US1793325A

US1793325A - Automatic shuttle-changing mechanism for double looms

Info

Publication number: US1793325A
Application number: US315170A
Authority: US
Inventors: Ralph W Knowlton; Harold C Bennett
Original assignee: SANFORD MILLS
Current assignee: SANFORD MILLS
Priority date: 1928-10-26
Filing date: 1928-10-26
Publication date: 1931-02-17
Anticipated expiration: 1948-02-17

Description

Feb. 17, 1931. R. w. KNowLToN ET AL. 1,793,325'

AUTOMATIC SHUTTLE CHANGING MECHANISM FOR DOUBLE LOQMS Filed oct. 26, 192B '7 Sheets-Sheet 2 Feb. 17, 1931. R. w. KNOWLTON Em. 1,793,325

4AUTOMATIC SHUTTLE CHANGING MECHANISM FOR DOUBLE LOOMS l Feb. 17, 1931. R. w. KNowLToN ETAL 1,793,325

AUTOMATIC SHUTTLE GHANGING-MECHANISM FOR DOUBLE LOOMS Filed oct. 26, 1928 v sheets-sneer@ Ilz-9.25 1131.16 @9.17

Feb. 17, 1931.

R. W. KNOWLTON ET AL AUTOMATIC SHUTTLE CHANGING MECHANISM FOR DOUBLE LOOMS Filed Oct. 26,'

1928 7 Sheets-SheetA 5 Feb- 17, 1931 R. w. KNowLToN ET AL 1,793,325

AUTOMATIC SHUTTLE CHANGING MECHANISM FOR DOUBLE LOOMS Filed ocr. 26, 1928 7 sheets-sheet ves /x f I c Y R Inl/enfans. 42 f/ W//von/L To/v,

Hf/orne? Feb. 17, 1931. n R. w. KNOWLTQN ET Al.- 1,793,325

AUTOMATIC SHUTTLE CHANGING MECHANISM FOR DOUBLE LOOMS Filed Oct. 26, 1928 7 Sheets-Sheet 7 )W70/we y APatented Feb. 17, 1931 UNITED --sTATEs PATENT OFFICE- RALPH w. Known'oN AND HAROLD c. BENNETT, "or wFsTBpoo'x, Manin, Ass-IGNoBs,

A:BY MESNE ASSIGNMENTS, T .SANFORD MILLS, OF SANFORD, A CORPORA- TION OF MAINE Y AUTOMATIC SHUTTLE-CHANGING Tiramisu son. poUBLE'Looms which argV employed two shuttlesope'rating simultaneously.

The general object of provide means by which a practically threadless bobbin maybe automatically replaced by another in which is a fully-stocked bobbin, the transfer being made without interrupting the operation of the loom, and without particularl attention being given the matter by the loom tender.

In a coipending application for a patent on shuttle-changing devices, liled by us on January 27 1928, Ser. No. 249,905, a construction is disclosed which contemplates a combined manual and automatic actuation of the parts to accomplish 4this purpose, but in this invention the operator of the loom requires .to be constantly on the watch for any empty bbbbin and must start the mechanism vwhich automatically makes the transfer of shuttles just prior to the complete depletion of the thread on the bobbin. r In our present invention no manual effort .on the part of the loom tender is required in the operation .of changing the shuttles. stead, there is provided in each shuttle a resilient feeler making continual contact withv the outside layer of thread wound on the bobbin.

As the thread is taken away in the process of weaving, the feeler moves inwardly, or toward the axis -ofvthe bobbin,

when the bobbin has become nearly depleted yof thread, completes and closes an electric cir- -cuit by contacting with a metallic'element the shuttle which, with interconnecting conductors in the shuttle-box causes a mag- 4net or solenoid included in the circuit to be energized and to put into action certain parts of the apparatus which enables those. immediately concerned in the shuttlerchanging to function.

.` ing time which in One of the fundamental objects of our improved apparatus, which is fullyrautomat-ic in itsI action, is to eliminate the loss pj operatloom is occasioned by frequent shut-downs to rel-stock the shuttle. notherobject concerns the method of disour invLentiony is toa shuttle containing b disarrang'gement of any of the-individual and finally,

the conventional type of Appuation, meaogtpber 26, 1928. serial No. A315,170.

charging the empty'shuttles from, and ad-4 mitting the fully stocked ones to the shuttlebox,-the latter operation being performed by simply allowing the shuttle at the propertimekto fall into its position in the shuttle- And a further object resides in the safety mechanisms provided for fortifying the several portions of the apparatus againstaccidental injury due to the non-functioning1'or ments.

We have other objects in view and these will be s et forth hereinafter, as the' description of the apparatus develops, and for the purpose of illustrating our prepared the accompanying drawings dis-y closing one and the preferred. embodiment thereof. j

In these drawings,-

Fig. 1 is a sidev elevation. of the apparatus, the lay being shown in forward position and the shuttle-box raised;

invention we -have j Fig. 2 is a detail showing a `fragmentaryl l plan view of the locking mechanism;

Fig. 3 is a view in section, taken on line 3 3, Fig. 1;

Fig. 4 is a view showing a possible condition with respect to the cam actuated portion Iof the apparatus; Y

Fig. 5 is a side elevation of the apparatus with the lay shown in backward position and the shuttle-box lowered; v

Fig. 6 is an end elevation of the device;

Fig. r7 "s an end elevation of the shuttleejecting parts;

Fig. 8 isfa transverse sectional view through the shuttle-boli and operating parts immediately connected therewith;

Fig. 9 shows means to prevent interference between the picker-heads and shuttles when j the shuttle-box isu lowered;

Fig. 10 is a sectional view of the lower end* of the shuttle-box raising standard;

u Figs. A 11 and 1 2 are details in connection with the ejectin parts;

Figs." 13fto 1 inclusive show, diagram- I i tric circuit; y

cut the thread,

l one having three compartments.

p Fig. 21 is a' plan view of the shuttle separating and dropping mechanism;

Fig. 22 is an elevation of two shuttles with the separating plates interposed; I

1g. 23 is a diagrammatical outline of the loom, showing the wiring diagram for the electrically actuated shuttle release mechanism.

Figs. 24 to 28, inclusive, sectional views illustrating the sequence of movements of the parts vcovering one cycle in the operation of ejecting an empty shuttle and placing in operative position in the apparatus a fully stocked shuttle, the sections being taken longitudinally of the shuttle boxes. Y

Fig. 29 is a detailed horizontal sectional view illustrating the arrangement of the shuttle ejecting slide; l

Y Figs. 30 to 33, inclusive, are detailed views illustrating the construction of the mechanism for stopping the loom should the ejecting mechanism fail in discharging the empty ShuttleJ from the bottom box of the three shuttle box assembly.

Figs. 34 and 35 show a plan and end view, respectively, of the mechanism employed to previous to the ejection of the empty shuttle.

Similar reference characters are employed to id entifyr like parts in all views of the rawings.

Inv equipping a loom with our shuttlechanging device it is necessary to discard one of the original shuttle-boxes and substitute The passmg of the shuttles back and forth from one shuttle-box to the other is accomplished in `substantially the vsame manner as it is in the ordinarytype-of loom and all movements of v the new parts are timed in synchronism with anism must be the Jfrane of the the driving mechanism for the other parts of the loom. j

As our apparatus is inoperative a greater portion of the time it is necessary to provide therein the proper facilities to insure coordination .between the movements df the different elements, the old and the new, so that no interruption tinuity of operation of the loom as a whole, when the time arrives for placing a fully stocked shuttlein service. In other words, the insertion of a new shuttle into the mechdone in the proper sequence of loom movements. l

Referring to Figs. 1, 5 and`6, 1 represents loom, or that portion of it are diagrammatic ond lever 14 which/is shall take place in theconture which have most intimate connection On the shaft 5 lis a cam 6 having two dwells or concentric peripheral surfaces of different dlameters. In the operation of the loom this cam rotates continuously.

Pivoted on the pin 7 secured in a bracket on the side of the frame is a lever 8 on the upper side of which is an arm 9 carrying a parts included in our present invenroll 10. From the pin 11 hangs'a link 12l connected at its lower end, at 13, with a secl fulcrumed on a pin 15 1n a'bearing 16. An extended portion of the lever 14 makesfconnection at 17 wit the shutle-box lifting standard 18.

Journalled on the pin 19 is a rock-shaft 20, the outer end, at 21, being connected to the rod 22, which latter extends upwardly and makes connection, at 23, with one arm of the bell-crank 24 journalled on the pin 25 in the vbracket `26. The other arm of th'e bellcrank carries an inwardly disposed stud 27. When no shuttles are being changed the foregoing parts, with the exception of the cam 6, remain stationary and as shown in Fig. 1, being lock, d by the engagement of the short arm 28 of the rock-shaft 20, with the free end of the lever 8. The spring 29 serves to hold the engaging parts in strong contact. j

The picker-stick 30 is made similarly to and operates in the same manner as in looms generally; the same is partly true of the Aen picker-heads 31, but the shuttle-box 32, containlng three shuttle compartments, a, b and c, is dissimilar. In Fig. 8 is shown, in up position, a

transverse sectional view of the shuttle box which is vertically movable and mounted in housings 33 supported on the lay frame structure. On its end faces are tongues which operate in channels 34 in the housings and its vertical action covers a space equal to the center to center distance between twovadjacent shuttle compartments. The upper end of the `lifting standard 18 is secured to the lower ioor o f the shuttle-box and serves to support the latter and control'its vertical 17 down, lowering the standard 18 with the Y shuttle-box and bringing the latter into its y making connection with the ejector it .on the lower,

down position', the weight of the parts together with the tension of the spring 37 effecting this result. A

The shuttle-box, however, I position only solong asV is required for the cam to make another half revolution, the larger lobe of the latter forcingthe lever 8 downwardly into' its former position and lraising the shuttle-box again into its up,

position.

The foregoing covers one cycle of movement of the parts to lower and raise the shuttle-box. j

Figs. 6 and 7 both show an end elevation of the elements employed 'to eject an empty shuttlef-,the former illustrating the parts as they are positioned before, and the latter after the shuttle has been removed from the shuttle-box. 1

'Secured to the base of the. shuttle-box housing 33 is a depending bar 38, pivoted on which, at 39, is a lever 40. Extending from the upper 4 end of this lever to which 1t 1s pivotally secured by the pin 41, 1s a rod 42 slide 43 by means of thepin 44.

The short arm f the lever 40 is connected by a sliding joint, at 45, to the ejector bar 46, the lower end of the latter swinging from the pin 47 and the upper end provided with a forked, swinging connection jat 48 from which extends the ejector arm 49. Y

Onfthe standard 18 is a conical collar 50, so positioned thereon that the arm 49 abuts or smaller end when the shuttle-box is. in up position which, hereinafter will be termed the normal position of the latter element.` Fig. 6 shows the shuttle-box in normal position and while thus disposed in the apparatus the picker stick 30 `may oscillate to and fro without interference with the arm`49, or the offset portion thereof, 49. mechanism acts to transfer shuttles, the shuttle box is lowered, together with the conical collar 50 which latter forces the arm 49 outwardly so that now 'itrests on the larger.

diameter of the collar`(see Figs. 11 and 12).

The offset portion 49 is now in the path of the picker stick 30, engaging when it is drawn o yer on the forward stroke of the stick and results in rearranging the other elements in the ejector mechanism, as isshown in Fig.

` 7. Thus in one movement forwardly the picker-stick acts to throw two operative shuttles across the lay and. an empty shuttle out of the mechanism. f

remains int this IBut when the vIt will be understood that the operation of l Figs. 1s, 19 'and 2o.

Within the shuttle is a flat spring 51, bent i i so that its outer portion abuts with a slight pressure on the thread T wound on the bobin B. An L-shape offset portion 51' extends into the depression 52 made in the side of the shuttle. lAlsosecured on the inside wall of the shuttle is a plate 53. 1 A On the outside of the shuttle are two

plates

54 and 55, the former making connection with the spring 51 and the latter with the inside plate 53. Tl `spring and all the plates areinsulated from the body of the shuttle.

In the right hand shuttle box, R, of the loom, which is the one containing two shut tle compartments,\- there are inserted in a side strip R servin`g,\ as a portion of the side wall yof the shuttle-box, lower compartment, two

plates

56 and 57 electrically insulated, and extending therefrom are

wires

58 and 59 respectively. When the lower shuttle is 'thrown across the lay into the shuttle-box R, the respective plates make mutual contact, --54 with 56 and 55 with 57, all platesbeing extended slightly outside of their holdingk elements to insure absolute contact, relatively. 4 In the process of operating the loom the thread is gradually drawn from the' bobbin until but a comparatively few turns are left on the tapering end of the spool. The spring 51 follows the reducing diameter of the body of thread until it bears on the few turnsI remaining and at this po'int the L-shape end of the spring contacts with the plate 53 and the electrical circuit is closed, resulting in energizing the solenoid 36.

Immediately the electrical circuit is closed, the solenoid pulls'the pawl 35 downwardly als los

and the elements involved in theoperation .I

of lowering the three-compartment shuttlebox L are put into'actionf-as hereinbefore explained. Y

t If reference be had to Figs. 13 to 17, in-

clusive, a comprehensive understanding of the movements of the shuttles as they pass in.

and out of the shuttle-boxes'may be gained.

It is understood, of course, that the picker heads and the ejector slide have no vertical movement, and that the picker heads in both boxes are alignment. y

Assume, first, that the magazine 60 is filled in respective horizontal '.Figs. 6 and 21.

y lay frame where it connects with fully stocked shuttles, that they shuttleox `is in normal position, that shuttle #2 is (partially stocked and shuttle n the passing of the two shuttles, #l and #2, from shuttle-box L to shuttle-box R, the lower of the two, shuttle #1 effects the closure of the electrical circuit which causes the pawl 35 to' be depressed.

'Before the release of these two shuttles from shuttle-box R the lay moves and the pawl engages the pin 27 which indue course moves the arm 28 oliI the lever 8, but the latter cannot at this point rise because the roll 10 is in contact with the larger iameter dwell@ on the cam 6. During the return movement of the lay, are thrown back into the compartments from which they started, e and b, respectively.

On further movement of the cam theroll l0 will/pass tothe smaller diameter: dwell y, allowlng the shuttle-box L to. drop into low position (see Fig. 14), remaining thus until the picker-stick 30 has moved forwardly, throwing the'shuttles #2 and #3 to shuttle-box R and simultaneouslycausing, through the agency of the lever 40, the ejectionl of the empty, shuttle #l into any, con! venient place, as the hopper H.

Immediately following the ejection of the empty shuttle #1 the highpoint of cam-approaches the roll 10 and the shuttle box L is traised quickly to its normal or up position while the shuttles are in shuttle box R.

The weaving continues with the two shuttles #2 and #3 operative, until #2,- is exhausted, when the procedure just outlined will be repeated,-the shuttle #2 now being ejected, as shown in Fig. 16. The loom tenders work in connection with shuttle changing is confined wholly to the duty of keeping the magazine supplied with fully stocked ishuttles.

It will be observed that in Figs. 13 to 17 a plate 6lis shown positioned on the outside yof the shuttle-box when it is in normal position and within it when in down position. The purpose bf this plate is to hold back o r support the upper shuttles,-.as #4, #5 and #6 (see Fig. 14) at the time the two shuttles #2 and #3`are being passed to the other shuttle-box R. The actuation of this plate 61 is accomplished Loosely secured to the end .of the stud 17 is a rod 62 which extends to the top of the with one leg of the. bell-crank 63. On the opposite leg of this bell-crank a rod 64 makes connection with the pin'65, secured in the plate 6l.; 1`wo pins 66 and 67 fixed in the plates are Joined by the rod 68 and s opositioned that they D swing the plates toward each otherfwhen entering the shuttle-box, thus facilitating the entry of the plates between .the `pointed ends offthe shuttles, as seen'in Flg. 2

#l empty..

the shuttles #l and #2.

vin the lifting by mechanism shown inrod 62 may be required, a telescopic with shuttles there mighty be an interference between the picker-heads and the pointed ends of the shuttles as the latter pass downwardly by the former, were there no provisionmade to prevent this occurring.

In Fig. 9 is shown an-auxiliary bumper arm 70, pivotally secured to theinner end of the shuttle-box housing. 1

The picker-stick returning, abuts on the end of this bumper and receives the shock of the shuttles as they are thrown from the other shuttle-box against the picker-heads.- But upon the shuttle-box L descending, the stud 7 1 forces the bumper' away from/the pickerstick which then may move further toward the end of the housing, bringing the picker-heads out of reach of the descending shuttles. A spring 70 holds the bumper in normal position, as seen in full lines, Fig. 9. Tensioning means tending to swing thepicker-stick in the direction of the arrow is provided at 72 as illustrated in Fig. 7 of the drawings.

To provide constancy in operation of our apparatus we equip it with certain safety appliances.r For instance, the standard 18 see Fig. 10) lower end and the solid shaft portion 18 extends therethrough, terminatin in a threaded end on which is the nut 7 -3. ntermediate the end of the bushing and the shackle 74 is a nut 75 and on each side of the bushing and abutting on one of the respective nuts'is a spring 76. Thus a yielding, telescopic action is provided for in either direction which avoids breakage of parts should a jam occur mechanism. v

yReferring to Figs. 1, 3, 4 and 5, the arm 9 has la' stud 77 located directly above the roll 10. During rthe oscillations of the plcker-l stick 30 the long and short dwells, and y, O n the cani 6 are in vertical alignment with tlus stud as illustrated in Fig. 4 ofv the'drawings.

in its lowermost posihas a bushing 72 pressed into its l lm l tion on the cam, then the lever 8 could rise, out of time with the other mechanism, and precipitate a conflict between the parts -due to the fact that the shuttle-box 32 would belowered prematurely- But bythe employment of the stud 77 this condition is not present and confusion of movements of the parts impossible, even should the lever 8 be unlocked by the arm 28, as in this case the stud would abut on the surface y (see Fig. 4), and hold the lever, until the picker-stick had completed its movement, in substantially the same position in which it was when locked by the arm 28.

In correct sequence of movements .of the parts, to raise or lower the 'shuttle-box, the roll 10 remains always in contact with some portion of the cam face, and when the roll is contacting with the cam dwell g/the Stud 77 passeson the inside of the flange which, projecting from the side of the cam body serves as this shorter dwell, as seen in Fig. 5.

Before the thread on the bobbin becomes wholly depleted it must be cut or severed fromy the body of woven material M. In Figs 34 and 35 we illustrate the, device which we prefer for the accomplishment of this purpose.

On a forwardly extending portion-of the frame 1 of the loom is attached a slide holder 78 within which operates a slide 79. Secured to the slide and offset therefrom is a cutting knife 80. A pin 81 extends through a slot in the side of the slide holder and engages the oscillatory arm 82 which is pivoted at 83 on the bracket 84 fixed on the slide holder'.

On the upper end of the arm 82 is an outwardly disposed stud 85x, and at 86 is a spring which normally holds the slide in retracted position. r

On the toplof the shuttle-box 32 is secured a bracket with a downwardly hanging foot 87.

.When the shuttle-box is in normal or up position and swings forwardly and backwardly with the lay frame, this foot 87 clears the stud 85, but when the shuttle-box 'is lowered and swings forwardly the foot engages the stud and causes the slide to be advanced so that it cuts the thread T extending from the bobbin in the lower shuttle. It will be observed by reference to Fig. 25 that the `cutting knife is shaped so that it will cut either moving forwardly or backwardly,`

' the intention being to do the cutting on the `forward stroke, but if it misses on this movement it will be quite sure to engage the thread as it returns.

As has previously been stated, the actuation of` our shuttle changing apparatus ,is accomplished by wholly automatic means. After filling the hopper with stocked shuttles the loom tender simply throws a switch, starts his loom and gives no further thought to this particular feature in the operation of the loom,-his only hopper is supplied with shuttles.

Lered.

care being to see that thev In Figs. 13 to 17 inclusive, are diagrammatically shown thethree-shuttle box and the shuttles in the different positions they assume, incident to the passage of the latter Iin and out of the mechanism.

In Figs. 24 to 28 inclusive, We illustrate the same elements, and sequence of movements of the parts covering 'one cycle in the operation of ejecting an empty and placing in operative position in the -apparatus of a fully 4stocked shuttlethe several sectional 'views being taken longitudinally of the shuttle boxes. ,f 4

In Fig. 24 two operative shuttles, #1 and, #2, are shown in shuttle box R (twoshuttle box) in position to be thrown across the lay into compartments c and b, respectively, of shuttle box L (three-shuttle box) by the actuation ofthe picker stick 30-tlie three-shuttle box being in up position.

Let it be assumed that lshuttle #2 is partially stocked and that shuttle #1 is empty and about to be removed from the loom. The result of the movement of these two shuttles, #1 and #,2, forwardly, is shown in Fig. 5. This is movement number one.

Next, the three-shuttle box is L"lowered, as seen in Fig. 26,-constituting movement number two; and following this action the` the shuttles and the apparatus as lit was delineated in Fig. 24,--exce t that the magazine ,60 contains one less s uttle.

It/ will be observed that on the downward movement of the three-shuttle box 32 the separating plates 61 actnto support the

shuttles #

4, 5 and 6 so -thatno conflict arises between the shuttles #3 and #4 when the fprxie is projected into the opposite shutt e ox.

Fig. 29's a horizontal section, or sectional A j plan throu h the lower compartment of the three-shutt e box showing particularly the ejector slide 43'which is reci rocably mounted in the shuttle" box housing' element 33.

The slide, itwill be observed, is disposed outwardly -of the shuttle box 32 so as not to conlict with the latter when it is' raised or low- It might be-well` to state that theb impact of the ejector head and likewise ofthe picker heads against the ends of the shuttles is of such potency that neither of the heads need 2o trap 88 on the under side of which is' a stud travel the full length of thegshuttle compartments to give sufficient momentum 'to the shuttles to project them out'of the boxes.

` The ordinary two-shuttle loom is provided with facilities .for protecting the working parts should a shuttle fail to throw completely across the lay from one box to the other in the operation of weaving.l a

This protective measure is of course reu-5 i employed to accomplish this object is illustrated.

In the ioor of shuttle compartment cl of the three-shuttle box, is a pivotally mounted- 89 preferably made of some non-metallic substance or at least covered with any material insulating it from any other element with which it contacts. On the shuttle box housing 33 are two`

spring arms

90 and 91 which also are insulated from the metallic portions of the loom by any suitable insulating material, as the libre block 92. When the shuttle box is in up position, these spring arms are not in mutual contact. p

At a convenient location on the lay frame but in contiguous relation to one of the protector fingers 93 (being one of the old elements in the loom), is a bell crank 94, pivotally mounted in the bracket 95. On the short arm, 94', of this crank a link 96 is connected and this latter extends and makes connection with the armature rod 97 of the solenoid 98.

When the three-shuttle box 32 is in up position and the lay frame is oscillating for- (wardly and backwardly, `the parts are disposed` as seen in Figs. 30 and. 33, the protector dog or short arm 93 of the prot'ector finger passing over the bumper block 99 (this Aalso being an old part of the loom), and no actionl of the elements embodied in theysafety device takes place. 'When the three-shuttle box is lowered, however, the stud ,89 causes the two

springs

90 and 91 to make mutual contact-the 'shuttle holding the trap 88 against upward movement in the box.

This r'esults in closing an electrical circuit, through the wires 'w and a, energizing the solenoid 98 and forcing 'the arm 94 downwardly and the protector finger 93 forwardly. Just at this particular time the lay frame is nearly at its rearward position and the empty shuttle about to be ejected. But in the event that the ejector parts fail to discharge the shuttle completely from the box, on the forward movement o f the lay frame the P130- tector dog 93', which already down (see idot and dash lines, Fig. 33) engages the Abumper block 99 on the main frame of the loom and forces it forwardly suiiciently to .throw out the driving clutch of the loomthereby stopping all action of the loom parts.

'It'will be understood that during a por` tion of the time in which fthe lay frameis moving forwardly, assuming that the threeshuttle box is in fdown position, the empty shuttle is holding the

springs

90 and 91 in relative contact, with the result that the dog 93 is in readinessto act tostop the looin.

But if the parts function properly and the shuttle is discharged from the box the springs separate before the dog reaches the bumper block and the loom mechanism continues to operate without interruption.

In viewofthe fact that in the conventional type of two-shuttle looms a quite consider-v able amountlof time is corsumed in the operation of frequent shuttle changing, and especially whenv it is considered that this time is absolutely a loss in productive effort, our present invention, it is believed, will become a potent factor in reducing manufacturing costsof textiles. l f

What we claim and desire-to secureby IJetters Patent is the other side of the'loom and shiftable upwardly and downwardly to arrange an empty box above the path of the shuttles to receive a full shuttle and movable downwardly to carry the full shuttle to the shuttle path and the-empty shuttlev below the shuttle path to discharge the same, each'of the boxes of the three box assembly having a bottom wall and the bott'om vwalls completely separating the boxes, and means operated by the exhaustion of a shuttle while the latter is in the two box assembly to shift the three box assembly automatically.

2.'` A loom of the class described, including a two box assembly located at one side of the loom, a three box assembly located at the other side of the loom and shiftable upwardly and downwardly to arrange an empty box above the path vof the shuttles to receive a full shuttle and movable downwardly to carry an empty shuttle below lthe shuttle v path, each of the boxes of the three box assembly having a bottom wall and the bottom walls completely separating the boxes, means operat'ed by an exhaustion of a shuttle while the latter is in the two box assembly for automatically moving the three box assembly downwardly, and means for automatically ejecting the empty shuttle when the three box assembly is moved downwardly.

3. A loom of the class described, includi ly "and downwardly to arrange an empty box above` the path ofthe shuttles toI receive a full shuttle and movable downwardly to carry an empty-shuttle below theshuttle path,`

each of e boxes of the three box assembly having a bottom walland the bottom walls: col'npletely-separating the boxes, means for normally locking` the shiftable .assembly against upward and downward movement, and means operated by the exhaustion of 'a shuttle while the latter is in the two b O assemgly to move the shiftable assembly down war 4. A loom of the class described, including` a two box assembly located at one side othe loom, a three box assembly located at the other side of thefloom and shiftable upwardly and downwardly to arrange an empty box abovey the path of the shuttles to receive a full shuttle and movable downwardly to carry an' empty shuttle below the shuttle path, means for normally locln'ng the shiftable assembly against upward and downward movement, means operated by the exhaustion `of a shuttle while the latter is inthe two box assembly to move` the shiftable assembly downi. ward, and means -for automatically .ejecting the empty shuttle positively from the assembly.

5. Aloom of the class described, including a two box assembly located at one side of the loom, a shiftable three box assembly located at the other side of the loom, means for simultaneously throwing a pair of r shuttle below the shuttles back and forth from one assembly to the other, means for locking the three box assembly, means operated by the exhaustion of a shuttle while the same is in theptwo box Y the loom, a shiftable three box assembly located at the other side of the loom, means for simultaneously throwing a pair of shuttles back and forth from one assembly to the other, means for normallydocking the three box assembly against movement, means operated vby the exhaustion ofa shuttle while the same is in the two box assembly for unlocking the shiftabl assembly, means for automatically .moving the shiftable assembly downward when theempty shuttle is therein to carry the empty shuttle below the path of the shuttle, and means for positively ej ecting the empty shuttle simultaneously with the throwing of a pair of shuttles to the two box assembly.

7. A loom of the class described, includ- '65 ing a two box assembly located at one `side of the loom, a shiftable three box assembly located-at the other side of the loom, means for simultaneously throwing a ,pair of shuttles back and forth from one assembly to the other, means for 'normally locking the threev box assembly against movement, means operated by the exhaustion of a shuttle while the same is in the two box assemf 'i bly for unlocking the shiftableassembly, means for automatically moving the shiftable assembly downward when vthe empty shuttleis therein to carry the empty shuttle below the p'athfof the shuttle, means for automatically and positively ejecting the empty shuttle simultaneously with' the throwing of a pair of shuttlesf to the,two

box assembly, and means lfor automatically moving the shiftable assembly upwardly to carry an empty box above the path 'of the shuttles to receive a full shuttle.

a twov bx assembly located-at one side of the loom, a shiftable three box assembly located `at the other side of theloom, each `of thev boxes of the three box assembly having a bottom wall and the bottom `walls completely separating the boxes, means for.

esv

s. A100111 of the dass described, including throwing a pair of shuttles back and o`rth from one assemblyl to the other, 'and means operated by the exhaustion of a shuttle while the latter'isin the two box assembly to automatically-'shift thethree box assembly, to carry the empty shuttle beyond the path of the shuttles and a f/ull shuttle into the path of the shuttles;

'9. A loom of the class described, including a two .box assembly located at one side of Vthe loom, a shiftabl'e three box `assembly located at the other sidefo the loom, means for throwinga pair of shuttles back and' forthl from one assembly to the other, means operated by the .exhaustion of a shuttle while thesame is in the two-box assembly to automatically shift the three box assembly to.V

carry the empty shuttle beyond the path of the shuttles and a full shuttle. into the path of the shuttles, and means for automatically and positively ejecting the empty shuttle while-'the shift-able assembly is in such posi- 10. A'loom of the'cla'ss'-described, including a two box assembly located at one side of the loom, a shiftable three box assembly l cated at.the other side of the loom, means for throwing a pair of shuttles back and forth from one assembly to the other, means operated by the exhaustion of a shuttle while the latter is in the two box assembly to automatically shift the three box assembly to carry the empty shuttlenbeyond the path of the shuttles and a 'full shuttle into the path of the shuttles, means for automatically and positively ejecting the empty shuttle while -the-'shiftable assembly is in such positon, and means for automatically shifting the three ian 'I box assembly to carry another of its boxes (at the other side of the loom, means ,for throwing a pair 'of shuttles back and forth from one assembly Vto the other, means Vfor shuttle into the shuttle normally locking the shiftable assembly against such movement, means operated by the 'exhaustion of a shuttle while the same is in the two box assembly for unlocking the shiftable assembly, means for moving the shiftable assembly when the empty shuttle is therein to carry the empty shuttle beyond the path of the shuttles and to carry a full path, and means for automatically andpositively ejecting the empty shuttle. i 12. A loom of the class described, including a two box assembly located at one side of the loom, a three box assembly located at the other side of the loom and having one of its boxes normally located beyond the path of the shuttles, each of the boxes of 'the three box assembly having a bottom wall and the bottom walls completely separating the boxes, means for throwing a pair of shuttles back and forth from one assembly to the other, means for automatically feeding La full shuttle to the said box of the three shuttle assembly, means operated by the exhaustion of a shuttle while the same 1s in the two-box assembly for shifting the three box assembly to carry the said full shuttleJ into the path of the shuttles and the empty shuttle out of the path of the shuttles, and means for automatically discharging-the empty shuttle.

13. A loom .of the class described, including a two box assembly located at one side of the loom, a three box assembly located at the other` side of the loom and having one of its boxes normally'located beyond the path of the shuttles, shuttles back to the other, means for automatically feeding a full shuttle to the said box of the three shuttle assembly, means operated by the exhaustion of a shuttle while the same is in the two-box assembly for shifting the three box assembly to carry the said full shuttle into the path of the' shuttles and the empty shuttle ou ofthe path of the shuttles, means for discharging the empty shuttle from the three' box assembly simultaneously with the movement of a pair of shuttles from the three box assembly to the two box assembly, and meahs for returning the three box assembly toits 14. A loom of the .class described, including a twobox assembly located at one side' of a loom, a threey box assembly located at the oppositeside of,- the loom and shiftable upwardly and downwardly and having one of its means for throwing a pair of b and forth from one assembly.

.within the feeding a full shuttle to the said box of the three shuttle assembly, means operated by the exhaustion of a shuttle while the same is in the two-box assembly to move the three shuttle assembly downward to carry a full shuttle into' the shuttlepath and the empty shuttle to a point below the shuttle path, means for positively ej ecting the empty shuttle from the three shuttle assembly, and means for returning the shiftable assembly to its initial position.

15. A loom of the class described, including a two box assembly located at one side of.

a loom, a three box assembly located atthe opposite side of the loom and shiftable upwardly and downwardly and having one of its boxes normally located above the path of the shuttles, means for throwing a pair of shuttles back and forth from one shuttle assembly to the other, means for automatically feeding, a full shuttle to the said box of the three shuttle assembly, means operated by the exhaustion of a shuttle while the same is in the two-box assembly to move the three shuttle assembly downward to carry a full shuttle into the shuttle'path and the empty shuttle to apoint below the shuttle path, means for positively ejecting the empty shuttle simultaneouslyv with the movement of the pair of shuttles from the three box assembly to the two box assembly, land means for returning `the three box assembly to its initial position prior to the return of the pair of shuttles to the said three box assembly.

`16. A device of the class described, including a two box assembly located at one side of the loom, a three box assembly located at the other side of the loom with one of its boxes arranged normally above the path of the shuttles, each of the boxes of the three boxassemly having abottom wall and the bottom walls completely se arating the boxes, a hopper located' above t e said box in position for automatically feeding a full shuttle to the same, means for throwing a pair of shuttles back and `forth from one assembly to the other, means operated by the exhaustion of a shuttle while the latter is in the two-box assembly for moving the three shuttle assembly downward to carry a full shuttle into the path of the m0 shuttles and the empty shuttle below the Ipath of the vshuttles to discharge the latter, means for returning to its initial position, and automatically operated means for supporting vthe shuttles y hopper while the three shuttle assembly isin its flower position. a

17. vA device of the class described, including a two box assemblylocated at one side of.A

the loom, a three box assembly located at the other side of the loom with one of its'boxes the threeshuttle box assembly means for throwing a pair assembly to its initial position, device movable into and arranged normally above the path of the shuttles, each of the boxes of the three box assembly having a bottom wall and the bottom walls completely sepa-rating the boxes, a hopper located above the said box in position for automatically feeding a full shuttle to the same, of shuttles back and forth from one assembly to the other, means operated by the exhaustion of a shuttle while the latter is in the two-box assembly for moving the three shuttle assembly downward to carry a full shuttle into the shuttles and the empty shuttle below lthe path of the shuttles to dlscharge the latter, means for returning the three shuttle box a supporting out of `the hopper for supporting the shuttles within the hopsimultaneously a pair sition.

per when the three box assembly is in its lowered position, and means for automatically operating the supporting device when the three .box assembly is raised and lowered.

18. A device of the class described, including a two box assembly located at one side of the loom, a three box assembly located at the other side of the loom with one of its boxes arranged normally above the path of the shuttles, a hopper located above the said box in position for automatically feeding a full shuttle to the same, means for throwing a pair of shuttles back and forth from one assembly to the other, means operated by the exhaustion of a shuttle while the latter is in the two box assembly for lmoving the three shuttle 'assem ly downward to carry a yfull shuttle into the path of the shuttles and the empty shuttle below the pathof the shuttles to discharge the latter, means for returning the three shuttle box assembly to its initial position, spaced shuttle supporting plates pivotally mounted on the three box assembly at the top thereof, and means for swinging the supporting plates .inwardly and outwardly when the three box assembly is raised and lowered to support the shuttles within the hopper when the three box assem ly is in its lowered po- 19. A device of the clamA described, including a two box'"assembly located at one side of the loom, a'thr'ee box assembly located at the other sideof the loom with one of its boxes arranged normally above the path o the shuttles, a hopper locatedabove the said box in position for automatically feeding a full shuttle to the same, means of shuttles back and forth from one assembly to the other, means operated by the exhaustion of a shuttle while the latter is in the two boxassembly for moving the three shuttle assembly downward to carry a full shuttle into the ath of the shuttles and the empty shuttle be ow the path of thev shuttles to discharge the latter, means for returning the three s uttle box assembly to its initial the path ofmovement,

ing a two box assembly located atone the loom, a shiftable f bly,

for throwing position, spaced shuttle supporting plates pivotally mounted bly at the top vthereof and adapted tolswing into and out ofthe hopper to support the shuttles therein when the three box assembly is in its lowered position, means for connecting the plates for causing .the same to move simultaneously toward and from each other, and means for plates when t 'e said three raised and lowered. l

20. A loom of the class described, includbox assembly is ing a two box assembly located at one side of the loom, a 4shiftable three box assembly located at the other side of the' loom and' cooperating with the two boxv assembly and movable upwardly and downwardly to carry upon the three box assemautomatically actuating the one shuttle box above the path of the shuttles v to receive a full shuttle and another box below'the path of the shuttles to discharge an empty shuttle, meansfor raising and lowering the three shu lebox assembly` comprising a continuously rotat' cam having two concentric portions of di erent diameters, a cam actuated lever having an arm arranged to be engaged by the cam, means for connecting the three box assembly with the said lever, locking means for holding the said lever out of engagement with the cam to hold the three box assembly normally against and means operated by the exhaustion of a shuttle while the latter is in the two box assembly for. moving the lever out of engagement with the cam actuated lever to permit the latter toshift the three box assembly.

21. A loom ofthe class described,I includside of three box assembly lo'- cated at the other side ofthe loom and cooperating with the two boxv assembly and movable upwardly and downwardly to carry one shuttle box above the path of the shuttles to receive a full shuttle and another box 'be- 'low the path of theshuttles to discharge an empty shuttle, means for raising and lowering the three shuttle box assemblyr comprising a continuously rotating cam having two concentric portions of different diameters, a cam actuated lever having an arm arranged to be en aged by the cam, a vertically movable standard supporting the three box assemends and having arms connected with the standard and 'th the cam. actuated lever, a rocking lever arranged to engage and the cam actuated lever out of engagement with the cam, and means operated by the exhaustion of a'shuttle while the `latter is in the two box assembly for moving the rocking lever out of engagement with the cam actuated-lever to'permit the cam -to lowerv and raise the three box assembly. i

22. A loom of the class ing a two box assembly located at. one slde hold a connecting lever pivoted between its deseribea'indadof the loom, a s'hiftable three box assembly located at the other side of the loom and cooperating with the two box assembly and movable upwardly and downwardly to carry one shuttle box above the path of the shuttles to receive a full shuttle and another box below the path of the shuttlesto discharge an f the rockl the exhaustion of a shuttle while the latter the rocking lever operating means to permit the cam actuated lever to be engaged by the cam for lowering and raising the threefbox assembly.Y

23. A loom of the class described, including a two box assembly located at one side of the loom, a shiftable three box assembly located at the other side of the loom and cooperating with th shuttle box above the path of the shuttles to receive a full shuttle and another box below the path of the shuttles to discharge an emp tric portions of dilierent diameters, a cam actuated lever having an arm arranged to be engaged by the cam, means t e three box assembly with the said lever,

austion of a shutmeans pera'tedby the exh two box assembly tle while the latter 1s 1n the Shift bly, and means carwith the'cam for preventing the cam actuated lever from operating should the same be 11nlocked out of time.

24. A loom of the class described including a two box assembly located at one side of the kmovable upwardly and downwardly'tocarry one box above the shuttle path to receive a fulll shuttle and another below the shuttle lever pivoted between l and movable upwardly and d n contlnuously e two box assembly and movl able upwardly and downwardly to carry one t g shiftable upwardly and empty shuttle,

by the cam actuated lever for contacting t path to discharge an empty shuttle, a conhaving concentric tlnuously rotating cam portions of different diameters; a cam actuated lever having means engageable with the cam for oscilla-ting the lever, necting the operating posithe said locking y the exhaustion is in the two box tion, an operating device for means, and means operated b of a shuttle while the latter the class described includox assembly located at one side of the lay of the loom, a shiftable three box assembly located at the other side of the lay cooperating with the two box assembly carry one box above the shuttle path to receive a full shuttle and another below the shuttle path to discharge an empty shuttle. a

rotating cam portions of different diameters, a cam actuated lever having means engageable with the cam for oscillating the lever, means for connectingthe lever with the three box assembly a pawl carried by the lay and'movable om a. position for actuating the 0perating lever, and means operated by the exhaustion of a shuttle while the latter is in the two box assembly for actuating the pawl: f

side of the lay and downwardly to arrange one box above the path of the shuttles to receive a full shuttle and another box below the path of the shuttles to discharge an a reciprocating ejecting slide carried by the lay and arrangedto eng the shuttle in the shuttles to discharge an empty shuttle, a reciprocating'ejecting slide carried by the lay7 and arranged to engage the l 1,7os,s25

5 slide, an ejecting arm carried by the lever and movable into and out of the path of the lay, and means carried by the three box assembly for moving the ejector arm into the path of the picker stick when the three box assembly -moves downwardly. f l

28. A loom of the class described, including a two box assembly located at one side of the lay of the loom, a three box assembly arranged at the other side of the lay and shiftable upwardly anddownwardly to arrange one box above the path of the shuttles to receive a full shuttle and another box below the path-of the shuttles to discharge an empty shuttle, a reciprocating ejecting slide carried by the lay and arranged to engage the shuttle in the box below the path of travel of the shuttles when the three box assembly is' lowered, a pivoted ejecting lever, means for connecting the'ejecting lever with the slide, an ejector arm carried by the lever and movable into and out of the path of the picker stick, and a vertically movable standard carrying the three box assembly and havinga tapered portion arranged to move the ejecting arm into ythe path ofthe picker stick Vwhen the three box assembly moves downwardly. C

'29. A loom of the class described including a three box assembly located at one side of the lay of the loom and movable upwardly and downwardly to arrange vone of its boxes above the path of the shuttles to receive a full shuttle and another box below the pathof the. shuttles to discharge an empty shuttle, a reciprocating ejecting slide carried by the lay and arranged to engage a shuttle in the box below the shuttle path when the assembly is moved downward, a pivoted ejecting lever, a second lever pivoted between its ends and connected at one end to the ejecting lever, a

link connecting the other end of the said second lever with the slide,- a laterally swinging ejector arnrcarried bythe ejector lever and movable into and'out of the path of the of the path o the picker stick, and means 'movable upwardly and downwardly with the assembly for actuating the ejector armto move the sameinto the path of the picker stick when the assembly moves downwardly.

30.. A loom of the class described including a three box assembly located,- at one'side of the lay of the loom and movable upwardly and downwardly to arrange one of its bxes above the path of theshuttles to receive a full shuttle and another box below the path of -the shuttles to discharge an empty shuttle, a reciprocating ejecting slide carried by the lay and arranged to engage a shuttle in the box v 'i -65 below theshuttlepath'when the assembly is picker stickand normally maintained outmoved downward, a pivoted ejecting lever, a second lever pivoted between its ends and connected at one end to the ejecting lever, a link connecting the other 4end of the said second lever withthe slide, a laterally swinging ejeclor arm carried by the ejectin'glever and` movable into and out of the path of the picker stick and normally maintained out of the path of the pickerstick, a vertically movable standard supporting the said assembly, and a cone collar mounted on the standard 'and arranged to move the ejector arm into the path of the picker stick whenthe assembly moves downwardly.

31. A loom of the class described including a three box assembly located at one side of the lay of the loom and movable upwardly and downwardly to arrange one of ils boxesv above the path of the shuttles to receive a full shuttle and another box below the path of the shuttles to discharge an empty shuttle, a4 picker stick, a movable bumper carried by the lay and normally arranged to limit the backward movement of the icker stick, and means carried by the assem ly .and arranged to engage the bumper and move the same from iis normal positin when the assembly moves downward to permit the head of the picker stick to clear the shuttles during the down-` ward and upward movement ofthe assembly.

32. A loom of the class described including a three box assembly located' at'one side of the lay of the loom and movable upwardly and downwardly to arrange one'of its boxes above the path 'of the shuttles to receive a full shuttle and anotherl box^below the path of the shuttles to discharge an empty shuttle, a picker'stick, a pivoted bumper carried by the lay, yieldable means for normally maintaining the bumper in position for limiting the backward movement of .the picker stick, and an abutment carried by the said assembly for moving the bumper out of its normal position topermit the picker stick to move backwardly away from the shuttles during assembly. 33. A loom of the class described including a three box assembly located at one side `ofthe lay of the loom-and movable upwardly and downwardly to varrange oneof its boxes above the path of the shuttles to receivea full shuttle andfanother box below the downward and upward movementvof the the path -of theV shuttles to discharge an 1 i :empty shuttle, a movable knife arranged to sever the'thread of a shuttle in the box below the shuttle path, and meansactuated b the lay ofthe loom for operating the kni e when the assembly is moved downward.

of the shuttles toy discharge ,anempty shutvtle, .a slidable knife arranged to' sever the thread of ashuttle in the box below the shuttle patli when the said assembly is lowered, a lever connected with and adapted to r'eciprocate the knife, and an abutment carried by the said assembly andl nornially'arranged to clear the said lever during the movements of the lay and arranged to be carried by the downward movement of the assemblx into position for engaging the lever.

35. A loom of the class described including a three box assembly located at one side of the lay of the loom and movable upwardly and ydownwardly to arrange one of its boxes above the path of the shuttles `to receive a full shuttle and another box below the path of the shuttles to discharge an empty shuttle, ejecting mechanismior discharging `an empty shuttle from the box below the shuttle path, a protector finger normally arranged in an operative position, and mechanism for moving the protector finger into position forv stopping the loom, comprising a circuit closing device having a member mounted on the said assemblyand arranged to be engaged by a shuttle in the box below the shuttle path for closing the circuit and automatically movable to o en the circuit when the said shuttle is discharged.

36. A loom of the class described including a three box assembly located at 'one side of the'lay of the loom andmovable u wardly and downwardly to arrange y011e of its boxes above the path of the shuttles to receive a full shuttle and another box below the path of the shuttles to discharge anempty shuttle, f ejecting mechanism for discharging .an empty shuttle from the box below the shuttle path, a protector finger normally arranged r1n an operative position, and mechanism .for moving the protector linger into position for stopping 'the loom, com rising a circuit closing device, 'a vmember pivoted to the .said assembly and-arranged to extend into the shuttle box below the shuttle path and adapted to be engaged and moved outwardly by a. shuttle in the saidvbox, and spring contacts maintainedxclosed by said member when engaged bysaid shuttle, said spring contacts\ opening automatically when the shuttle isdischarged and the said member relieved of A pressure. y

37. Aloom ofthe class described including afthree boxlassembly located at one side of the lay ofthe loom and movable upward-- ly and downwardly to arrange one of its boxes above the path of the shuttles to relceive a full shuttle and another box below the path of the shuttles to discharge an empty shuttle, ejecting mechanism for discharging an empty shuttle from t e box below the shuttle path, a protector ger normally arranged m an operative position, and mechanism for'movmg the protector finger unto -lng a three bx assembly located at one side .lever will be actuated when position for stopping the loom, comprising I a circuit closing devlce'arranged to be engaged by a shuttle in the box below the shuttle path, a solenoid in circuit'with the ciruit closing, device, and means actuated by said solenoid for engaging the finger. and

movingthe same to its loom stopping position.

A 38. A loom of the class described includof the lay of the loom and movable upwardly and downwardly to arrange one of itslboXes above the path'of the shuttles to receive a .full shuttle and another box'below thev path of the shuttles to discharge an, empty shuttle, ejecting mechanism for discharging an empty shuttle from the boxbelow the shuttle path,'a protector linger normally arranged in an operative position, and mechanism for moving the protector finger into position for stopping the loom, comprising a circuitclos` ing device arranged to be engaged by a shuttle in the box below the shuttle path, a solenoid in circuit with the 4circuit closing device, a lever arranged to swing and move thenger to its loom stopping position, 'eldable means for holding the lever out o` contact with the finger, and means for connecting the lever with the solenoid whereby the closed.

In testimony whereof'we have hereunto set our hands this 17th day of October, 1928. .r'

\ ALPH w. vKNowLToN.

HAROLD c. BENNETT.

los

the ciruit is 95