Pressure roller assembly

Details Pressure roller assembly Pressure roller assembly

1984-05-24

1988-11-22

Crowder, Clifford D.

Typewriting machines

Sheet or web

Including friction-feed means

4006376, B41J 13048, B41J 13076

Patent

active

047861932

ABSTRACT:
A truck assembly unit has two identical parts which lock together capturing two rollers. The truck assembly unit is supported on a cylindrical portion of a support bar so that it can rotate through a limited range, the range being limited by a ridge running along the bar. The bar is affixed eccentrically on journals captured in the frame of a typing machine so that rotation of the bar moves the supported truck assembly towards and away from a platen. Arms supporting the rollers provide flexure to bias the rollers against the platen.

REFERENCES:
patent: 932307 (1909-08-01), Myers
patent: 979000 (1910-12-01), Gibbs
patent: 1023172 (1912-04-01), Purdy
patent: 1478380 (1923-12-01), Crawley
patent: 3490670 (1970-01-01), Carrell
patent: 3561660 (1971-02-01), Nicol
patent: 3756589 (1973-09-01), Carbine
patent: 4364683 (1982-12-01), Shakib
Lloyd; IBM Tech. Disc. Bull., vol. 23, No. 2; Jul. 1980, pp. 678 and 679.

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