It is now necessary to indicate when the healds shall be lifted to make the cloth with the given draft. A portion of the point paper is taken as many spaces wide as there are healds, and as long as there are picks to the round.
Taking [Fig. 37] again, for example, we find the lifting plan at D, the ends and picks being numbered. The marks indicate where the heald has to be lifted at the pick indicated; thus, taking the first heald, we find it to be lifted at the 2nd, 3rd, 4th, 5th, 6th and 8th picks, a working necessary for the first end, which is drawn on the heald in question. The pegging plan for a dobby is a modification of this. (See page 106.)
For a straight draft the pattern is exactly a duplicate of the lifting plan. Other names for this plan are tie, working design, treading plan, and shedding plan. The tie is a plan serving the same purpose of the lifting plan, but somewhat differently arranged, the end being laid horizontally in a line with the heald through which they are drawn; thus, for the honeycomb, [Fig. 37], the tie-up is shown at [Fig. 38], in which A is the tie-up.
FIG. 38.
The lifting plan for [Fig. 32] is shown at [Fig. 34], A, while the tie-up is shown at [Fig. 34], B.
Shedding.
The principal motions for shedding—i.e., raising the ends in the required order for producing the desired weave of cloth—are tappets, the dobby, and the jacquard. The tappets and the dobby are described in this Chapter. The tappets, which have the smaller range of work, are taken into consideration first.