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Knight's Mechanical Encyclopedia (ed. Knight), W. (search)
ter. Much engineering talent has been bestowed on weirs, and many noble examples are found on the American streams both East and West. 2. An inclosure of stakes or nets, forming a fishtrap or pond. A (Fig. 7144), salmon-weir, No. 1, Penobscot River. a, great pound.e, shore. b, second pound.f, direction of current. c, fish-pound.g, course of fish. d, leader. B, improved pound-net of Lake Erie. C, salmon-Weir, No. 3, Penobscot River. a, great pound.e, shore-line. b, secPenobscot River. a, great pound.e, shore-line. b, second pound.f, direction of current. d, leader. Fish-weirs. Weir-table. A table by which the number of cubic feet of water per minute can be ascertained by means of weirs. The table indicates the number of cubic feet per minute for each inch in width, and from one to eighteen inches in depth. The water must be set back to a dead level before it passes over the weir-board, and must have a clear discharge below the weir:— Depth of water in inches.Cubic feet per minute, according to