Roller with adjustable length

Details Roller with adjustable length Roller with adjustable length

1976-06-07

1978-07-11

McIntosh, John P.

Coating apparatus

With means to apply electrical and/or radiant energy to work...

With electromagnetic and/or electrostatic removal of...

29116R, 29125, 101407R, G03G 1316

Patent

active

040994872

ABSTRACT:
A pressure roller is composed of a plurality of roller sections, one of said roller sections having a greater diameter than the residual ones. All sections are carried by a common shaft, but the sections having a smaller diameter are eccentrically located on the shaft and freely rotatable thereabout. In this way, by turning the shaft the smaller sections may selectively become situated in such a relation versus the larger ones that the periphery of all sections acquire a common tangent plane in view of an opposed surface. The opposed surface may be a xerographic drum or belt and the pressure roller, after applying a suitable electric DC potential to it, may serve as part of transfer device adapted for being used for the transfer of toner image towards a paper passing between the nip of the pressure roller and the xerographic drum or belt, whereby the effective width of the pressure roller is a function of the width of the paper.

REFERENCES:
patent: 492072 (1893-02-01), Vaught
patent: 2446211 (1948-08-01), Clark
patent: 2527811 (1950-10-01), Hall
patent: 2803126 (1957-08-01), Meyer
patent: 3368894 (1968-02-01), Matkan et al.
patent: 3866573 (1975-02-01), Szostak et al.
patent: 3893413 (1975-07-01), Weiler

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