Fairman’s improvements, consisting of an additional cam and a set of treadles, were applied to power looms in common use. His improvements allowed the harnesses to operate more smoothly and the warp to open, enabling the shuttle to pass more easily. The end result was that the loom was better suited to weaving either light or heavy fabrics. Six pages and three illustrations in Clinton Gilroy’s 1844 book, The Art of Weaving, are spent in describing Fairman’s patent. Gilroy commented that Fairman’s loom would probably work fine for simple weaves, but for fancy patterned work, requiring 10 to 100 heddle frames, it would be totally impractical.