Oscillating printing press roller having a plurality of separate

Details Oscillating printing press roller having a plurality of separate Oscillating printing press roller having a plurality of separate

1991-02-04

1991-11-05

Fisher, J. Reed

Printing

Inkers

Roller

101148, 101DIG38, B41F 3114, B41F 726

Patent

active

050623621

ABSTRACT:
A pneumatic axially oscillated, frictionally rotated roller is disclosed and may be used in the ink or damping systems of a printing press. The roller features an internal air piston-cylinder construction that causes the axial motion but permits the roller to freely rotate. Further, several air cylinders can be stacked on each side of the roller to permit even a small diameter roller to be pneumatically oscillated. The roller, when used as an ink form roller, may be operated to oscillate in synchronization with an adjacent oscillating, vibrating roller to continually diagonally redistribute the ink so as to eliminate or minimize "ghosting". The foregoing is accomplished by controlling the oscillation of the form roller to move axially in a direction opposite of that of the vibrating roller. The lengths of the strokes of the two rollers may differ or be the same. The length of axial movement or stroke of the form roller can be varied, while maintaining synchronization by varying the speed of the axial motion, a slower speed yielding a shorter stroke and a higher speed yielding a longer stroke for a given half cycle.

REFERENCES:
patent: 2300949 (1942-11-01), Luehrs
patent: 2319615 (1943-05-01), Luehrs
patent: 2703050 (1955-03-01), Faeber
patent: 3179047 (1955-04-01), Ordway
patent: 3983812 (1976-10-01), Schramm
patent: 4295423 (1981-10-01), Johne et al.
patent: 4777877 (1988-10-01), Lemaster

Affiliated with

Also associated with

Rating

Oscillating printing press roller having a plurality of separate does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Oscillating printing press roller having a plurality of separate, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Oscillating printing press roller having a plurality of separate will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-492609