Method of scoring glass using a scoring wheel having an arcuate

Details Method of scoring glass using a scoring wheel having an arcuate Method of scoring glass using a scoring wheel having an arcuate

1975-09-19

1977-11-08

Schran, Donald R.

Severing by tearing or breaking

Methods

With preliminary weakening

225 965, 83 7, 83 12, C03B 3302, C03B 3310

Patent

active

040571840

ABSTRACT:
Pieces of glass are scored using a scoring wheel having a major radius (R.sub.1) and an arcuate scoring surface (R.sub.2) forced against the piece at a predetermined pressure. Thereafter, the score is opened by applying heat to the score and/or a bending moment about the score.

REFERENCES:
patent: 3865293 (1975-02-01), Ernsberger et al.
patent: 3865673 (1975-02-01), De Torre

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