Patent GB-190919225-A (GB)
Title: Improvements in Automatic Weft Replenishing Looms.
Inventor: HOLLINGWORTH EDWARD
IPC: D03D45/20
Filed: 1909-08-21
Granted: 1910-08-18
Abstract: 19,225. Hollingworth, E., [Crompton & Knowles Loom Works]. Aug. 21. Weft-replenishing mechanism; weft, cutting. -In looms provided with a magazine having several compartments for. bobbins of different colours &c., corresponding in number to the shuttle boxes at the other side of the loom, a feeler 15, 19, 32; &c., Figs. 2 and 3, is used in connexion with the single shuttle box at the magazine side of the loom. When this feeler indicates substantial exhaustion of the weft, the support 9 for the compartment containing the corresponding bobbins is rocked from the position shown in full lines to that shown in dotted lines at the left of the magazine, Fig. 3. The shuttle is then picked to the opposite side of the loom, and when this particular shuttle is again pushed into the single shuttle box, the support 9 .is rocked back again to the position shown in full lines, thus releasing a bobbin into the discharge opening 8<2>, whence it is transferred to the shuttle, as described below. On the beat-up, the weft feeler 15, which is slotted and is moved outwards by connexion with a blade 18 pivoted to a lever, 19 acted upon by a spring 21, enters a slot in the shuttle and engages the weft. The feeler is thus pressed backwards, and the lever 19 is rocked, so that the bevelled or. pointed end 19<2> thereof remains out of the,path of a lever 32, which is rocked about a stud 33 by lever mechanism and a cam, the stud 33 being normally drawn to the end of a slot 14<3> by a spring 34. When the weft is substantially exhausted, the part 19<2> remains in position to engage the notched or shouldered projection 32<1> of the lever 32, which is thereupon rocked about this point as a pivot, the stud 33 being moved in the slot 14<3> against the, action of the spring. By means of a curved arm 35, an angle lever 37, Figs. 2, 5, and 8, is rocked, a link 40 is raised, and a lever 42 is rocked with a rod or shaft 43, which can rock and also move longitudinally. A second similarly-movable rod 44 is mounted above the rod 43, and' a slotted bracket 48, which embraces collars fast to the rods 43, 44, is actuated by the side extension of a lever 51 adjustably connected with the drop boxes, both rods 43, 44 being thereby moved longitudinally, so that fingers or levers 54, 55 thereon may be in position to engage the extension 56' of a particular one of four, vertically-moving bars 56, which correspond to the four compartments of the magazine, the particular extension which the fingers are in position to engage corresponding to the shuttle in line with the raceway and also corresponding to the compartment carrying bobbins of the corresponding colour or character. The sliding rods 56 are provided with swivel pins 9<1>, through which fit pins connected to extensions 9<2> of the rocking supports 9. Helically coiled springs 9<a>, which bear against the swivel pins and the extensions 9<2>, yieldingly lock or hold the supports 9 in their two positions. The fingers 54, 55 are provided with side extensions 54<1>, 55<1>, the extension 54<1> being engaged by a notch or recess in the lever 42, whereby the rod 43 and fingers 54 are rocked by the feeler-mechanism, and one of the two fingers 54 acts upon and raises the corresponding sliding rod, the corresponding support 9 being rocked. The fingers 55 and the shaft 44 are rocked by a lever 45 and connector 47 operated from a cam on the low shaft, so that when next the exhausted shuttle comes into action, one of the fingers 55 depresses the raised bar 56, thus returning the support 9 to its normal position. When a bar 56 is raised, a weighted latch 57, pivoted thereon, is moved by its weighted end into a raised position, and when the bar 56 is subsequently depressed, the latch 57 engages a transverse bar 58 and rocks a shaft 59, a lever actuated therefrom then moving the dagger of the transferrer into position to be engaged by the lay bunter, whereby the transferrer is operated to feed the bobbin into the shuttle, the transferrer also returning the parts to their normal position. The shaft 59 is acted upon by a spring lock 60,- 62<1>, which yieldingly locks it in its two positions. An arm 68 on the shaft 59 raises a slotted bar 69, which acts on a pin 70<1> on an angle lever 70 linked to a lever 73<1>, this lever being thereby moved into the position shown in dotted lines in Fig. 8, whereupon it is brought into line with the actuating-rod 75 of the mechanism for cutting the thread from the ejected bobbin. A spring-actuated pin 76 enters one of two openings or recesses 73<2> in the lever 73 and thereby holds it in either of its two positions. When the bar 69 is raised, a cam part 69<2> thereon acts on a pin 77<2> on the hook part 77<1> of a lever 77 pivoted on the camactuated connector 47, the hook being thereby disengaged from the pin 70'. When the bar 69 moves down again, a spring 78 moves the hooked lever 77 into engagement with the pin 70<1>, and when the connector 47 moves down, it returns the thread-cutting mechanism into inoperative position.