7975. Toyoda, S. April 14. Loom healds; shedding- motions; stop-motions.- In a heald frame A, Fig. 1, of the type in which the lower heald loops c<1> serve as warp stopmotion detectors, the upper heald bar 13 is secured to spring-actuated rods 14 which pass through guides 15 on the side bars 2, so that the bar 13 is movable relatively to the side bars 2 and the lower heald bar 1. The rods 14 are connected at their lower ends by a bar 16, and the bar 13 is normally pressed upwards by the springs 21, thus keeping the healds C taut. The bar 16 and a bar 6, connecting the lower ends of the side bars 2, are connected by rods 1 to pivoted levers 18, 8, which are rocked by cams on the tappet-shaft. The shapes of the cams are such that the upper and lower bars 13, 1 are moved downwards in unison, and then caused to dwell. A further downward movement is then given to the bar 13 against the action of the springs 21, to allow the heald loop c' of a broken or slack warp to drop into engagement with a reciprocating toothed bar 22, the other heald loops being held up by the tension of the warps. Similar cams are used to actuate the back heald frame B, and the frames A, B are caused to be moved in unison by means of straps 3, 3<a>, which are connected to pulleys 4 on a rock-shaft 5. This arrangement of shedding-mechanism prevents the warps from being unduly strained, and allows the loom to be driven at the highest speed without increasing the liability of breaking the warps. The toothed bar 22 is connected to rocking arms 23, 24, Fig. 3, and the arm 24 is rocked by means of a cam 26, a lever 27, and a link 28. A spring 30 causes the nose 29 of the lever 27 to be held normally against the cam 26. As the bar 22 reciprocates, a finger 31 on the rock-shaft 25 of the arm 23 raises and lowers a detent block 32 in a slot in a slide-plate 33. A lever 37, pivoted at 38, is rocked by a roller 39 on the brake wheel 40 against the action of a spring 41, so that a sliding pawl 36 connected to the lever 37 is moved over the surface of the plate 33, the block 32 normally being lowered when the pawl moves over the plate. When a heald loop falls, it stops the spring-actuated movement of the bar 22, and the detent block 32 is not lowered and is struck by the pawl 36. The plate 33 is thereby moved, and acts through suitable mechanism to shift the driving-belt from the fast to the loose pulley. Loom brake mechanism ; stopping and starting mechanism.-The slide-plate 33 is connected to a pivoted brake lever 54, which is moved by the plate to press a brake shoe 53 against the brake wheel 40. The side plate may ba moved by hand, to stop and start the loom, by means of a rod 51 and a hand lever 52.