Oscillating shuttle mechanism for sewing machines

摘要

341,756. Sewing-machines. SINGER MANUFACTURING CO., Ltd., Singer, Clydebank, and EAGLESHAM, R., 36, Garthland Drive, Dennistoun, Glasgow. Feb. 21, 1930, No. 5787. [Class 112.] Lockstitching by shuttles.- The concave face 3 of the shuttle driving head 1 is provided with a leaf spring 4 secured by screws 5, 6. The extremities 41, 62 of the spring are clear of the head, so that in oscillating the shuttle, a noiseless, partly resilient drive is effected.