Patent GB-190302709-A (GB)
Title: Improvements in Automatically Replenishing Weft in Looms for Weaving
Inventor: DUCKWORTH JOHN
Filed: 1903-02-05
Granted: 1904-02-05
Abstract: 2709. Duckworth, J., Eddleston, J., and Whalley, C. Feb. 5. Loom shuttles, changing bobbins and the like in, automatically; stop-motions. - Mechanism which may be fitted to existing looms is so arranged that when the weft fails, a shuttle peg -with a full cop is substituted for the peg which held the used cop in the shuttle. The shuttle pegs e are formed with two rings e<x>, so that they may be placed in a slot c' formed in an L-shaped plate c constituting a magazine. The plate c is pivoted at its upper end to a bracket b fixed to the breast beam a, and its lower end projects towards the lay x. When the magazine is at rest, the lower end of the vertical slot c<1> is closed by a projection d, supported in a bracket d<x> fixed to the breast beam, and the pegs in the vertical slot rest on the projection d. The ends of the threads from the cops in the magazine are passed round a rod j, and wound spirally on a rod l. When the weft fails, a catch m on the upper end of a lever p is acted upon by the weft-fork lever k, so that a rod g is partially rotated. A lever h at the other end of the rod g is caused to engage with a pivoted lever u, and thereby release a stud on the magazine, which is then caused to swing towards the lay by the action of a spring t<1>, as far as is permitted by a projection u<1> on the lever u, as shown in Fig. 6. The lowest peg in the vertical slot will then fall into the horizontal part of the slot. As the lay moves forward, a projection u<x>, pivotally secured to it, will strike a stop c<6> attached to the magazine, and push the magazine back to its normal position, so that the peg and cop at the open end of the horizontal slot will be forced out against the action of a retaining spring c<5>, since the projection d remains fixed. The ejected peg and cop are pressed into the shuttle f, which is then under the open end of the magazine slot, and replace the empty peg which falls through an aperture y in the shuttlerace into a receptacle placed beneath. The pegs are held in the shuttle by two springs f<x>, Fig. 5, which grip the rings e<x> of the shuttle pegs. The thread passes through a diagonal slit f to the eye f<2>. The mechanism may be rendered inoperative by turning over the catch m, so that it will not be engaged by the weft-fork lever. When the rod g is partially rotated, a lever q, fixed to it, pulls aside the projection u<x>, which is pivoted at r, by means of a strap v. If the shuttle enters the box properly, it tightens the check strap f<3>, and an enlargement on the strap engages with a staple u<3>, fixed to the projection u<x>, and moves the projection u<x> back to a vertical position. But, if the shuttle does not enter the box properly, the projection u<x> remains drawn to one side, and strikes the bent end d<4> of a rod d<3>, which passes through a hole in the bracket d<x>, and presses back the lever h farther than when the stud s is released so that, through the rod g and lever p, the fork lever k will be moved sufficiently far to release the loom handle k<1> and stop the loom. At the same time, the rod d<3> passes under a spring d' and raises it out of a groove cut in the spindle d<1> of the projection d, and allows the spindle to move back in the bracket d<X>, thereby preventing the leading peg from being pushed out of the magazine. The rods d<3> and projection d are replaced by hand. Loom shuttle-changing mechanism.-In the Pro, visional Specification it is stated that, in like manner, shuttles with cops therein may be automatically replaced.