A single page from Chambers's Encyclopedia (1881) on weaving, dealing with the introduction of convex weaving by machinery in 1867. It describes a patent convex power loom built for the Convex Weaving Company in New York under M. Opper, used mainly for woven ladies' stays (corsets). The article compares output with the hand-loom (about four pair of stays a day versus 40) and notes the use of the Jacquard to restrict the weft to part of the warp width when weaving gores.