A good method of working the reed is shown in Fig. 149, which is a back view. A is a rocking shaft supported by brackets, as _a_, on the top rail of the loom; B is a lever projecting towards the front of the loom, and the rod _b_ from it supports one end of the reed; C is another lever on the shaft A, projecting backwards, and the rod D connects it with the tappet treadles, so that when the treadle is pressed down the reed rises; about 3-1/2 in. is the usual height for it to rise. F is the upper rib of the gauze reed, and F^1 the lower one. G is the yoke of the reed. On the yoke is fastened a bar P P, connected with the strap which passes round the top rib of the reed. I I are two projections on the bar P P, through which the slide rod E E^1 passes and is fastened at the top to a bracket C on the top of the loom, and at the bottom it fits into a socket or stand N fixed to the ground; the reed slides up and down on this rod. H is a tube round the slide rod between the projections I I, and is about 1/2 in. shorter than the distance between them; to the bottom of this tube is fixed the support H^1 for the dipping rod K, which, when the yarn under it is very tight, can yield 1/2 in., along with the tube H. The reed is not positive in falling, but when raised by the tappet it falls by its own weight and that of the weight-box L, which slides on the rod E E^1. The weight-box is fastened by a rod M to the crank on the bar which supports the dipping rod, and weights it as well as the reed. Small weights, as R, about 1/4 lb. weight, can be placed in the weight-box till as much weight as is required is put on. Fig. 151 gives a view of the gauze reed mounting, with the gauze or cross-shed open. Every alternate thread of the warp is drawn into one of the gauze dents, and every other one into the harness, as shown. The harness is levelled 2 in. or 2-1/2 in. below the level of the breast beam; or, having the slay levelled with the race 1/2 in. below the breast beam when the cranks are at the top centre, push back the slay till the cranks are at the back centre, and place a straight-edge across the race, and the under edge of the straight-edge where it passes the front row of the harness will give the height for the eyes of the mails. The back shell E should be set 1/2 in. below the level of the breast beam, and should be made to vibrate with a tappet, which should lower it when the gauze shed is opened, and keep it raised for the figuring shots. A shows the position of the weaver’s reed, B is the gauze reed, C the dipping rod, D the heck or ravel which is on the harness under the harness reed or cumber board F; the ravel should be about 6 in. above the yarn and 3 in. below the cumber board, making the latter 9 in. or 10 in. above the yarn. The ravel is like a small harness reed with only one rib on it, which is placed behind the harness, being covered with an iron tube to strengthen it; in front a flat iron rod is fastened above the ends of the dents and serves as the second rib. Three wires are stretched along the ravel to keep the harness steady, in the same way that they are stretched along a harness reed, but three are sufficient, instead of having one for each row of harness. The ravel is shown in full in Fig. 150; it is about 1-1/2 in. deep (or across it), and the cumber board 3 in. deep; it is for the purpose of drawing the yarn in the harness to either side, so that when the gauze reed is rising the half dents may pass to the right and left of the threads in the harness alternately; it is this which gives the gauze twist. Two bars A A^1 (Fig. 150) extend from the ends of the frame of the heck; these slide in brackets C C^1 fastened to the sides of the loom. The lateral motion is given to it by a lever B B^1 with its fulcrum at B^1; this lever has a bowl D on its lower end, which is acted on by a wheel E driven at the proper speed to suit the shedding. E^1 is a face view of this wheel, which has a projection on it for shifting the lever.