US1364092A

US1364092A - Textile-machine

Info

Publication number: US1364092A
Application number: US834607A
Authority: US
Inventors: Millard F Field
Original assignee: Barber Colman Co
Current assignee: Barber Colman Co
Priority date: 1914-04-27
Filing date: 1914-04-27
Publication date: 1921-01-04
Anticipated expiration: 1938-01-04

Description

M. F. FIELD.y

TEXTILE MACHINE. A'PPLICA-TION FILED APR. 27| 1914.

Patented Jan. 4, 1921.

8 SHEETS-SHEEI l.

"mi I Illlllllil uumuwa f M. was'. TEXTILE MACHINE.

APPLICATION FILED ^PR.27| ISI4..

8 SHEETS-SHEET 2.

L01 SO; M

Patented- Jan. 4, 1921-.

M. vF. HELD, TEXTILE MACHINE.

APPLICATION FILED APR. 2l, I9I4.

l j 1,364,092. Patented Jan. 4, 1921.

a saisis-sneer :L

/ i linzen-arf MmrdRFieLd,

" 'witwasses M. F. FIELD.

TEXTILE MACHINE.

APPLICATION FILED APR. 21, |914.

,1, :.30645092; Patented Jan. 4, 1912.1. v

8 SHEETS-SHEET 4.

I T /w /3/ n a-mwwn M. Fv. FIELD, 'TEXTILE nuclmqf. APILI( IATI0I| FILED API. 2l. ISH.

Patented Jan. 4, 1921.

. 4'.ljwf m l L@ @um m wwf ,H .TM/ 1m@ L n a a. y ,39 hm. @www ,6. m .my KN NM1 v ...mw

M. F. FIELD.

TEXTILE MACHINE.v

APPLICATION man muzi.. tsl-4 yPatented Jan. 4, 1921.

8 SHEETS-SHEET 6.

ZIillardFlf-i/eld,

M. F. FIELD. TEXTILE MACHINE. l y nrPLscmon Ami un. 21. |914. 1,364,G92. Patented Jan. 4,1921. e snEETs-snser 7.

1 wa'i'n 6.51255 M. F. FIELD. TEXTILE'MACHINE. APP-memo. mib APR. 21. 1914.

1,364,092.' I l Patentbd Jan'. 4,1921.

8 SHEETS-SHEET 8- Acitizen of the United States,

parts.

UNITED STATES PATENT OFFICE.

MILLARI) F. FIELD, OF WINTHROI, MASSACHUSETTS, ASSIGNOR, BY MESNE ASSIGN- MENTS, TO BARBER-COLMAN COMPANY,

TION OF ILLINOIS,

l i Application led April 27,

To all whom t may concer/n v Be it known that I, MILLARD F. FIELD, a

of Winthrop, county of Suffolk, State of Massachusetts, (whose post-oliice address is 195 Freeport street, Dorchester, Massachusetts) have invented Improvements in Textile-Machines, of which the following description, in connection with the accompanying drawings, is a specification, like characters on the drawings representing like This invention relates to textile machines, the specific embodiment by which the same is herein illustrated consistin of an attachment or mechanism embo ied in or combined with a Slasher and serving in its relation thereto both a thread-fault detecting function and a warp leasing function.

While the invention has marked advantage as applied to a slasher, theI improvements herein described have features of novelty and utility both with, reference to the leasing function and the thread-fault detecting function which are of broad and general application to other uses and other relations than the specific ones herein disclosed.

I-Iaving reference first to the leasing function of the disclosed apparatus, the yarnsor threads when passed through the slasher are taken from a` number of different thread sources, as, for example, a number of section beams or rolls, and, after being sized and dried, are wound in the required order upon the warp beam. From the same set ofsection beams a succession of loom beams is prepared. This involves cutting 0E the yarns as each loom beam is filled.

To avoid the trouble and loss of time heretofore consequent on the striking of a lease, this invention contemplates the provision of leasing means which so engage the individual threads leading to the loom beam that. the latter are under a positive leasing control at all times.' Preferablythe threads are controlled in sets, each set by a leasing member, whereby the relative movement of the leasing :members may be caused at any time to strike a lease. This permits the same leasing control to be maintained over the thread coming from the thread sources so that leases can ybe successively struck, leasing cords or other devices inserted and a lease left at the end of each Spgecication of Letters Patent.

and a resident by a slowing down threads.

OF ROCKFORD, ILLINOIS, A CORPORA- TEXTILE-MACHINE.

Patented Jan. 4, 1921.

1914. serial No. 834,607.

warp on the loom beam after the threads have been cut, while the leasing means are still maintained in leasing control over the balance of the warp supply and the lease may be obtained for the next beam. Such leasing control is particularly applicable to a Slasher but it may be usefully employed in other connections, as for example where a series of consecutive warp beams or rolls yare required to be wound from the same thread sources and a lease struck or preserved for each successive roll or beam.

In the illustrated form of the invention the devices which are employed to preserve the leasedvearrangement of the thread supply are in the form of drop heddles arranged in separate banks or harnesses and capable of relative movement to form the lease. The same devices' are also employed as thread fault detectors to detect a broken or faulty thread coming from the thread sources. Since it is undesirable completely to stop a Slasher for any length of time, herein the detection of a faulty thread is accompanied of the operation of the machine to a sutliciently slow rate to permit the operative to correct the thread fault, but devices similar to those disclosed may be employed in stop motions.

The apparatus, either with or without its capacity to strike a lease, has novelty and utility as a thread-fault-detecting mechanism, not only in connection with a slasher but in connection chinery and particularly where it is required to operate upon unsized threads or threads moving at relatively high rates of speed. In the loom the travel. of the warp rarely exceeds a. few inches per minute, but in a Slasher the travel is ordinarily at the rate of many yards periminute. Furthermore the warp threads in the loom4 are sized and thereby protected against abrasion, whereas the yarn as it leaves the section beams is unsized. Threads which are run at high rates of speed as compared with the travel of the threads in a loom and threads which are unsized pairment through friction-caused abrasion when controlled by the ordinary warp stop motion detectors which hang suspended in permanent supported engagement upon the In the present thread-fault-detecting mechanism feeling means is provided which is caused intermittently to feelfor the with other textile ma` ative relation to the detecting mechanism,

this being herein accomplished by lifting the particular detector in question so that. it is supported by the remaining detectors of the bank or series and is moved therewith. In this relation it is no longer operative to actuate the detector-responsive mechanism of the machine in case of a thread fault.

In the present tion, furthermore, control motion for a novel detector-actuated the machine is employed which may be usefully applied to loomv stop'v motions or other control devices operated by thread-fault finding means. In the control motion herein illustrated the machine is slowed down from a high rate of speed to aA relatively slow rate by devices which work instantly upon the detection of a thread fault and without being dependent, as in the ordinary stop motion of a loom, upon the subsequentr movement of some other regularly movable part of the machine. This provides for the instant control of the machine responsive to a thread fault, whereas stop motions of the prior art have depended upon bringing into the path of some moving part of member. This causes the lapse of an interval between the dropping of the detector and stoppage or control of(y the machine during which the machine may move through a large ,part of its operative cycle. l

It will bel observed that many of the features which I have herein shown in combination are novel and patentable in and of themselves as well as in other relations than those herein disclosed; also that the apparatus herein disclosed is capable of wide and general application apart from the peculiar advantage which accompanies its use-herein. The invention will be best understood by reference to the following description when .taken 1n connection with the accompanying illustration of one specific embodiment thereof, while its s cope will be more particularly pointedout in the appended claims.

In the drawings:

Figure 1 is a vertical, front elevation of a combined leasing and thread-fault-detecting mechanism embodying one form of my invention;

Fig. 2 1s an end elevation taken in section yon the line 2-2 in Fig. 1, showing the position of the detectors in said mechanism;

or placed in inoperthread shown in embodiment of the inventhe machine a detector actuated- Fig. 2i is a detail in elevation showing the slotted chain guide;

Fig. 3 shows in end elevation the mechanism ofFig. 1;

Fig. 3a is a detail in side elevation showin the shape of the detector actuating cams;

ig. 4 is a detail in side elevation showing the driving gearing for the feeling devices;

Fig. 5 shows a detector in its raised, inoperative position where` it is supported upon the catch bar;

Fig. 6 shows a detector in operative position and in -its depressed or feeling relation to a thread;

Fig. 7 shows the full length of the detector in front elevation; A

Fig. 8 shows a series of the detectors in side elevation in the same relation to the Fig. 6;

Fig. 9 shows a detector in operative position but raised by its Stringer bar outof g feeling relation to the thread;

Fig. 10 shows a detector which has been dropped through the absence of a thread upon an underlying contact device;

Fig. 11 shows in side elevation one end of a Slasher with the detector and leasing mechanism operatively related thereto;

Fig. 12 shows in elevation the opposite end of the- Slasher being in effect an extension or continuation of the view'shown in Fig. 11;

Fig. 13 is a detail shifter mechanism;

Fig. 14 is an enlarged detail in plan showing the-automatic release mechanism for the belt-shifting lever;`

Fig. 15 is a side elevation of the mechanism 'shown in Fig. 14;

Fig. 16 is an elevation in detail and partial section showing the electrically controlled release for in Fig. 14;

Fig. 17 is a sectional front elevation on the line 17-17 in Fig. 16;

Fig. 18 is a transverse taken on the line 18-18 in Fig. 16;

Fig. 19 is a transverse section in plan taken on the line 19-19 in Fig. 16; and

Fig. 20 is a diagrammatic view showing the connections controlled by the detectors.

Referring to the embodiment of the invention which is submitted for illustrative pursection i in plan the belt shifter illustrated l poses, and first toy Figs. 11 and 12, the leasto the part of the slasher shown in Fig. 12 over various guide rollers and other thread-engaging devices, which are conventionally represented in Fig. 12. From the section beams 5 (only one of which is shown) the threads pass through sizing apparatus, including the size pot 6 and rollers 7, and thence to and about the drying cylinder 4. The usual driving mechanism for the various parts is provided, the parts necessary for an understanding of the present invention only being shown.

The machine is driven from any suitable source of power, herein by the main drive belt 10 (Fig. 12) which passes over the driving pulley 11 mounted on the drive shaft 12. The latter is belted to drive the shaft 13, the latter in turn being geared to drive the shaft 14 through which the loom beam is turned by appropriate gearing. The shaft 14 carries a beveled gear 15 meshing with a second gear 16, the latter mounted upon the longitudinal. transmission shaft 17 at the opposite end of Awhich is the beveled pinion 18 meshing with the geail 19 and adapted to drive the lower size rollers 7 through appropriate gearing.

Owing to the size pots through which the threads pass and the undesirability of completely stopping the machine on the occurrence of a thread fault, means are provided whereby the speed of the machine may be reduced under such circumstances and the yarns drawn very slowly through the machine, giving the operative opportunity to repair the thread fault if possible 'while at the same time preventing the gumming of the yarns, which might follow the complete stoppage of the machine. Any appropriate means to stop or slow down the speed of the machine may be employed, but herein the belt 10 is capable of being shifted to the loose pulley 20 to stop the machine, or to an intermediate pulley 21, the latter being connected to the drive shaft 12 by any suitable speed reduction means to give a relatively slow speed to the machine upon the occurrence of a thread fault.

The belt shifter may the belt to either one of the three pulleys referred to by means of the hand lever 2,2, pivoted at 23, automatically controlled shifting mechanism being also provided, as will be later described. To control the belt through the'lever 22 the belt is engaged by the forked belt shipper 24 carried by the slide rod 25, the latter adapted to be 'moved by the lever arm 26. The lever arm 26 is connected to the upright rock shaft 27, the latter having the rock arm 28 provided with the jointed connection 29 to the hand lever 22.

While the thread-fault detectingand leasing mechanism might be located in other as for example, be-

relations to the slasher,

cylinder and the tween the steam-heated warp threads.

be moved to shift loom beam, herein it is interposed betvv een the sizing apparatus and the section rolls, as is represented in Fig. 11, the several warp sections passing directly from the section rolls to and through the heddles of the leasinor and detecting apparatus.

eferring more particularly to Figs. 1, 2 and 3, the heddles 30 are arranged in harness formation in-a plurality 'of series or banks, herein four, each bank being suspended upon its stringer bar 31 which lies transversely the direction of travel of the Any suitable supporting structure may be provided, but herein the supporting pedestals 1 carry at their tops the upright tubular supports 32, 32, the latter supporting'the lower cross plates 33. 33, between which and corresponding

upper cross plates

34, 34, are clamped the transverse tubular members 35 (herein five in number.) The latter not only serve as transverse supports for the overhead supporting frame, but also act as underlying guide supports for the warp threads 3, as represented in Fig. 2, the tubular members being separated sufficiently to allow the several respective sets of heddles or feelers 3() to have a working adjacent tubes, as shown in Fig. 2. The

members 35 also serve to guide or hold the heddles 30 against being dragged laterally out of their proper positions when in contact with the swiftly moving threads.

At their opposite ends where they overhang the cross piece 33, the tubular members 35 are secured to and support'the end frame members 36, the latter connected by the overhead, longitudinal supporting tubular member 37. The latter has secured thereto a pair of depending hanger Irods 38, carrying hanger brackets 39, the latter provided with vforked arms 40 in the ends of which are journaled the four guiding sheaves 41-41, etc., overwhich pass supporting chains 42, a pair of sprocket chains and guide sheaves being provided for each stringer bar 31 and the chains being connected to opposite ends of their respective bars. The hanger brackets 39 also carry fixed, depending separating members '43 which are located between the stringer bars 31 to prevent lateral displacement of the bars and heddles in catory movements. The sprocket chains 42 are caused to pass through a slotted guiding plate 44 (Fig. 2a) secured to a depending their vertical, reciprohanger rod 45 attached to the mid portion of the heddles by cam shaft so is connected to a hook 50, the shank 51 of which passes between the two arms 52 of a bifurcated actuating lever 53,`and is held in fixed relation thereto under the weight a stop collar 54 which has threaded adjustment on the shank 5l of the hook. The levers 53 are pivoted at 5.5 on the frame member36, being given each an oscillatory lmovement between the two extreme positions shown in Fig. 1 by suitable driving mechanism.

For this purpose each lever 53 has a depending arm 56 which carries a roll 57 held pressed by the weight of the detectors against the face of a cam 58. The four cams are fixed upon the cam shaft 59 and have each the shape indicated in Fig. 3, such that, at each revolution of the cam shaft, the depression 60 on the face of the cam allows the inward movement of the roller and causes an oscillatory movement ofthe corresponding actuating lever 53. The cams are preferably adjusted upon the thatI the depressions 60 occur ninety degrees apart. The result is that the feelers are normally held in elevated position as indicated by the three banks or sets at the left in Fig. 2, with their detectors out of supported engagement with the threads, but at each quarter revolution of the cam shaft one bank is momentarily lowered to cause each detector thereof to feel for its thread, the entire series being immediately thereafter kraised and there held suspended untilthe cam shaft has completed another revolution.

The mechanism for raising and lowering the detectors is preferably driven from or with the driving mechanism for the Slasher. Herein, also for the purpose of striking the lease,

the several sets of detectors may be moved to the same level and from that position may each be -independently moved to strike'the lease.

For this purpose driving movement is imparted to the cam shaft by means of the ratchet 61 (Fig. 4) which is turned through the spring-pressed pawl 62 carried on the face of the worm ear 63, the latter being rotatable indepenfent of the cam shaft (Fi s. l, 3 and 4). The worm gear is turned inl t e direction of the arrow shown in Fig. 4 by means of the worm 64 carried on the end of the driving shaft 65, the latter eX- tending across the machine and at the opposite end thereof having the driving pulley 66 to which driving movement is imparted by means of the driving belt 67 (see Fig. 11) driven-from a pulley 68 on the shaft for the Vsize-roll his causes a steady rotation of the cam shaft proportional to the yspeed of the Slasher. By propmeans are provided whereby, .and apart from the slasher driving mechanism,`

erly proportioning the driving pulleys the actual speed of the c am shaft may be varied to suit the character of the yarn or other conditions, but for ordinary purposes the intermittent feeling 4movement imparted to the detectors may be comparatively slow and infrequent. v

In order to strike the lease, the cam shaft may be turned independently of the pawl to raise the several sets of detectors to the same level and from this level each detector set, constituting as it does a leasing member, may be independently moved to strike the lease. For this purpose the cam shaft has fixed at its end the hand wheel 70 and it may also be operated' from the other end of the machine by the hand wheel 71 connected to turn the cam shaft by the intermediate sprocket chain 72. If one of the sets of detectors is left depressed as indicated in Fig. 1, the hand wheel 70 or 71 may be turned until that set of detectors is raised.

Any one or more of the sets of detectors may be independently and further raised with relation to the remaining sets by temporarily shortening the connection of the supporting chains 42 to their respective actuating levers 53. For this purpose each shank 5l is provided with a second stop collar 72 (Fig. 1) at a point between the hook 5() and the outerstop collar 55. When desired, the shank may be manually lifted out from between the bifurcated arms 52, pulled back, and again slipped down between the arms and caused to support the detectors through the stop collar 72, thus leaving that particular set of detectors at a higher level. To facilitate this manipulation of the detectors the projecting end of each shank 51 is provided with a device such as the ball 73 threaded thereon, which may be readily grasped by the hand of the operator.

eferring now more particularly to Figs. 5 to 10, while detector or feeling members of variousother formsmight be employed, herein they are in the form of flat, thin, sheet-steel members resembling in their general construction the ordinary drop heddles or .drop wires lof warp stop motions. Each heddle is provided at its upper end with an elongated supporting slot 74 through which the stringer'bar 31 passes, the slot being of suicient length to permit the necessary relative movement between the stringer bar and the heddle. At a'suitable point in its length, each detector is also provided with a thread engaging and controlling formation, the

same being herein in the form of an elon-` gated slot or perforation 75. This slot is preferably of such length that when the heddles-are lifted to their normal position by the Stringer bar 31,.as is represented in Fig. 9, the threads are relieved each of the draft throng weight and frictional engagement with its respective detector and has a free running h the perforation 75. In this elevated position of theheddles as is shown in Fig. 2, the threads run freely over the guidevand supporting tubes 35 and are not required to sustain any of the weight or resultant frictional engagement of the heddles. Although unnecessary to the threadfault detecting function of the apparatus, but for the' purpose of assisting in forming the lease, the elongated thread-receiving slot 75 terminates just below the position which the thread occupies therein when the heddle is elevated to itsnormal position, as represented inFig. 9, so that any further elevation of the heddle will raise the thread. with it.

The normal up position of the heddles is shown in Fi 9 and the normal depressed position in Fgig. 6. In executing its movement the strinver bar moves from the position shown in tFig. 9-to the position shown in Fig. 6 so as to feel for the thread 3 and momentarily leave the detector sustained on the thread. Should the thread be broken or absent, the detector will drop to the position shown in Fig. 10 and engage with suitable detection devices which herein slow down the driving mechanism for the Slasher. Vhen the stringer bar 31 is lowered, it moves quickly to the position shown in Fig. 6, leaving suicientblearance to allow for the drop of the detector in case of a threadfault. The feeling movement having been performed, the bar is again quickly lifted, immediately relieving the threads each from the weight and friction of its heddle.

It will be observed that the heddles work in close proximity to the guidev tubes 35 so that even the momentary contact with' a high speed unsized yarn is under the conditions which tend to .the least impairment of the yarn. By separating them in several banks, supporting them at their upper ends and leaving them relatively unconfined at their lower ends, the heddles hang loose and free, so that they yield to the yarn and thev latter can travel through the heddles at relatively high rates of speed without -restricytion or danger from abrasion or other impairment.

' underlying contact members,

For responding to a thread fault, any suitable responsive devices may be employed, but herein there are provided electrical controlling devices controlled by the engagement between a dropped detector and herein in the form of the two contactplates 76 (Figs. 1', 2 and 3). These lie immediately below the several banks of detectors and are carried upon the depending hanger brackets 77 secured to the bottoms of the frame members 36. The circuit connections are preferably established by insulating the contact member 76 from the machine frame and connecting the latter to one terminal of the controlling circuit while the contact plates 76 are connected yto the remaining terminal as is shown in Fig. 20 and will be later explained.

A novel feature-of the described form of detector is the provision of means whereby, should occasion arise, any 4given detector maybe temporarily withdrawn from operative relation to the contact plate 76 or to such other detection responsive devices as may be employed. In the present case this is secured by the provision of a special supporting formation in the heddle whereby it may be lifted from its normal position and temporarily supported upon a catch bar or other device, which herein is carried by the remaining heddles of the series, so that the withdrawn heddle continues to move up and down with the main series but supported at a fixed position on the series, so that it is no longer capable of dropping into contact with the underl ing plate 76.

Referring to igs. 5 and 6, each heddle is provided withan elongated slot 80 terminating in a narrow throat 81 so as to form on either side of the throat catch or supporting projections 82. Just above the projections the throat opens into a space consisting herein of an extension of the slot 74 but the said space might be separate from the slot 74 if desired. In the spa-ce above the projections 82, a small rod orbar 83 is inserted and during the normal operation of 'the apparatus this bar, resting upon the projections 82, moves up and down with the '.bank. If a thread is permanently missing,

tions 82. By virtue of the connectin throat/v 81,the heddle can be readily slipped rom the position where the catch bar is above the throat, to the position where it is below the throat. In the latter position the heddle is supported through the catch bar by the remaining heddles of the series and cannot at any time fall below the position indicated in Fig. 5.

As previously stated, the responsive de vices for the thread-fault detecting mechanism effect an instantaneous slowing down of the driving mechanism for the slasher to a speed permitting the correction of the thread-fault.v As also previously stated, these devices work immediately and without the necessity of awaiting the subsequent y movement of lthe l22, positively enforced by circuit at the detector.

so that the control is exercised before the detector is lifted fromv the contact plate by the upward movement of the stringer bar which limmediately follows. The preferredl means for accomplishing control of thedriving mechanism is through the movement of a speed controlling member,-herein the shipper handle the closing of the n the specific construction hereinshown, this is seculed by causing the electrically the previouslylatched` shifting lever so that it is automatically and instantly thrown to a position to shift the rbelt over to the slow speed pulley 21. eferring more particularl to 15, inclusive, the belt shi when lmoved lto the position the belt to the tight pulley 11, is pressed against an actuator arm 90 (Fig. 14) the latter secured to the slide rod 91 slidably mounted in

guide arms

92, 93, carried by the bracket 94 attached to the side of the Slasher frameadjacent the hand lever 22. The slide rod is normally moved to the right as viewed in Fig. 14 by means of a coiled spring 95 interposed between. a collar 96 in the end of the rod and the bracket 93, the spring being of suilicient strength to draw the actuator 90 to the dotted line position shown in Fig. 14 and move the belt shifter to a position Where it applies the belt to the slow speed pulley 21. In that posi,- tion the actuator arm 90 is brought to rest by engagement between a collar 97 fixed on the slide rod 91 and the guide arm 93, the belt shifting lever being capable of being moved still farther to the right to throw the belt on the loose pulley and stop the machine. The lever 22 is yieldablyfixed with referenceto the actuator 90 by means of a spring-pressed pin 98 carried by the actuator arm/ and' engaging a groove or depression in the side of the lever.

When the actuator arm is moved to the full line position shown in Fig. there held by means of the latch finger 100 engaging the pivoted catch 101. The latch finger is pivotally mounted on a pin 102 carried by the bracket 103 fixed upon the slide rod 91. Its rotative movement lefthandedly, as viewed in Fig. 14, is limited by the shoulder 104 on the latch finger which engages a stop lug 105 on the bracket. A spring 106 on the pin 103 tends normally to turn the latch finger to the position shown in Fig. 14 against the stop lug. This providesa construction whereby the latch nger is permitted readily tosnap astand seat against the catch when the sli e rod is moved to the left (as viewed in Fig. 14) but prevents opposite movement of the slide rod or actuator until the catch is withdrawn to Figs. 12 ting lever 22 for applying some part of the mechanism,

actuated release of 14, it is whereuponthe spring -moves'the Aactuator and throws the belt shifting lever as described. The catch 101 is caused to be positively withdrawn to release the latch andactuator immediately on the dropping of a detector by electro-magnetic means which are energized through the circuit completed thereby. Any suitable form of electro-mag netic release for the catchma be provided, but herein I have shownin liigs. 16 to 19, inclusive, an eicient form of'electro-magnet catch release similar to that shown in Patent No. 538,124, dated April 23, 1895. In this form of releasing mechanism the catch 101 has a tail piece 110 whichis prevented from movement in a direction to release the latch 100 by the stop projection 111 carried by the rock lever 112. The rock lever 112 is pivoted in the casing 113 and has at one end a stop arm 114 provided at its end with a stop projection 115. The latter is normally prevented from movement in a direction to release the catch by the end 116 of an' armature lever.118, the latter being located in operative relation to the magnets 119.

The armature lever 118 is normally thrown i vment. The stop 111 yields against the pressure of the tail 'piece 110 and the latter against the pressure of the the catch swings back out of the way of the latch, releasing the latter and permitting movement of the belt 4shifting lever. A relatively light spring 121 is provided to normally hold the catch and rock levers in the full line position shown.

As indicated in the diagrammatic view shown in Fig. 20, the magnet windings 119 are in series with a circuit passing through a source of electro-motive force 122, the machine frame, detectors and contacts 76, the circuit as described being normally broken latch 100, and

between the contacts and the detectors. .Y

the -speed change l that the same is limited neither to 'as heretofore described, which gives the required decussation of the threads to permit a leasing tape to be passed between thetwo sheds thus formed. The pairV of elevated heddle supports are then lowered and the remaining pair raised and another tape inserted. This operation need occupy but a few seconds of time. The machine is then started u the leasin tapes being passed through tiie comb, ree s or other interfering parts of the machine by expedients similar to those heretofore adopted and well known in the art.

It is convenient to draw the warp threads through the harnesses in one, three, two, four order, that is to say, the first thread of the warp through a heddle of the first set, the neXt adjacent warpl thread through a heddle of the third set, the next through a heddle of the second set, and the fourth through a heddle of the fourth set. By this expedient the first and second set of heddles or the third and fourth set may be raised together to obtain the decussative arrangement of the yarns. Obviously any other suitable arrangement of thread drawing may be had.

It will be observed that by employing several pairs of detector sets not ,only are the threads given a very free draft between the detectors, due to the freedom of the latter to separate, but the detector supports may be manipulated at will to form a single thread or a double thread lease i. e. one where two adjacent and successive threads fall upon the same side of the leasing tape or other leasing member.

While l have herein shown and described for purposes of illustration one specific embodiment of the invention and one specific application thereof, it is to be understood the details of construction nor relative 'arrangement nor position of parts herein shown, nor to the application herein made of the several features of improvement herein disclosed, but that extensive deviations may be made from the described embodiment without departing from the spirit of the invention.

Claims.

1. The combination with a Slasher of thread-fault-detecting members operatively associated respectively with the individual threads thereof, and means controlled by the i same on the occurrence of a thread fault for slowing down the Slasher without stopping the action thereof. y

2. The combination with a slasher of thread fault detecting means associated therewith, and means controlled by the same for slowing down the Slasher.

3. In a textile machine, the combination with means for passing threads therethrough in a non-united condition, driving mechanism, thread-fault-detecting means,

sage and normally out of supported contact y with the threads, and detector-controlled mechanism responsive to theoccurrence of a thread fault.

5. The combination with a slasher having its section beam supports, sizing rolls, drying cylinder and loom beam support, and means for driving the same to cause the passage of threads from the section beams over the sizing rolls and drying cylinder to the loom beam, of thread-fault detecting means associated with the threads and including a series of vibratory feeler-detective devices adapted to feel for and contact with nonfaulty threads.

6. The combination with a slasher with its section beam supports, sizing rolls, drying cylinder and loom beam support` and means for driving the same to cause the passage of threads from the section beams over the sizing rolls and drying cylinder tothe loom beam, thread-fault-detecting mechanism associated with the threads during their passage and means controlled by the occurrence of a thread fault for slowing down the movement of the threads without stopping the same.

ing size rolls, a drying cylinder, a loom beam support, means for causing the passage of threads from the section beams through the sizing devices over the drying cylinder and to the loom beam, thread-fault-detecting means associated with the threads between the section beams and the sizing devices and including detecting devices normally out of supported contact with the threads and acting on the unsized threads, and means to cause an occasional thread contacting movement of the detecting means to detect the occurrence of a thread fault.

9. The combination with a `Slasher of the thread to pass from IV-'shzrged vat the ends but having cate thread-fault-detecting means including detecting devices normally ported or supporting contact with the threads but adapted periodcally'to contact therewith to detect the occurrence of a thread fault.

' 10. The combination with a slasher of thread-f'ault-detecting mtans including detecting devices normally out of supported Contact with the threads, thread-guiding means for maintaining a substantially fixed path for the threads where they pass the detecting devices, and means for causing an in- A termittent thread-contacting movement of the detecting devices.

11. As a new article of'manufacture, a detector liaving'a supporting formation Whereon it may rest on a supporting member and provided with a throat through which the member may be relatively withdrawn from supporting relation to the detector.

12. A heddle provided with a perforation having in its upper edge a relatively narrow throat opening into a wider member-receiving perforation, said throat presenting on each side abruptly shouldered supporting portions.

13. A flat metallic heddle having a relal tivel narrow slot terminating both above and elow in wider member-receiving 4openings, in combination with a supporting member of greater Widththan the slot.

14. A heddle provided with a perforation having in its upper edge a relatively narrow throat opening into a Wider perforation, said upper edge presenting at said throat abruptly shouldered supporting portions.

l5. The combination of a series of heddles with a supporting bar, said heddles, being provided with perforations wherein said bar may be sustained, each heddle perforation being so. shaped as to permit it to be lifted individually with relation to the series and sustained by the remaining members of the series through said bar. v

16. In a detector mechanism, aseries of detectors and means for supporting an individual detector by .the other membersof the series but at a height, above the level of 50 the remaining members of the series.

17. In a detector mechanism, a series of detectors, means for raising and lowering the series, and means for moving an indi- Y vidual detector to support the same in fixed relation to the series as a whole whereby the same is rendered inoperative.

18. In a thread-fault-detecting ap aratus a series or bank of detectors, means or giving said detectors an intermittent, threadso fault-detecting movement, and means for temporarily rendering a given detector inoperative.

19. As a new article of manufacture, a detector having a thread slot and an o ening Pro' out of .either supsets relatively jections whereon said detector may be temporarily suspended to render the same inoperative.

20. The combination with a textile machine of a plurality of sets of threads, detectors normally held out of supported rela-y tion to the threads, means for giving the same an intermittent thread detection feeling movement, thread-fault detection mechanlsm controlled thereby, and means for giying said sets relative movement to strike a ease.

21. The combination with a slasher of lease forming means comprising a plurality of sets of detecting members normally held out of sup orted relation each to its corresponding t read, means for giving them an intermittent feeling movement each against its thread, thread-fault responsive means controlled by said members, and means providing for relative movementof the sets to strike a lease.

22. The combination with apparatus for winding on a succession of warp rolls from the same source of thread supply, of intermediate lease forming means comprising a plurality of sets of detecting members, thread-fault responsive means controlled by said members' and means for moving said to each thread to strike a lease.

23. The combination of a plurality of series of heddle members, means to vibrate the heddle members, means while the vibratingl means is at rest to shift any series of heddle -members vertically and there hold the same to strike a lease.

24. The combination of a plurality of series of detector members, means to vibrate the latter, thread-fault responsive means controlled by the detectors, and means while the vibrating means is at rest to shift any series of detectors vertically and there hold the same to strike a lease.

25. The combination with a slasher of lease forming means comprising a plural-ity of sets of thread-fault-detecting members normally out of supported contact with the threads, means fo'r moving the supports one at a time to bring their detectors into threadcontacting relation with the threads. and means at will to strike a lease by moving a plurality of said supports at a time to lift the threads which are related tothe detectors carried by said supports above the plane of the remaining threads.

26. The combination with a slasber of lease-forming means comprising ya plurality of sets of thread-fault-detector members normally out of supporting contact with the threads, means for depressing said members at intervals to bring them into fault-detect-y ing contact with the threads. and means at will to raise a set of said detector members into supporting contact with the threads controlled thereby and thereby raise the threads above the plane of the remaining threads to assistv in striking la lease.,v

27. The combination with a slasher of a plurality of banks of thread-fault-detectors, a holding bar for each bank, automatic power means for vibratingsaid bars to impart a thread contacting movement to the detectors and devices for disconnecting the automatic power vibrating meansfrom the holding bars whereby the latter may lbe moved as desired to strike a lease in the threads controlled thereby.

28. The combination with a slasher of a plurality of sets of detector devices normally out of supporting contact lwith the threads, automatic power means for moving the detectors at intervals into supporting Contact with the threads, and means for disconnecting said power means whereby said detectors may be employed to strike a lease.

29. A method of detecting 'thread fault i. in a high speed yarn which consists in intermittently feeling for any contacting with the yarn while maintaining the latter in" a substantially fixedpath.

l 30. The method of detecting a thread fault in a high speed yarn which consists in intermittently feeling for. and contacting with the yarn Without delecting'the yarn from its path and causing the feellng movevment to control the yarn movement on the occurrence of a thread fault.

31. The -combination with a slasher of -combined leasing andthread fault detectdepending devices hav- Y ing means including ing elongated thread openings, and means to move said devices intermittently to contact with non-faulty threads.

32. The combination with a slasher of combined leasing and thread fault detecting l means including depending metallic members having elongated thread openings, and means positioned above the threads to move said4 members periodically into feeling contact with non-faulty threads.

33. A combined lease forming and detecting mechanism for warp threads comprising a plurality of banks of detectors, av

occasional frictional movement of the corresponding detector bank the said cams being arranged to cause said movements in order of succession, a driving ratchet for said-several cams, a driving pawl for mov-e ing said ratchet, a constantly driven shaft for actuating said pawl, means for turning said cams independently of the driving shaft to bring the said banks to the same level when the driving shaft is at rest, and means for changing the connection between each actuating member and its support to cause relative movement between the several detector banks to strike a lease.

34. The combination with a textile machine of a combined lease forming and detecting means, and mechanism for moving, said means intermittently into feeling en gagement with the threads,^said thread feeling movement being without sensible deflection of the thread from its normal path.

35. T'he combination with a slasher hav ing its section beam supports, sizing rolls,

drying cylinder and loom beam support, and means for driving the same to cause the passage of threads from the section beams over the sizing rolls and drying cylinder to the loom beam, of combined lease-forml MILLARD F. FIELD.

Witnesses THOMAS B.y Boo'rH, EVERETT S. EMERY.