B - Operations – Transporting – 24 – C
Patent
B - Operations, Transporting
24
C
51/1
B24C 3/10 (2006.01)
Patent
CA 1084712
ABSTRACT OF THE DISCLOSURE The apparatus is provided with two rolls made of a magnetically conductive material, spaced to define a pas- sage for a sheet being worked. Either at the first ends, or at both ends of the rolls there are provided means for inducing a magnetic field, so arranged that the magnetic lines extend axially of the rolls and cross the gap there- between, whereby the rolls act as the opposite pole pieces of a single magnetic systems and are designed to retain the ferromagnetic powder which, with the rolls rotating, is pulled through the gap therebetween in a layer used to work the sheet material. The apparatus incorporates a device for levelling out the distribution of the grains of the ferro- magnetic powder throughout the length of the gap. The de- vice can be made in the form of a blade positioned to cut off a part of the magnetic powder body at the extremities of the rolls, which enhances the uniform distribution of the grains. The invention also provides for the rolls having tapering portions at their extremities, whereby the magnetic flux density at these extremities is reduced and made sub- stantially equal to the density centrally of the rolls.
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Deresh Ilya A.
Matrosov Evgeny A.
Shikhirev Boris N.
Deresh Ilya A.
Marks & Clerk
Matrosov Evgeny A.
Shikhirev Boris N.
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