Weft-carrier magazine

Abstract

Claims

May 27 1924. E. H. RYON WEFT CARRIER MAGAZINE 1921 I 2 She ts piledJu May 27 1924. E. H. RYoN WEFT CARRIER MAGAZINE Filed July 18. 1921 2 Sheets-Sheet 2 Patented May Z7, 1924. , narran stares lAralar oFFlcE. EPIPA Il. RYON, OF WALTHAM, MASSACHUSETTS, ASSIGNOR TO CROIVIPTON & KNOWLES LOOM WORKS, OF WORCESTER, MASSACHUSETTS, A CORPORATION OF 'MASSA# CHUSIETTS. HEFT-'CARRIER f MAGAZINE. Application led truly 18, 1921. Serial No.'485,4120. To all whom t may concern: Be it known that I, Erre. H. RYoN, a citi- `zen of the United States, residing atWaltham, in the county of Middlesex and State of Massachusetts, have invented a new and useful Weft=Carrier Magazine, ofy which the following is a speciiication. This invention relates to certain improvements in weft carrier magazines as applied to' weft replenishing looms, and hasl for its object Vthe provision of a magazine vof sim* pliiied construction and very reliable operation. With Vthis general object in view, one feature of my invention relates to changes and improvements in the slides by which the weft carriersor bobbins are supported. A second feature relates to certain improved thread guiding devices which effectively prevent the tangling of threads from dierent rows or stacks of weft carriers. weft carrierreleasing device, to an easily detachable connection for holding the supporting slides in position, and to certain arrangements and combinations of parts which will be hereinafterV described and more particularly pointed vout in the appended claims. A preferred form ofl my invention is shown in the drawings in which- Fig.' 1 is a side elevation of a magazine embodying my improvements; Fig. 2 is a partial rear elevation looking inthe direction of the arrow 2 in Fig. 1; Fig. 3 is a partial sectional plan view taken along the line 3 3 in Fig. 1; Fig.V f1 is a sectional rear elevation taken along the line 4-11 inFig. 1; Y Fig. 5 is a plan view of a pair of weft carrier supporting slides; Fig. 6 is a side elevation thereof; Fig. 7 is a detail viewof the means for securing the slide fasteners, and Fig. 8 is a partial view of a modified form of slide. Referring to the drawings, I have shown parts of a magazine comprising an end frame 10 connected to a second endframe Other features relate to an improved 11 (Fig. 4) by .cross rods12, 12al and 13 (Fig. 2). Vertically extending flanges 14 on the frames 10 and 11 form separate vertical passages or compartments in which stacks or rows of weft carriers may beassembled. v v The lowermost weft carrier of each stack rests upon a support comprising two oppositely Vmovable slides 15 andV 16. Each slide is provided with lateral projections 17 and 18, These projections -are secured to the lower edge of the slide 16 and to the upper edge of the slide 15 asclearlyshown in Fig. '6J Each slide. yis provided with a cam slot 19 through which Vextendsv a stud 2() secured in the slotted lower end of an actuating rod 21. The stud 20 is Aconvieniently held ink position by the'spring clip 22 shown in side elevation in Fig. 7 n These slides, as thus far described, are similar to those shown in my prior-Patent No. 1,005,321, issued October 10,'1911, but contain certain improved features of construction which I will now describe.4 The inner end Vof the slide 16 is bent backward upon itself to the position shown in lFig.5, thusprovidinga thickened end adapted to closely engagethe small end of the weft carrier` W as shown in Fig. 3. This construction permits the body of the slide to be left straight, as shown in Fig. 5, and also provides a widened bearing surface for the slide.V Y Y The projections-18 on theslides are each provided` with a beveled edge 23rwh-ich is found to be of particular advantage in the operation ofthe mechanism, as the beveled edge has a cam action on the rings of the weft carrier and avoids'the abrupt engagement of lthe ring experienced with they vice avoids a direct or abrupt engagement of the weft carrier. The operation of my improved slides is otherwise similar to that found in my prior patent and it is sufficient to state that the actuator v52,1 is vertically reciprocate'd when a weftcarrier transfer is indicated. Upon the upward stroke the upper projections 17 and y18 are oppoisitely withdrawn to permit the descentvof the weft carrier supported thereon while the lower projections 17 and 18 are simultaneously advanced to prevent immediate escape of the released weft carrier. As the actuator 21 thereafter descends, the upper projections move inward to normal position and the lower projectionsl release the weft carrier supported thereon. ` rlhe frame 10 is provided with vertically extending slots 30 between each two rows or stacks of weft carriers and the ends of the threads kon the weft carriers are drawn out through these slots to a thread holder not shown. ln the operation ofthe loom the weft carriers in one stack areoften used much more rapidly than the carriers in'an adj acent'staclr and under these circumstances the threadsbecome badly entangled as one stack moves downward relatively to the other. To preventsuch entanglement I have provided verticallydisposed guide rods 31 and 32. These .rods are vsecured at their upper ends to the frame V10 and extend downward outside and adjacent ythe slots 30, theirl lower ends being free to permit the downward pass-age of the threads. In filling the magazine the threads from the outer stack are drawn outward around theouter face of the corresponding guide rod31 and the threads from the inner stack are drawn past the inner face. The threads are thus suiiiciently separated so that entanglement thereof does not occur. Referring to Figs. 1 and 2, I have shown improved devices for yieldingly supporting the tips of the'bobbins or weft carriers. These devices comprise guide 'members 33 each mounted on parallel links 34 and 35. The links 34C are pivoted at 36 on the frame 10 and the links 35 are loosely mounted on cross rods 13. Coil springs 37 encircle the rod 13, one end of the spring being secured in the hub of a link 35 and the other being secured in a collar 38 by which the tension of the spring may be adjusted. An adjusting screw 39 in the link 34 acts as a stop for the weft carrier support by engagement with a shoulder 40 on the frame 10. The two supports 33 are similarly constructed and are mounted to be moved apart as a weft carrier is forced downward by the transferrer 4:1. Either of them may also be forced further back to the dotted line position shown in Fig. 1 if a weft carrier meagre fails to be properly transferred and is caught by the shuttle when only partially inserted. The parallel links cause the guide plates 33 to maintain their original angular relation as they are separated. My improved y bobbin support is not claimed herein but forms the subject matter of a divisional application Serial No. 709,410, med april 2s, i924.. Having thus described my invention and the method of operation thereof, the advantages of my improvements will be readily apparent. It will be further evident that ychanges and modifications may be made in my invention within the spirit and scope thereof as set forth in the claims and l do not wish to be otherwise limited to the details herein disclosed but what l claim is 1. In a loom, a weft lcarrier magazine having downwardly extending guide ways for the weft carriers, a pair of slides Yeiiective to support the lowest weft carrier in each guide-way, and means to withdraw said slides in opposite directions to release said lowest weft carrier, said slides having projections to engage and support vthe weft carriers and certain of said projections having edges disposed at an oblique angle to the body of the slide. 2. ln a loom, a weft carrier magazine having downwardly extending guide-ways for the weft carriers, a pair of slides eifective to support the lowest weft carrier in each guide-way, and means to withdraw said slides in opposite directions to release and advance said weft carriers, said slides having projections to engage and support said weft carriers and certain of said projections each having a beveled side edge. 3. ln a loom, a weft carrier magazine having downwardly extending guide-ways for the weft carriers, a pair of slides effective to support the lowest weft carrier in each guide-way, and means to withdraw said slides inopposite directions to release said lowest weft carrier, said slides being disposed in pairs and one slide in each pair having an end formed with a return bend to provide additional thickness thereof. a. In a magazine, a plurality of vertical weft carrier compartments disposed in pairs, said magazine havinga slot for the filling threads between each two compartments and a separate guide rod for dividing the threads a straight vertical rod effective to separate i the threads in each slot oming from each two groups of weft carriers, said rods being supported at their upper ends only and heing substantially parallel to said slots and 5 closely adjacent thereto. 6. In a magazine, weft carrier supporting slides, studs extending through slots in said slides, and segmental spring clips engaging the ends of said studs to prevent displacement thereof. In testimony whereof I have hereunto affixed my signature. EPPA H. RYON.

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Cited By (2)

    Publication numberPublication dateAssigneeTitle
    US-2447291-AAugust 17, 1948Crompton & Knowles Loom WorksThread separator for weft replenishing looms
    US-3170492-AFebruary 23, 1965Picanol JaimeMechanism for pirn magazines in weaving looms