Apparatus for shaping sheet material

Details Apparatus for shaping sheet material Apparatus for shaping sheet material

1977-03-21

1978-09-26

Mehr, Milton S.

Metal deforming

By tool-couple embodying nonplanar tool-face

With adjustable or replaceable section of tool-face

72478, B21D 3710

Patent

active

041160380

ABSTRACT:
Sheet material shaping apparatus is disclosed for manufacturing ship propeller blades and the like, characterized in that the sheet shaping apparatus includes top and bottom base elements between which a plurality of abutting members are arranged, each of the members having the configuration of a cylindrical sector, successive members having progressively differing heights to cause the top edges of the members to define a helicoidal shaping surface.

REFERENCES:
patent: 928353 (1909-07-01), Bissell
patent: 1019073 (1912-03-01), Nazel
patent: 2267774 (1941-12-01), Wall
patent: 2334520 (1943-11-01), Walters
patent: 2679172 (1954-05-01), Clevenger
patent: 2916074 (1959-12-01), Lorenz
patent: 3187549 (1965-06-01), Guy
patent: 3226969 (1966-01-01), De Jong
patent: 3566642 (1971-03-01), Whitacre
patent: 3640175 (1972-02-01), Barclay

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