Convex type bottom with a bearing rim for bottles for...

Details Convex type bottom with a bearing rim for bottles for... Convex type bottom with a bearing rim for bottles for...

B - Operations, Transporting

65

D

78/1, 190/78

B65D 1/40 (2006.01) B21K 21/06 (2006.01) B21K 21/14 (2006.01) F17C 1/00 (2006.01) F17C 13/08 (2006.01)

Patent

CA 1226535

Abstract A convex type bottom with a bearing rim for bottles for industrial gases, obtained by hot forging a steel billet, has the lower outer surface consisting of a central circular flat area, a first frustoconical annular area adjacent the central area, inclined upwards, a second frustoconical annular area adjacent the first frustoconical annular area, inclined downwards, and a subvertical frustoconical area radiused, on the one side, to the second frustoconical annular area and, on the other side, to the flat surface of the bearing rim. Provided on the inclined frustoconical annular areas are corrugations. Such a configuration of the bottom permits the defects to be eliminated due to creeping of the material during forging.

446276

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