US732043A - Loom. - Google Patents

Description

No. 732,043. PATENTED JUNE 30, 1903. J. O. BROOKS.

LOOM.

APPLIOATION FILED FEB. 1. 1900.

N0 MODEL. 3 SHBETS-SHBBT l.

No. 732,043. PATNTBD JUNE 30, 1903.

J. C. BROOKS.

LOOM.

APPLIOATION FILED PEB. 1. 1900.

No MODEL. y a sHBBTssHEnT 2.

@MM 7g No. 732,043. l PATENTED JUNE 30, 1903.

J. O. BROOKS.

LOOM.

APPLICATION FILED PEB. 1. 1900. N0 MODEL.

4UNrrnD 'STATES Patented June 30, 1903.

PATENT OFFICE.

JOHN C. BROOKS, OF PATERSON, NEW JERSEY, ASSIGNOR, BY MESNE A S- SIGNMENTS, TO DRAPER COMPANY, OF I-IOPEDALE, MASSACHUSETTS,

A CORPORATION OF MAINE.

LOOM.

SPECIFICATION forming part of Letters Patent N o. 732,043, dated June 30, 1903.

l Application filed February l, 1900. Serial No. 3.563. (No model.)

.To all whom t may concern:

Beit known that I, JOHN C. Bnooks, a citizen of the United States, residing at Paterson, in the county of Passaic, State of New Jersey, have invented an Improvement in Looms, of which the following description, in connection with the accompanying drawings, is a specification, like letters on the drawings representing like parts.

My invention is an electric loom, being particularly adapted for silkweaving, although capable of use for general weaving purposes, and is preferably an electrical adaptation of the form of loom shown in my United States Patent No. 473,377, granted April 19, 1892.

YIn silk-weaving particularly there is so much nicety of action and adjustment required that most of the work is still done by hand, and the automatic looms have made very slow headway, one reason therefor being that silk-weaving requires very accurate tension on the thread, this not being so required in cotton-weaving, and also the prejudice and preference of the silk-weavers for the old methods has necessitated certain styles of apparatus which have long since disappeared in connection with cotton-weaving. Accordingly I have devised the present form for accomplishing automatically the required results in silk-weaving, (and likewise in all other kinds of weaving, as may be desired,) myinvention including, preferably, a tension device and also including the automatic supplying of filling to the shuttles by means of electrical connections. I have also provided a special means for preventing uneven or improper position of the cop or thread mass within the shuttle, and various other improvements and advantages of my invention will be pointed out in the course of thefollowing description, reference being had to the accompanying drawings, illustrative of a preferred embodiment of my invention, and the latter will be more particularly defined in the appended claims.

In the drawings, Figure lis a fragmentary view from the left side, partly in section, showing a sufficient portion of a loom to enable my invention readily to be understood.

Fig. 2 is a front elevation thereof. Fig. 3 is a top plan view thereof. Fig. 4 isa view similar to Fig. 3, the filling-carrier being re-` moved for the purpose of showing` the feeler and adjacent mechanism. Figs. 5 and 6 are respectively views of the shuttle in top plan and front elevation. Fig. 7 is a cross-sectional view thereof on the line 7 7, Fig. 5. Figs. 8 and 9 are respectively views in longitudinal section and end elevation of a quill or'cop included in my invention. Figs. 10, 1l, and 12 are respectively views in top elevation, longitudinal, and cross section of the tension device. Figs. 13, 14, and l5 are perspective views of details to be referred to.

While I have shown my invention applied to one particular form of broad loom, it will be understood that with slight modifications it may be adapted for various other kinds of looms.

The-loom side a, breast-beam a', lay a2, laysword a3, binder or swella4, shuttle d5, pickerstick a, dagger a7, frog 0.8, reed 0.9, reed-rail orhand-rail d10, and various other details of construction may be ef any usual or preferred kind and will not, therefore, be further referred to.

At one end of the loom-frame above the breast-beam I mount a filler-carrying mechanism, shown as of the endless-belt or card variety of my patent before mentioned and comprising forward and rear sprocket-wheels b and chains b, carrying small clips b2 and springs b3, substantially the same as in my aforesaid patent, and carried in brackets b4 of peculiar construction. On the outer end of one of the axles bx of one set of sprocketwheels b I mount a ratchet-wheel b5, engaged by a pawl b, pivoted in an arm 137, loosely mounted on the axle or shaft bx and connected freely at its end bya link b8 with a crank b9, extending upwardly (see Fig. 1 from a rock-shaft bw, journaled at the 'front of the filling-changing mechanism, asclearly shown in Fig. 2. The shaft blo is normally held in the position shown in Fig. l by a spring s and has fixed thereon two upwardly-overhanging arms i212, which serve as actuators for an ejector or discharge plate b1, mounted in vertical ways bm, provided in the ends Z215 of the brack- IOO ets b4 for the purpose of discharging or ejecting the filling or fresh bobbins into the shuttle When the filling of the latter has been eX- hausted, or nearly so, said ejector and arms being connected by links Z916. At its righthand end, viewing Fig. 2, the shaft Z910 has a crank or rocker arm Z917, pivoted at the free end of a lever Z918, (see Fig. 1,) normally resting on a stop Z919 in the adjacent loom side. The latter lever Z918 carries at its rear free end a second lever Z911, pivoted thereto at Z920, said lever having a forward L-shaped end Z921, normally resting beneath the lever Z918 and projecting into the path of a depending end Z922 of a lever Z923, pivoted to the loom side and carrying an armature Z924 at its rear end, and the lever Z911 has a forked rear end Z925, adapted to engage a bunter c', secured to any suitable part, being herein shown as fastened rigidly to the lay (L2. The forked end Z925 of the lever Z911 is normally below the line of movement of the bunter c and is only in the path of said movement when raised thereinto -by the lever Z923, which at such time is raised port a feeler d, comprising two arms d' d2,

loosely pivoted together and held against stops d3 d4 by springs d5 d6. (See Fig. 4.) The feeler is preferably metallic and insulated from its supporting-bracket, and at its free end enters a usual opening e in the shuttlc-box e', said feeler operating in general the same as feclers commonly provided.

The shuttle a5 is shown in Figs. 5.and 6 and in general is constructed the same as usual, excepting as its form is required to be changed in order to receive and retain the bobbin or filling carrier and filling-case and tension device, as will be presently explained, and contains aplurality of spring-clips f, (shown in detail in Fig. 7,) said clips coperating with depressions yin a filling-case g, which I prefer to specially provide in connection with the filling, as will be more fully pointed out. The filling-case g is preferably made of metal and carries a metal spindle g, hinged at g2 and operating in substantially the same manner as the kind of bobbin-holders sometimes provided in shuttles, although it will be understood that I do not restrict myself to this form of bobbin-support, as any other usual or preferred device for this purpose may be employed within my invention, and, indeed, broadly considered, I do not restrict myself to the filling-case, although for slkweaving it is much preferable. The

Yshuttle has a hole f', adapted to aline with the hole e i-n the shuttle-box for the entrance of the feeler, and adjacent said hole I have shown a contact-plate f2, having connection by a wiref3 (indicated in dotted lines in Fig. 5) to the end springfwithin the shuttle and against which the metal case g bears when in the shuttle.

In silk-weaving, as already mentioned, it is necessary to have uniform and accurate tension, and I have found that the tension is often varied by the twisting or incorrect positioning of the bobbin within the shuttle, as if the bobbin is slightly to one side the thread will not draw off evenly, but will draw off harder on one side than Vit does on the other, and this unevenness will produce disastrous results, especially at the edge of the web being woven,(as1oomtemples are not ordinarily used in Weaving silk.) I have therefore devised a construction in whichA the length of the bobbin is materially shortened,

thereby not only minimizing the irregularity l of tension which would be produced if the bobbin should get out of true alinement, but also rendering the latter less liable to become defiected out of true position by the filling changing or ejecting movement of the filling-changing apparatus, said bobbin being shown in Figs. 8 and 9 at h, from which it will be seen that it is relatively very thin vertically in cross-section and wide horizontally, having a correspondingly-shaped opening h to receive the spindle g and a narrow neck h2 to receive fresh filling to run one or two picks, if necessary, after the filling has become exhausted sufficiently to bring the electrical contacts into operation. This construction permits a much greater amount of thread to be Wound on the bobbin for a given length and a given vertical diameter or thickness than otherwise possible,.or, in other words, I am enabled to wind the required amount of thread on a very short bobbin close to the supporting end of the shuttle and yet without getting it thicker or greater in diameter than is adapted for the shed, and thus the advantageous results pointed out above are secured. At the heel end of the bobbin I secure a contact-spring h3, connected by a wire h1 to a metal boss h5, which comesin contact with the spindle g when the bobbin is placed in position, said contactspring h3 being normally covered by the thread when the filling is freshly supplied to the shuttle and remaining covered until the filling is exhausted sufficiently to make it desirable to supply a new lling and discharge the exhausted one.

At the right-hand end of the shuttle I have shown my tension device abovementioned, said tension being herein shown as carried by the filling-case g and comprising a plate g3, hinged to lugs g4, Fig. 10, and normally held under closing pressure by a spring g5, said plate having a plurality of depending notched Vribs or .fianges gs, which cooperate with projections Q7, projecting upwardly from bottom of the case g, and also, preferably, I suspend auxiliary notched plates g8 adjacent the ribs g, said plates g8 being carried by a band 99 of rubber or other resilient material. The thread (indicated at g10, Fig. 11) is maintained under the desired tension by being caused to pass in the irregular path indicated,

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being thence threaded through a hole or other suitable aperture Q12 and passing out of the shuttle through a rearwardly-oblique Y notch Q13.

Another advantage of my tension is the facility with which itis threaded, it only being necessary to throw up the plate g3 and simply lay the thread along the notches of the iianges Q7 and then permit the plate to snap down by reason of its spring g5, whereupon the thread is immediately placed under tension. The free end of the thread is held prior to the lling being automatically placed in the sh Little by any suitable spring-clips Z930, Fig. 3.

It will be understood that I have omitted a multitude of constructional details common to looms and that I have not shown any of the usual operating mechanism, inasmuch as any common operating mechanism may be used, either such as shown in my beforementioned patent or any other loom construction.

I have already explained the main connections of the electric circuit, it being understood that any suitable source of supply, as a battery w, will be provided at any suitable location, being connected by wires w 'L02 with a plate w3 on the shuttle-box and with the electromagnet, respectively, a wire @U4 leading from said electromagnet to the feeler, and through the latter the circuit is com pleted by contact with spring 71,3, thence through wire h4, spindle g', case g, end spring f, plate f2 to plate w3, dac.

In operation, the bobbin having been wound with weft, so as to retain thespring h3 in an obvious manner, and placed in the shuttlecase, as shown in the drawings, the free end of the thread is dropped on top of the notches of the ribs g7 and the tension-plate is allowed to whip over on top thereof, the thread being then caught in the notch or hole Q12, and the free end thereof is slipped into the spring 530, the case being placed in proper position on the traveling sprocket chain or belt of the filling-supplying mechanism. As the lay is operated in usual manner, the shuttle being shot back and forth through the shed, the iilling will soon become exhausted, and as soon as it becomes suciently so to release or expose the spring h3 the latter will upon the proper pick be engaged by the feeler as the lay comes forward on its front center,and the moment that the feeler and spring h3 come into contact the electric circuit is thereby completed, energizing the electromagnet Z326. The latter instantly raises the armature 1124 of I the lever 1223, therebydepressing the end 1322 thereof, so as to raise the forked end 525 of the lever b into the path of the bunter c just before the latter reaches engaging position therewith, whereupon the two come in contact, and the further forward movement of the lay rocks the shaft 510 over rearwardly, so as to depress the ends of the arms 1112, and thereby forcibly lower the ejector Z913 and press or shove the end filling-case and its contained filling, dac., into the shuttle, at the same time discharging from the latter the eX- hausted filling-case. As the filling was inserted into the shuttle-box the ratchet-arm 217 was by the same movement moved around to the left, Fig. 1, on the ratchet-wheel, so that when the lay went back, thereby withdrawing the bunter from engagement with the fork Z925, the spring s caused the ratchet-wheel b5 to rotate, so as to bring a second filling and filling-case into position beneath the transferrer or ejector Z213 all ready to be put into the shuttle whenever the previous lling became in turn exhausted. This cycle of movements is automatically repeated as the iilling becomes exhausted.

It will be understood that various forms of filling-carriers and of supplying and changing mechanisms may be employed and that also my invention includes changing the shuttles electrically, if desired.

Various other changes than those above mentioned may be resorted to within the spirit and scope of my invention.

Having described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In a loom, a tension device movable with the shuttle comprising a case having a hinged plate, said case and plate each having a plurality of ribs arranged respectively opposite to each other, the filling being received between said opposite ribs, and auxiliary plates yieldingly supported adjacent certain of said ribs to bear yieldingly on the filling.

2. In a loom, a filling-case adapted to receive and supporta bobbin, said filling-case having a tension device comprising a hinged plate, means normally holding said plate downwardly, a plurality of notched ribs on said plate, a plurality of projections fixed in said case opposite said ribs, a yielding device extending longitudinally from rib to rib, and auxiliary plates freely suspended from said yielding device and normally depending slightly below the upper edges of said projections.

In testimony whereof I have signed my name to this speciiication in the presence of two subscribing witnesses.

t JOI-IN C. BROOKS.

Witnesses:

FRED LABAUe-H, F. R. ALLEN.

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