Apparatus for preventing contact of wet ink sheets with printing

Details Apparatus for preventing contact of wet ink sheets with printing Apparatus for preventing contact of wet ink sheets with printing

1988-01-19

1990-04-24

Fisher, J. Reed

Printing

Rolling contact machines

Rotary

101232, 101420, B41F 2108, B41F 522, B41L 2110

Patent

active

049190482

ABSTRACT:
A printing press has an apparatus for preventing contact of wet ink sheets with the chain delivery mechanism and for drying the wet ink carried on the sheets prior to the stacking of the sheets. The printing press has an impression cylinder and a blanket cylinder through which sheets are drawn by the chain delivery mechanism. The chain delivery mechanism has two sprockets mounted to a shaft, each of which rotates runs of chain to pull the sheets from the cylinders. A nozzle is mounted adjacent the shaft for discharging jets of air against the sheets to push them away from the shaft. An air compressor supplies air to the nozzle. A heating element is disposed between the air compressor and the openings of the nozzle to heat the pressurized air stream to a selected temperature sufficient to dry the wet ink carried by the sheets.

REFERENCES:
patent: 2022593 (1935-11-01), Fuykers
patent: 2065032 (1936-12-01), Spooner
patent: 2138178 (1938-11-01), Lang
patent: 2811920 (1957-11-01), Richardson
patent: 3334897 (1967-08-01), Sharkey
patent: 3779545 (1973-12-01), Schuhmann et al.
patent: 4060238 (1977-11-01), Simeth
patent: 4085930 (1978-04-01), Weisberger et al.
patent: 4233901 (1980-11-01), Mallinson
patent: 4395949 (1983-08-01), Jeschke
patent: 4504220 (1985-03-01), Sunakawa et al.
patent: 4572071 (1986-02-01), Cappel et al.
patent: 4722276 (1988-02-01), Tyler

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