C - Chemistry – Metallurgy – 03 – B
Patent
C - Chemistry, Metallurgy
03
B
C03B 33/02 (2006.01) C03B 33/033 (2006.01)
Patent
CA 2053316
A method for producing a glass knife, in which a flat glass plate (51) is divided by breaking along a dividing line (23) scratched on said plate. The plate is placed on two tower supporting pins (9. 10), positioned by the use of means (7. 8) cooperating with the side edge surfaces of the glass plate. and is fixed by means of two upper supporting pins (17. 18) which are made to engage the upper face of said plate. Each pair of supporting pins has a line of symmetry perpendicular to the line of symmetry of the other pair, one line of symmetry coinciding with the dividing plane. Before the glass plate is broken by moving the supporting pins towards one another, the positioning means (7, 8) are, at least partially, disengaged from the glass plate, such that essentially only the forces deriving from the supporting pins act upon the glass plate during the breaking thereof.
Dans le procédé décrit, une plaque de verre plat (51) est divisée par rupture le long d'une ligne séparatrice (23) traçée sur ladite plaque. Cette dernière est placée sur deux axes de support inférieurs (9, 10), positionnés par des moyens (7, 8) coopérant avec les surfaces marginales latérales de la plaque de verre, et est fixée au moyen de deux axes de support supérieurs (17, 18) qui viennent en contact avec la face supérieure de ladite plaque. Chaque paire d'axes de support comporte une ligne de symétrie perpendiculaire à la ligne de symétrie de l'autre paire, une ligne de symétrie coïncidant avec le plan de division. Avant rupture de la plaque de verre par rapprochement des axes de support, les moyens de positionnement (7, 8) sont, au moins partiellement, dégagés de la plaque de verre, de sorte qu'essentiellement seules les forces provenant des axes de support agissent sur la plaque de verre pendant sa rupture.
Glass Ultra Micro Trading Company
Sim & Mcburney
LandOfFree
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