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SPIDER NET.

Fig. 58.

is a plan of this mounting, with specimens of the varieties it produces, in which the different crossings of the ground and whip may be easily traced. The back leaves of the gauze are marked 1 and 2, the standards A and B, and the doups, a and c. The back leaves of the net are marked 3 and 4, and these are all behind the reed as formerly noticed. In the front, between the race board and the reed, are placed the whip standards Cand D, with their respective bead lams, v and I. The position of the whip standards, with respect to the threads of warp, is pointed out by dots on the shafts C and D, one on each side of its respective bead lam; these lams appear in the fig. as if a little slackened by the open shed, and crossing each other in front of the standards, exhibit the whip threads passing through the beads at, v and z, (see Fig. 58.) The crossing of the bead lams, when the open shed is fully formed, will appear to more advantage in Fig. 56, the threads of gauze warp being in the position of the letters, v and r.

By comparing this plan with those of the gauze (Figs. 49 and 50) and whip net (Fig. 55) considered separately, the process of taking the warp through the headles and tying up the treadles will be obvious, and can require no further explanation ; for each of the mountings are tied to the treadles in the same order as if they had been mounted separately.

It may be necessary to observe, however, that when the full gauze mounting is employed, as in the present example, or when the back doup and standard are omitted, each treadle will produce similar sheds in both mountings; that is to say, either both open or both cross, but when the gauze part is mounted with the bead lam and standard, it is necessary to cord the treadles so as to produce the open shed of the gauze along with the cross shed of the whip; otherwise the whip would not run in between the threads of gauze warp to form the net distinctly as represented in the specimen. (See Fig. 58.)

The apparatus for slackening the whip in the cross shed, as well as the bridles for preventing the bead lams from being drawn too close to their standards, are also necessary in this mounting, and are applied in the very same manner as in the whip net.

PATENT NET, OR NIGHT THOUGHT.

This net, like the preceding, consists of a gauze ground interwoven with whip. Two sets of mounting are therefore requisite, one for the ground and the other for the whip or net part ; but, as this net involves greater variety than any of those already explained, it requires four treadles to work one set of the pattern. Either the full mounting or one of the contracted methods may be employed for the gauze part, and the whip requires two back leaves, and two bead lams and their standards. When the full gauze mounting is employed three warp rolls are requisite, one for the ground and two for the whip. These last are necessary, as one half of the whip is occasionally crossed while the other half is straight and parallel, and consequently each half must be slackened independently of the other. When the gauze part is woven either with the bead lam shaft, or by omitting the upper doup and standard, two rolls are also necessary for the ground, as formerly described. Some add another roll for the selvages, which, being woven plain without any twist, do not work up equally with the other warp. This, however, is commonly avoided by beaming the selvages on the same roll with the ground, and suspending a small weight to each below the roll to keep them moderately tight, and the slack part is taken in at the face of the cloth, when necessary, at the end of the piece.

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is a plan of the night thought mounting, with a specimen of the cloth, as in the other examples. The shafts marked 1 and 2 are the back leaves for the gauze part, the back leaves for the whip being marked 3 and 4. 5, 6, 7 and 8 are the doups and standards of the ground mounting, which in this example is a full mounting; the bead lams and their standard which are before the threads are marked, a, e, i, o, and are placed exactly in the same position as in the other mountings for net weaving.

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is a front elevation of the bead lams and their standards, representing their position when the open sheds are formed ; a, is the shaft of the upper bead lams, and o, that of the under ones; e, and i, are the back and fore standards respectively. In the shed here exhibited, which is opened by the treadle marked 4, (see Fig. 59) both the upper and under lams are slack, and after crossing two dents of gauze and one of whip, the former are sunk and the latter raised by the whip which is now acted upon entirely by the back leaves. That is, the upper lams cross from their standards at u, to the interval x, where they are sunk; and the under ones from d, to c, where they are raised (see Fig. 60.) The treadle 2 (see Fig. 59) draws both the upper and under lams tight to their standards, by which the former are sunk and the latter raised; at the same time the ground forms the open shed. In the shed formed by treadle 1, the upper lams are tight and sunk by their standards, while the under ones are slack and raised by the whip, the ground forming the cross shed. All this will plainly appear by an attentive perusal of the two Figs. 59 and 60

PRINCESS ROYAL NET. This net is woven in a mounting the very same as that of Night Thought, but with a small difference in the order of taking the whip through the headles and tying up the treadles.

But as these are distinctly marked on the plan Fig. 61.

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they can require no further explanation. Fig. 62

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shows the crossing of the bead lams in the open shed in the same manner as in the preceding net.

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