US361994A - Oieoular loom - Google Patents

Description

(No Model.) 14 sheets-sheen 1. A. DE LASKI. GIRGULAB, LOOM.

No. 361,994. `mente@Aprqzfx, 1887.

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No. 361,994. Patented Apr. 26, 1887.

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A. DE'LASKI.

CIRGULAR LOOM. l No. 361,994. Paten/mum. 26, 1887,

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A. DE LASKI. CIRCULAR LOOM. No. 361,994. Patented ApluZ, 1887.

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A. DE L-ASKI.

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CIRCULAR LOOM.

' PatentedApr. ze, 1887.

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CIRCULAR LOOM. No.7361,994. Patented Apr. 26, 1887.

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A. DE LASKI.

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Patented Apr. Z6, 1887.

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Patented Apr. Z6, 1887.

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A. DE LASKI. CIRCULAR LOOM.

Patented Apr. 26, 1.887.

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UNITED STATES PATENT OFFICE.

ALBERT DE LASKI, OF BOSTON, MASSACHUSETTS.-

CIRCULAR LOOM.

SPECIFICATION forming part of Letters Patent No. 361,994, dated April 26, 1887.

Application led September 30, 1836. Serial No. 214.950. (No model.)

To all whom it may concern:

Be it known that I, ALBERT DE LAsKr, of Boston, in the county of Suffolk and State of Massachusetts, have invented certain new and useful Improvements in Circular Looms, of which the following is a specification.

My invention relates to looms of the circular type designed to weave a tubular fabric, and particularly such fabrics as are designed for the manufacture of hose for nre-engine or other water-carrying service, gas or steam service, or analogous use.

It is the special purpose of my invention to so improve the organization of looms` of the class mentioned as to secure simplicity of construction, steadiness, smoothness, and regularity of motion, strength of the various parts, and convenience and certainty of operation, all to the end thata strong and closely-woven hose-tube or analogous fabric may be rapidly and cheaply woven.

In carrying ont the objects of my invention I have substantially reorganized the loom throughout, and I will now proceed to so describe my improvements that others skilled in the art may be able to make and use the same, reference being had to the accompanying drawings, and tothe letters of reference marked thereon, forming a part of this specific-ation, the invention being particularly pointed out and distinct-ly claimed at the end of the explanation of its construction and operation.

Of the drawings, Figure 1 represents a vertical section through the central portion and one side of the loom, said section being taken, as it were, on the line l 1, Fig. 3, looking in the direction of the arrows, the shuttles, shuttie-drivers, and some of the parts connected therewith being removed and the take np mechanism being shown in elevation. Fig. 2 is a vertical sectional view through that portion of the machine not shown in Fig. 1. Fig. 3 represents a top plan view of the upper portion of the machine, parts .being shown as broken away. Fig. 4 represents'a top plan view, parts being broken away, of what I term the spider-plat.e,77 providing bearings 4a-nd guideways for the slide-blocks, by which the heddle-operating arms are actuated. Fig. 5 represents a vertical section through the up- /per central portion of the parts pictured in Fig. 8, showing more particularly the manner of supporting the spider-plate and slide-actuating cam-plate and their adjunets. Fig. 6 is a. vertical sectional detail view through the means immediately connected with the heddles for actuating the same, and showing also the relationship of the spools and warpthreads to the heddles and the devices for initiating the operation of the stop-motion mechanism inthe event of the breaking or failure of a warp-thread. Fig. 7 is a front elevation of a section of heddles, their supporting and guiding means, and parts immediately connected therewith for operating the same, a portion of the frame being shown as broken away. Fig. 8 is a sectional detail view illustrating what I term the shuttle drivingmechanism 7 as viewed from above. Fig. 9 is a side view ofthe mechanism shown in Fig. 8. Fig. 10 is a top plan view of a shuttle and its immediately-assoeiated parts pictured as in operative position in the machine, the weavingpin being represented in section. Fig. 1 1 is a sectional view through the spreader on the line x cr, Fig. 10. Fig. 12 is a front elevation of the shuttle and shuttle-driver and their immediately associated parts, comprising, substantially, what is represented in Figs. 8 and 10 in their proper relative positions when in operation. Fig. 13 is a front view of the shut tle. Fig.-14 is a view of the shuttle viewed from that side in the direction in which it moves when in operation. Fig. 15 is a detail view of certain ofthe warp-tension devices, hereinafter referred to. Fig. 15 is a detail view of a modification. Fig. 16 is a vertical sectional view on the line 3 3, Fig. 15. Fig. 17 represents a view similar to Fig. 14, showing a modified v(and in some instances preferred) form of means for regulating the tension on the filling-thread drawn from the shnttlebobbin. Fig. 18 represents, on an enlarged scale, a sectional detail view of a portion of the stop-motion mechanism. Fig. 19 is a vertical sectional view through a portion of the parts shown in Fig. 18 and hereinafter explained. Fig. 20 is a horizontal sectional view on the line 4 4, Fig. 18, showing the parts as in locked position. Fig. 21 is a view similar to that of Fig. 20, showing the parts as in unlocked position.

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Fig. 22 is a detail view of the clutch mechanism as viewed from above, some parts being represented in section. Figs. 23 and 24 are views of the weft or filling stop-motion mechanisrn, hereinafter particularly described. Fig. 25 is a detail view, in side elevation, of the fabric-take-up mechanism.

Similar letters of reference indicate similar parts in all of the views.

In describing the construction of my organized circular loom, I will begin at the source of power and explain the nature and relationship of the various groups of mechanism, at the same time setting forth their operation and co-operation with connecting parts, following the same through to the point of completing a web and discharging it from the machine, making particular reference to particular rigures when necessary to facilitate an understanding of the case.

A represents the base-plate of the frame of the machine, comprising a suitable number of pillars, a, arranged on the line of a circle and secured to the base-plate, which pillars are aided in being firmly sustained in vertical position by braces a.

a2 indicates the supporting-frame, carrying all of the parts directly concerned in the production of a web, which supporting-frame rests upon and is bolted to the upper ends of pillars a, and has directly secured thereto the brackets a3, for supportingthe shuttle-track, brackets a, for the heddleguiding devices, brackets a5, for supporting certain portions of the stop-motion mechanism and warp-threadguiding means, brackets a6, for the warp-spools and warp-tension means, and upper frameplate, al, for supporting other parts of the loom, as hereinafter explained.

B indicates the driving-shaft supported in suitable bearings provided in the bearings orv supports b b, to which driving-shaft is rigidly aiixed the pulley b', to be driven by the main belt, while the pulley b2, to receive the belt connecting it with the pulley b3 on the main shaft b4, is loose upon the main shaft B, so as to be longitudinally movable thereon, and is provided with a clutch part, as hereinafter explained. .Y

Main shaft b4 is arranged longitudinally in bearings in the upper part of the frame, and is provided on its inner end with a bevel-gear, c, constructed and arranged to intermesh lwith and drive bevel-gear c, provided with adownwardly-extending hub or sleeve, by which it is secured to a sleeve, c2, adapted to turn or be rotated on a sleeve, e3, rigidly sustained by its upper end in the machine by a bracket, c", so that as main shaft b* is rotated it will, through the medium of bevel-wheels c c', revolve or actuate all of the parts connected with sleeve c2.

D indicates the spools carrying the warpthreads, which spools are arranged to turn in suitable bearingsformed in the brackets a6. The warp-threads W are conducted from the spools D through eyes d in tension and guide bar d', secured to arms of brackets a6 around tension-drum d, secured at its ends to a rod, d, which rod is adapted to turn in suitable bearings formed in said armsof said brackets, (see particularly Figs. l5 and 16,) whence the warp-threads pass th rough the eyes of feeler-pins d3, connected with the stop-motion mechanism, through the eyes of the heddles d* to the point on the weaving-pin d5' where they are woven into the fabric.

By reference to Fig. l5 it will be seen that guide and tension bar d may be so adjusted in its bearings or supports by means of nuts 2 3 as to vary the angle that the warp-threads may have through the eyes d with reference to the line of draft between the spools and said guideeyes and drum d2, this construction being for the purpose of adjusting the tension on the warps so as to insure the turning of said drum as they are drawn off. If the warps are light and the goods not very closely Woven, the bar d may be so adjusted as to have the guideeyes d, as nearly as may be, on a line with the draft of the warps, and vice versa, in case the warps are coarse and laid up with wefts under heavy tension.

In the example shown the tension-bar d is provided with thirty-four guide-eyes, d, so that that number of warps may be led from the warp-spools therethrough; or a greater number of eyes may be provided for a greater number of warps, or the use of soine dispensed with when a less number of warps is used, as the size or character of the fabric to be woven may demand; and where'the tube to be produced is small, and but comparatively few warps are used to each warp-tension merchanisni, a grooved wheel orY pulley, d10, may be provided, instead of the drum d, for each warp-thread, which wheel or pulley may be secured to rod d, as represented in detail in Fig. 15a. y

E represents the octagonally shaped spiderplate, supported on brackets e, extending up from the circular top plate, al. Said spiderplate is provided in its center with an aperture, e', through which the sleeves c2 c3 extend, so as not to come in frictional contact therewith. The spider-plate is provided in its upper face with radial grooves e2, to serve as guideways for the sliding blocks e3. (Shown most clearly in Fig. 5.) Said slide-blocks are .provided with upwardly-projecting studs e,

to which are secured so as to turn thereon antifriction rollers or bowls e5, which rollers or bowls extend into a cam-groove formed in the lower face of a cam-plate, es, rigidly secured to and so as to turn with sleeve c2.

It will be noticed that the relative arrangement of the spider-plate E and the cam-plate es is such that the said cam-plate will readily reciprocate the slides in the grooves of the spider-plate, but will at all times positively hold and maintain said slides properly within the grooves. Such a construction secures positiveness and certainty of operation, and presents-a compact and durable arrangement.

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- with the heddle-bars f7, Figs. 6 and 7.

f3 is connected at substantially its center with F represents arms pivoted at one end to slideblocks e3 and at their other ends to the outer or upper ends of armsf, rigidly secured at their lower or opposite ends to a rock-shaft, f', adapted to turn in suitable bearings formed in the upper ends ot' pillars f2, extending up from upper circular plate, a7, Fig. 6. Rock` shaft f has an arm, f3, rigidly secured thereto at each of its ends, and to each end of each arm f3 is pivoted one end of rodsfi, which latter are in like manner connected at their opposite ends with short sleeves or collars f5, adapted to slide on rods f6, and connected rock-shaftf, so that as said shaft is rocked by the movement in and out of slidelblocks e3, acting upon arms Ff, said armj"3 will be oscillated and alternately raise and lower the dit.

ferent sets of heddles, 104, with which the opposite ends of arm f3 are connected, so as to form the shed in the warps for the passage ot' the shuttle.

The construction whereby I am enabled to operate the heddles, particularly with respect to the radially-grooved spidereplate E, slideblocks e3, and camplate es, and their features and adjnncts, I regard as an important feature of the invention.

By reference to Fig. 3 it will be seen that of the eight sets of heddles represented but two sets (one on each side of the machine) are in course of operation, while the other six sets (three on one side and three on the opposite side) are at the extreme limit of their movements-three in one extreme position and three in the other-so that the shed will be entirely open at these opposite points, fully enabling a shuttle and other weft-laying devices to operate at each of these points and the position of the warps to be changed therebetween. To place the warpethreads W under the requisite tension, and to keep the latter uniform in degree under all circumstances7 I pivot or otherwise fulcrum an arm, G, on the upper circular plate, a7, one such arm for each spool D, and provide the outer free end of said arm with a pad, g, adapted to rest on the yarn or thread wound on the spool. A short rod, g', projecting up from circular plate al, extends through the rear or inner end of arm G, and is provided on its upper end with a nut, g2. A spiral spring, g3, is interposed between the inner end of arm G and plate al, in such relation thereto as to operate to press said end of said arm upward, and as a consequence the pad g upon the yarn or thread upon the spool D.

As is well known, and for reasons so well understood as not to be necessary to be here explained, it requires-less force or power to draw yarn oit' from a full bobbin offering any resistance to such operation than a nearly empty one; and it is in like way well understood that a spiral spring, such as is indicated by gwill act with greater force when closely compressed than when expanded to nearly its utmost limit. It therefore follows from the construc- Arm' tion and arrangement of parts shown that when the spool D is full and spring g3 is closely compressed it will press pad g upon the yarn with quite its utmost force, and that as the spool becomes empty spring g3 will become relaxed and press the pad with lighter force upon the' yarn or thread, thus making the power necessary to draw the thread or yarn from the spool equal at all times.

The tension exerted on the yarn by the means just described cannot advantageously be made sufficient for successfully weaving such goods as my loom is particularly designed to produce. To provide further tension on the warpyarns,the tension-drum d2, around which said yarns are wound one or more times after passing through the eyes d of guide-bar d', is provided with a bandwhee1, g?, as shown most clearly in Figs. l, 15, and I6. A cordor band, gi, having one end secured to an extension, gs, ofthe bracket supporting the tension-drum d2, is wound around said band-wheel g; and has its other end secured to ashort rod, gi, extend ing up through a hole in a plate or bracket ou the upper end of bracket a5. A thnmb'nut, g8, is screwed on the lower end of said rod gl, so as to regulate the force with which the band g5 is drawn around wheel g4, and as a resultant effect the force required to draw the yarn wound around the tension-drum d2 from the spool D, said band g5 operating with frictional effect on wheel g4.

Rigidly secured to a sleeve, H, loosely surrounding revolving sleevefci, is a bevel gearwheel, h. As said sleeve is connected by brackets h', or in any other suitable manner, with the stationary parts of the frame, said wheel lt is also held stationary. Below the hub of wheel lz., and between it and a collar, h2, fixed on stationary sleeve c3, is arim or collar, h3, secured to revolving sleeve dl so as to turn therewith. Said collar h3 is provided with short arms or extensions h4, to which are secured by means of bolts and screws, or in any other suitable manner, the brackets I, carrying what I term the shuttle-driving mechanism. A shaft, t', journaled in suitable bearings in said bracket Lis provided on its inner end with a bevel-pinion, i', constructed and arranged to mesh #with bevel-gear It, and at its opposite end-said shaft i is provided witha gear-wheel,

ii, meshing with a similar gear, t, fixed on a short shaft, t, having bearings formed in laterallyextending arms t5 of bracket I, as seen in Figs. 8 and I2. A smooth or friction facedY driving-wheel, t, is also secured to shaft t", j ust inside of the point at which wheel t3 is secured thereto, the function of which latter wheel will be presently explained. It will now be seen that as sleeve c2 is revolved, collar h3 and bracket I, connected therewith, will be carried around with it, and shaft t' will be revolved by reason of the engagement of its attached bevel-pinion c" with iixed gear h, and as a consequence driving-wheel is will be also revolved through the medium of gears i2 is.

The arrangement of shuttle-driving frames ICO and shuttle-driving devices,asaboveexplained, insures a compact and simple arrangement of the parts, since the shuttle-driving frame is supported directly at the center of the machine 5 in a convenient position for effective operation.

.I represents the shuttle, by which term, in its general sense, it is meant to include, substantially, all of the contrivances carrying the [o filling and passing through the shed, and

in its confined sense said term is used to einbrace simply the frame carrying the parts operatively connected therewith. Journaled on suitable studs or pins connected with the shut- [5 tle-frame are wheels jjjjthe former arranged near the outer edge of the frame and adapted to travel on inclined circular trackplates j?, and the latter arranged at a suitable point inward toward the center of the loom 2@ and adapted to travel on inclined track-plates 13, said track-plates being secured to and supported by brackets a3, attached to the part a? of the frame. Journaled on a suitable stud of the shuttle-frame, near the outer rear edge z5 thereof, is a horizontally-arranged wheel,j*, adapted to roll in contact with and bear against the sides and within the circle described by a series of pins, j, closely arranged around the outer edge of track-platef, and on a stud depending from the outer end of an arm,j, integrally connected with the shuttle-frame at its outer edge and near its forward end, is another horizontally arranged wheel, j?, adapted to roll in Contact with the outer sides and without the circle of the pins j. Extending upwardly and rearwardly from the front face of the shuttle-frame is an arm, ja, to the free end of which on a stud projecting therefrom is journaled a friction-wheel, f, adapted to roll iro in contactV with and be driven by drivingwheel ZG, and in turn to roll in contact with and drive rear wheel, j, of the shuttle or shuttle frame or carriage. The force to drive the shuttle being applied near its rear outer corner, there will be a tendency to press the shuttle at this point outward from the center of the machine and the outer forward corner infward; hence the provision of wheelsj and jl, operating on opposite sides of the circle of 5o pinsj.

lo represents an arm extending down and curving outward and upward from the bracket I, for the purpose of stopping the shuttle from shooting forward out of place and out of control of the shuttle-driver when the latter is stopped. As shown, not only is each individual track-plate inclined, but one is inclined with respect to the other-that is to say, the face of each track-plate is inclined, and the 6o outer, jz, is placed at a lower horizontal plane than the inner, ja. This construction is im portant, since it enables me to so operate the heddles as to keep both sets of warp-threads in the formation of the shed at all times at the same angle, and consequently under the saine tension, and to utilize substantially all of the space in the shed for the shuttle, permitting me to employ a spool or bobbin of larger size than could otherwise be done, as will be understood, and the importance of which will be appreciated by operators of looms of this type.

The means just described serve to support and guide the shuttle in its movements when operated by the shuttle-driving mechanism, all as has been so clearly indicated in the explanation of the arrangement and relationship of parts as to need no further description.

K indicates the shuttle spool or bobbin on which the weft or filling yarn or thread WV is wound, and from which spool or bobbin the weft or filling W is led over a rod or wire, 7c, inward to and through a guide-eye, lo', to and back and forth through eyes or holes formed in a bar, k2, and beneath the end of a tensionspring secured to said bar, to and through an eye in what I term the batten-shoe7 or follower7 7c3, curved to conform to the cylindrical form of the weaving-pin, by which battenshoe the iilling is laid and pressed into the fabric somewhat analogous to the manner in which weft is beat up by a reed or lay in an ordinary loom. It is to be noticed, also, that the hatten-shoe 7c3 is provided with a guideeye, 7c, (shown by dotted lines in Fig. 10,) through which eye the weft or filling W passes to its place between the warps on thel weaving-pin This construction serves to assist in guiding and steadying the weft, so that the hatten-shoe will act with certainty thereon, and that it (the weft) will be laid in precisely proper position in the fabric.

To insure the proper opening of the shed for the passage of the shuttle and secure the close insertion of the weft or iilling and most effective operation of the batten-shoe, I provide the shuttle on its inner forward part with what I term a spreader,7 Il, formed of sheet metal and V-shaped in cross-section, as represented in Fig. 1l, and bulged out or forward, as at Z, a point between track-plate js and the weaving-pin, as viewed from above, and retreating rearwardly from said point Z, the inner edge or point, Z', of said spreader eX- tending to or nearly to the weaving-pin, and being engaged by a forwardly-extending rod or arm, Z, of the betten-shoe c, which rod Z2 extends around within the spreader and is secured at Z3 to the forward inner portion of the shuttle frame or carrier. This rod ZZ and the brace rods or wires Z", connected at one end with the rear edge of the spreader L and at the other with the supporting-arm Z5 of the batten-shoe 7a3, serve to support'the said spreader in proper position in the shed.

As will be supposed, the weft or filling XV islaid up in the fabric under heavy tension, in order to secureaclosely-woven fabric; and to provide for this tension, in addition to leading the weft in a zigzag course through the eyesv in the tension-bar k2, which in itself would place said weft under considerable' stress or strain in drawing it from the bobbin, I pivot a tension plate or spring, M, on a stud, m, projecting inward from near the rear end of tensionl that its face toward said tension-bar will bear adapted to have one arm or end, 0', to bear on' on the weft-yarn threaded therethrough, as shown in Fig. 10. I also provide said tensionbar with a screw-threaded stud, m, which extends through the tension spring or plate M, and has a thumb screw or nut, m", turned thereon, by which means the force by which the tension-spring is made to bear on the weft or filling NV can be adj usted and the tension on said filling regulated.

To secure an even tension on the weft-that is, to compensate for the variation in tension occasioned by the variation in the angle at which the weft is drawn from the bobbin or spool K over the wire la, as the amount of yarn on the shuttle-spool K varies, substantially the same as has beenl explained with reference to the warp-spools I)*I journal arod, N, in the shuttleframe, just forward of or inward heyond the shuttle-spool, and secure thereto an arm, n, provided on the end extending toward the sh uttlespool with a pad, n', adapted to rest on the spool or bobbin K, and one end of a spiral spring, n2, coiled about a stud, n3, projecting out from the frame, is secured to a collar, n", attached to rod N, and operates with a tendency topress said pad n on the yarn on said spool or bobbin K. As the yarn on the spool K is drawn off and said spool becomes empty, the tension of spring n2 relaxes, and pad n bears on the yarn on the spool wit-h less force, thus compensating for theincreased force or power required to draw the yarn from the spool.

As an addition to the means just described, I may provide, and in most instances prefer to construct, the machine with the form of means represented in Fig. 17that is, I provide the shuttle-frame on its forward part with a dog, 0, pivot-ed at o to the frame, and

the ext-ended core or journal o2 of t-he spool or bobbin K, and having its other end or arm, o3,

, engaged by one end ot' a spring, o, secured to the trarne and operating with a tendency to press the arm o of the dog O on said journal o, and by frictional contact therewith retard its revolution. A cam, 05, is secured to the extended end of rod N, and bears upward on said spring o4 with a tendency to cause the latter to so operate on dog O as to force its arm or end o with greater force against thejournal o2 ofthe bobbin or spool K. As the yarn on the spool K is drawn off, and rod N is permitted to turn in the direction of the arrow, Fig. 17, by the operation of spring n2, Fig. 10, as also by the pressure of spri ng o4 on cam o5, said cam will be turned to relieve the stress by which it causes spring 0^L to act on dog O, the form of said cam being such aste permit this operation. Consequently, as the amount of yarn on the spooLK decreases, the resistance to the turning of the spool, caused by the fric tional contact of arm o of dog O with itsjournal or axle, will also decrease.

In the event of the breakage or exhaustion of a weft orv warp thread, I have provided a construction whereby the weaving operations ofthe machine will be automatically stopped, as I will next proceed to explain.

- P represents a bevel-gear secured to the main shaft batany suitable point, but preferably near or adjacent to driving-pulley b3, as seen in Fig. 2. vSaid wheel P meshes with a like bevel-wheel, p, secured to the upper end of an upright shaft, p', supported in suitable bearings formed in brackets attached to the frame of the machine, which shaft p is provided, at a point below wheel p, with another bevelgear, p2, meshing with a similar gear, p3, secured on the outer end of a shaft, p, hori- Zontally arranged in the machine and adapted to turn in bearings formed or supported therein. (See Figs. 1, 2, and 18.)

Q represents a disk having an elongated hub, g, coarsely screw-threaded on its interior, and connected by this means wit-h a coarse screwthread, g', formed on the shaft p, and frictionally held thereon so as to turn therewith, excepting when opposed with considerable resistant force.

q2 represents a spiral spring having one end secured to a collar, g3, rigidly secured to shaft p, and the other end attached to the inner end of hub q, which latter has a groove, qt, formed around its enti re circumference, all as clearly shown in Figs. 18 and 19. Projecting horizontally outward from the outer face of disk Q. are pins g5, adapted to engage the pins r, arranged vertically in a hoop or ring, R, horizontally arranged in the machine, and supported on pulleys r', which latter devices are arranged so as to turn on studs r2, secured in the brackets a5 of the frame.

The construction and arrangement of the parts last described hereinbefore are'such that as sha-ft p is revolved itwill, through the medium of gears p2 p3, revolve shaft p, and with it disk Q, held by frictional contact and by the stress of spring q2 to turn in unison therewith, and the pins Q5 of disk Q, engaging pins r of hoop or ring. R, will turn the latter on pulleys r', when, as has been said, no considerable resistance is loffered to the turning of disk Q. Should, however, obstruction be offered to hold hoop Rfrom being revolved, the revolution of disk Q, will also be stopped, though shaft p4 will continue to revolve, the result of which will be to screw disk Qand its collar q back on said shaft 1f, so as to disengage pins Q5 from pins yr, and when saidrim R is again permitted to revolve the-tension of spring q2 will operate to screw said disk Qand its attached hub back to its former and normal position, so as to bring pins qi' and o" into engagement with each other, all as will be clearly understood by those skilled in the art upon an inspection of the figures ofthe drawings last hereinbefore mentioned.

S represents a lever pivoted, at s, at a suitable point on the bracket c5, provided at its upper end with a pin or anti-friction roller journaled on a stud or pin and extending into the groove g* of the elongated hub of disk Q, Fig. 18, and resting against or loosely connected with a short laterally-extending arm, s', of a latch-lever, s2, pivoted to the frame at sa, and having a spring, s4, connected therewith and withnthe frame at a suitable point outward from its fulcrum, which spring s4 operates with a tendency to throw the end .S5 of said lever in the direction of the arrows pictured in Figs. 20 and 2l. The outer end, ss, of said lever is supported in a suitable loop or guideway, sl, and is adapted to be engaged and operated against the tension of spring s* by the operator. Y

The inner end of lever e2 is provided with a hook or notch, ss, adapted to engage or hook over the upper end ofa shipper-lever, T, pivoted or fulcrumed at t to a projection or ear on the bracket b of the frame, and guided at its upper end in a loop or way, t,while at its lower end it is connected to the bow portion of a U-shaped rod (see Fig. 22) having the inner ends of its arms t2 t? connected to a yoke, t3, having a stud, t, Yextending into a groove formed in the outer circumference of the clutch part t5, having a feather-and-groove connection Ywith the drivingshaft B-that is, splined thereon so as to turn therewith, and at the same time be longitudinally movable thereon. Said clutch part t5 is adapted to engage with the clutch part t6. constituting a portion of the hub of pulley b2, which is loose to turn on shaft B when not in engagement with the clutch part t5. Arms t2 of the U-shaped rod are guided in suitable ways formed in the bracket b, and spiral springs t7t7,su rrounding said arms and arranged between one of their bearings and fixed collars t8 t thereon, operate with a tendencyrto draw the YUfshaped rod and clutch part t5, with which it is' connected, away from clutch part te, so as to leave pulley b2 to turn freely on shaft B without revolving the same. It will now be understood that if the upper end of lever T were moved inward in the direction of the arrow, Fig. 18, its lower end would be moved in the reverse direction or opposite to the stress or force exerted by spring t7 forcing clutch part t5 into engagement with clutch part. t, causing pulley b2 to be turned with driving-shaft B and putting the machine into operation. At the same time the upper end of said lever T would be caught behind the hook sS of lever s2 and be held in that position, as represented in Fig. 20. Should, however, lever s be moved to the position represented in Fig. 21, either by operating said lever by hand or automatically through the medium of lever S, as hereinafter explained, springs t7, acting on the U- shaped rod, will disengage clutch part t5 from clutch part t, leaving pulley b2 to turn with freedom on shaft B and the machine to stop.

As before explained, each warp-thread is led from the tension device through an eye formed in the inner end of a feeler-pin, da,

which latter device is arranged so as to slide in bearlngs formed in a small bracket, V, secured to the lower face of a ring, c, resting on and secured to the upper ends of brackets a5. Attached by one end to said feeler-pin cl3 at a point between its bearings, and having its other end resting against one of said bearings,

is a spiral springw', operating with a tendency to press said feelerpin outward, as indicated by the arrow, Fig. 6, so that its outer endwill engage with the vertical pins r of ring or hoop R and stop its revolution, as also the revolution of disk Q, which will effect the screwin inward of said disk and its attached hub ang operate lever S, all as hereinbefore explained, to unlateh shipper-lever T and stop the machine. The tension on warps W issuficient, however, to hold said feeler-pins inward out of engagement with the pins r of rim or hoop B, so that the machine may operate so long as the warps remain intact and be stopped through the instrumentality of said feeler-pi ns d3 when a warp breaks or runs out.

Another function of the feeler-pins is to take up the slack in the warps as the heddles operate to change the position of the warps to form the shed, their outer ends being far enough distant from the pins i' to permit them to move for this latter purpose without engaging or coming in contact with said pins. By this construction, also, the feeler-pins operate to take up any undue slackness of individual warps caused by uneven winding of the same on the warp-spools, and for the same reasons as those explained should any individual warp become very slack its feeler-pin will operate to stop the machine in the same manner as though such warp had been broken.

To effect a stoppage of the loom automatically when a weft or lling thread, W', breaks, I provide the mechanism Ywhich will next be described.

X represents a rod (see Fig. 1) supported horizontally in bearings formed in t-he bracket a5 and part a of the frame in such position with respect to ring or hoop B as to be moved outward into engagement with or inward to be disengaged from pins r. A spiral spring, x, surrounding said rod X and operating between a collar, x', fixed thereto and the siderof the frame, tends to press said rod outward,as aforesaid. A spring-actuated latch, x2, Fig. 24, is pivoted to the inner face of the frame a2, and is adapted to snap into a notch formed in the inner end of rod X, and so hold the same from engagement with pins r, as aforesaid.

As shown in Fig. 10, tension-bar k2 is pi-voted at its rear end, as at x3, to lugs formed on the shuttleframe, and at its forward end it is loosely connected to the inner end of a rod, x, suitably mounted in bearings, so as to slide therein and through the hollow axle x of the forward wheel, j. The construction and relationship of the partsjust described aresuch that the tension on the weft-yarn as it is drawn from the shuttle will hold the forward end of bar k2 inward, and consequently maintain rod x* in the same but should said weft-thread break, spring x5,

position asY represented in Fig. 10;

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