Method for making a head of piolet

Details Method for making a head of piolet Method for making a head of piolet

1979-12-11

1982-08-31

Parker, Roscoe V.

Metal tools and implements, making

Blank or process

Hoes, mattocks and picks

125 43, 301648, D 8 11, 7159, 172380, B25D 700

Patent

active

043466281

ABSTRACT:
A method is provided which produces a head of piolet, all in one piece, by punching out a metallic blank (i.e. a long cross-shaped blank whose outline is symmetrical with regard to its longitudinal axis and comprises four parts: a peen part, a pike part, and two lateral fastening flaps) from a plate of metal, and then by the folding of that metallic blank symmetrically with regard to its medial plane, along its longitudinal axis or on both sides thereof, at least along that portion of length which corresponds to the pike. The blank is eventually shaped approximately along an arc of circle which is located along the medial plane of the blank before mounting upon the handle of the piolet.

REFERENCES:
patent: 159332 (1875-02-01), Johnson
patent: D194923 (1963-04-01), Grover
patent: 323130 (1885-07-01), Ells
patent: 1129052 (1915-02-01), Senn
patent: 3735434 (1973-05-01), Penberthy

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