Patent GB-190327907-A (GB)
Title: Improvements in and Connected with Means for Automatically Replacing Shuttles in Looms.
Inventor: MIRE JEAN BAPTISTE AMAND NOEL
Filed: 1903-12-19
Granted: 1904-09-15
Abstract: 27,907. Le Mire, J. B. A. N. H. Dec. 19. Loom shuttle - changing mechanism; shuttle boxes; shuttles; swells; stopmotions. -The shuttlechanging mechanism comprises a four - cell rotary shuttle box m, which receives a quarter turn when the weft fails by mechanism brought into action by the weft fork, a full shuttle being introduced into an empty cell at the next beat-up. A hooked lever f, Fig. 1, passes through a slot in a lever c which is vibrated by a cam d on the shaft a. When the weft fails, the weft fork g<x> acts through rods and levers g, h, i, j to cause the hook f<x> to be engaged and raised by the lever c, so that, through a reversing-lever k, a hook l is drawn downward and causes the rotary box m to make a quarter turn. By means of a spring o<x>, adjustable rod o<1>, and a bell-crank lever and wire o', a hook n is drawn against a notched disc o on the end of the box, and, entering one of the notches 1, 2, 3, 4, stops the box in the proper position. The parts are returned to position by a spring p<x>, and the box m is held in position by means of a metal disc with four concave faces fixed to the shaft of the box, being engaged by the convex end of a spring-controlled rod. The empty shuttle drops out of the lowest cell, so that the front cell is empty, and a full shuttle from a magazine is introduced into this cell at the next beat-up by a plate pushed along a table w, Fig. 2, by fingers v which are actuated through a lever, rod t, and lever s by means of a notched rod r which is drawn into engagement with a lever q by a spring connected to the lever f. Before the lever f has finished its descent, the lever q is depressed by the cam d, and lowers the rod r. During the introduction of the full shuttle, a hammer 5 strikes a knocker-over 6, Fig. 4, either directly or through an intermediate piece, and the knocker-over 6 presses against the swell 8 of the lowest cell and the shuttle if therein falls out, but normally the shuttle falls out when the cell is reversed, the sudden stop caused by the hook n catching in one of the notches of the disc o facilitating the expulsion. A groove is made in each shuttle similar to, and on the opposite side from, the weft groove, and each swell is provided with a copper button to engage the groove and prevent the shuttle in the front cell from being thrown out when the lay beats up. Sheet-metal cheeks, with rounded edges, in the shuttle box, prevent longitudinal movement of the shuttle. To stop the loom if the magazine is exhausted or the shuttle is trapped, the swell 8 of the ordinary box acts on the usual finger 9, turning loosely on the stop-rod 10, and having a prolongation 9<x>. If the shuttle is absent, the part 9<x> strikes a pivoted tappet 12 on the spring handle 11, and when the shuttle is in the opposite box the tappet 12 is lowered by a finger 13, lever 14, and cam 15 on the cam shaft a in order that the loom may not be stopped. This arrangement is suitable for loose-reed looms, while for fast-reed looms, a feeler 15, Fig. 7, is placed behind the swell of the operating cell of the rotary box, and is connected with the usual stop-rod finger 16, so that the loom is stopped in the usual manner if the shuttle is in neither box.