[Fig. 350] is another fancy effect on the same principle. The marks on the plain ends show when these ends are lifted.
When the thick crossing ends all work in the same direction a “wave” effect is produced, which is often employed in conjunction with the “diamond” or “eye” effect, obtained from the opposite working of the two thick ends.
FIG. 350.
FIG. 351.
By using two doups a great variety of effect can be obtained. [Fig. 351] shows a method much practised of making the picks bend out of a straight line. It is obvious that this will require two doups, because one doup thread has to be lifted for the first six picks, and the other doup thread does not lift until the fourth pick in the pattern.
FIG. 352.
Check Lenos.—Where alternate squares of leno and plain are required to be woven, it is necessary to have two doups if the leno is required to be woven four ends in a dent, with two ends crossing two, as in [Fig. 352]. It has been shown how a check leno or gauze can be woven with only one doup at [Fig. 144], but the principle only applies to pure gauze, or one end crossing one. The draft and pegging plan for weaving a small check on the principle of [Fig. 352] is given at [Fig. 353], where it will be seen that eight shafts or staves are required with two doups and two slackeners.