Differential flow guiding air bearing

Details Differential flow guiding air bearing Differential flow guiding air bearing

1977-09-21

1979-03-06

Schacher, Richard A.

Advancing material of indeterminate length

By fluid current

And web storage

271195, 271250, B65H 1732

Patent

active

041426614

ABSTRACT:
Lateral force is applied to a web material by an air bearing for the purpose of guiding the web against a fixed reference edge. A bearing surface over which the web is movable includes an arrangement of holes for establishing a differential flow across the bearing surface to produce a lateral force on the web in the direction of the reference edge. The holes are arranged asymmetrically relative to the center line of the bearing surface but typically are parallel to the reference edge. The differential air flow is established by controlled sizes of apertures through the bearing plate, variable air permeability of the material forming the bearing surface or the like. A common source of pressurized air is coupled to all of the bearing surface holes.

REFERENCES:
patent: 3213204 (1965-10-01), Okamura
patent: 3268222 (1966-08-01), Off
patent: 3281040 (1966-10-01), Grant
patent: 3420424 (1969-01-01), Barbeau
patent: 3761002 (1973-09-01), Baumann
patent: 3850358 (1974-11-01), Nettles
patent: 3893176 (1975-07-01), Jones
IBM Technical Disclosure Bulletin, vol. 15, No. 9, Feb. 1973, D. W. Jones and K. Y. Wong, p. 2743.
IBM Technical Disclosure Bulletin, vol. 15, No. 9, Feb. 1973, D. W. Jones and A. M. Patlach, pp. 2744-2745.
IBM Technical Disclosure Bulletin, vol. 17, No. 4, Sep. 1974, R. C. Durbeck and D. W. Jones, p. 1188.
IBM Technical Disclosure Bulletin, vol. 18, No. 11, Apr. 1976, P. A. Stevenson, p. 3567.
IBM Technical Disclosure Bulletin, vol. 5, No. 4, Sep. 1962, Creating Transverse Curvature With Air Jets of Varying Sizes, R. V. Rogers, p. 21.

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