Cutting – Other than completely through work thickness or through work... – Scoring
Patent
1980-07-31
1981-12-29
Meister, James M.
Cutting
Other than completely through work thickness or through work...
Scoring
83169, 83886, 33 32C, C03B 3310
Patent
active
043076432
ABSTRACT:
A machine for cutting glass or other fracture sensitive sheet material includes a support bar for supporting a plurality of cutting heads. The support bar is pivotally connected to a crossbar suspended above the working surface of the machine. The ends of the crossbar are attached to bushing blocks which slide over guide shafts secured to opposite edges of the base of the machine. A lever arm is attached at one end to the support bar for simultaneously pivoting each of the plurality of cutting heads downwardly toward the working surface and for moving the cutting blade heads across the material to be scored. An adjustable stop secured to the crossbar limits the extent to which the support bar can be pivoted by the lever arm, thereby limiting the downward pressure exerted by the cutting heads upon the sheet material. A lubricant reservoir is secured to the base of the machine for simultaneously lubricating each of the cutting heads. A plastic strip of a thickness equal to the sheet material is positioned adjacent an edge of the sheet material to prevent chipping.
REFERENCES:
patent: 3399586 (1968-09-01), Insolio et al.
patent: 4098155 (1978-07-01), Insolio
patent: 4175684 (1979-11-01), Butler
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