Cutting – With means to convey work relative to tool station – Cut made parallel to direction of and during work movement
Patent
1976-08-12
1977-08-16
Abercrombie, Willie G.
Cutting
With means to convey work relative to tool station
Cut made parallel to direction of and during work movement
83345, 83674, B23D 2512, B26D 706
Patent
active
040418162
ABSTRACT:
An apparatus for the high-speed transverse severing of sheets from a running web utilizing interacting blades carried by counter-rotating shafts, with wrap around and retention of the web on one shaft. The blade on the other shaft has a shaped surface which defines an epitrochoid profile along its entire length. The blade on the one shaft has a straight cutting edge which accurately engages an opposed cutting edge defined by the intersection of said shaped surface and the outer peripheral surface of said blade.
REFERENCES:
patent: 2246957 (1941-06-01), Shields
patent: 3220293 (1965-11-01), Barber
patent: 3338575 (1967-08-01), Nystrand et al.
patent: 3703841 (1972-11-01), Crawford
Abercrombie Willie G.
E. I. Du Pont de Nemours and Company
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