Printing press with dampening liquid spray control apparatus and

Details Printing press with dampening liquid spray control apparatus and Printing press with dampening liquid spray control apparatus and

1995-11-14

1997-04-22

Fisher, J. Reed

Printing

Planographic

Dampeners

101366, B41F 726, B41F 730

Patent

active

056221100

ABSTRACT:
A printing press (10) with a dampener roller (16) and a spray bar assembly (12) for spraying dampening liquid (20) onto the dampener roller is provided with a dampening liquid spray control apparatus (15) including a control member (18) with a diagonal blocking section (40) for blocking dampening liquid (20) from impinging upon selected locations on the dampener roller (16) when there is a relatively narrow web running in the press and a transverse deflecting section (42) for deflecting dampening liquid (20) onto the dispenser roller at preselected locations adjacent the end of the dampener roller (16A) when a relatively wider web is running in the press to reduce scumming and an adjustable mounting apparatus (24, 26, 28, 30, 31, 34 and 37) to mount the control member (18) in different positions to achieve different dampening results.

REFERENCES:
patent: 2448226 (1948-08-01), Marsden
patent: 3924531 (1975-12-01), Klingler
patent: 4044667 (1977-08-01), Smith, Jr.
patent: 5014615 (1991-05-01), Lin et al.

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