Fig. 33 illustrates the side view of a link, and the method of jointing: _a_, the peg; _c_, the joint of link; the length of each link being 3-1/2 inches, and the height 1/3 inch at the joint; the diameter of the pegs at the bottom, 3/8 inch; the height of each peg, 1/2 inch.
Fig. 34 shows the top view of Fig. 33, illustrating two complete links. The body of each link is 2-3/8 inches long; the head, 5/8 inch long; the slot, 1 inch long. _a_ represents the peg; _e_ the empty spaces between each pair of links, to receive the teeth (1/2 inch high) of wheel (8 inches diameter, Fig. 36). This wheel holds and guides the endless chain; also imparts the required movement to the cards. It is regulated by a cam arrangement. [See Fig. 35.]
Two needles are required for each of the three series of lace-holes, or six needles in all. The process of lacing each series is the same; as the three horizontal working needles are connected to one rod; thus, by working this rod, they are operated correspondingly. The three vertical working needles are arranged in the same manner, and also the three loop-guides.
Fig. 37 shows a top view of one of the loop-guides, _d_, _a_, _c_. The dotted lines near a represent the position of the corresponding “presser” for the cards during the lacing process. Length of strip _c_, = 5 inches; length of strip _d_, = 13 inches; width of each strip, = 3/4 inch; width of empty space, between _c_ and _d_, = 3/4 inch. _b_ indicates the top view of the vertical working needle. Arrow, _S_, direction the cards run while being laced. As previously mentioned, two needles are required for each series of lace-holes.
Fig. 38 shows the top view of the needle, which works in a horizontal direction. Fig. 39 side view of the same. Fig. 38 is shown threaded, whereas Fig. 39 is not threaded, so as to give a clear view of the eye. This needle is fastened to its holder by means of screw, _d_; the blade of the needle extends 3-1/2 inches; width of needle at bottom, 3/16 inch.
Two different sets of lacing twines are used, viz.:
1st. Set of fine thread running from three spools shown in a vertical position on the side of the machine, used for threading the needles running in a horizontal direction. In our explanation we denote this twine with “_a_.” (7-ply, No. 14 soft laid mule yarn.)