Knight's American mechanical dictionary : a description of tools, instruments, machines, processes and engineering, history of inventions, general technological vocabulary ; and digest of mechanical appliances in science and the arts . 26pieces of such cloth per day. On the old liaiid-looiii of 1800, one man wouldattend to one loom, and would produce 4 pieces atan expense of tJti cents each. In plain cloths the warp and welt threads are ofabout eipuil fineness. Yarns of two ditterent sizesintroduced into tlie web produce a sort of striping;.When the warp and weft threads are of ditferentcolors
Knight's American mechanical dictionary : a description of tools, instruments, machines, processes and engineering, history of inventions, general technological vocabulary ; and digest of mechanical appliances in science and the arts . 26pieces of such cloth per day. On the old liaiid-looiii of 1800, one man wouldattend to one loom, and would produce 4 pieces atan expense of tJti cents each. In plain cloths the warp and welt threads are ofabout eipuil fineness. Yarns of two ditterent sizesintroduced into tlie web produce a sort of striping;.When the warp and weft threads are of ditferentcolors a shot pattern is produced. Striped patterns are formed by introducing at regular intervals the different colored threads re-quired ; checks, by inserting ilirterent colored threadsat proper distances in the warp and crossing themin tlie weft by threads of the desired color in sulti-cient number to give tlie desired width. In twills, each weft-thread does not cross alternatewarp-threails, but only the recurrent third, fourth,lifth, or sixth, the required number being insertedthrougli eaih lieald. See Twill. Iiled work, as velvet, velveteen, fustian, or piled ?carpet, is formed by introducing a third thread, previ- Flg. Figure-Loom, onsly looped by weaving it over wires the breadth ofthe fabric. In some kinds these are cut (rat with aknife, in others they are simply withdrawn from theloops. One mode of making goods in patterns of coloredfigures is by means of a variety of shuttles, eachcarrying its own colored thread. These shuttles arearranged in a box whioh may be raised or lowered,so as to bring tlie required shuttle opposite to thepicker which drives througli the shed. This motionof the shuttle-box is obtained by means of a P.\r-TERN-wiiEEL or Pattehn-chain (which see). Figures, previous to the invention of Jacquaid,were formed in the dratr-lomn. In this, the warp-threads were arranged in sepa-rate grcnips so disposed as, in conjunction with theweft-thrends, to form
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