FIG. 218.
FIG. 219.
FIG. 220.
Drafting.—The arrangement of the draft is a very important matter in connection with dobby or tappet weaving. In the case of simple twills, satins, and other regular weaves, as each end, or warp thread, in the design is required to be lifted differently, a separate stave is required for each end in the design, but in some patterns this is not the case.
[Fig. 221] is a stripe design composed of twenty ends of five-shaft satin and sixteen ends plain. The least number of shafts on which this could be woven is seven, five for the satin and two for the plain. The number of picks to the round, or the number of picks on which the pattern repeats is ten, ten being the least common multiple of two and five. The draft may be shown either by ruling lines to represent the staves as at [Fig. 222], or on point paper as at [Fig. 223]. The latter is the readier way, and is the way usually practised. The order of lifting the staves is shown in the “pegging plan” ([Fig. 224]). The term “pegging” refers, of course, to the dobby loom; if the design is woven on a tappet loom, “tappet plan” would be a more correct term to use.
FIG. 221.
