Severing by tearing or breaking – Methods – With preliminary weakening
Patent
1975-01-27
1976-05-25
Simpson, Othell M.
Severing by tearing or breaking
Methods
With preliminary weakening
B26F 300
Patent
active
039587339
ABSTRACT:
A method of and apparatus for simultaneously running the cuts on a plurality of frangible sheets, such as glass, which have been scored individually and stacked on their edges with their score lines in superimposed relation on a vertical storage buck in such a manner that the scored area is unsupported. The apparatus includes a press mechanism having a base frame within which the storage buck is selectively placed and a ram device connected to a carriage which is movably mounted on the base frame and which ram device is adapted to apply a force to the outer surface of the stack of frangible sheets at a line parallel to and closely spaced from the superimposed score lines of the stack to deflect and break the stack into two units on the buck.
Also, the bottom edges of the frangible sheets of the stack rest on supports arranged on each side of the score line and placed on the floor of the buck in such a manner that one of the units falls away from the other unit thereby opening a gap between their adjacent edges to prevent chipping thereof after the stack is broken.
REFERENCES:
patent: 3779437 (1973-12-01), Yamamoto
Landes Raymond L.
Le Gros Floyd F.
Gilden Leon
Libbey-Owens-Ford Company
Simpson Othell M.
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