The vibratory movement of the comb-lay for beating up the filling is produced by the action of the cranks upon the toggle connections; and the upward and downward movement of the lay, to produce the entrance of the comb into the warp and its withdrawal therefrom, is produced by the action of the lever upon the grooved cam. The comb, _d_, is constructed of teeth, which are secured together by a bolt passing through them, and which have their bases of dovetail form to enable them to be secured between a dovetail lip, on the lay, and a dovetail clamping plate, secured to the lay by bolts.
Fig. CXXIV. illustrates the method of lifting the journals from below. The journals, of which there are four, are arranged to work in upright fixed guides on the loom framing, _d_, _e_, _f_, _g_, and are operated by treadles, which are arranged in pairs below, each journal being connected with one pair of treadles by two rods at its opposite ends. These treadles are operated by cams for each pair of treadles and each journal.
Fig. CXXV. represents the top view of the “fixed guides” containing the journals. This loom is provided with ten shuttle-boxes, (seven for the revolver, three upright), for each side, and built by the Furbush Machine Company, being a combination of their older carpet loom known as the “Murkland,” and the “Duckworth Carpet Loom.”
Preparing and Stamping of Jacquard Cards.
The Jacquard card consists of a strong, durable pasteboard cut to the exact size of the cylinder. For cutting or preparing the cards to the required size, a table is used with the different sizes of cards indicated on its surface. A sharp steel blade is adjusted to the side of the table. A heavy knife of sufficient length, and containing a second steel blade, is secured to a projecting bolt on the rear end of the table, allowing enough play for the knife to be easily raised and lowered. The blade of the knife works close against the blade fastened to the table; and when pressed down both blades rest close together. On the front side of the table is a long groove in which is a guide, fastened by a bolt and nut. This guide can be set to suit any of the marks on the table, thus regulating the size of the cards to be cut.