US Patent No. 1,053,478, granted 18 February 1913 to Arthur Burgess of Philadelphia, for a twist lace fabric with a new cross-net ground made on the Nottingham lace curtain machine. The new net has a double crossing of warp threads in each mesh, which turns the usual diamond-shaped cable net mesh into a nearly round one. The specification describes modified guide-bar cams, jacquard-controlled jacks, and the eight-motion gait sequence of the warp bars, and ends with two claims. Two sheets of drawings show the fabric, the thread course diagram, the machine layout and the cams.