Cutting of glass

Details Cutting of glass Cutting of glass

1975-04-22

1977-09-20

Yost, Frank T.

Severing by tearing or breaking

Methods

With preliminary weakening

225 3, 225 965, 225103, C03B 3302

Patent

active

040491676

ABSTRACT:
A process for automatically removing edge portions from a glass sheet comprises scoring a line of cut on a first surface of the sheet between the edge portion and the remainder of the sheet, hammering the second surface of the sheet along a path opposite the score line to initiate breakage and applying a bending force transverse to this line to the sheet at a predetermined distance from one of its ends to initiate breakage. The process is applicable to long ribbons of glass or to glass volumes having a given length and edge portions of inferior quality may be removed simultaneously from both sides of the sheet.

REFERENCES:
patent: 3116862 (1964-01-01), De Gorter
patent: 3169683 (1965-02-01), Pierce
patent: 3275207 (1966-09-01), Preudhomme
patent: 3532260 (1970-10-01), Augustin et al.
patent: 3567086 (1971-03-01), Wark et al.
patent: 3592370 (1971-07-01), Boardman
patent: 3779437 (1973-12-01), Yamamoto et al.
patent: 3795502 (1974-03-01), De Torre

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