Patent GB-190921515-A (GB)
Title: Improvements in or appertaining to Filling Replenishing Mechanism for Automatic Looms.
Inventor: HOLLINGWORTH EDWARD
IPC: D03D45/20
Filed: 1909-09-21
Granted: 1910-07-28
Abstract: 21,515. Hollingworth, E., [Crompton & Knowles Loom Works]. Sept. 21. Shuttles, changing bobbins and the like in, automatically.-In looms provided with a single shuttle box 62, Fig. 1, at one end of the lay, each time a shaft 33 is rocked by the weft-fork mechanism, this shuttle box is raised, and a bobbin magazine 14, 16, Figs. 1, 6, and 9, is rotated, a bobbin thus positioned therein engaging the shuttle 63 in the raised box 62, forcing out the exhausted bobbin therefrom, and taking the place of this bobbin in the shuttle box. The bobbin heads and tips are respectively supported by spring blades 16 connected to radial arms 14<3> of a disk 14 fast to a rotary sleeve 13, and by spring blades 18 adjustably connected to arms 17, which are adjustably screwed to outward extensions 14<a> of the arm 14<3>, the spring blades 16, 18 having lateral conical projections extending into the ends of the bobbin heads and tips, and the spring blades 18 being provided with extended notched ends 18<2> for engaging the weft ends 15<a>. When the shuttle box is raised so that one of the bobbins extends into the shuttle and is retained therein, the weft is carried by the notched end of the blade 18 down into the shuttle, which is thereby properly threaded. The weft ends 15<a> pass through recesses in radial arms of a thread-guide 32 secured to the sleeve 13, and over a stationary thread-guide ring 12, the ends being secured to a knob 31 on a shaft 30, which is rotated at the same speed as the magazine by spurgearing driven from internal teeth on a disk 23 secured to the sleeve 13. The disk 23 has a notched periphery engaged by a roll on a spring- actuated lever, which forms a locking-device for the disk and the sleeve 13. A disk 19 provided with recesses 19<2> is secured to the sleeve 13, and the hub thereof carries a loose ring disk 21 having cam-shaped projections 21<2> extending into the recesses 19<2>, a spring 22 connecting the two disks so as normally to force the projections 21<2> against the sides of the recesses 19<2>. When the shaft 33 is rocked, it actuates lever mechanism 39, 40, 41, the yoke-shaped lever 41 thereof moving a sliding starting-tooth 44 into engagement with a mutilated gear 45 fast on the bottom shaft. Rotation of a mutilated pinion 46 and an eccentric connected thereto is thus caused, the eccentric being normally locked in inoperative position by a spring-actuated lever having projections 50<1>, which engage the recessed part of a cam connected to the eccentric. Actuation of the eccentric causes the operation of an arm 48<1> and lever 53 provided with a pin 57, which is yieldingly embraced by the spring-connected jaws 55 of a give-way device. These jaws are pivoted on the box-lifter rod 59 carrying a yoke-shaped frame 61 and the shuttle box 62, which is thus raised and is guided by projections extending into guideways in the shuttle-box frame. The boss of a rod 66 is mounted on a pin mounted between two ears 62<1> on the shuttle box, the rod 66 extending into a sleeve 67 which extends into a sleeve 68 pivoted on a stud on the stand 9. When the shuttle box is raised, a side pin 66<2> on the rod 66 enters a recess 19<2> on the star-wheel 19 and engages the side thereof, and thus turns the star-wheel and the switch cam-ring 21 through a certain distance, and also turns the wheel and magazine backwards to conform with the backward movement of the lay, and maintain the bobbin in position over the shuttle box as the lay moves back. The continued movement of the lay detaches the bobbin from the magazine. When the shuttle box is moved down, the pin 66<2> passes over and moves down on the other side of the cam 21<2>, thereby giving an additional movement to the magazine to position the next bobbin into proper position, and then finally passing out of the recess. Picking-motions.-When the rod 59 is raised, a cam-shaped finger 71 thereon engages an extension on a hook-shaped arm pivoted on the picking-arm, which is loose on the picking-shaft 8, thereby disengaging the hook-shaped arm from a downward extension fast to the picking- shaft and stopping the picking-motion. The hook-shaped arm and the downward extension are normally kept in engagement by means of a spring. A stop or projection on the picking- arm limits the pivotal movement thereof on the picking-shaft.