The making out of the Drawing-in Draft, which must indicate the arrangement or the rotation in which the warp-threads are drawn in, can be done in various ways, of which we will mention the two most popular methods. The first is by using common designing paper, and indicating the rotation by dots. The horizonal rows of squares represent the shafts, the vertical rows the warp-threads. Fig. [1] shows four repeats of a straight draw on six harness marked out according to this idea. A second method is to use paper ruled horizontally, the lines representing the shafts; and to draw vertical lines
for the warp-threads. The latter are made to stop on the lines bearing the number of the shafts into which the respective threads are to be drawn. Fig. [2] is such a draft, illustrating six repeats of a draw on four harness from "Front to Rear."
SKIP DRAWS
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Fig. 3 |
Fig. 4 |
The draws coming under this heading are used very extensively in silk weaving, especially for fabrics requiring a heavy warp and a large number of shafts. Enter first the odd and then the even shafts. An 8 harness draw of this kind, of which three repeats are shown in Fig. [3], runs as follows: 1, 3, 5, 7, 2, 4, 6, 8.
Fig. [4] is a 12 harness draw of the same class.