Method of and apparatus for manufacturing plowshares

Details Method of and apparatus for manufacturing plowshares Method of and apparatus for manufacturing plowshares

1980-02-11

1982-08-24

Spruill, R. L.

Metal working

Plow or cultivator iron making

72214, 76101R, B21H 706

Patent

active

043453589

ABSTRACT:
An improved method of and apparatus for manufacturing plowshares that enables the plowshare bending and shaping operations to be performed with precision in a succession of reciprocal movements while minimizing the need for preforming or treatment of the material from which the plowshare is made prior to placement in the plowshare machine, which method and apparatus is further characterized by a capability of working sheet material of different thicknesses, and which utilizes hydraulic power cylinders.

REFERENCES:
patent: 195627 (1877-09-01), Meikie
patent: 1045022 (1912-11-01), Hauberg
patent: 3792602 (1974-02-01), Fukuda
patent: 4004442 (1977-01-01), Strelechenko et al.

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