Device for breaking a glass plate so as to obtain a sharp edge
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United States of America Patent
Stats
-
Mar 17, 1981
Grant Date -
N/A
app pub date -
Jun 26, 1979
filing date -
Jul 4, 1978
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Apparatus for making glass knives for cutting specimens for viewing by optical microscopes from thin glass plates comprises the use of a breaking rule bearing against one side of a plate, at least two breaking knobs bearing against the other side of the plate on opposite sides of the breaking rule, and a scribing device arranged between the knobs to prepare a scribing line in the plate parallel with the breaking rule, the breaking rule being displaceable with respect to the scribing line to control the edge angle of the resulting knife.
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Cited Art Landscape
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