| 摘要 |
In winding multiple strips of magnetic material, the strips, in passing on their way to a common winding mandrel, are applied to engage an arc-shaped area of the cylindrical surface formed by the outer edge surfaces of a plurality of juxtaposed braking rings rotatively mounted upon a stationary drum. The rings are spaced by intervening spacing rings being of lesser diameter and mounted upon the drum to move freely axially but locked against relative rotation therewith. The stack of alternate braking and spacing rings is held under axial pressure to create a predetermined resilient pressure between the adjoining rings, and the strips to be wound are held in contact with the braking rings by permanent magnets embedded in or a ribbon of magnetic material affixed to the outer surfaces of the rings.
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