US1142751A

US1142751A - Stopping mechanism for textile apparatus.

Info

Publication number: US1142751A
Application number: US77997213A
Authority: US
Inventors: Randolph Crompton
Original assignee: Individual
Current assignee: Individual
Priority date: 1913-07-19
Filing date: 1913-07-19
Publication date: 1915-06-08
Anticipated expiration: 1932-06-08

Description

R. GROMPTON.

STOPPING MECHANISM FOR TEXTILE APPARATUS.

' APPLICATION FILED JULY 19. 1913.

1,142,75 1 Patented.) 11110 8, 1915.

4 SHEETS-SHEET I.

Witnesses: Inventor.-

Z Randolph Grow gala, x41? 214i flwzg dw mm 0. g J Jays THE NORRIS PETERS 50.. PHOKLLITHOH WASHINGmN, D C.

R. CROMPTON.

APPLICATION FILED JULY 19, I9I3.

Patented June 8, 1915.

4 SHEETSSHEET 2- fig-5:.

8 Inventor.- Randolph Ora 31 W} 7 STOPPING MECHANISM FOR TEXTILE APPARATUS WzLZnes-Ses:

THE NORRIS PETERS c0, PHOTO-LITHCL, WASHINGTON. D C.

R. CROMPTON.

STOPPING MECHANISM FOR-TEXTILE APPARATUS.

APPLICATION FILED IULY 19, 191.3.

Patented June 8,1915.

4 SHEETSSHEET 3- Witnesses: J ZZ/62410? Baa ado h rovnpton,

'5, a4 b g: Y a W We Q. y I I gs.

R. CITOMPTON'. STOPPING MECHANISM FOR TEXTILE APPARATUS.

APPLICATION FILED JULY 19, I9I3.

Patented June 8, 1915.

4 SHEETS-SHEET 4.

5 J J as w ,8 1. .F 5 7 1- n Fi 1.; n d 9 5 3 4 4 My -1 I- W ML 7L jnveimiorc flajadol ah C'rompian, y 9%.; l

fliiys.

THE NORRIS PETERS CO., PHOTO-LITHO WASHINGTON, a. c.

RANDOLPH OBOMPTON, OF WORCESTER, MASSACHUSETTS. I

STOPPING MECHANISM FOR TEXTILE APPARATUS.

Specification of Letters Patent.

Patented June 8, 1e15- Application filed July 19.1913. 7 Serial No. 779,972.

characters on the drawings representing like parts.

This invention relates to stopping mechanism for textile apparatus, andparticularly for looms.

In order that the principle of the invention may be readily understood, I have disclosed a single embodiment thereof in the accompanying drawings, wherein- Figure l is a vertical section of a loom from front to rear and having my invention applied thereto; Fig. 2 is a front elevation, with parts broken away, of the. construction shown in Fig. 1; Fig. 3 is a detailon a larger scale than Fig. 2 of a portion of the heddle frame guiding means and related parts; Fig. 4 is an end elevation of theconstruction shown in Fig. 3; Fig. 5 is a vertical section on the line 55 of Fig. 4; Fig. 6 is a view partially in plan and partially in horizontal section, of the heddle frames and guiding means therefor, parts being broken away; Fig. 7 is a detail in front elevation showing a portion of the electrical connections of the stopping mechanism; Fig. 8 is a vertical section on the line 8-8 of Fig. 7; Fig. 9 is a view in vertical section and somewhat diagrammatic representing four warp threads, the shed being closed; Fig. 9 is a view in front elevation, of a portion of one of the heddle devices; Fig. 10 is a view similar to Fig. 9, but representing the shed open; Fig.

.11 is a view similar to Fig. 10, but represent ing the change occurring upon breakage or fault of one of the warp threads; Fig. 12 is a detail inside elevation ofa portion of the shipper mechanism; Fig. 13 is a similar view in rear elevation and representing the lay in section; Fig. 14: is a view partially in transverse section and partially in plan of the construction shown in Figs. 12 and .13; and Fig. 15 is a view, partially in elevation and partially in section, upon the line 15-15 of Fig. 13. p

Looms have long been provided with warp stop motions which have been placed in the harness so as to form a part thereof or have been placed in the rear of the harness-but in almost all 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 stop motions for looms known to me employing heddle stops, the heddle has acted through gravity to initiate the stoppage of the loom. This has necessitated the use of metallic or like heddles in-' flexible or non-collapsible in the direction of their length, although highly flexible laterally. In practice, the metallic drop heddles have given fairsatisfaction 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 chafing of the yarn and the breaking of its tender strands. In an attempt to overcome this objection, and particularly in the weaving of cloth involved in vices are, however, serious for there is in-" volved a large complement or supply for each loom at least as many as the number of ends used. This involved, with many classes of drop devices, the drawing of the warp ends through the drops as well as through the harness, thus largely increasing the labor incident to the preparation of the warp for the loom. While drop devices positioned back of the harness do less injury to the warp ends in the weaving operation than do the metallic drop heddles, nevertheless the former class of drop devices does seriously injure certain classes of goods and especially silk goods. The so-called' cotton harness, by which term I include harnesses made of textile material such, for example, as'cotton or twine or material that is collapsible inthe direction of its length, is universally acknowledged to be best adapted for use upon fine work. I have sucoeeded'in utilizing the so-called cotton harness asa warp stop device, and thus I retain all the advantages of such 1 class of harness and inaddition avoid the necessity of drawing the warp ends through a harness and also through drop devices. I thereby efliect the shedding of the warp with the least possible chafing thereof, and at the same time there is necessitated no more labor in the drawing in of the warp than in the ordinary type of looms 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 invention, I 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. Moreover, in that embodiment of the invention herein disclosed, I 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, instead of being depressed as heretofore, and thus the broken end may be readily seen and more readily repaired.

Other advantages of my invention will be readily apparent from the description of that single embodiment thereof which I have herein disclosed.

Referring more particularly to the drawings, I have therein represented a conventional type of loom having side frames 1 and 2, breast beam 3, a lay 4L operated in any suitable manner and a let off 5. These parts may be of any suitable or desired con struction, and other parts of the loom commonly employed are omitted for clearness of illustration.

My invention may be employed with any desired number of heddle frames or supports. I have herein illustrated but two heddle frames, but it is clearly to be understood that my invention is not limited there to, although I shall describe my invention and the functioning of the various parts thereof with reference to the employment of but two heddle frames.

Referring more particularly to Figs. 2 to 6 inclusive, I have therein indicated two

heddle frames

6, 7, the former having upper and

lower cross members

8, 9, and the latter having upper and

lower cross members

10, 11. The said heddle frames are reciprocated by any suitable shedding mechanism (not shown), and to which they are connected by suitable'strips 12. Preferably the heddle frames are connected to the floor or to a suitable base by means of spiral springs 18, 14, connected to the said frames by hooks 15.

For the sake of clearness, I have shown but a single heddle in Fig. 2, but have diagrammatically indicated the same in Figs. 1, 9, 10 and 11. The number of heddles is proportional to the number of warp ends, and they are preferably formed of some suitable textile material, such as cotton, though I desire it to be clearly understood that for the accomplishment of certain advantages and objects of my invention, I may employ heddles which are formed partially or wholly of some suitable metal, such for example as wire. One of the advantages of my invention is that the broken warp end is lifted incident to the stoppage of the loom, and this result may be effected by the use of a metallic heddle, but preferably I employ heddles of textile material, because of the many advantages incident to their use, and certain of which I have above set forth.

In Figs. 1, 2, 9, l0 and 11, I have indicated two

heddle devices

16, 17, each of which is duplex in that it receives two warp ends. Each heddle device is represented as 9 composed of a continuous, twisted strand, piece or band of textile material, such as cotton, cord or twine, and is passed about the

upper member

8 or 10 and the lower member 9-or 11 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 duplex heddle may be regarded, and particularly when viewed in side elevation, as in Figs. 9, 10 and 11, as composed of two members lettered respectively A and B and C and D, although preferably, as previously stated, each heddle device is continuous and uninterrupted. Each of the members A, B, C and D is provided with a suitable eye or warp receiving formation 18, and through the several eyes pass the four warp ends respectively letters a, b, o and d. Although each heddle device may be made in any suitable manner, I preferably construct the same of a continuous strand, piece or band of textilematerial, such as twine, which is of universal flexibility and is soft so as not to act harshly upon the warp ends.

Viewing each heddle device in front or rear elevation, reference being made to Figs. 2 and 9 it will be observed that each member C or I) is composed of two strand portions 6, 7 (extending from the other member) and passing down in parallelism to the point 9 where they are crossed or formed into a half knot and separated to form a loop or eye it, being again brought together and recrossing at i to complete the loop or eye and being then continued downwardly in two parallel strands as indicated at 7', k.

In reality, the entire device is composed of a single twine or piece, which is uninterrupted and without knot or crossing at the point of support of the upper heddle member, and at the point of support of the lower heddle member the parts of the two members of the double heddle device may be knotted together and continued beyond the knot as hereinafter described. It will thus be observed that the eye of each heddle is composed in the disclosed embodiment of the invention of the same material as the other portions of the heddle and that no knots, but on the contrary merely crossed strands or half knots, are presented to the warp end of the heddle eye. In order to prevent any expansion or stretching of the heddle when the unbroken warp end imparts longitudinal movement thereto, I suitably size or otherwise treat the heddle. In

the manner described or in any other suitable manner, I prevent any longitudinal expansion, which, if it occurred to any suitable extent, would prevent initiation of loom stoppage. It will be observed that the eye or thread receiving formation of each heddle member is elongated, and preferably it is suitably varnished for the passage of the thread. It will furthermore be observed that each eye is substantially centrally positioned with respect to upper and lower cross members of the heddle frame to which it pertains. Each heddle device to which I hereinafter refer as the heddle is provided with means whereby the movement initiated upon the breaking or fault in a warp end is transferred to the stopping mechanism proper. Preferably for this purpose, I provide each heddle with' an extension or loop 20, which is also preferably of textile material and may be integral or in one piece with the main .portionof the heddle, this result being efie'cted by knotting or tying the heddle at 21 below the

lower cross bar

9 or 11 of the heddle frame, as previously indicated, but with sufficient slackness to permit the lengthwise travel of the heddles about said

cross members

8 and 9. The loops 20 of all the heddlesreceive therein a tube, rod or bar 22 constituting a portion of the stopping mechanism, and to which I shall hereinafter refer in detail. This tube is preferably metallic, inasmuch as, in the preferred embodiment'of my invention, I employ electrical connections to effect the stoppage of the loom.

I desire it to be understood that instead of employing

loops

19, 20, I may utilize any other suitable operating connections between the heddles and the stop rod'22 and that other stopping motion transmitting devices may be substituted for the rod, tube or bar 22. The length of the

loops

19, 20

is such that in the lifting of the heddles in the shedding action, the bar 22 is not disturbed as is evident from a comparison of Figs. 9 and 10. When, however, warp fault occurs, such as warpbreakage and as indicated ate in Fig. 11, then the unbroken warp end (Z of the companion warp ends carrying with it the broken orfaulty end 0 into the elevated position shown in Fig. 11. Thus the broken or faulty warp end is lifted above the plane of the shed in which it occurs and the loop 20 is drawn into the position shown in Fig. 11, thereby lifting the bar 22 from the dotted line position shown in said figure to the full line position, thus operating the stopping instrumentalities and preferably by closing a circuit.

I have thus far assumed that the warp end that is broken is one in the upper plane of the shed. It is evident that if the warp fault or breakage occurs whenv the broken or faulty warp is in the lower plane of the shed, the described movement of the heddle upon its supporting

members

8, 9 occurs whenthe heddle frame thereof is lifted in theshedding operation. In other words,if a warp end breaks when in the lower plane of the shed, such warp end, as soon as it is moved into the upper plane of the shed, is instantly lifted above said plane of said shed, as indicated in Fig. 11. w

The relative arrangementrof the threads passing through the heddles of the various frames depends upon the number of such frames. tion herein illustrated and having reference to the threads as they are introduced into the loom insheet form, the first and third threads are passed through the eyes 18 of one ofthe heddle devices and the second and fourth threads are passed through the. eyes of the other heddle device. The warp ends are distributed through a greater numberof heddles in an obvious manner, not herein necessary more fully to particularize. It is evident that such breakage of warp ends as will prevent the instant initiation of loom stoppage is remote, and that this remoteness increases with the increase in the number of heddle frames. For example, and considering merely the use of two heddle frames, if the two warp ends-which pass through the eyes of the two members of a'single heddle both break and both break precisely simul taneously, then initiation of loom stoppage is not effected, but if both threads of said heddle break, and the breakage of one precedes the breakage of the other by a small fraction of time, such for example as one third of a second in looms running at the rate of one hundred and eighty picks a minute, it is evident that loom stoppage is effected. Thus, it is only in the remote contingency that of all the warp ends in the loom the two threads that break are the two threads of a single heddle and such breakage is absolutely simultaneous, is there failure to initiate loom stoppage. I have demonstrated the fact, and particularly with looms employing a greater number of harnesses, that the chance of failure to initiate loom stoppage is almost infinitesimal. Any suitable means may be employed to effect loom stoppage upon the initiation thereof in the manner described. In the disclosed embodiment of the invention, 1 have represented electrically controlled means peratively connected with the stopping mechanism proper, to which I shall hereinafter refer broadly as the shipper mechanism The harness may be guided in any suitable manner. Preferably I employ means which will support them with capacity for yielding movement toward either side frame of the loom and toward the front or back thereof, the construction being such in the selected embodiment of my invention that the bar 22 partakes of such movements of the harness, so that the relative position of the harness and the said bar is not disturbed or substantially disturbed excepting when warp fault occurs. it will thus be observed that the bar 22 and the set of heddle frames with which the bar cooperates are self contained, all being kept in the same hori- Zontal relation during the operation of the loom. Thus the heddles are free to move toward either side frame of the loom, or toward the front or rear thereof, and in the event of such movementthe bar 22 moves therewith but without any'displacement until warp fault occurs.

1 preferably provide upright metal strips 23, 24 pivoted at 25 in suitable socket pieces 26 secured to the floor, thus permitting said strips to rock toward and from the front or rear of the loom. Said strips are quite highly flexible, and therefore permit lateral movement of the heddle frames. As shown. most clearly in Figs. 2 to 6 inclusive, each of the

strips

23, 24 has secured to its upper end in any suitable manner guide blocks 27, 28, having open-ended slots, as shown in Fig. 6, for the reception of the heddle frames 6 and 7. The said heddle frames are reciprocated through the usual instrumentalities in said guide blocks 27, 28, and the latter are held in proper relation to each other in anysuitable manner, but preferably by readily detachable devices, such as cotter pins 29 inserted through corresponding members 30 of said guide blocks. By removing said cotter pins, the

strips

23, 24 may be separated, thus freeing the heddle frames 6, 7 therefrom. In order to support the stop bar 22, 1 preferably provide suitable terminal boxes represented at 31 in the several figures. These boxes are composed of some suitable insulating material, and are recessed as indicated at 32 to receive the ends of the bar 22, which, if desired, may have the reduced ends 33.

The recess 32 is elongated as represented in Figs. 7 and 8 to permit the cross bar 22 to be elevated upon the occurrence of arp fault as heretofore described. I preferably provide means to effect adjustment of the boxes 31 upon the

strips

23, 24, the adjustment being herein represented as a vertical one. For that purpose I have provided each box 31 with a strip 34 secured by screws 35 and having therein a vertical series of holes or sockets 36, any one of which is adapted to be entered by a pin 37 upon a plate spring 38 resting fiatwise against the

strip

23 or 24 and secured thereby by screws 39. The strip 34 is preferably extended upward, resting flatwise against the upper portion of the

strip

23 or 24 and being held thereagainst by a suitable wire or clip 34, as represented in Figs. 2 to 5 inclusive, into convenient position to be grasped by one hand of the operator for vertical adjustment when the pin 37 is withdrawn from one of the holes 36 to be inserted in another hole of said series.

Each of the boxes 31 receives an end 4040 of a wire 41 constituting part of an electric circuit and preferably each recess 32 is lined or provided with a metallic piece of general inverted V-shape as repre sented in Fig. 7. The said lining piece 42 is connected to the ends 40 of the wire 41 so as together to constitute terminals with which the ends of the rod 22 may contact when lifted upon the occurrence of warp fault.

The circuit of which the wire 41 forms a part is provided with a battery 43 and wire 44 extending to a magnet 45 repesented most clearly in Figs. 12 and 14 and which when energized attracts the armature 46 pivoted at 47 upon a suitable support. The stop bar 22 is connected by a wire 48 to the magnet so that upon the lifting of the bar 22 the circuit is closed and the armature 46 attracted so as to operate the shipper mechanism through any suitable connections.

The loom may be stopped through the action of the described instrumentalities in any suitable manner, but preferably by a shipper device 49 of usual construction. The shipper is held in the usual notch and when released therefrom shifts the belt through the instrumentality of the shipper rod 50 in a manner not necessary more fully 'movement thereon.

to describe. In order that upon the closing of the circuit and the movement of the armature 46 the shipper may be operated, I have herein provided the lay 4 of the loom with a suitable bracket 52 having pivoted thereon a dog 53 having a hooked end 54 which is suitably downwardly pressed by a plate spring 55. The dog 53 moves to and fro with the lay in a fixed path which is at one side of the upturned end 56 of a bar 57. l/Vhen, however, the armature is attracted upon the closing of the circuit, the said upturned end 56 is moved in the direction of the arrow in Fig. 14 to bring it into the path of movement of the dog 53 so that the movement of the lay in the direction of the arrow in Fig. 13 moves said upturned end with it through the engagement of the dog 53. The said upturned end 56 is formed upon a bar 57 having a hooked end 57 to engage and move the shipper, and is also provided with longitudinal slots 58 as shown in Fig. 13, through which pass screws 59,

thereby holding said bar fiatwise against the armature with capacity for limited sliding A coilspring 60 connected to one of the screws 59 and to a hook 61 upon the bar 57 normally holds the said bar in the position indicated in Fig. 13, but upon engagement of the dog 53 with the upturned end 56 the said bar 57 yields. The described lost motion connection of the bar 57 with the armature 46 is provided in this embodiment of the invention because the movement of the lay is greater in extent than the movement necessary to pull the shipper from its notch.

The support for the magnet is provided with a suitable extension or bracket 62 bent at an angle as represented at 63 in Fig. 14 so as to lie below and substantially parallel with a right-angled extension 64 of the bar 57. Ihe said extension 64 is provided with a down-turned or hooked end 65' be effected as described.

Immediately upon the energization of the armature 46 and the engagement of the upturned member 56 with the dog 53 and the consequent movement of the bar'57 in alengthwise direction, the shipper 49 is pulled from its notch and is thereby moved by its spring in the usual manner so as to'move the shipper rod 50 in the direction of the arrow in Fig. 15. The shipper rod in making this movement not only shifts the belt from the fast to the loose pulley, but it passes under and slightly elevates a wire 67 shown as having bent upper and lower ends and loosely mounted in the extension 63, so that when lifted it lifts the extension 64, owing to the loose mounting of the parts, thus releasing its hooked end 65 from the end 66 on the said extension 63. This at once releases the armature from the position in which it is held against the magnet and it is at once returned by its spring 68 into the non-active position shown in Fig. 14, all parts being thus restored to non-active position. Thus upon the lifting of the stop bar 22 the circuit is closed and the armature 46 energized so as to stop the loom and the stopping movement of the shipper rod at once returns the armature to its inactive position, but not until the upturned end 56 of the rod 57 has been engaged by the dog .53 to efiect the release of the shipper.

Any other suitable means whether electrical or mechanical may be provided to operate the shipper mechanism,that is, the loom-stopping mechanism proper,upon the occurrence of warp fault and the described movement of the double heddle device shown in Figs. 9, 10 and 11, and I desire it to be understood that my invention is in no wise restricted to the particular operating means described. Preferably, however, I employ a stop bar, rod or tube such as indicated at 22 and which is adapted to be lifted upon the occurrence of warp fault,that is, either warp breakage or undue slackness, of any of the warp ends.

It will be understood from the foregoing necessity for drawing the warp ends through drop devices in addition to the heddles and in the preferred embodiment of my invention I am enabled to utilize the so-called cotton harnesses which do not chafe or fray the warp ends.

So far as I am aware, I am the first to provide a warp stop motion for looms responsive to warp fault, and wherein a distinct indicating element is not provided for each warp thread or pair of Warp threads.

Having thus, described one illustrative embodiment of my invention, I desire it to be understood that 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 forth in the following claims.

Claims 1. Loomstopping mechanism comprising in combination, a heddle frame having upper and lower crossmembers, a series of double heddle devices of loop form supported upon said cross members for movement thereabout, a member .exterlor to said frame and adapted to be moved by that one of said heddle devices pertaining to a faulty warp end, shipper mechanism and connections from said member thereto.

2. Loom stopping mechanism comprising in combination, a heddle frame having uper and lower cross members, a series of double heddle devices of loop form supported upon said cross members for movement thereabout, a member exterior to said frame and normally at rest during the operation of the loom, but adapted to be moved by that one of said heddle devices pertaining to a faulty warp end, shipper mechanism and connections from said member thereto.

3. Loom stopping mechanism comprising in combination, a heddle frame having up per and lower cross members, a series of double heddle devices of loop form supported upon said cross members for movement thereabout, a transverse bar, extensions from said heddle devices to embrace said bar, thereby to move the latter in the event of thread fault, an electric circuit closed by the moving of said bar, and shipper mechanism operatively actuated by the closing of said circuit.

4. Loom stopping mechanism comprising in combination a heddle frame having upper and lower cross members, a series of double heddle devices of'loop form supported upon said cross members for movement thereabout, a stop device, extensions from said heddle devices to said stop device, thereby to move the latter in the event of thread fault, shipper mechanism and connections from said shipper mechanism to said stop device.

5. Loom stopping mechanism comprising in combination, a heddle frame having upper and lower cross members, a series of double heddle devices of loop form supported upon said cross members for movement thereabout, a stop member, extensions from each of said devices to engage said stop member, and to displace the same in the event of warp fault, and shipper mechanism operatively connected to said member.

6. Loom stopping mechanism comprising in combination, aheddle frame having upper and lower cross members, a series of double heddle devices supported upon said cross members and each having movement thereon to effect the lifting of-one of the parts thereof upon the loweringof the companion part consequent upon fault in the warp end of said elevated part, shipper mechanism, a stop device movable with the heddle frame but spaced from the cross members thereof, said stop device being connected to the heddle devices to be displaced thereby in the event of warp fault, and operative connections between said stop device and said shipper mechanism.

7. Loom stopping mechanism comprising in combinati0n,heddle frames having means to effect the shedding operation, flexible guiding means for said heddle frames, and with respect to which the heddle frames have up and down shedding movement, stop heddles supported by said frames, and shipper mechanism having operative connection to said stop heddles.

8. Loom stopping mechanism comprising in combination a heddle frame having means to impart a shedding movement thereto, flexible guiding means for said heddle frame and with respect to which said frame is reoiprocable in the shedding operation, said guiding means having a suitable support, stop heddles supported by said frame and shipper mechanism having operative connection to said heddles.

9. Loom stopping mechanism comprising in combination a heddle frame having shed forming means connected thereto, flexible guides for said frame permitting movement of the latter toward and from the front and rear of the loom, and with respect to which guides the heddle frame is reciprocable in the shedding movement, shipper mechanism, and means supported by said guiding means and operatively connected to said shipper mechanism to effect loom stoppage in the event of warp fault.

it). Loom stopping mechanism comprising in combination, a heddle frame having shed-forming means connected thereto, stop heddles supported by said heddle frames, flexible guides for said frames permitting movement of the latter toward and from the front and rear of the loom, and with respect to which guides the heddle frame is reciprocable in the shedding movement, shipper mechanism and means intermediate said shipper mechanism and said stop heddles to effect loom stoppage in the event of warp fault.

11. Loom stopping mechanism comprising in combination, a heddle frame, flexible guiding strips therefor between the side frames of the loom, stop heddles supported by said frame, and a cross bar supported by said flexible guiding strips and operatively connected to said stop heddles to be moved thereby in the event of warp fault.

12. Loom stopping mechanism having a heddle frame, flexible guiding strips therefor, and with respect to which strips said heddle frame is reciprocable in the shedding movement, a device mounted in said flexible guiding strips, means actuated upon thread fault to move said device, and shipper mechanism operatively connected to said device.

13. Loom stopping mechanism having a heddle frame, flexible guiding strips therefor, and with respect to which strips said heddle frame is reciprocable in the shedding movement, a stop device adjacent said heddle frame, means actuated uponthread fault to move said stop device, and shipper mechanism operatively connected to said stop device.

14. Loom stopping mechanism comprising in combination, a stop device and supporting holders therefor, heddle frame guiding members, means to connect said holders to said heddle frame guiding members with capacity for adjustment of said holders and shipper mechanism operatively connected to said device.

15. Loom stopping mechanism comprising a heddle frame, a set of heddles supported thereby, and a stop member co-acting with said heddles, each of said heddles having upper and lower two stranded portions, a single stranded eye, and a single stranded loop extending below said frame and engaging said stop member.

16. In a stopping mechanism for looms, the following instrumentalities :-a shipping device, a continuous nonmetallic duplex heddle having warp end receiving formation composed of the same substance, a frame having two cross pieces on which said duplex heddle is slidably mounted, and intermediate connections between said shipping device and said duplex heddle, to actuate the former upon sliding movement of the latter.

17. In a stopping mechanism for looms, the following instrumentalities :a shipping device, a continuous nonmetallic duplex heddle, a frame having two cross pieces on which said duplex heddle is slidably mounted, and intermediate connections between said shipping device and said duplex heddle to actuate the former upon sliding movement of the latter.

18. Loom stopping mechanism comprising in combination a heddle frame having upper and lower cross members, a series of double heddle devices of loop form supported upon said cross members for movement thereabout, a stop member adjacent to said heddle frame, extensions from each of said devices to engage said stop member and to displace the same in the event of warp fault, and shipper mechanism operatively connectedto said member.

19. Loom stopping mechanism comprising a heddle frame, a set of heddles supported thereby and a stop device co-acting with said heddles, each of said heddles having upper and lower two stranded portions, a single stranded eye, and a single stranded loop engaging said stop device.

20. Loom stopping mechanism comprising in combination a heddle frame having upper and lower cross members, a series of duplex heddle devices supported upon said cross members, shipper mechanism, and a single member adjacent but exterior to said heddle frame and also adjacent to said duplex heddles and with which single member the lat ter cooperate to stop the loom.

21. Loom stopping mechanism comprising in combination, a double heddle device consisting of a strand arranged in loop form providing supporting portions at the upper and lower bends of said loop, and having means to receive a pair of warp ends, shipper mechanism and operative connections between said heddle device and said shipper mechanism. 7

22. Loom stopping mechanism comprising in combination, a double heddle deviceconsisting of a strand arranged in loop form providing supporting portions at theupper and lower bends of said loop, and having means having formations to receive two warp threads, shipper mechanism, and means responsive to fault in either warp thread to operate said shipper mechanism to stop the loom.

23. Loom stopping mechanism comprising in combination, a heddle frame having upper and'lower cross members, a series of double heddle devices of loop form supported upon said cross members for movement thereabout, shipper mechanism, and operative connections between said shipper mechanism and each of said heddle devices to operate the shipper mechanism in the event of thread fault.

J 24;. Loom stopping mechanism comprising in combination, a heddle frame having upper and lower cross members, a series of double heddle devices of loop form supported upon said cross members for movement thereabout, shipper mechanism, and electrically operated connections between said heddle devices and the shipper mechanism to stop the loom in the event of warp breakage.

25. Loom stopping mechanism comprising in combination, a heddle frame having upper and lower cross members, a series of double heddle devices of loop form supported upon said cross members for movement thereabout, a member adapted to be lifted by that one of said heddle devices pertaining to a faulty warp end, shipper mechanism and connections from said member thereto.

26. Loom stopping mechanism comprising in combination, a heddle frame having upper and lower cross members, a series of double heddle devices of loop form supported upon said cross members for movement thereabout, a bar adapted to be lifted by that one of said heddle devices pertaining to a broken warp end, shipper mechanism, and connections between the same and said bar. e

27. Loom stopping mechanism comprising in combination, a heddle frame having upper andflower cross members, a series of double heddle devices of loop form supported upon said cross members for movement thereabout, a bar adapted to be lifted by that one of said heddle devices pertaining to a faulty warp end, an electric circuit adapted to be closed by the lifting of the said bar, andshipper mechanism operatively connected to said circuit.

28. Loom stopping mechanism comprising in combination, a heddle frame having upper and lower cross members, a series of double heddle devices of loop form supported upon said cross members for movement thereabout, a transverse bar, extensions from said heddle devices to embrace said bar, thereby to lift the latter in the event of thread fault, an electric circuit closed by the lifting of said bar, and shipper mechanism operatively actuated by the closing of said circuit.

29. Loom stopping mechanism comprising in combination, a heddle frame having upper and lower cross members, a series of double heddle devices of loop form supported upon said cross members for movement thereahout, each of said heddle devices having a looped, lower extension, a bar positioned in said looped extensions to be displaced by movement of a heddle device about said cross members, and shipper mechanism actuated upon displacement of said bar.

30. Loom stopping mechanism comprising in combination, a heddle frame having upper and lower cross members, a series of double heddle devices of loop form supported upon said cross members for movement thereabout, a cross bar, extensions from each of said devices to engage said cross bar and to displace the same in the event of warp fault, and shipper mechanism operatively connected to said bar.

31. Loom stopping mechanism compris ing in combination, a heddle frame having upper and lower cross members, a series of double heddle devices of loop form supported upon said cross members for movement thereabout, a cross bar, extensions from each of said devices to engage said cross bar and to displace the same in the event of warp fault, an electric circuit adapted to be affected by the displacement of said bar, and shipper mechanism adapted to be operated upon change in said electric circuit.

32. Loom stopping mechanism comprising in combination, a' heddle frame having upper and lower cross members, a series of double heddle devices of loop form supported upon said cross members for movement thereabout, each member of each double heddle device having a Warp end receiving eye, shipper mechanism, and operative connections to the shipper mechanism rendered active'upon the lifting of that member of a double heddle device 'having a faulty warp end.

83. Loom stopping mechanism comprising in combination, a heddle frame having upper and lower cross members, a series of double heddle devices of loop form supported upon said cross members for movement thereabout, each member of each double heddle device having a warp end receiving eye, shipper mechanism and operative connections to the shipper mechanism rendered active upon the lifting of that member of a double heddle device having a faulty warp end, and to depress the companion member of said double heddle device through the action of its unbroken warp end.

34:. Loom stopping mechanism comprising in combination, a heddle frame having upper and lower cross members, a series of double heddle devices supported upon said cross members and having movement thereon to effect the lifting of one of said members upon the lowering of the companion member consequent upon fault in the warp end of said elevated member, shipper mechanism, a bar extending transversely of the loom and connected to said heddle devices to be lifted upon the event of warp fault, and operative connections between said bar and said shipper mechanism.

35. Loom stopping mechanism comprising in combination, a heddle frame, guiding means therefor between the side frames of the loom and independent thereof, and with respect to which said frame is reciprocable in the shedding movement, heddles supported by said frame, shipper mechanism, and operative connections between said heddles and shipper mechanism to stop the loom in the event of warp fault.

36. Loom stopping mechanism comprising in combination, a heddle frame, guiding means therefor between and independent of the side frames of the loom and extending upwardly from the floor, and with respect to which said frame is reciprocable in the shedding movement, stop heddles supported by said heddle frame, and shipper mechanism actuated from said stop heddles in the event of warp fault.

37. Loom stopping mechanism comprising heddle frames having means to effect the shedding operation, flexible guiding means for said heddle frame extending upward from the floor, and with respect to which said frames are reciprocable in the shedding movement, stop heddles supported by said frame, and shipper mechanism having operative connections to said stop heddles.

38. Loom stopping mechanism comprising in combination, a heddle frame having shed forming means connected thereto, flexible guides for said frame permitting movement of the latter toward and from either side frame of the loom and toward the front and rear of the loom, and with respect to which said frame is reciprocable in the shedding movement, shipper mechanism, and means supported by said guiding means and operatively connected to said shipper mechanism to effect loom stoppage in the event of fault.

39. Loom stopping mechanism comprising in combination, a heddle frame, flexible guiding strips therefor extending upward from the floor between the'side frames of the for, a stop bar mounted in said flexible guiding strips, means actuated upon thread fault to move said stop bar, and'shipper mechanism operatively connected. to the stop bar.

41. Loom stopping mechanism comprising a stop bar and supporting holders therefor, heddle guiding members, means to connect said holders to said heddle guiding members with capacity for adjustment of said holders, and shipper mechanism operatively connected to said bar. I v 42. Loom stopping mechanism comprising a stop bar arranged transversely'of the loom, supporting boxes receiving the ends of said bar, a heddle, upright guiding strips there for; between and distinct from the side frames of the loom, means to connect said boxes. and strips With capacity for vertical adjustment of the boxes, and stopdevices op'eratively connected to said bar. v

43. Loom stopping mechanism comprising a stop bar arranged transversely of the loom, supporting boxes receiving the ends of said bar, a heddle frame, upright guiding strips therefor between and distinct from the side frames of the loo'm, means to connect said boxes and strips With capacity for vertical bar adapted to be displaced in the event of Warp fault, end supporting boxes therefor, an electric circuit connected to said boxes,

a heddle frame, guides therefor,;me'ans adjustably to connect said boxes to said guides, a shipper, and operative connec'tions'betvveen the bar and shipper. Y

45. Loom stopping mechanism comprising a shipper With means to hold the same in loom operating position, an electric circuit having an armature adapted to' be energized upon thread fault, a lay having a projection, a member having means operatively to engage the shipper and moved by said armature into the path of movement of said projection, said member having a holding extension and a fixed part w th which Warp said holding extension engages, to hold said member in the path ofthe projection until engaged thereby.

46.. Loom stopping mechanism comprising a shipper With means to hold the same in loom operating position, an electric circuit having an armature adapted to be energized upon thread fault, a lay having afprojection, a member having means operatively to engage the shipper and moved by said armature into the path of movement of said pro-.

jection, said member having a holding extension and a fixed part .With which said holding extension engages to hold said member in the path of the projection until en.-

gaged thereby, and means to release said holding member upon'stopping movement of the shipper.

47. In a loom. a set of heddle frames, a set of heddles hung upon a cross member there'- of, each heddle being formed of a flexible, twisted texture 1n loop form, and movable about said cross member, said heddle having eyes formed from saidmaterial and permit- I per and lower cross members, a series'of, double heddle devices consisting of strands in; loop form, portionso'f said strands being received upon said cross members for move? ment thereabout, a stop'memberadapted to,

in combination, a heddlev frame having upbe moved by that one of-said'heddle devices pertaining to a faulty Warp end, shipper mechanism, and connections from said'stop member thereto. v

49. In a loom, a set of heddle frames. bed-- dles hung to the top and bottom cross members of said frames, said heddles being formed of flexible twine in loop form and movable about said cross members, said heddles having elongated eyes for the Warp ends, in combination with means co-acting ith said heddles to stop theloom upon the undue slackening or breakage of any of the Warp ends.

' 50. Loom stopping mechanism includinga heddle in loop form for support upon and movement about cross members of the heddle'frame, said heddle having a pair of var.- nished, elongated eyes for thepassage of Warp ends, and means cooperating With said heddle to stop the loom upon the occurrence of faultin an end passing through either of said eyes; 7 g

51. Loom stopping mechanism comprising in combination, shipper mechanismga lied dle frame, having cross'members, 'afheddle of loop form mounted upon and movable about said cross members, said heddle having a pair of eyes for the reception ofjwarp ends, said eyes being formedof a soft texture, two strands of the heddle leading from the lower cross member of the heddle frame and two strands leading from the upper cross member thereof and uniting to form a knotless eye substantially in the center of said frame, and operative connections between said heddle and the shipper mechanism to stop the loom when the eye is released by the undue slackening or breaking of a warp end. I

52. Loom stopping mechanism including a heddle frame, having upper and lower cross members, a heddle composed of a strand of loop form, mounted upon and movable about said cross members, said heddle having an eye separated from the body of the heddle by two half knots, and means co-acting with said heddle to stop the loom in the event of warp fault.

53. In a loom, a heddle frame, a heddle device mounted therein to operate a plural; ity of warp ends, a member exterior to said heddle frame, shipper mechanism, operative connections between said member and said shipper mechanism and connections between said member and said heddle device and positively operated by the heddle device in the event of warp fault, to stop the loom through the instrumentality of said shipper mechanism.

54. In a loom, a heddle frame, a heddle device mounted therein to operate a plurality of warp ends. a member exterior to said heddle frame, shipper mechanism, operative connections between said member and said shipper mechanism, and connections between said memberand said heddle device and operated by pos tive lifting movement of a portion of said heddle device, in the e ent of warp fault, to stop the loom through the instrumentality of said shipper mechanism.

In a loom. a heddle frame. a duplex heddle device mounted therein and having two members each adapted to receive a warp end. a stopping instrumentalitv exterior to sa d heddle frame and a flexible connection between said instrumentality and said heddle device, and operated by the la ter through the instrumentality of an unbroken warp, in the event of fault in the companion and heddles.

57. Loom stopping mechanism comprising a heddle frame, a set of heddles supported thereby, and a stop rod co-acting with said heddles, each of said heddles having upper and lower, two-stranded portions, a Single stranded eye and a single stranded loop extending below said frame and about said rod.

58. In a loop stopping mechanism, a heddle frame, a set of heddles having eyes for the reception of warp ends, and mounted upon said heddle frame in two series, corresponding members of said heddles being connected for movement in opposite directions, a movable member adjacent to said heddles and with which the latter conjointly cooperate, said member being exterior to the heddle frame buthaving movement with the heddle frame and shipper mechanism operatively connected to said member and actuated by movement of the latter.

59. In a loomrstopping mechanism, a set of duplex heddles having eyes for the reception of a series of warp ends, a heddle framewherein said heddles are mounted, a movable member adjacent to said duplex heddles and with which the latter conjointly cooperate, provisions for preventing relative movement of said heddle frame and member during the normal operation of the loom and shipper mechanism operatively connected to said member and actuated by movement of the latter.

60. In a loom stopping mechanism, a duplex heddle having eyes for the reception of warp ends and of non-metallic material throughout, the members of said heddle being simultaneously movable in opposite directions, a member adjacent to said heddle and with which the latter cooperates, and shipper mechanism operatively connected to said member,to sto the loom.

61. In a loom stopping mechanism, a heddle composed throughout of non-metallic material looped to form a heddle body and eye, shedding connections to operate said heddle in a vertical plane, a secondary member normally at rest, connecting means between said heddle and member to actuate the latter in the event of warp fault and shipper mechanism to which said member is operatively connected.

62. In a loom stopping mechanism. a nonmetallic, one-substance heddle having an opening for the reception of a single warp end, a heddle frame whereon said heddle is mounted, means for imparting upward movement to said heddle upon release by said warp end, a secondary device exterior to said heddle frame and mechanically operated upon by said heddle in the event of warp fault, shedding mechanism supporting said heddle and means to stop the operation of said mechanism in the event of fault in said warp end. 7

63. In a stopping mechanism for looms. a set of duplex heddles of loop form and having knotless openings for the reception of warp ends, said heddles being composed throughout of textile material, a single secondary device operatively connected to said heddles and actuated by upward movement of a heddle opening pertaining to afaulty warp end, shedding mechanism supporting said heddles and cooperating means to stop said shedding mechanism upon warp fault pertaining to said heddles.

64. In a stopping mechanism for looms, a set of duplex heddles of loop form and having knotless openings for the reception of warp ends, said heddles being'composed throughout of textile material, a single sec ondary device consisting of a hollow rod having indicating ends, said rod being operatively connected to said heddles, and actuated by upward movement of a heddle opening pertaining to a faulty warp end, shedding mechanism supporting said heddies, and cooperating means to stop said shedding mechanism upon warp fault pertaining to said heddles.

65. Loom stopping mechanism comprising a shipper with means to hold the same in loom operating position, an electric circuit having an armature adapted to be energized upon thread fault, a lay having a projection,

a member carried by the armature; and

moved thereby into the path of said projection, and having means operatively to 'engage the shipper, said member'having holding means with which said holding means cooperates to effect the holding of said member in the path of said projection.

66. Loom stopping mechanismcomprising in combination, a heddle frame having upperand lower cross members, a series of double heddle devices supported upon said cross members and each having movement thereon to effect the lifting of one of the parts thereof upon the lowering of the companion part consequent upon fault in the warp end of said elevated part, shipper mechanism, a hollow rod connected tosaid heddle devices to be displaced upon the event of warp fault, and operative connections between said rod and said shipper mechanism. i

67. Loom stopping mechanism comprising in combination, a heddle frame having upand supported by' said: flexible guiding per and lower cross members, a series of double heddle devices of loop form supported upon said cross members for movement thereabout, a hollow rod exterior to a said frame and adapted to be moved by that one of said heddle devices pertaining to a faulty warp end, shippermechanism and"v connections from said rod thereto.

68. Loom stopping mechanism comprising in comb nation, a heddle frame having upper and lower cross members, a series of double heddle devices of loop form supported upon said cross members for movement means, and adapted to be moved by that one of said heddle devices pertaining to a faulty warp end, shipper mechanism and connections from said member thereto.

69; Loom stopping mechanism comprising in combination, a heddle frame having upterior to said frame and supported by said flexible guiding. means, and adapted to be moved by that one of said heddle devices pertaining to a faulty warp .end, shipper mechanism, and connections from said member thereto; 7

7 O. A loom stopping mechanism comprising a heddle frame having. cross members, heddles mounted thereonfor shifting movement and having eyes for the reception of warp ends, saideyes making a shifting in position when released by either warp end, a stop device and flexible means passing freely about said device to displace the latter when said eyes shift intostopping position.

71. In a loom,'ashedding mechanism, a heddle frame having a series of heddles formed with eyes for thereceptionof warp ends and mounted'in said heddle frame to shift vertically when released by said warp ends, connections between said shedding.

mechanism and said heddle frames to operadapted to be shifted into upper and lower positions, a harness frame in which said heddles are mounted for such shifting movement, and means to shift said frame, a device exterior of said frame forming part of i a stopping mechanism operatively connected to said heddles, the latter when released by a faulty warp end actuating the former to stop the shifting of said harness frame.

heddle frame having a series of heddles formed with eyes for the reception of warp ends and mounted in the heddle frame to shift vertically when released by said warp ends, connections between said shedding mechanism and said heddle frames to opera .115 .73.. In a loom, a shedding mechanism, a-

ate the latter to form successive sheds, com

heddles, and positivelv moved therebvupon warp fault tostop said shedding mechanism. 7

74. In' a loom, a heddle fr ame, a duplex, heddledevicev mounted therein having shedding two members each adapted to receive a warp end, a stopping instrumentallty, and a flexible direct connection between said instrumentality and said heddle device operated by the latter through the instrumentality of an unbroken warp, in the event of fault in the companion warp.

75. In a loom, a heddle frame, a plurality of duplex heddle devices mounted therein, each of said heddle devices having two mem bers, each of which members is adapted to receive a warp end, a stopping instrumentality exterior to said heddle frame, and a separate flexible connection from each heddle device to .said stopping instrumentality and operated by the former through the instrumentality of an unbroken warp in the event of fault in the companion warp.

76. In a loom, a heddle frame, a plurality of duplex heddle devices mounted therein, each of said heddle devices having two members, each of which members is adapted to receive a warp end, a stopping instrumentality and a separate flexible connection from each heddle device to said stopping instrumentality and operated by the former through the instrumentality of an unbroken warp, in the event of fault in the companion warp. V

77. In a loom, a heddle frame, a duplex heddle mounted thereon and having two members, each adapted to receive a warp end, a stopping instrumentality exterior to said heddle frame, an extension from said heddle to said instrumentality and means for imparting positive movement to said extension and thereby to operate said instrumentality in the event of warp fault.

78. In a loom, a heddle frame, a duplex heddle mounted therein and having two members each adapted to receive a warp end, a stopping instrumentality exterior to said heddle frame, an extension from said heddle to said instrumentality, said extension being directly connected both to the heddle and to said stopping instrumentality, and means for imparting positive movement to said extension and thereby to operate said instrumentality in the event of warp fault.

7 9. In a loom, a heddle frame having a connection, a duplex heddle mounted in said frame and having two members each adapted to receive a warp end, a stopping instrumentality exterior to said frame, and an operating connection between said duplex heddle and said instrumentality that permits the heddle frame to rise and fall in the shedding operation without operation of said instrumentality except upon the occurrence of warp fault in one of said ends. I i

80. In a loom, a heddle frame, a heddle mounted therein, a stopping instrumentality exterior to said frame, and a direct flexible connection between said heddle and said stopping instrumentality and acting to operate said instrumentality through the tension of an unbroken warp in the event of warp fault in the opposite plane of the shed.

81. In a loom, a heddle frame, a duplex heddle mounted therein and having two members each adapted to receive a warp end, a stopping instrumentality exterior to said heddle frame, a flexible looped extension from said heddle to and about said instrumentality and means for imparting posi- 'tive movement to said extension and thereby to operate said instrumentality in the event of warp fault.

82. Loom stopping mechanism comprising a shipper, means to hold thesame in loomoperating position, a lay having a loomstopping projection, a member adapted to be moved into the path of said projection in the event of warp fault,- a device 57 to engage the shipper and operatively connected to said member, and means having a lost motion connection directly with said device for controlling the movement of said member. v

83. Loom stopping mechanism comprising a shipper, means to hold the same in loom-operating position, a lay having a loom-stopping projection, a member adapted to be moved into the path of said projection in the event of warp fault, a device to engage the shipper and operatively connected to said member, and an armature having a limited sliding connection along with said device for controlling the movement of said member.

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

RANDOLPH CROMPTON.

Witnesses:

J OI-IN R. MonL'roN, IRVING U. TOWNSEND.

tiopies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. C.