Severing by tearing or breaking – Breaking or tearing apparatus – Combined with preliminary weakener or with nonbreaking cutter
Patent
1977-05-16
1978-08-08
Yost, Frank T.
Severing by tearing or breaking
Breaking or tearing apparatus
Combined with preliminary weakener or with nonbreaking cutter
83 92, 214 6H, C03B 3306
Patent
active
041051505
ABSTRACT:
Glass tubes to be cut are placed side-by-side on an inclined bed which has an anvil at one end, and a movable measuring bar or stop spaced downstream of the anvil to define the tube length desired. The tubes are adapted to slide downwardly on the inclined bed to engage the stop, and can be clamped to the bed so that a glass scoring tool and break off shoe, provided in a movable carriage, can score and break the tubes over the anvil after the stop has been retracted. Superstructure above the bed includes a continuously driven shaft together with parallel guide rods for the carriage. Selectively casterable wheels in the carriage engage the continuously driven shaft to move it in one, and an opposite direction, and the carriage includes means for retracting the scoring tool and break off shoe for the return movement of the carriage. A magazine is provided below the group of cut tube segments, and has a floor which is indexed downwardly in response to completion of each cutting pass by the carriage. The magazine is itself movable on tracks to clear the retractable stop as the latter returns to its active position for measuring the next group of tubes to be cut.
REFERENCES:
patent: 1340219 (1920-05-01), Folk
patent: 2304926 (1942-12-01), Juvinall
patent: 3320842 (1967-05-01), Bailey et al.
patent: 3718268 (1973-02-01), Insolio
patent: 3831472 (1974-08-01), Sasaki
patent: 3865288 (1975-02-01), Hunsinger et al.
patent: 3926081 (1975-12-01), Roberts
patent: 3955689 (1976-05-01), Wallace
The Fletcher-Terry Company
Yost Frank T.
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