Patent GB-190921513-A (GB)
Title: Improvements in or connected with the Filling Transferring Mechanism of Automatic Weft Replenishing Looms.
Inventor: HOLLINGWORTH EDWARD
IPC: D03D45/20
Filed: 1909-09-21
Granted: 1910-09-21
Abstract: 21,513. Hollingworth, E., [Crompton & Knowles Loom Works]. Sept. 21. Shuttles, changing bobbins and the like in, automatically.-The weft-replenishing mechanism is operated by centre weft-fork mechanism, and the loom is stopped if the shuttle is not properly threaded and the weft-fork mechanism is operated twice in immediate succession. When the centre fork 48, Fig. 2, mounted on a stud 49 and linked to a lever 51, is allowed to fall owing to weft-failure, the lever 51 engages the cam part of a crank-lever 52, thus rocking this lever and also a spring-actuated lever 57, Fig. 8, connected thereto and provided with a cam part 57<2>, which normally engages and raises an extension 39<1> of a bunter 39 pivoted to a main slide 31. The hunter is thus allowed to fall into the path of, and is engaged by, a camoperated lever 40, a dagger 34 on the slide 31 then engaging a lever 61, Figs. 6 and 8, connected through a give-way device to a looped wire embracing a vertically extending camoperated rod 25, the upper end of which is thus moved under, and operates, an arm 24 on a rod. or shaft 12. An arm 21 on the shaft operates one of several spring-pressed spindles connected to the bobbin-supporting rocking cradles of the several compartments of the magazine, a bobbin being thus released from one compartment, and the rod 12 being moved longitudinally by connexions from the drop-box mechanism, to determine from which compartment the bobbin shall be released. A collar 64 on the rod 25 is moved under and operates an arm connected to a lever 68, provided with a hook engaging an arm 70' on the transferrer dagger 70, which is thereupon moved by a spring into the path of the lay bunter. A pin 72 on the arm of the transferrer operates the rearwardly-extending end 73<1> of one arm of a lever, the other arm 73<3> of which then raises a bunter 47 pivoted to a slide 45, which rests upon and can be moved with or independently of the slide 31. The bunter 47 is therefore raised out of the path of the camoperated lever 40, and a side extension 47<2> on the bunter engages an undercut recess of the bunter 39, so that this bunter is also raised from the lever 40 during the weft-replenishment. The slide 31 carries forwards the slide 45 with it during its backward movement, but a side extension 45<2> of a downward extension of the slide 45, which normally engages beneath and raises the dagger 34, comes into contact with a stop 32<1>, so that the slide 31 continues its movement while the slide 45 is stopped, and the dagger 34 moves off the extension 45<2>, When the slide 31 is returned by spring action with the slide 45, the dagger 34 takes up an inclined position. If the shuttle is properly threaded and the centre fork is consequently prevented from falling, the bunter 39 is raised out of the path of the lever 40, but the bunter 37 remains in its path, so that the slide 45 only is operated and the projection 45<2> moves underneath and raises the dagger 34 into the path of the lever 61. If, however, the shuttle is not properly threaded, and the centre fork is consequently prevented from falling, both bunters 47, 39 are operated by the lever 40, and the dagger 34, which is in its depressed position, operates a knock-off lever 35, and the loom is stopped. A lever 75, Figs. 2 and 3, mounted on a stud 76 has an extension 75<2> normally engaged by a spring-controlled pawl or latch 77. A rod &c. 79 may be operated by the weaver to move the pawl &c. from the extension 75<2>, and thus allow the lever 75 to drop into engagement with and move downwards the dagger 51, to prevent it from engaging the crank-lever 52, when, for example, the loom has been stopped by hand to find mispicks and it is desired to prevent the replenishing-mechanism from being operated.