Winding – tensioning – or guiding – Tension control or brake – Supply controlled
Patent
1993-11-15
2000-05-30
Nguyen, John Q.
Winding, tensioning, or guiding
Tension control or brake
Supply controlled
2421601, 2425632, 242912, 33733, B65H 2306, B65H 1828, B65H 2600
Patent
active
060682094
ABSTRACT:
In a sheet pay-out device for paying out a sheet from a sheet roll, the sheet roll is subjected to a rotational resistance which increases with the diminishing outer diameter of the sheet roll as the sheet is paid out therefrom so that the tension acting upon the sheet may be kept at a substantially constant level over the entire length of the sheet, and a favorable feeding action for the sheet is ensured. The information on the current outer diameter of the sheet roll is preferably printed on the sheet as an optical code. This device is suitable for use as a stencil master plate sheet feeding unit of a stencil printer equipped with the function of making stencil master plates, for feeding a stencil master plate sheet from a sheet roll.
REFERENCES:
patent: 1935970 (1933-11-01), Wooster et al.
patent: 4199118 (1980-04-01), Tetro et al.
patent: 4848698 (1989-07-01), Newell et al.
Nguyen John Q.
Riso Kagaku Corp.
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