B - Operations – Transporting – 21 – B
Patent
B - Operations, Transporting
21
B
80/22
B21B 1/08 (2006.01) B21D 47/01 (2006.01) E04C 3/06 (2006.01) E04C 3/04 (2006.01)
Patent
CA 1150986
METHOD FOR PRODUCING I-BEAM HAVING CENTRALLY CORRUGATED WEB AND ROLLS FOR PRODUCING SUCH I-BEAM Abstract of the Disclosure: An I-beam is made lighter in weight by corrugating the central portion of its web. Dimension of the corrugating is determined by predetermined experimental equations. The corrugating work is performed by a pair of rolls.
358273
Asai Yasuhiro
Hamada Masami
Hayashi Chihiro
Kikuchi Takeshi
Ohtake Fumio
George H. Riches And Associates
Sumitomo Metal Industries Ltd.
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