Patent
1974-07-05
1977-09-27
Coan, James F.
83 53, 83177, 93 584, 93 59R, B31B 120
Patent
active
040503623
ABSTRACT:
A process and apparatus for cutting, creasing and/or embossing sheets of cardboard, paper of similar material is disclosed. The apparatus includes a tool plate or die having steps therein in the form of parting steps and ribs and/or grooves to form creases. A resilient elastic member is employed to press the cardboard web down against the various steps in the tool plate. The size and configuration of the steps and the tool plate causes severing or cutting of the cardboard or creasing or embossing. Apparatus for use with rotational as well as planar or reciprocating blanking machines and a variety of different tool plate constructions are disclosed. The process includes resilient urging of the sheet against the die piece with the elastic member causing deformation of the sheet to conform to the tool plate.
REFERENCES:
patent: 124669 (1872-03-01), Delkescamp
patent: 2055077 (1936-09-01), Guerin
patent: 2351475 (1944-06-01), Berger
patent: 2810329 (1957-10-01), Schmidt et al.
patent: 3142233 (1964-07-01), Downie
patent: 3355969 (1967-12-01), Sarka
patent: 3485146 (1969-12-01), Sarka
patent: 3618438 (1971-11-01), Simson
patent: 3678577 (1972-07-01), Weglin et al.
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