Apparatus and method for cutting circles from sheet material

Details Apparatus and method for cutting circles from sheet material Apparatus and method for cutting circles from sheet material

1976-11-24

1977-08-23

Yost, Frank T.

Cutting

Processes

Plural cutting steps

83 50, 83 55, 83405, 83620, 83691, B26D 900, B26F 144

Patent

active

040432343

ABSTRACT:
To avoid the waste of die-cutting a plurality of circular blanks of identical diameter from rectangular sheet material, the material is formed into non-rectangular sheets of parallelogram trapezoid, or equilateral triangle configuration, which have a predetermined length and width substantially equal to a multiple of the diameter of the circles. The circular dies of a gang-die cutter are juxtaposed in a series of laterally extending rows in parallelism, longitudinally of the die cutter, the rows being at an angle of 60.degree. to the longitudinal edges of the sheets. The sheets and the die pattern thus both are of parallelogram trapezoid, or equilateral triangle, outline.

REFERENCES:
patent: 605334 (1898-06-01), Painter
patent: 653955 (1900-07-01), Gordon
patent: 1439393 (1922-12-01), Assmann, Jr.
patent: 2489583 (1949-11-01), Messenger

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