21D11/14—Twisting
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Engineering & Computer Science
(AREA)
Mechanical Engineering
(AREA)
Manufacturing Of Tubular Articles Or Embedded Moulded Articles
(AREA)
Abstract
472,744. Twisting rods. KOHLER, F. Feb. 24, 1937, No. 5537. Convention date, Feb. 27, 1936. [Classes 83 (ii) and 83 (iv)] Bars of circular cross-section for reinforcing concrete are simultaneously twisted and stretched to increase the tensile and compressive strength of the bars. The bars may be held in chucks which are rotatable and axially movable.
GB5537/37A1936-02-271937-02-24Method of and apparatus for producing bars and the like twisted in the cold state
ExpiredGB472744A
(en)
Procedure for manufacturing matrices to stretch in cold steels of diameter over 50 millimeters (Machine-translation by Google Translate, not legally binding)
Procedure and machine for the mechanical retortion of steel profiles in cold form, in particular rods for concrete armors of less than 5 millimeters of diameter (Machine-translation by Google Translate, not legally binding)