| 摘要 |
507,568. Yarns etc.; warping yarns. SEIM, K. F., and LOWENBERG, T. Dec. 13, 1937, Nos. 34484, 34485, and 34487. Convention dates, Dec. 14, 1936, March 10, 1937; and Dec. 2, 1937. Addition to 474,173. [A Specification was laid open to inspection under Sect. 91 of the Acts, June 13, .1938.) [Classes 120 (iii) and 142 (iv)]' [Also in Group VIII] Threads are formed by the action of a single reciprocatory needle, working in conjunction with thread-guiding means, into a looped thread. The needle engages one or more threads. Figs. 8, 9, 20 and 21 show looped threads comprising "foundation threads " b, c, and a "binding thread " a, the needle hook having engaged the binding thread only. Fig. 33 shows a thread made by feeding to the needle hook three threads e, f, g, one of which is fed under variable, intermittent tension. |
