| 摘要 |
<p>1,013,857. Delivery stopping. TEXTILE & CHEMICAL RESEARCH CO Ltd. Mar. 3,1964 [March 5; 1963], No. 9039/64. Heading D1D. A device for cutting a yarn having a high breaking load, e.g. a tyre cord of synthetic material, comprises a member 3 pivoted at 2 and acted upon by a spring 7 such that a knife 4 mounted therein is urged towards a co-operating groove 9 in a fixed element 8, a latch 13 normally engaging an extension 6 of the plate 3 to keep the knife 4 and groove 9 spaced about the yarn F and means to unlatch plate 3 to serve yarn F in the event of a thread breakage. As shown the latch 13 is pivoted on a stirrup 10 which carries a coil 11 having a core 12. Upon breakage of the yarn a pivoted feeler 15 having a guide 15A about which the yarn normally passes, pivots under the influence of an adjustable counter weight 17 to close an electrical circuit containing the coil 11; the latch 13 is thus attracted by and pivoted into contact with core 12 and the plate 3 allowed to pivot to serve the yarn. Used in a yarn stretching device the feeler 15 is located between the stretching rolls to which the yarn passes from a supply package via a guide 5 in the plate 3.</p> |
