Method of magnetic cylinder assembly

Details Method of magnetic cylinder assembly Method of magnetic cylinder assembly

1985-05-20

1986-12-02

Taylor, Billy S.

Winding, tensioning, or guiding

Coil holder or support

Spool or core

291484D, 101382MV, 1014151, 335288, B41F 2702, B41F 2706, B65H 8100, H01F 702

Patent

active

046259287

ABSTRACT:
A magnetic cylinder and plate for offset printing. The cylinder has annular magnets and pole pieces. The magnetic circuit is completed through a printing plate. The magnetic flux substantially saturates the pole pieces and plates. The area ratio of the pole pieces to the magnets is greater than about 0.45 to 1 and preferably about 0.6 to 1. In assembling the magnets and cylinder, the magnets are wrapped into slots between the pole pieces. The magnets are angularly displaced so that the leading magnet is positioned between the pole pieces before it is in proximity to the trailing magnet and demagnetization of the magnets is minimized.

REFERENCES:
patent: 3643311 (1972-02-01), Knechtel et al.
patent: 3810055 (1974-05-01), Wright
patent: 3824926 (1974-07-01), Fukuyama

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