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Ce-ment′ed-back Car′pet.

In forming cemented-back carpet a number of warp-threads a a are arranged in a frame, and are brought into a convoluted form by means of metallic plates b b, which are laid strictly parallel. The under side of the warps thus doubled or folded are then dressed to raise a nap, and this surface is then smeared with cement and backed by a canvas or coarse cloth. When dry, the metallic strips b b are removed by cutting the loops, and leaving a pile surface, as in the Wilton carpets.

Another mode is to wind the colored yarns around wires, which are then laid parallel; one surface treated with cement and backed with canvas; the other cut like a Wilton carpet when the backing is dry.

Another mode is to fill a square box with parallel yarns laid according to a design, so that a transverse section across the yarn will show the pattern. The ends of the box being open, a piston is introduced at one to expel the yarns at the other. At the discharge-end, the surface, being cut fair, is cemented, and a cloth applied to it. A quantity of the yarn, equal to the length of the pile, is then cut off, and adheres to the backing. The surface is again cemented, the yarn protruded, the backing applied, the pile cut off, and so on.

1877.

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Wilton (1)
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