Paper support bar for a sheet-fed printing press

Details Paper support bar for a sheet-fed printing press Paper support bar for a sheet-fed printing press

1985-11-01

1987-05-19

Eickholt, E. H.

Printing

Rolling contact machines

Rotary

101420, B41F 1324

Patent

active

046658238

ABSTRACT:
A paper support bar for replacing the "star wheels" in a sheet-fed, offset printing press, or the like, having a chain delivery system. The bars are formed from hollow cylinders of a resiliently rigid, non-brittle material having adjustable supports on the ends for releasably connecting the bar to the chains of the press and for centering and horizontally supporting them. In the preferred embodiment, the plastic material is a plastic capable of resisting heat generated by infra red or thermal drying devices sometimes used on the delivery end of a press such as polypropylene or a high density polyethylene and contains an electrically conductive carbon black, antistatic agent, or other triboelectric charge directing agent.

REFERENCES:
patent: 3642274 (1972-02-01), Herrington et al.
patent: 3780925 (1973-12-01), Ternes
patent: 3791644 (1974-02-01), DeMoore
patent: 3929069 (1975-12-01), Jahn
patent: 3972413 (1976-08-01), Simeth
patent: 4297945 (1981-11-01), Sano et al.
patent: 4369963 (1983-01-01), Jamieson, Jr.
patent: 4402267 (1983-09-01), DeMoore
patent: 4524964 (1985-06-01), Jamieson, Jr.
patent: 4530495 (1985-07-01), Zimmermann
patent: 4550904 (1985-11-01), Union
"Method for Improving Friction Stability of Rubber-Like Material"; Xe Disc. Journal, vol. 5., No. 4, Jul./Aug. 1980, p. 367.
Plastics World, Jan. 1982, vol. 40, No. 1, pp. 5, 36.

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