US955211A - Power-loom for weaving textile fabrics. - Google Patents

Description

`L. E. SALISBURY.. POWER LOOM EOE WEAVING TEXTILE FABRICS.

AIPLIUATION PILE-D NOV. 6,`1907.

Patented; Apr. 19, 1910.

2 SHEETS-SHEET 1.

L. E.. SALISBURY.

v POWER LOOM FOB. WEAVING TEXTILE FABRICS. v APPLICATION FILED Nov. s, 1907.

1., Patented Apr. 19,19l0.

2 SHEETS-SHEET 2.

/NVEN TDR,

5 a 5b uw YS.

ANnnEw l1 GRAHAM co Pno'mumnamwsm wnsmumow n n UNITE STAES ATENT OFFICE.

LEVI E. SALISBURY, OF PROVIDENCE, RHODE ISLAND.

POWER-LOOM FOR INEAVING TEXTILE FABRICS.

To all whom it may concern.

Be it known that I, LEVI E. SALIsBURY, a citizen 0f the United States of America, and a resident of Providence, in the county of Providence and State of Rhode Island, have invented certain new and useful Improvements in Power-Looms for leaving TeX- tile Fabrics, of which the following is a specification.

My present invention relates to improvements in looms for weaving textile fabrics.

I/Vhile the invention forming the subject of this application for patent may be employed in any loom in which the harnesses and reeds are divided transversely into independent sections actuated in a predetermined order or succession, the invention is more particularly adapted to looms in which non-reciprocating shuttles are arranged to follow one another at regular intervals in a continuous manner, each shuttle being automatically charged with a length of weftyarn to produce one pick which it delivers between the warp-yarns, the latter being properly shed immediately in advance of and in unison with the traveling shuttle; at

' the same time the reed sections are being successively actuated at the rear of the shuttle to beat up the thus delivered weftyarn into the fabric.

In my U. S. Patent No. 720,181 is illustrated and described an automatic multipleshuttle loom embodying the above named features and adapted to produce woven textile fabrics in the manner indicated.

In looms as usually devised, wherein the reed is mounted in a single swinging lathe or lay which extends entirely across the loom, a large percentage of the power for driving the loom is required to oscillate the lathe in beating up the weft or filling yarn. In looms having the reed divided transversely into sections which are actuated in a successive manner the percentage of power for actuating the reed is or may be materially reduced. In some cases, however, it is a difiicult matter to properly adjust the reed sections and the means for operating them so as to impart a uniform degree of force or pressure upon the pick throughout its length, being the width of the cloth, the re- Speciication of Letters Patent.

Application filed. November 6, 1907.

Patented Apr. 19, 1910.

Serial No. 400,922.

sult bein@ the production of goods having more or Iess imperfections therein.

The object I have in view in my present f invention is to provide continuous multipleshuttle or positive motion shuttle looms with a novel manner of and means for beating up each weft-yarn or pick concurrently with its delivery from the rear end of the shuttle; or in other words the pick is acted upon by the reed while the shuttle is stillbeing propelled through the shedded warp-yarns.

To this end the invention consists, essentially, in segregating, supporting and guiding the several dents composing the reed, combined with means for positively swinging the dents one after another in a successive manner forth and back from the normal position to engage the weft-yarn as in beating it up.

It also consists in constructing the dentactuating mechanism so that the act of engaging the unbeaten pick and pressing it laterally into the fabric is not accomplished instantly by one dent alone but by a plurality or continuously changing series of the dents, the latter when advanced having the working face of said series arranged to form a continuously produced angle with respect to the last laid and Vbeaten up pick so that the weft-yarn then being acted upon by the dents is gradually forced home into the fabric concurrently with the delivery of said yarn from the shuttle. At regular intervals across the loom Some of the dents comprising the reed are further constructed so as to form a combined support and guide for the traveling shuttles, said guides being in alinement when the dents are in the normal rearward position. When the loom is in operation the action of the mechanism causes the dents of the reed to present a wave-like movement, one wave following another uniformly across the loom, a shuttle being disposed between the waves and travcling in unison with them.

In the two accompanying sheets of drawings, Figure l represents a plan View of a multiple-shuttle loom embodying my present invention, many of the parts not deemed essential herewith being omitted. Fig. 2 is a transverse sectional view, enlarged, taken substantially on line 2 2 of Fig. 1. Fig. 3 is a plan view, still further enlarged, showing a portion of the shuttle and cam-carrying chain, and also showing a part of the chain-supporting frame. Fig. 4L is a trans` verse section, taken on line 4 a of Fig. 3, and also showing the relation of the dentsupporting rod or shaft to the chain. Fig. 5 is a longitudinal sectional view, taken on the irregular line 5 5 of Fig. il. Fig. (5 is an inverted plan view showing a portion of the chain-supporting frame. Fig. 7 is a side elevation of one of the reed dents loosely supported on said rod or shaft, the dents being in the retracted or normal position. Fig. S is a corresponding front or edge view showing a plurality of the dents. Fig. 9 is a side view, similar to Fig. T, showing a dent adapted to receive a shuttle, the latter being indicated by dotted lines. Fig. l0 is a corresponding front view of the same,

. and Fig. ll is a plan view representing in a somewhat exaggerated manner a portion of the woven fabric and the relation of the dents to the last delivered weft-yarn while the latter is being acted upon by the reed, the line of section being taken substantially at and parallel with the upper surface of the fabric.

The general construction and manner of operation of the loom, portions of which are represented in the drawings herewith, are set forth in my said patented loom and to which reference may be had for a more detailed description.

ln the annexed drawings A designates a part of the loom frame, 'w the warp-yarns, l) the harnesses divided transversely into short lengths or sub-sections, ll a horizontal chain-guide or track secured to the breastbeam Z3 and disposed between the latter and the harnesses, and l a continuous or endless chain for carrying the self-threading shuttles J and the reed-actuating means; the reed-moving links alternate with the shuttle-carrying links.

'ihe present invention resides more especially, as before stated, in the novel reed, its action and means for effecting the same. The reed, as a whole, is indicated by R, and consists of the laterally separated individual members or dents a arranged and supported on a lixed rod or shaft g located below the chain-guide H. rFhe dents t are cut or punched from suitable thin sheet-metal stock, as steel. Each dent extends upwardly through the upper and lower warps tu (see Figs. 2 and 7), the front edge of the free end of the members a being cut at an angle or otherwise adapted to present a substantially perpendicular working face, as a3, to the transverse edge of the fabric .e when they are advanced, as in beating up the weft. To one side of each of the members a is riveted or otherwise secured a shorter sheet-metal member al. The said two parts, e al, constitute a dent proper; these are assembled closely in a successive manner on the shaft g, the upper portions being separated laterally by spaces a each alining with and equal in thickness to that of a member al, as indicated in Fig. 8. As thus devised and arranged the dents of the reed lt are independently movable, the upper ends being unsupported and adapted to freely receive therebetween in the respective spaces s one or more of the warps to.

The means, as drawn, for actuating and controlling the movements of the members of the reed are as follows: The several links of the chain l are ointed at and are provided with a continuous cam-groove or track m. The groove portion in each alternate link, however, is deflected at an angle toward the frontof the loom, see m1, Fig. 3, thence it extends a short distance at a slight angle, mi, into a straight part, m3, and is deflected rearwardly therefrom into a part, mi, terminating in part m, the latter being in alinement with the corresponding portion formed in the front or advance end of the link. T he drawing represents the camcarrying members of the links as being secured to thin top plates t', the ends o of the links abutting when moving in a straight course. rl`he upper end of said member al of each dent is enlarged, see a2, and extends into the cam-groove, at the same time contacting with the adjacent sides thereof.

ln order to allow the members al of the dents to pass upwardly through the underside of the chain-guide H the latter has an opening, n, therethrough extending the length of the reed, its width permitting free axial movement of the members from the normal to the working or beating up position. rlhe members al may be laterally guided by means of correspondingly spaced short interposed light metal bars f' having their ends suitably mounted in the two parallel strips e removably secured to the underside of frame H. See Figs. el, 5 and 6. In this arrangement the members al of the dents may be readily introduced in the respective spaces f1 separating the bars. See Fig. 5. lf desired thin cap plates c1 may be secured to said strips e and overlap the ends of the bars, thus locking the latter in place. rlhis construction readily permits the substitution of reeds having coarser or ner dents as the case may be, at the same time of course changing the bar-carrying strips e for others corresponding with the reed thus selected.

The operation of the loom, or rather that of the parts illustrated in the drawings, may be described as follows: The alternate links of the continuously traveling chain I, carrying the weft-holding shuttles J, deliver the weft or pick yarn w1 successively between the upper and lower series of suitably shedded warps w; the cams carried by the intermediate links of the chain at the same time causing the dents of the reed R to beat up the weft into the web e. The dents adjacent each shuttle support the latter and are maintained temporarily stationary in the rearward or normal alining position, said alinement being formed concurrently and in unison with the shuttles forward movement. yAs soon as the shuttle commences to place its yarn w1 between the warps the next succeeding short sections of the harnesses P are shed so as to inclose said yarn, the forward portion, m1, of the cam groove of the link immediately following the shuttle next causes the dents to successively advance axially and engage said yarn Vand gradually press it home into the web being woven, the cam part m4 acting to return the dents to the normal alining position again in advance of the next succeeding shuttle. This novel feature is illustrated somewhat diagrammatically and in enlarged scale in Fig. 11. Assuming the chain to be moving toward the right, the advance or unacted upon portion of the weft-yarn, marked wf, then being delivered by the corresponding shuttle (not shown), is successively engaged by the deiected dents a, see arrow, which in turn are acted upon by the slightly inclined cam part m2 (shown in Fig. 3) thus arranging the corresponding dents into a continuously produced series, marked r2; their working edges, indicated at m5, being inclined with respect to the normally beaten up weft-yarns of the fabric. Thus it will be seen that instead of fully beating up the weft by a single quick and direct action of the dent the latter is actuated in a gradual or step-by-step manner, as it may be termed. The active dents may be maintained in the fully advanced position in contact with the pick a short distance, corresponding say to the length of the cam part m3, Fig. 3, after which the dents are successively retracted by means of the rearward deflecting cam part m4 into the straight normally inactive position, preparatory to being again acted upon by the next succeeding cam-link to repeat the cycle of operations.

What I claim as my invention, and desire to secure by United States Letters Patent, is

1. In a loom, the combination of a reed composed of a plurality of pivotally mounted dents, each capable of movement through a circular arc, mechanism adapted for moving the outer or free ends of the dents in a consecutive order from their normal position to a point near the normal position of the fell of the fabric being woven, means cooperating with said mechanism adapted to complete the said movement of the dents, and means for swinging the dents back to the normal position.

2. In a multiple-shuttle power loom for producing textile fabrics, a continuously traveling chain having each of the alternate links thereof adapted to support and carry a weft-shuttle and having the intermediate links provided with a cam device, in combination with a xed rod or shaft, and a shuttle engaging reed comprising a plurality of suitably spaced normally alining individual dent members supported by and capable of independent angular movement on said shaft, the upper or free end portions of the dents being constructed so as to extend through the warps and having another portion in continuous contact with said traveling chain, whereby each said cam device of the latter causes the dents to swing successively from the rearward or normal position to beat up the weft-yarn and to return them back again to the normal position to be acted upon by the next succeeding cam, substantially as described.

3. In a loom of the character described, the combination with a reed consisting of laterally separated individually actuated dents, and a shaft having the latter' mounted and angularly movable thereon, of a suitably supported traveling cam having t-he dents operatively connected therewith, said cam being constructed so that when in action, as in moving across the loom, it operates to successively advance the said individual dents in regular order to gradually beat up the weft-yarn and to return said dents to the rearward or normal position immediately thereafter.

4. In a loom of the character described, a reed consisting of suitably mounted individually movable dent members, each having its upper portion adapted to extend freely through the adjacent warps, and having some of the said dents provided with shuttlc-supporting means arranged to form a normally alining race-way for the shuttles.

5. In a loom, the combination of a reed consisting of individually movablev dent members, means adapted when in use for quickly advancing the dents singly and in a successive order to a position contiguous to the web being produced, and means adapted to coperate with said other means for completing the advance movement of the dents in a relatively slower inanner to beat up the the weft-thread lying` horizontally between wett-thread into the t'a-brie. the Warps, and to then cause each dent to G. In a looni of the Character described, engage the wett and beat itr up into the the combination of a reed having the dents fabric in a relatively gradual manner, and thereof pivotallx7 mounted and Capable ot quickly return the dent back t-o said normal individual angular movement in vertical position. planes between and parallel with the uf'arps, Signed at Providence, I., thiS 28th day and a continuously traveling reed-controlot Gctober, 1907. ling device having the dents engaging there- LEV E. SALSBURY. with, the latter arranged to quickly and Sueeessively advanceI the dents singly from the norxnal or alining position to apoint. near Vv'itneSses Gno. H. RmuNo'roN, HENRY l), Cl'roNn.

Images