Fig. 128
Fig. 129
Fig. 130
When working stripes, any pattern, or any texture or style of cloth, whether single, double, or pile work, may be used for the solid stripes, or the whole cloth may consist of stripes made of combinations of gauze and solid textures. One set of stripes may be wrought quite independently of the other by having the yarn on separate beams, and when only one set of stripes is gauzed, the others are not drawn into the doup heddles, so are quite independent of them. The doup heddles may be spaced or otherwise as desired. When working with doups in front of the harness, there must be a slackener for the crossing threads for each doup standard, same as for heddle work. Figs. 128, 129, and 130 show some of the methods of slackening in use. In Figs. 128 and 129, A is the yarn beam, B the back rail, C and D the vibrating bars or slackeners, C acts as a fulcrum; and in [Fig. 128] the bar D presses the crossing yarn down and is raised by the tappet E, which may be either above or below a lever on the end of the bar C, a spring on the lever regulating it, to hold it against the tappet. In [Fig. 129] the bar D is sunk to relieve the crossing yarn, by drawing up the cord G, which is attached to the jacquard or dobby, the spring H holding the lever E down when it is relieved. [Fig. 130] is similar to [Fig. 129], but for two doups; it is shown both in perspective and in end view, and will be clearly understood. C and D must be set at such a distance above each other as will permit of the traverse of D without C being moved. Two or more shafts of heddles might also be used which could hold the crossing yarn either up or down, same as the bars, till they are acted on by the jacquard or by a tappet.