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    • 1. 发明专利
    • Improvements in bobbins
    • GB437582A
    • 1935-10-31
    • GB1254935
    • 1935-04-26
    • WILLIAM EVERITT KIEFER
    • B65H75/14
    • 437,582. Bobbins. KIEFER, W. E., 213, South Madison Street, Allentown, Pennsylvania, U.S.A. April 26, 1935, No. 12549. [Class 120 (iii)] In a bobbin having a head or end consisting of a laminated disc comprising layers of textile fabric and paper impregnated with, and bonded together by, a synthetic resin, the paper layers are extended radially beyond the layers of fabric to form a smooth peripheral surface over Which the yarn passes as it is drawn off axially from the bobbin and out of contact with the fabric layers. As shown in Fig. 2, the face portions of the end of the bobbin consist of layers 1, 4 of paper with an intermediate portion consisting of layers 5 of textile fabric such as canvas or linen recessed at the periphery 2 below the peripheries of the layers 1, 4 ; in Fig. 4, the layers 6 next to the barrel of the bobbin are of paper, and the outside layers 7 are of fabric with the edge of the end rounded so that the layers of paper extend beyond those of the fabric.