US902286A - Loom for weaving short-weft fabrics. - Google Patents

Description

J. GARST.

LOOK FOR WEAVING SHORT WEFT FABRICS.

SHEET 1.

Patented Oct 27, 1908 2BHEBTS- JFu/emiva 75% fast [1 hr t APPLICATION FILED JAN. 25, 190B.

J. GARS T.

LOOM FOR WBAVING SHORT WEPT FABRICS. APPLICATION FILED 11111.25, 1908.

Patentedbct. 27, 1908.

' JkMc/aiwa' ala mat:

JULIUS GARST, OF WORCESTER, MASSACHUSETTS.

LOOK FOR WEAVING SHORT WEFT FABRICS.

Specification of Letters Patent.

serenade 27,1908.

Application filed January 26, 1908. Serial No. 412,588.

To all whom 'it may concern:

Be it known that I, JULIUs GARs'r, a citizen of the United States, residing at Worcester, in the county of Worcester and State of Massachusetts have invented a new and useful Loom for Weaving Short-Weft Fabrics, of WhlCh the following is a specification.-

This invention relates to looms, and while capable of use for several varieties thereof, it is particularly adapted to be applied to that class of looms which are employed for weaving fabrics from separate short weft lengths to produce straw-matting, grass and reed carpets, and the like. In this class of looms the shed is ordinarily set to be wider at the place where the weft threads or strands are to be introduced than thefabric. In order to accomplish this, the reeds or reed-dents have heretofore been made movable alon the lay so that they may be brought toward each other as the lay beats up.

The principal objects of the present invention are to provide improvements in the mounting an operation of the reed dents whereby said dents will be caused positively to move uniformly towards each other during the beating up of the lay. One feature of the invention, therefore, is the construction of mechanism whereby this result may be ac complished in a sim 1e and efficient manner.

Another object o the invention is to provide an improved form of guard for the reed dents whereby the same is simplified and cheapened as far as cost is concerned, and

whereby the reed-dents may be brought" closer together than would otherwise be the case. This is accomplished by stamping the guards out of sheet metal and folding them over so as to embrace the respective reeddents and placing the' folded parts in staggered relatlon with each other so that they will not interfere with the closing up of the reed dents.

Further objects and advantages of the invention will appear hereinafter.

Reference is to be had .to the accompanyin drawings, in which,

igure 1 is a sectional view taken transversely through the lay, of a short weftweaving loom showin one way in which the invention may be app 'ed' thereto. Fig. 2=is a horizontal sectiona view of the same parts above the frame showing the latter in plan. Fig. 3 is a perspective view showing one of the reed-dents, its guard, and the way in which the fabric is woven. Fig. 4 is a face viewof a blank for making oneof the ards. Fig. 5 is a side elevation of the guar made therefrom. Figs. 6 and'7 are similar views of the other'form of guard, and Fig. 8 isa view showing how the weft strand is crimped up in the manufacture of the goods.

The invention is illustrated as applied to a loom having the usual harnesses 10, heddles 1'1, breast-beam 12, warp-board 13, and lay 14, the latter having as usual a horizontal bar 15. The lay as usual is provided with a series of reed-dents 16, but mstead of being caused to move toward and from each other during the beatin of the laysimply by the pull of the war t eads, means is provided according to t 's invention for positively moving the reed-dents so as to cause them all to move uniformly inde endently of any variation in the tension of t e different warp threads. This means consists of guides for the reed-dents, these guides in the present instance being shown as mounted on a stationary frame 20 having a part 21 above the bar 15 and a part 22 below it.

rated from each other sufficiently to permit the reed-dents to slide between them, and constituting guides therefor. These guides are at a slight angle to each other, those in the center bein exactly transverse to the lay and gradua y converging toward each other on both sides ofthe center, as indicated most clearlyin Fig. 2. The reed dents are held on the lay at the top by fitting them against a shoulder 24 thereon and applying a plate 25 to the front of their upper ends. This leaves a recess in the top of the lay for the upper ends of these dents and they fit therein in such a way that they can slide therealong. The lower parts of the reed dents pass through the horizontal bar 15 and they are held up by a late 26 enterin a notch in each of the rec -dents. From't 's it will be seen that the reed-dents, are moved positively toward each other as the lay beats up, and conse uently there will be no irregularity in the istances which separate them when they engage the previously woven part of the fabric. This msures absolute uniformity in the product and gives greatly im roved results.

has been the custom heretofore, the breast-beam is provided with a dog 30 which engages a lever 31 on the breast-beam on each beat to o erate a series of guards 32 to liberate the we t strand a from the notches 33 In each of these parts is a series of guide-bars 23 sepa-v the cross bar. close together into contact and virtually conwith which the reed dents are provided. The

lever is operated through a guide bar 34 cutering notches 35 in the guards as will readily be understood. Each of these guards is referably made of a piece of sheet metal iaving two side members 36 and a cross-bar 37 or 38. These can be stamped out in a very sim le manner and then folded over as indicate in Figs. 5 and 7 to form a sheath in The side pieces 36 are folded stitute one element in the complete guard,

.but the cross-bars are folded over so as to cross bars or sheathes were all of the same height. This constitutes a very simple and inexpensive way of making these guards, and is an important feature of the invention.

Fig. 8 shows one of the weft strands as it is formed by this construction. It has angular indentations 4O alternately arranged on o osite sides for receiving the warp threads. hese are formed when the weft strand is in a moist condition, and by the contraction of the same onaccount of the movement of the reed-dents when all of them are in contact with the weft sufficient stock is gathered together to permit this shape to be formed. While I have illustrated and described a preferred form of the invention, I am aware that many modifications may be made therein by persons skilled in the art without deof a frame in fixed position and having converging guides, and reed dents movably mounted on said lay and guided in said frame.

2. In a loom for making short weft fabric, the combination with the lay, of a frame in fixed position and having guides converging toward the warp board, and reed dents movably mounted In said guides, whereby the reed dents are uniformly brought nearer together across the fabric as the lay beats up.

3. A loom having a lay, reed dents mounted on the lay, and movable longitudinally thereon, and meansfor positively and uniformly moving said reed dents on the lay, toward each other during the beat of the lay to assist in crimping the weft.

4. A loom having a lay, transverse guides, v

dent guides consisting of bars fixed to said frame and transversely placed with respect to the lay, and movable reed dents mounted in said guides.

6. In a loom the combination of a fixed frame having reed dent guides located transversely to the lay but at a slight angle to each other, reed dents in said guides, and a lay connected with said reed dents and having means for moving them along as the lay beats up, said reed dents being movable longitudinally to the lay.

7. In a loom the combination with the lay having a passage therethrough and reed dents extending through said passage, of a stationary frame having reed-dent guides above and below said passage for said reed dents.

8. In a loom the combination with the lay havin a horizontal bar provided with a assage tierethrough, and reed dents exten ing through said passage, of a stationar frame having reed-dent guides above and be ow said passage for said reed dents, said guides converging toward the warp board, the reed dent being movable along the lay by said guide as the lay beats.

9. In a'loom the combination with a lay, having a plate removably fixed at the top thereof an spaced from the rear surface of the lay, reed dents passing into said s ace and movable therein and extending tirough a horizontal part of the lay below, and reed dent guides engaging the top and bottom of said reed dents.

10. In a loom the combination with the lay, of movable reed dents thereon having notches therein and guards movable on the reed dents for covering said notches each of said guards comprising a sheet metal plate doubled upon itself.

11. The combination of a reed dent having a notch and a guard movably mounted thereon and consisting of a sin le piece of sheet metal doubled u on itself and providing a sheath at the fo (1 for receiving said reed dent.

12. In a loom the combination with a series of reed dents, of a series of guards therefor each guard having a sheath for receiving its reed dent, said sheaths being alternately arranged at two elevations.

13. A guard for a reed dent consisting of single-piece of sheet metal having two vertical pieces at the sides and a cross bar for connecting said vertical pieces folded through at the center of the cross piece on a lineparallel with said vertical pieces.

14. A guard for a reed dent consisting of a single piece of sheet metal having two side pieces at the sides and a cross bar connecting i In testimony whereof I have hereunto set said side pieces through the center of the my hand, in-the presence of two subscribing cross piece ona central line parallel with said witnesses.

side pieces, said side pieces being brought JULIUS GARST. 5 into contact but the cross bar being folde so Witnesses:

as to' leave a passage therethrough for the LOUIS W. SOUTHGATE,

reed dent. O. FORREST WESSON.

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