This is a very convenient method of representing a draft for the use of
the drawer-in or the weaver, but when using point paper it is better
to reserve a few picks above the design to represent as many healds
and indicate on which the end is drawn by making a small circle. Thus,
a honey-comb design is shown in Fig. 37, A. It can be reduced to and
woven on 8 picks and 8 ends, as at B, the pattern; the draft is shown
at C, the 8 ends being drawn on 5 healds. Below is shown the method of
obtaining these plans--a study of which remarks will enable the reader
to perform similar work for other cloths. Commencing at the first end
on the left-hand side, it is placed on the first heald, H 1; looking
across the pattern we find no other end working like it. Proceeding
to the second end, it is placed on heald number 2, and as the eighth
end works like it, it is placed on the same heald shaft. The third and
seventh ends are marked for the third heald. The fourth end working
differently to any other except the sixth, these two are placed on H 4;
whilst the fifth end only is left for the fifth heald. This draft, from
its appearance, is dubbed a point draft or V draft.
[Illustration: FIG. 37.]
LIFTING PLANS.
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.
[Illustration: 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.
TAPPETS.
Public-domain text, read in full here on John Shaqi.
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