US Patent No. 1,449,921, granted March 27, 1923 to Arthur Edward Stroud of Long Eaton, England, for improvements to twist lace machines. The invention adds weft thread carriers, in tube or needle form, that lay a weft thread between the warp threads and bobbin threads. The specification describes how the carriers are mounted on bars carried by the comb bars and how jacquard-driven levers or pivoting arms actuate them. Two sheets of drawings and two claims are included.