support for the device to regulate cam stitching in a sewing machine

摘要

1,025,226. Circlips; securing cams on shafts. NECCKI S.p.A. April 9, 1963 [May 16, 1962], No. 14125/63. Headings F2H and F2U. [Also in Divisions D1 and E2] Cams 17 are releasably mounted by means comprising a bush 1 having axial keys 7, 8 and a slot 2 engaging a tongue 4 on the cam driving shaft 3 of a sewing machine. A ring 10 rotatably mounted on a cylindrical part 9 of the support is retained thereon by a wire circlip 11 and has keys 13, 14 and an outer surface 10 corresponding to the keys 7, 8 and surface 6 of the support. When the ring is turned to align keys 7, 13 and 8, 14, the cams may be applied to or removed from the support. When the keys are misaligned the cams are retained between the keys 13, 14 and the shoulder 5.