US1142752A - Stopping instrumentality and mechanism for textile apparatus. - Google Patents

Description

, R. CROMPTON.

STOPPING INSTRUMENTALITY AND MECHANISM FOR TEXTILE APPARATUS.

APPLICATION FILED OCLZO. l9l3.

Patented June 8, 1915.

'Wnmaw Iva/7219112701 Rando Zpk/ rompion/ by $5 2 I/ .flbs

THE NORRIS PETERS c0. PHOTQLITHQ. WASHINGTON. D.

"meme s'rn'rns rnrnnr emcee RANDOLPH cnoivrrron, or GHA'lI-IAM, MASSACHUSETTS-.7

STOPPING INSTRUMENTALITY AND MECHANISMIFOR TEXTILE APPARATUS.

T all whom it may concern: t

.Be it knownthat I, RANDOLPH CRoMr'roN, a citizen of the United States, and a resident of Chatham, in the county of Barnstable and State of Massachusetts, have invented an Improvement in. Stopping Instrumentalities and Mechanisms for Textile Apparatus, of which the following description, inconnection with the accompanying drawings, is a specification, like characters on the drawings representing like parts. I

This invention relates to stopping instrumentalities and mechanisms for textile apparatus, and particularlyfor looms. p

In order that the principle of the 1nve ntionmay be readily understood, I have d1sclosed a single embodiment thereof in the accompanying drawings,'wherein Y Figure 1 is a front elevation of a portlo of two. heddle frames each having my 1mproved heddle device mounted thereon; Fig.

2 is a vertical transverse section, showing the heddle devices in side elevation, the shed being closed; Fig. 3 is a view similarto Fig.

2, the shed being open; Fig. 4 is a view simielar to Fig. 3 but indicating warp fault and the consequent movement of a heddle devlce. Fig. 5 is a view, with parts broken away or omitted, but generally similar to Fig. 2, and

representing a modified form of my invention, and Fig. 6 is a view in front elevation,

with parts broken away or omitted, of a slightly modified form of my invention. 7

In my application Serial No. 7 7 9,972, filed July 19, 1913, I have fully disclosed stopping V mechanism for textile apparatus andparper mechanism. I therefore make reference] ticularly adapted for looms, wherein are employed heddle devices of the general character herein set forth. The heddle devices hereinrepresented are adaptedto co-act with any suitable stopping in'strumentality, such for example as a cross rod, bar or tube, to

be lifted upon warp fault and which may be. connected in any suitable manner, as byv the means shown in said application, to the ship- 7 to said companion application for a full dis-- closure of one. type of meansfor operatively connecting the heddle devices to the shipper.

mechanisrmbut I desire. it to beunderstood that my present invention is not limited 'to theuse of the connections thereshown.

Looms have long been provided with warp I Specification of Letters Patent.

Patented June 8, 1915. A plication filed October 20, 1913. Serial No. 796,157.

been placed in" ther'ear of the harness, but

in almostall cases it has heretofore been necessary to rely upon the action of'gravity and therefore to use parts of substantial Weight in the" nature of. drop bars or the like. In all commercial .stopl motions for loomsknown to meemploying heddle stops, the heddle has acted through gravity to-initiate the stoppage of theloom. This has necessitated the useof metallic or like heddles inflexible: or non-collapsible in the direction of itslength, althoughflhi-ghly flexible i- 7 laterally. In practice, the metallic drop:

heddles have given fair satisfaction upon certain kinds of fabrics, but upon certain classes of warps,;these heddles have been found to be impracticable, as they result in the roughening and chafingof the yarn and tempt to overcomethis objection, and particularly in the weaving of cloth involved 1n the use of finer and more delicate warps,

,do not receive'tha't amount ofvertical reciprocation incident to the 'shedding'action of the warps, or in certain cases they have been the breaking of itstenderstrandsv In anatthe dropshavebeen' located behind the. harness, and therefore in a position where they .80

so positioned that they receive no movement V dueto the shedding actionv alone. The 010- i jectlons to this latter class of stop devices are, however, serious, for there involved a large complement; or supply for each loom at least as many as the number of ends 1 used. This involves,,.with many classes of drop devices, the drawing of the warp endsthrough "the drops as well as through the harness, thus largely increasing the labor lncldent to the preparation of the warp for warp. ends in the weaving operation than do the metallic drop heddles, nevertheless'the former class of drop devices does seriously silk goods. Thefso-called. cotton harness,

the loom.;; While: drop devices positioned; back 'of the'harnessdo. less injuryto the textile material-such, foreXample, as cotton or twine' o'r material that is. collapsible in :the direction of its length, is universally -acknowledged' to be best adapted for-useupon 10 5 1 fine work. I have succeeded in utilizing the r having no warp stop motions.

Metallic drop devices are open to certain serious objections, such as the rusting and the electrifying thereof. The latter phenomenon, which is of frequent occurrence in loom practice, results in the holding of the drop of a faulty warp end in place, so that the warp fault is not indicated.

In the preferred embodiment of my in-v vention,1 employ stop devices, which are of the type of so-called cotton harness, to which I have referred, and which do not rely or depend upon the action of gravity to effect the stoppage of the loom in the event of warp fault. The stopping action is thus rendered more certain because no electrification of drops can occur, and because there is less crowding of parts. j Moreover, in that embodiment of the invention herein disclosed, T provide a positive initiation of the stopping action as contrasted. with one which is initiated through the action of gravity. Furthermore in that embodiment of the invention herein disclosed,

the broken or faulty warp end is elevated above the plane of the warps or above the upper plane of .the shed of the warps, in-

stead of being depressed as heretofore, and

thus the broken end may be readily seen and more readily repaired.

Referring more particularly to the draw ings, wherein T have typified my invention as applied to a loom, T have thereinrepresented two heddle frames 1, 2 having upper cross members 3, .4- and lower cross mem bers 5, 6. T have herein represented my invention as applied to a loom having but a single pair of heddle frames, but it may be employed in a loom having any desired number of heddle frames. The said heddle frames 1, 2 are reciprocated by any suitable shedding mechanism. For the sake of clearness, T have shown but a single heddle device 7, 8 in connection with each heddle frame. Each heddl ceives two warp ends and the number-of heddles is proportional to the number'of warp ends. Theheddles are preferably composed of some suitable fibrous or textile material, such as cotton, though I desire it to be clearly understood thatfor the accomplishment of certain advantages and objects of my invention, 1 may employ 'heddles formed partially or Wholly of some suitable device is duplex in that it remetal or non-fibrous material, such for example as wire. I have represented each duplex heddle device as composed of acontinuous twisted strand, piece or band of textile material, such as cotton, cord or twine, it being passed about the upper member 3 or a and the lower member 5 or 6 of its heddle frame in such a manner that it can travel longitudinally, that is, in the direction of its own length and in either direction. Each heddle device may be regarded, and particularly when viewed in side elevation as in Figs. 2, 3 and 4, as com posed of two members lettered respectively A and B and C and D, although preferably each heddle device is continuous and uninterrupted. Each of the members A, B, C and D is provided witha suitable eye or warp receiving formation 9, 9, 9, 9, and through the several eyes pass the four warp ends respectively lettered a, b, 0, (Z. Each heddle device, being composed, in accordance with preferred embodiment of my invention, of a continuous strand of textile material, such, for example, as twine or cotton is of universal fiexibility'and is soft so as not to act harshly upon the warp ends. To prevent stretching of the heddle devices upon warp stress, they are sized or otherwise suitably treated, and the eyes 9 may be varnished.

Viewing each heddle device in front and also in side elevation, reference being made to Figs. 1 and 2, it will be observed that the ends of each heddle device are knotted together at 10 at or closely adjacent to the upper cross member or 4: of the heddle frame. The knots of adjacent heddle devices on the same frame are preferably arranged in staggered relation, so as to permit the employment of a larger number of such devices per inch without interference. From each knot 10 two strand portions'll, 12 extend down in parallelism to the point 13 where they are crossed or formed into a half knot constituting the upper limit of the warp end receiving eye 9. The said strand por tions are separated to form the eye 9, and are then brought together and recrossed at 14 to complete the eye, and are then continued downwardly as indicated at 15, 1.6 in general parallel relation. Two strand .portions 17 '18 indicated at the upper portion of Fig. I, extend from the knot 19 about the cross member 3 or 4 and are continued downwardly in a manner similar to the strand portions just described to form the other heddle member. Each knot 10 also binds to gether the several strand portions 11, 12, 17 and 18. The strand portion 16 extending from the eye 9 passes under and about the lower cross member 5 or 6 of the heddle frame and is continued upward as the strand portion 19 to the eye 9 of the heddle a -B. The other strand portion extending downward from the eye 9, Passes under the cross member 5 or 6 of the heddle frame and 1s continued upward as the strand portion 20 to the eye 9. Thus I provide two loops passing under the cross member 5 or-..6, one loop being composed of the strand portions 16, 19, being of sulficient length to fit' rather closely about the cross member 5 or6, and the other loop being Composed of the strand portions 15, 20, thus providing a considerably longer loop and which is intended to co act with the stopping instrumentality, here= in represented as a tube 21 ofsuflicient lengthto recelve all the elongated'loops of each heddle device. It will thus be observed that each heddle device has but a. single knot, which is in its upper portionand preferably closely adjacent or' in a contact with the cross member 3 or 4 0f the heddle frame.

It will be observed that thewarp end receiving eye or, formation of each heddle member is elongated, it being preferably varnished as previously stated for the I'GCBP".

tion of the warp end, and it will furthermore 'be observed that each eye is substantially,

centrally positioned with respect-to the ups per and lower cross members of its heddle frame. I a 1 i The length of each of the elongated loops composed of strands 15, 20 is such that during the shedding operation, as indicated in Fig. 3, the tube? 21' is]not lifted.- When,

' ment of the member C thereof, carrying I with it the broken or faulty end 0 into the however, warp. fault occurs, such. as Warp breakage and as indicated at cinrFig; 1,

elevated position shownin Fig. 4. Thus the broken. or faulty warp end is lifted above the plane er the shed in which it occurs. This causes an abnormal pull or movement 1 of. the strand portion 15 of the; elongated loop, and results in the liftingiof the tube 21 from the dotted line position to the full line position indicated in" Fig. 4:, whereupon through suitable instrumentalities, such as shown in. my co-pending application above referred to, the shipper mechanism is operate. .71 v Inasmuch as in the disclosed embodiment of the invention, if there were not a positive connection between the. tube 21 and the elongated'loops, the members or strand portions of such loops: would merely move loosely about said tube when abnormal movement thereof occurs iupon warp ,-:fault. I herein" provide astrip22 extending longitudinally;

of the tube 21 at its; underside and secured by a series of screws 23 thereto, so as to. clamp each elongated loop. to-the said tube.

Any other suitable connection may', -how'- ever, be employed for the purpose, v in certain types of. my tive connectionis. not necessary. I

hav'ethus far assumed that end that is broken is one in the upper plane invention, such a j'posi- I of-the-shedL It is evidentwthat if the warp-p1 or faulty warp end is in the. lower planeof the ,shedfthe described. movement of the heddle device upon its supporting members occurs when the heddle frame thereof is" lifted in theshedding-operationr In other words, if the warp end breaks when in the lower plane of the shed, such warp end, as soon asitis moved into the upper plane of theshed, is immediately lifted above the 'fault or breakage occurs when the broken? I' plane of such shed, as indicated in-Fig. 4:.

It is not essential to my invention thatzthe duplex heddle thus be provided; with two downwardly employ any suitable flexible connection eX-' extending loop portions, although ,such construction is preferred. V Within the scope of .my' invent1on,I may 1:.

tending from or forming a portion) of :the

duplex heddle and attached in anysuita'ble manner to the stopping instrumentality I w herein typified by thetube 21. I A- single. downwardly extending'loop may be provided passing freely about the-lower cross member 50r6 and any suitable flexible cone nection may be provided between the duplex heddle device and the. saidtube 21. In Fig.

5 the portion 15, is attached by strip 22 and screws 23 to the tube 21, and the portion 20' 23, saidportionsnot forming acom'plete or continuous loopplEachportion .15 and 20: is unlooped. Neither is it essential-t0 my is attached thereto by strips 22and screws invention that the duplex heddle be provided with two upwardly extendingloop portions, though such construction is herein illustrated and is preferred. 7 In F ig..6 ,I

have," however, represented at A a single upwardly; extending loop portion. Within the scope'of my inventionI may employ various connections between the eyes of each duplex heddl'e, to effect-the shifting 'move, ment thereof in the event of warp fault. 1

1 It will be understood from" the foregoing-,- description that the. stopping instrumentality is positive in its action .and isfnot dependent upon the action of gravity.

avoiding-the use of warp drops, I doaway with thenecessity for drawing thewarp ends through vdrop' devices-kin addition to j I the heddles, and, am, enabledltogutilize the so-called cotton harnesses which do not" chafe or fray-thewarp ends.-

Having thus v described: one illustrative embodiment of. my invention, I desire it to b'eunderstoodfthat although specific terms are employed, they are used in a generic and:descriptive sense and not for purposes of limitation, the scope of the invention being set forthin the following claims.

Claims 1.. In a loom stopping instrumentality, a duplex heddle device of a-single piece of material havingtwo warp end receiving eyes or formations, two substantially equal length loops extending upwardtherefrom, a loop extending downward therefrom, a stopping instrumentality and a flexible connection from one at least of said eyes and attached to said stopping instrumentality.

2. In a loom stopping instrumentality, a

duplexheddle device of a single piece of r material having two warp end reoelving eyes or formations, a loop extending upwardly therefrom, a loop extending d0wnwardly therefrom, a stopping instrumentality, and a flexible connection from one at least of said eyes and attached to said stopupwardly and are of substantially equal length and the other two of which extend passing freely about the upper cross member downwardly and are of unequal length.

5. Ina loom stopping instrumentality, a duplex heddle device having two warp end receiving eyes or formations, two substantially equal length loops extending upwardly therefrom and two unequal length loopsextending downwardly therefrom.

6. In a loom stopping instrumentality, a duplex heddle device having two warp end receiving eyes or formations, said eyes being connected by four loops, two of which extend upwardly and" are of substantially equal length and the other two of which extend downwardly and are of unequal length. r

7. Loom stopping mechanism consisting of'a heddle frame having upper and lower cross members, a transverse stop bar and a duplex heddle device having two warp-end receiving eyes or formations from which extend two substantially equal length loops passing freely 'aboutthe upper crossmem ber andtwo unequal length loops, one passingfreely about the lower cross member and the other passingabout said stop bar and operativelyrelated thereto.

8.- Loom stopping mechanism consisting of a heddle frame having upper v and lower cross members, a transverse stop bar, and a duplex heddle device consisting of a single piece having two warp end receiving eyes or formations from which extend two substantially equal length loops passing freely about the upper cross member and two unequal length loops, one passingfreely about the. lower cross member and the other passing about said stop bar and operatively related thereto.

9; A loom stopping instrumentality con sisting of a duplex heddle device of a single piece oftextile material having two warp end receivingeyes or formations, two substantially equal length loops extending upward therefrom and two unequal length loops extending downwardly therefrom, and a stop device co-actingwith one of said downwardly extending loops.

10. Loom stopping mechanism consisting of a heddle frame having upper and lower cross members, a transverse stop bar and a duplex heddle device having two warp end receiving eyes or formations from which extend two substantially equal length loops passing freely about the upper cross mem ber and two unequal length loops, one passing freely about the lower cross member and the other about said stop bar, said latter loop receiving eyes or formations from which extend two substantially equal length loops and two unequal length loops, one passing freely about the lower cross member and the other about said stop bar, and a strip to secure said latter loop to said'stop bar.

12. Loom stopping mechanism consisting of a heddle frame having upper and lower cross members, a stop device and a duplex heddle device havingtwo warp end receiving eyes or formations from which extend two substantially equal length loops passing freely about the upper cross member and two unequal length loops, one passing freely about the lower cross member and the other engagingsaid stop device.

13. In a loom stopping instrumentality, a duplex heddle device of a single piece of textile material having two warp end re ceiving eyes, said piece having its ends knotted at the upper endof the device and having spaced half knots or crossings defining said eyes andalso having two loops extending upward from said eyes and united at said knot, and two loops extending downward from said eyes and a stop motion instrumentality operatively associated with one of said downwardly extending loops.

14. In a loom stopping instrumentality, a duplex heddle device of a single piece of textile material having two warp end receiving eyes, said piece having-its ends knotted at the upper end of the device and having spaced half knots or crossings defining said eyes, and also having two loops extending upward from said eyes, and two loops of unequal length extending downward from said eyes.

15. In a loom stopping instrumentality, a duplex heddle device of a single piece of textile material having two warp end receiving eyes, said piece having its ends united at the upper end of the device and having spaced half knots or crossings defining said eyes and also having two loops extending upward from said eyes and connect ed at said ends and two loops'extending downward from said eves and a stop motion instrumentality operativelv associated with one of said downwardly extending loops.

16; A loom stopping instrumentality consisting of aduplex heddle device of a single piece of textile material having two warp end receiving eyes. said piece having its ends knotted at the upper end of the device and having spaced half knots or crossings defining said eves. and also having two loops 18. In a loom stopping instrumentality, a

dHDlGX' heddle device, of a single piece of textile material having two warp receiving eyes, said piece having spaced half knots or crossings defining said eves and also having two loops extending upward from saideyes and united at said knot and two loops extending downwardly from said eyes and a stop motion instrumentalitv operatively associated with one of said downwardly extending loo s.

19. Loom stopping mechanism consisting of a heddle frame having upper and lower 17. In a loom stopping instrumentalitv. a.

cross members, a transverse stop bar and a duplex heddle device having'two warp end 20. Loom stopping mechanism consisting of a heddle frame-having upperand lower crossmembers, a stop member and a duplex heddle device having two warp end receiving eyes or'formations from which extend two substantially equal length loops passing freely about the upper cross member and two downward portions, one. being a loop passing freely about the lower cross member and the other beingattached to said'stop member. r r

' 21. Loom stopping mechanism consisting of a heddle frame having upper and lower cross members, astop member and a duplex heddle device flexible in the direction of its length and having two warp end receiving eyes or formations from which extend two substantially equal length loops passing freelyabout the upper cross member and two downward members, one passing freely about the lower cross member and the other being attached to said stop member.

22. A heddle having two openings for the receptionof the warp ends, arranged to an exterior'member adapted to be connected to the shippermechanism, means between said heddle and said exterior member and; attached to the latter to displace thelatter to stop the loom upon the shifting of the heddle eyes.

23. In combination, a heddle having two openings for the reception of warp ends, a

heddle frame whereon said heddle is mount-i shift when released by one of the warp ends," I

ed for shifting movement when released by one'of the fwarp ends, and a member exterior to said heddle frame and adapted to be connected to the shipper mechanism, said hed dle having meansbetween said heddle eves and said exterior member and attached to v the latter, to displace said exterior member, and thereby to stop the loom upon shifting movement of said heddle.

24. In combination, a duplex heddle comprising two members having two openings for the receptionof warp ends, a heddle frame whereon said duplex heddle is mounted for shifting movement when released by one of the warp ends, and a member exterior 25. In combination, a heddle frame havmg upper and lower cross members, a duplex heddle having tWo openings for the reception of warp ends and mounted upon said cross members for shifting movement When released by a faulty Warp end, and a member exterior to said heddle frame and adapted to be connected to the shipper mechanism, said lieddle having a flexible 10 portion attached to said exterior member,

therebyto move the latter andvto stop the loom upon shifting movement of said heddle.

In testimony whereof, I have signed my name to this specification, in the presence of 15 Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Batents, Washington, D. Q.

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