Method of opening score lines in glass sheets

Details Method of opening score lines in glass sheets Method of opening score lines in glass sheets

1977-08-24

1979-01-30

Yost, Frank T.

Severing by tearing or breaking

Methods

With preliminary weakening

225 3, C03B 3302

Patent

active

041368070

ABSTRACT:
Score lines or fracture lines in a glass sheet are opened by advancing the glass sheet along an article movement path into a snapping station with the score lines to be opened extending between the leading and trailing edge of the sheet as it moves along the article movement path. A moving bending moment is applied to the glass sheet along a path transverse to the article movement path. In one embodiment, the bending moment is applied to the glass sheet by a pair of spaced rotatably mounted wheels urging the sheet in a first direction as a rotatably mounted wheel urges the sheet in a second opposite direction.

REFERENCES:
patent: 3275207 (1966-09-01), Preudhomme
patent: 3286893 (1966-11-01), Zellers, Jr.
patent: 3398868 (1968-08-01), Curtze et al.
patent: 3486673 (1969-12-01), Madge
patent: 3592370 (1971-07-01), Boardman
patent: 3626492 (1971-12-01), Hobbs
patent: 3657791 (1972-04-01), Hobbs
patent: 3779437 (1973-12-01), Yamamoto et al.
patent: 3790051 (1974-02-01), Moore

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