More than four colors, however, can be produced upon
each side by multiplying the number of colored wefts and warps
employed. If the fabric woven be a three-ply, with the addition of the
ingrain warps thrown on each face of the fabric, then five or more
colors would be imparted to the carpet, as any number of colors can be
used to form a given pattern, by planting or arranging the colors in
the warp, and the remaining colors by the wefts, and so on. The
ingrain warp thread, therefore, together with the weft, used as stated
above, produces an effective pattern on both sides of the carpet;
consequently, it becomes reversible, and this can be accomplished
whether the carpet woven be two, three, or other number of ply. By
reference to the accompanying sheets of drawings, this invention will
be better understood. Fig. 1 is an enlarged cross section of an
improved carpet, a three-ply, that is to say, it is a carpet wherein
three shuttles are employed, each carrying a differently colored weft;
a represents the weft threads which may be composed of any suitable
fiber, b and c are cotton or other fine warp threads, which are
employed for binding the weft together, while d and e represent the
ingrain or woolen warp, where it will be seen that each ingrain warp,
besides lying between the weft, is thrown on both sides of the fabric,
for the purpose of forming figures thereon.
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