Method of and apparatus for severing edges of a glass sheet

Details Method of and apparatus for severing edges of a glass sheet Method of and apparatus for severing edges of a glass sheet

1979-12-10

1981-08-25

Yost, Frank T.

Severing by tearing or breaking

Methods

With preliminary weakening

225 3, 225 965, C03B 3302

Patent

active

042854512

ABSTRACT:
Bulb edges of a glass sheet severed from a glass ribbon, i.e., lehr ends are removed by imposing a pair of scores in the bulb edge with the score closest to the edge of the lehr end deeper than the other score. The surface of a resilient member lying in a plane subtending an oblique angle with the sheet is moved downward against the bulb edge to sequentially sever the bulb edge at the first and second scores.

REFERENCES:
patent: 3044216 (1962-07-01), Billinger
patent: 3216635 (1965-11-01), Lefevre
patent: 3259286 (1966-07-01), LeGras
patent: 3743148 (1973-07-01), Carlson
patent: 3779437 (1973-12-01), Yamamoto et al.
patent: 3998616 (1976-12-01), Farabaugh
patent: 4033490 (1977-07-01), Ulivi
patent: 4049167 (1977-09-01), Guissard
patent: 4136807 (1979-01-01), DeTorre
patent: 4196830 (1980-04-01), Oravitz, Jr. et al.

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