Magnetic cylinder

Details Magnetic cylinder Magnetic cylinder

1988-02-01

1989-05-23

Burr, Edgar S.

Printing

Printing members

Plate mountings

B41F 2702

Patent

active

048319309

ABSTRACT:
A magnetic cylinder is formed by stacking ferromagnetic pole disks to which spacer rings are fastened. A circular array of tabs are pierced from the plane of the pole disks. The tabs are angulated relative to said plane and they diverge radially outwardly but their edges terminate on a circle concentric to the rim of the disk to provide a margin on which a concentric spacer ring is applied and is secured to the pole by pressing the tabs back toward the plane of the pole so they wedge tightly against the spacer ring. Permanent magnets are applied to the poles between adjacent paris of tabs and they form parallel axially extending rows of magnets when the poles are stacked. At least one row is comprised of magnets which are stronger than the others to more forcefully hold down the edges of a die cutting plate or a printing plate which is wrapped around the magnetic cylinder.

REFERENCES:
patent: 2200176 (1940-05-01), Keltie
patent: 3097598 (1963-07-01), Hotop et al.
patent: 3438324 (1969-04-01), Meade et al.
patent: 3496866 (1970-02-01), Nystrand
patent: 3670646 (1972-06-01), Welch, Jr.
patent: 3742852 (1973-07-01), Leffler et al.
patent: 3919937 (1975-11-01), Kostal
patent: 4541877 (1985-09-01), Stadelmaier et al.
patent: 4676161 (1987-06-01), Peekna

Affiliated with

Also associated with

Rating

Magnetic cylinder does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Magnetic cylinder, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magnetic cylinder will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1722757