Apparatus for heat cutting sheet material

Details Apparatus for heat cutting sheet material Apparatus for heat cutting sheet material

1978-05-22

1980-08-05

Bray, W. Donald

Cutting

With product handling means

Means to move, guide, or permit free fall or flight of product

83 16, 83171, 83698, 156575, 219243, B26D 710

Patent

active

042156076

ABSTRACT:
The application discloses an assembly comprising an elongated knife in association with a heating unit together with means to mount the assembly so as substantially to eliminate all warping or other distortion of the knife due to heat. Specifically, the knife is mounted directly against the sheath of an electric resistance type heating unit. The heating unit and knife are mounted from a supporting frame in such fashion that they may expand or "grow" axially, thus substantially to eliminate distortion of the heating unit and knife. Also associated with the supporting framework for the heating unit and knife is means slightly to tension the sheet to be cut on either side of the knife, while the cutting takes place, thus to prevent after-cutting contact of the sheet edges with the knife.

REFERENCES:
patent: 1802968 (1931-04-01), Everett et al.
patent: 2244550 (1941-06-01), Chandler
patent: 2484619 (1949-10-01), George
patent: 2623586 (1952-12-01), Volpi
patent: 3912575 (1975-10-01), Zelnick
patent: 3922958 (1975-12-01), Bate

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