Severing by tearing or breaking – Methods – Longitudinally of direction of feed
Patent
1986-01-24
1987-06-02
Yost, Frank T.
Severing by tearing or breaking
Methods
Longitudinally of direction of feed
83160, 83161, 834042, 83408, 225 1, 225 94, 225 99, 493363, B26F 302, B26D 900
Patent
active
046696440
ABSTRACT:
A method and apparatus of trimming a travelling web of paper along the longitudinal direction of the web comprising transporting the web through a trimming station and continuously trimming said web in said station, wherein said method comprises supporting a portion of said web on a support surface in said station such that a portion of said web to be trimmed off overhangs an edge of said support surface, contacting said overhanging portion of said web with a travelling endless member which crosses the edge of the said support surface to trap the overhanging portion of the web between the endless member and a tearing support member adjacent said edge to shear said overhanging portion continuously from the web.
REFERENCES:
patent: 2171769 (1939-09-01), Stolar et al.
patent: 2671991 (1954-03-01), Thorsell
patent: 2908201 (1959-10-01), Hellberg
patent: 3028061 (1962-04-01), Fleming
patent: 3063480 (1962-11-01), Mahony et al.
patent: 3182875 (1965-05-01), Fleming
patent: 3779786 (1973-12-01), Tone
patent: 3835754 (1974-09-01), Lewyckyj
patent: 4467948 (1984-08-01), Deslauriers
patent: 4601692 (1986-07-01), Rausing et al.
Svecia Antiqua SA
Yost Frank T.
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