Cutting – Other than completely through work thickness or through work... – Scoring
Patent
1978-09-28
1980-07-01
Meister, J. M.
Cutting
Other than completely through work thickness or through work...
Scoring
83886, B26D 308
Patent
active
042100526
ABSTRACT:
A method of and apparatus for precisely locating and quickly producing intermittent, uniform score lines in a surface of a moving sheet of material by first moving a pair of axially aligned gauge wheels into contact with the sheet material and then alternately moving a scoring tool positioned therebetween, into and out of scoring engagement with the surface of the moving sheet. The gauge wheels are mounted on the movable end of a pivotally mounted arm for movement, by a diaphragm motor, along a path lying in a plane extending normal to and longitudinally of the sheet material. The scoring tool is mounted on the arm for movement independent thereof by a double acting motor, and into and out of scoring contact with the sheet material. Also, the scoring tool is provided with an adjusting device for extending it relative to the gauge wheels and an abutment is provided to limit its movement away from the sheet material. This construction allows the scoring tool to be quickly moved into and out of engagement with the surface of the sheet material to precisely begin and end a score line and to produce a uniform score line by being urged into engagement therewith with a substantially constant force regardless of any variations occurring in the thickness of the sheet material.
REFERENCES:
patent: 2948991 (1960-08-01), Walters et al.
patent: 4070936 (1978-01-01), Duncan
Libbey-Owens-Ford Company
Meister J. M.
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