Severing by tearing or breaking – Methods – With preliminary weakening
Patent
1982-09-15
1984-09-18
Yost, Frank T.
Severing by tearing or breaking
Methods
With preliminary weakening
225 935, 225 965, B26F 306, C03B 3302
Patent
active
044718950
ABSTRACT:
In a process for cutting laminated glass, the laminated glass is scored on both sides, and bent first to one and then to the other side, the two parts of the laminated glass being pulled apart while performing the second bending step. The thus-tensioned plastic sheeting is melted off simultaneously over the entire length of the parting line by a jet of heated air directed into the gap formed by the bending operation. The apparatus for conducting the process comprises two plate-like supports for the laminated glass to be cut, at least one of these supports being pivotable to and fro about an axis extending in the junction zone between the two supports. The supports (1, 2) are provided at their lower edges with conveying elements (5, 6) for the laminated glass (10) and with clamping devices (13, 14) for fixing the laminated glass (10) in place. Furthermore, a hot-air duct (15) is provided, having a slotted nozzle (30) oriented toward the junction zone (3) between the supports (1, 2).
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patent: 1738229 (1929-12-01), Campbell et al.
patent: 1771510 (1930-07-01), Penning
patent: 1959545 (1934-05-01), Paxton
patent: 1966353 (1934-07-01), McConnell, Jr.
patent: 1969394 (1934-08-01), Chase
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