Advancing material of indeterminate length – Plural material-moving means
Patent
1993-02-19
1994-08-16
Stodola, Daniel P.
Advancing material of indeterminate length
Plural material-moving means
101417, B41F 1302
Patent
active
053379446
ABSTRACT:
A paper web guide device for guiding and conveying a paper web comprises a plurality of guide rollers arranged in a parallel configuration in a printing system. The guide rollers comprise a mix of driving guide rollers equipped with a driving mechanism and braking guide rollers equipped with a braking mechanism. The driving guide rollers are controlled so as to make the revolving speed of the guide rollers faster than the travelling speed of the paper web. The braking guide rollers are controlled so as to make the revolving speed of the guide rollers slower than the travelling speed of the paper web. This guide device can exactly perform a cleaning operation on the guide rollers within a short period and without accumulating the tension applied to the travelling paper web.
REFERENCES:
patent: 1994404 (1935-03-01), Reiners et al.
patent: 3469751 (1969-09-01), Tyrner et al.
patent: 3837550 (1974-09-01), Levy
patent: 3858870 (1975-01-01), Yabe et al.
patent: 4563950 (1986-01-01), Fisher
patent: 4930415 (1990-06-01), Hara et al.
patent: 4951567 (1990-08-01), Rodi et al.
Kabushikigaisha Tokyo Kikai Seisakusho
Stodola Daniel P.
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