US1200500A - Loom. - Google Patents

Description

' s. S/JACKSON.

LOOM. APPLICATION FILED Amaze. 1912.

. Patented Oct. 10, 1916.

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.-s. JACKSON.

LOOM.

APPLICATION FILED AUG.28, 1912.

Patented, Oct. 10, 1916.

7 SHEETSSHEET 3- Witnesses.-

S. S- JACKSGN! LOOM. APPLICATION FILED AUG.28. 1912.

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611w k 14 I @059. QMQM Patented Oct. 10, 1916.

S.S. JACKSON.

LOOM.

APPLICATION FILED AUGZZB. I912. mmml Patented Oct. 10, 1916.

7 SHEETSS HEET 6.

S. S. IACKSON.

LOOML APPLICATION'IFIUED AUG.2B. 1912.

Pz ztented Oct. 10,1916.

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SIMEON s. JACKSON, or BOSTON,

MASSACHUSETTS, ASSIGNOR TO THE STAFFORD COMPANY, OF READVILLE, BOSTON, MASSACHUSETTS, A CORPORATION OF NEW JERSEY.

LOOM.

Application filed August 28, 1912.

ereuee being had therein to the accompanying drawings.

The invention relates to looms of the class in which replenishment'or' change of weft ()rfilllllfl: is effected 'automat sally by introducing' into a shuttle on the lay of a. loom a bobbin or other carrier loaded with weft or filling, and expelling from' such shuttle the weft-carrier previously contained therein.

The invention comprises novel means for delivering loaded weft-carriers successively from the hopper or magazine therefor to the means for transferring the same. Also, transferringdevices comprising; means by which a loaded weft-mrrier supplied by the said hopper or magazine is moved into position adjacent a shuttle. onthe lay of a loom,

and means by which the said weft-carrier is introduced into the said shuttle to take the place of the weft-carrier previously contained therein. in the preferred embodiment of the invention the latter means, or transferrer proper. is mounted upon the lay. Also. a chute for the expelled weft carrier ha ring ope 'ative connection with the said means for moving); the loaded weftearrier. whereby, when such means is moved to present the loaded weft-carrier in readiness to be. intrmluced into the shuttle, the said chute also is moved into a working position to receive the expelled weft-carrier, and when the said in ans is returned to its normal position the chute also is retracted out of the way of the working nection with the lay. Also, the combination of the said transferring devices with a ehange-shaf t by means of which such parts 1 are actuated. Also, the combination with the transferring devices embracing the different means aforesaid, and the changeshaft, of means for suspending the operation of the weaving instrumentalities for the performance of the change-operations and subsequently automatlcally causing such Specification of Letters Patent.

parts in confront-plate of the shuttle-box on Patented Oetxifi, i916.

Serial No. 717,444.

instrumentalities to resume operation, and various novel combinations of parts.

An embodiment of the invention is shown in the drawings, in which latter- Figure 1 is a side elevation of portions of a loom at the replenishing side thereof, with the said embodiment applied thereto. Fig. 2 is a side elevation of the driving side of such loom. Fig. 3 is a front elevation of the parts at that side of the loom which is represented in- Fig. 1. Fig. 4L is a front elevation of the parts at that side which is,

represented in Fig. 2 Fi is a vlew on an enlarged scale showing in side elevation the hopper or magazine and the carrier for taking a loaded weft-carrier rearward toward the lay. Fig. 6 shows the parts of; Fig. 5 .in front elevation. rim-7 is a top view thereof. Fig. 8 is a' sectional view of portions thereof. Fig. 9 shows in side ele fation portions of the lay, the transferrer or pusher, and the shuttle-positioning devices; Fi 10 shows in front elevation theparts of Fig. 9, with the addition of the actuating lever. can, and a portion of the change-shaft. of the parts of Fig. 9. Fig. 12 is a side elevation of the lever, cam, etc. hown in the lower part of Fig. '10. Figs. 13, 1%, and 15 are respectively a. side elevation. front elevation. and plan view of certain of the parts for actuatingthe change-shaft and controlling the actuation thereof.

The drawings show a construction and arrangement providing for inserting the fresh weft-carrier downward into the open top of the shuttle and expelling" the previous weft-carrier downward through the open bottom of the shuttle and an opening in the lay beam. Such is the preferred construction and arrangement. but the inventioiris not necessarily restricted in all instances to downward insertion and expnlsion.

Having;- reference to the drawings, 1 is the loom-frame. the breast-beam being marked 2 in Figs. 3, d, (3, and 7. I

At 3, 3, Figs. 1 and .2, are the lav-swords, 4, 4. being the lay pitmen, and 5 being the crank-shaft. 6 is the lay-beam. 7 is the the end of the lay at the replenthingf side of the loom, 8 (Figs. 1 and 9) the shuttle-box back, '9

F in 11. is a'plan view ward toward the lay,

I 'loom thearm will (Figs. 1 and 9) the binder, and 10 the topplate of the shuttle-box 11, Figs. 1 and 3, is one of the pickersticks, and 12 is the pickeumounted thereon. These are all ordinary parts of a loom.

.13, Figs. 9, 10 and 11, is a shuttle voccupying the shuttle-box, it beinga self-threading shuttle of the usual character employed in loomsoftbe class aforesaid.

A hopper or magazine for loaded weftcarriers'is shown at 14, Figs. 1, ,3, to 8. Shuttle- bobbins 15, 15, filled with'weft or filling are shown therein- Y The said hopper or magazine has combined means for deliveringthe weftcarriers successively to the transferring carrier. means will presently'be described.

Referr ing to the transferring devices, 16,

' Figs. 1, 3, and 5 to 8, is a carrier. It is con- .structed to receive a loaded weft-carrier from thehopper or magazine, and has com; bined therewith means for. moving it real"- to present suclrwefb carrier to the action of the device-which in-' troduces the weft-carrier into the shuttle,- and for subsequently moving it forward to 1 receive the next weft-carrier from the hop-v per or magazine.

17, Figs. 1,9, 10 and 11, is a devicef or transferring the weft-carrierfrom the .car.-" It has combined with 'it I to push the weft;carrier,

rier to the shuttle. means for moving it held by the carrier from the'latterinto the shuttle occupying the shuttle-box, and then retracting the transferrer from the shuttle. 18, Figs. 1 and 3, is a chute by which the weft-carrier just expelled from the shuttle is; deflected into a receiving-box '19 therefor."

The said chute normally occupies an idle forward position,.as in Fig. 1, out of the way and other parts in connecof the picker-stick tion with the lay. It is caused to move rearward at the same time that. the carrier-does,

and to assume a' position to receive upon its surface the weft-carrier that is expelled from the shuttle, afterward moving'- forward simultaneously with the carrier and remaining in its idle position until the carrier is again moved rearward to the lay.

20, Figs, 9,10, and 11 isa shuttle-positioning arm. The said arm occupies nor mally an upraised position above the path'of the moving shuttle, as infsaid figures, and,

when called into action is caused to swing downward and outward in a vertical I softhat if the shitttle, after coming to rest,'should occupy a position misplaced towardthe middle of the end of the shuttle, andmove the latter out ,ward within the shuttle-box into the position required to enable it to receive the weftcarrier that is pushed into the shuttle-cavity .by the action of the pusher, Afterhaving positioned the shuttle, the aim 20 rises into therewith Such .shaft will presently be ,a two-part stand 14 frame at the end of "said-end of the rod or sub- .engage with the inner.

its normal position above the path of the shuttle.

So far as the carrier 16, transferrer l7, chute 18, and shuttle-positioner 20, more broadly considered, are concerned, the precise mechanical arrangements for actuating the same are not material; nor are the manner and'means of determining the time of action thereof.

Having regard to the more specific phases of the invention, on the other hand, the invention includes among its features the combination of the said devices with a change- :shaft whereby they are operatively controlled. The change shaft is shown at 210. The manner and means whereby in this embodiment of theinvention the saiddei'ices are operativel y combined described. The change-shaft normally does not rotate, but at the'rer'juired time is called into actionby either weft-detecting or pattern-devicesand thereupon through its rotationand its controlyof the devices aforesaid brings about the-change of weft carriers in the shuttle. Preferably, the invention is employed in a loom. in which the action of the weaving lnstrumentahties is arrested Y automatically for the change, the change-shaft being called into action, and whenthe change has been,

e iiectuated the weaving instrumentalities are restarted and the change-shaft ceasesits rotation. A loom on this order, but changing shuttles insteadof changing weft carriers in a shuttlelon tbe'lay, is shown and described my prior Patent No. 945,722, dated Jan.

theu 'Jright hopper -type, it having side-' guides '14",-14, for the heads and tips of the weft-carriers 15. 'For its support, it is furnished with ears 14", 14 Fig. 3, fitting upon a horizontal rod 14, the inner end of which occupies a socket14 in the upper portion of rising from the loomthe breast-beam 2, the being secured in said socket bX clamp-screws 14, 14'. The position of' t he'h pper or magazine laterally 'upon the. supporting-rod is adjustably de- .terni'ined by means of H a collar 14, and a hub 14?, which are fixed by clamp-screws 14', 14, upon the rod 14 zine to yield seas to obviate'breakage in case forwardly-acting pressure should be exerted against the lower portion; thereof, .as

with the changeat opposite sides of one of the-ears 14*. To enable the hopper or magic 1,200,500 &

ed in the drawings by means of a contracting spiral spring 14, having oneend thereof engaged with the upper portion of the hopper or magazine and its lower end entj gagged withan arm 14' forming part of zine may be ra sed or lowered, to dispose its lower end at the proper height with reference to the path of the carrier, by shifting the upper part of the two-part stand 14 vertically upon the lower part thereof, suitable slots being provided in connection with the bolts 14;, 1e, Fi G, which hold the two parts in fixed connection. The hopper or magazine may be shifted transversely, either by shi ting the suppm'ting-rod 14 endwise throu h socket Mhor by shifting the collar 1m, hub 14:, and hopper 'or magazine atom; the said su niorting-rod. Theinclination of the hopper or magazine when in a state of rest may be varied by angular adjustment of hub 14 and its arm 14* around the.supporting-rod.

Toprovide a place of attachment or holder for the free ends of the weft or filling threads which are carried. by the weft-carriers 15 in. thehopper or magazine, a pin 21 projects outward from the latter and has applied to its outer end a hub 21,-upon which the said ends are wrapped by the weaver, the portions leading from the weftcarriers to the said hub being led rearward and caught in a fork 22 in an arm 22 projecting fron'i hub 21 rearward in line with the outer end of the lay, and a little above the level of the shuttle-box. The said fork is elnployedin order to aid in causing the weft or fillingof a weft-carrier which has just been introduced into a shuttle on the layto enter the self-threading delivery-eye of such shuttle as the latter makes its first flight toward the opposite side of'the loom. 'lhis fork holds the weft end in such positionthat as the shuttle makes its first flight, the portion of yarn or thread extending from the weft-carrier that has just been placed in the shuttle to the fork findsits way naturally into the sclf-thremling: eye.

The means for foedingthc weft-carriers that are contained in the hopper or magzu.

zine one at a time to the. carrier 16 is on the cscapcinent order. it is shown in Figs. 1, 3, and 5 to 8. A small roeksl'iaft 23 is "mounted in hearings in the cars 14, 14,

on the front of the hopper or magazine. This rockshaft has fixedly mounted thereon.

or magazine.

two depending arms 23*, 23", provided at their lower endavith rearwardly facing detents. By means of a contracting spiral spring 24., which is'engaged with a rearwardly-projecting lug upon the inner end of the rockshaft 23, these detents are caused to project rearwardly into the interior of the hopper or magazine into position to receive thereon the head and tip, respectively, of the lowermost weft- :arrier in the hopper They thus support the said weft-carrier and also the others above the same. \Vhen forward movement of the carrier 16 carries it toward position to receive a weft-earrieiya pin 25 mounted on the carrier engages a projection 25 from arm 23", and rocks the rockshaft 23 to swing both dotents forward so as to release the lowermost weft-carrier and permit it to enterthe carrier 16, which at that instant presents its receiving portions in line with the deliveryportions of the side-guides of the hopper or magazine. The other weft-carriers are prevented fro'n passin down, by means of a presser-finge 26 that is fixed upon a rock shaft 27 mountedin a'bearing at the rear of the ho iper or magazine. When the detents are withdrawn forwardly, the pressurtinger is drawn forward against the exterior of the yarn-mass upon the next to the lowermost weft-carrier, by means of a. contracting spiral spring); 28 extending from an arm 23 fixed on rockshaft 23 to an arm 27 fixed on rockshaft 27. When the carrier 16 moves rearward, taking with it the weft-carrier it has just received from the hopper or map,-

77 azine, the spriin 24 acts to rock the rock'- shaft 23 reversely to swinf), the detents into position again. and in this rocking movement of the said r 1ckshaft its arm- 23 acts against arm 27 to rock the rockshaft 27 so as to remove the presser 2.6 from engagement with the weft-carrier which is now the lowermost. 'lhereupon the weft-carriers drop until the lowermost one comes to rest upon the detents.

A shelf 29, Figs. 1, 3, and (3, projects 'rearwardly from the hopper or magazine below the position occupied by the carrier 16 when it receives a weftcarricr, so as to prevent the latter from passing through the carrier .16. The carrier 1(i'is provided with opposite side-pieces spaced apart sufiiciently to receive between them the length of a weft-carrier, as in Figs. (3 and 7, and having inwardly facing lips 161, 161, as in Figs. 5, 7, and S, for engagement with the head and tip of a. weftearrier. at the rea r of the latter. l lat springs, 162, 162, are attached by their forward ends to lugs projecting inwardly from the said side pieces. The rear portions of the said springs incline downward and rearward toward the lips 161., 161. The latter curve forward and downward. A Weft-carrier descending carrier 16 has been moved rearward away from the shelf. hen the carrier 16 has presented the weft-carrier in position to enter the shuttle, the springs will yield to permit pressure applied by the transferrer to push the \\'eitcarrier fronrthe carrier 16' T intothe shuttle.

. For the support and actuation of the'carrier '16 it is mounted upon the upper end of an arm 163, Figs. 1 and 2, which latter is mounted at its lower end upon a pivot 164 carried by the loom-frame. Such arm carries a roll 165,-Fig. 3, which is held pressed against a cam 166 on change-shaft 210 by means ofa contracting spiral spring- 167, Fig. 1. To insure proper register of the carrier 16 with the interior of the hopper and with that of the shuttle on the lay, a guide-piece 168, Figs. 1 and 3, is fixed upon the loom-frame, the said guide-piece having a slot which is occupied by the arm 163. The walls of said slot confine the arm laterally, and guide it in its movements. 7

In the rearward movement of the carrier that is produced by spring 167 when the latter is permitted to 'move the carrier, it passes above the front-plate 7 of the shuttle-box on'the adjacent end of the lay, at

p a height'slightly above that of a shuttle oceupyingsuch shuttle-box, until the weftcarrier which it holds is presented in position to properly enter such "shuttle. An ad-- ustable stop screw 169 carried by the crossar 16* ofthe carrier serves by its contact with some part of the lay to arrest the carrier in the proper position withrelation to the shuttle.

For the purpose of moving the chute 18 from the forwardly-retracted position occupied by it in Fig. 1 to a working position beneath, the shuttle-box, so that it may receive the Weft-carrier expelled ,from 'the shuttle, when such weft-carrier drops, and deflect it into the receiving-box 19, and of afterward restoring the chute to ii position inFig. 1. the chute is afiixed to a. bracket.

181 which in turn-is mounted upon arm 163. asshown'iu Figs. 1 and 3.

The transferrer 17. bywhich the weftcarrier is transferred from carrier 16 to the shuttle in the shuttle-box of the lay at the replenishing of the 100111,. is substantially like. transferrers heretofore employed in looms of the same general class, but is fixed upon a rockshaft 171 (Figs. 1, 9, 10

'and 11) mounted: in three bearings, .one

thereof provided in an arm 172 forming part of the top-plate 10 of-the shuttle-box,

one in a stand 172 bolted to the said topplate as shown in Figs. 10 and 11, and one in a stand 172 bolted to the back of the lay-beam. said arm and stands projecting at.

Hence, the transferrer is carried by the lay and moves forwardfland the back of the lay.

back in'unison therewith. The transfer-rei- 1s operatlvely comblned with the changeshaft'210 by means of a rod 173, lever 174, i

and cam 175 on the change-shaft, the said lever being held in contact with the said cam by the action of a contracting spiral spri ng 176. By the action of the said cam the transferrer is depressed after the carrier has taken position above the shuttle in the shuttle-box, so as to push the weftcarrierfrom the carrier into the shuttle, the

, entering weft-carrier expelling the one previously contained in the shuttle, as usual. The spring 176 ralses the transferre'r to its idle posltion again.

The shuttle-positioning arm 20 (Figs. 9,

10 and 11 has a slot 201 therein to receive the shuttle-tip. The said armis fixed upon the forward end of a rockshaft 202, extending from front to rear and mounted in bearings upon the stand 172 bolted as aforesaid upon the top-plate 10. For the actuation of the shuttle-positioning arm 20, an arm 201 is mounted upon the rear end of rockshaft 202. Such arm is joined by a connectingrod 205 to a lever 206 that is held in en'- gagement with a cam 207 on change-shaft 210 by means of a contracting spiral spring 208. In order to enable the shuttle-positioning arm 20 to yield in its positioning movement, in case it descends upon a misplaced shuttle, and thereby avoid breakage of parts and injury to the shuttle, the arm 204 is loose upon rockshaft 202 and is connected by a contracting spiral spring 209 with an arm 2O that is fixed upon the said ro'ckshaft. By the tension of the spring,

stops 20 and 20 with which the arms 20 1 'and 20 are provided are held in contact with each other. When cam 207 produces movement of arm 204 the spring 209 flmses arm 20, rockshaft 202, and the shuttle- I positioning arm 20, to move in unison with arm 204, and the shuttle-positioning arm is thereby caused to act to position a shuttle occupying the shuttle-box. Should the shuttle-positioning arm descend vupon the .shuttle the spring 209 will yield, allowing the shuttle-positioning arm to be arrested while arm 204 completes its movement.

During the regular operation of the loom the parts concerned in making change of weft-carriers remain in the positions represented in the drawings, with the carrier 16 holding a weft-carrier and occupying an intermediate position between the hopper or magazine and the lay. WVhen the change is called and the change-shaft begins. o rotate the carrier 16 is moved rearward until it meets the lay, taking a position above the shuttle-box and presenting the weft-carrier between the shuttle and the transferrer. The chute 18, moving rearward in unison with the carrier 16, takes a position under the opening in the lay through which the expelled weft-carrier will presently pass. The shuttle-positioner having been actuated to position the shuttle in the shuttle-box, the transferrer is caused to act, transferring the fresh weft-carrier from carrier 16 to the shuttle and expelling the previous weftcarrier from the shuttle, the expelled weft,

carrier falling upon the chute and being de fiected thereby into the receptacle 19. The shuttle-positioning arm and transferrer rise to normal position, and the carrier 16 and chute move forward. The forward movement carries the carrier 16 far enough to cause its pin 25 to operate the detents of the hopper or magazine torelease the lowermost weft-carrier, such weft carrier dropping into the carrier, while presser 26 is caused to bear against the next succeeding weft-carrier to prevent the same from dropping. T he carrier moves rearward to its intermediate position shown in Fig. 1. This releases the detents, which swing rearward into working positionand at the same time the presser 26 is moved to release the weftcarrier held thereby, such weft-carrier dropping upon the detentsf The operations thus having been completed, the changeshaft ceases its rotation and the change mechanism comes to rest. 4

The 'means for actuating the change-shaft 210, and the means for calling the said shaft into action, may vary. Figs. 2, 4, 13, li. and 15 show devices and arrangements for the said purposes. In these figures, 30 is a wori'n-gear mo'untcd loosely upon the changeshaft 210 and kept in continuous rotation by means of a worm 31 in engagement therewith, such worm being fixed upon the lower end of an inclined shaft 32 carrying at its upper end a bevel pinion 33 meshing with a bevel gear-wheel 34 fixed to and rotating with a continuously driven bandpulley 35 loose upon the crank-shaft 5. A clutch-device for clutching the said wormgear 30 to the change-shaft when it is required to rotate the latter comprises a lever 36 which is pivoted at 361, Figs. 13 and 15, to the hub of a disk 371 fixed on the changeshaft 210, the said lever being adapted it) swing in a plane extending longitudinally of the change-shaft, and being provided upon one arm thereof with a tooth 37 working through a hole in the said disk 371 and adapted to enter the respectiveholes of the circular series of holes formed in the said stand 4:2, and hanging downward from its metrically opposlte from that carrying the pivot. The controlling-arm 40has pivoted thereto at j-l3, 'Fig's. l andl l, a latch L4: working through a slotted fixed guide 45, the said latch having connected therewith a contracting spiral spring 46, Figs. 1 and 14, acting with a tendency to draw the latch and the controlling-arm 10 toward the wheels 2371 and 30, and also to draw the latch downward. Normally, the parts 0ccupy positions that are indicated Figs.

4, 1l, and 15, namely, with the shoulder of the latch it in engagement with the bottom of the slot in the guide 45, and with the tail-end of the clutch-lever 36 in contact with the lateral prominence of the controlling-arm 40, so that the clutch-tooth 37 is drawn out of engagement with the wheel 30, and the said wheel 30 revolves without transmitting rotation to the change-shaft 21.

Figs. 2, and a show ordinary weftfork mechanism, which is represented as in operative control of the driving connections of the change-shaft which have just been described. T hus, a weft-fork is shown at 4&7, etS being the weft-fork slide, 49 being a dog connected with the said slide and adapted I to engage with the upper end of an arm 50 mounted on a rockshaft 51, the latter in turn being mounted at the front of the breast-beam 2, and having a rearwardly and downwardly extending arm 52 from which a wire 53 extends to the latch il. The weft-hammer is shown at 54, Fig. 2, and at is the actuating cam therefor, the said cam being mounted upon the cam-shaft 56,

the latter being driven from the crank-shaft 5 in 'usual manner by means of the gear wheels Wand 58, Figs..2 and 4. hen the weft fails, and in consequence the weft-fork 47 is not tilted. so thatthe weft-hammer engages with the tail of the weft-fork and moves the weft-fork slide 48 forward, this forward movement of,slide 48 causes the (log 49 to engage with the arm 50, and as a result the rockshaft 51 is rocked, and the arm 52 draws upward the wire 53, thereby lifting the latch 4-4 out of engagement with the bottom of the slot in the guide 15, there by permitting iii-111 40 to yield to the pressure transmitted to the same from the spring 39 through the clutch lever 36, so that thetooth 37 of the said clutch lever is allowed to enter the next one of the holes 38 which is presented opposite the same in n n L do again encounters the cam-shaped portion of the controller+arm l0. and the clutch lever is thereby operated to disengage its tooth 37 from the wormrgear 30. The change-shaft thereupon comes to rest.

The various cams upon the change-shaft are. as heretofore contrived to cause the various operations'whic-h are incident to a change of weft-carriers to he performed during one. rotation of the said shaft. .The change-sl1aft is. shown provided with the restarting cam (30, Fig. l. by means of which, on the conclusion of the chaiige-opcrations, the weaving instrilmentalities are restarted automatically through the restarting lever 61. which is held in contact with the said and the rod 62 liearin'g a'collar 63 against which the said, restarting lever acts. the said rod connecting with an arm (H on the ship- 'cam by the contractingspiral spring 176,

ping rockshaft 5 snl)stantiall as in Letters Patent No. 9;t:' ,722 aforesaid. .As in the said Letters Patent. the weft-fork mechanism is connected to occasion a suspension of the working of the weaving instrumentalities for the. change operations at the same time that the change-shaft is called into operation. Thus, the rockshat't 51 is shown provided in Fig. 2 with a toe adapted for engagement with av shoulder 71 of the shipper-handle 72, the latter being fixed upon one end of the shipping rockshaft (35. The

result of such engagement is to throw the 'shipper-hamlle over rearward. This shifts past center the pin 7 connecting to the shipper-handle the upper end of the link T-l connecting with the hell-crank controlling the driving-clntch of the loom-mechanism, the path of the pin 73 being such asto allow link 74; to move downward. v(lensequently the spring 76 connected to the brake-lever 77 carrying the pin 78 which extends over the horizontal arm of said bellcrank is permitted to draw down the brakelever and said horizontal arm, andsimultaneously unclntch the loom-mechanism from band-pulley 35 and apply thebrake. 79 to -bring the weaving instrumentalities to a state of rest. ,VVhen the restarting cam' 60 acts to turn the shipping rockshaft.65 reversely, so as to carry shipper-handle 72 tions.

forward, the return movement of pin 73 moves link 74.- upward and pulls upward the clutch-operating bell-crank 75 and brake-lever 77, thereby'releasing the brake and clutching the weaving instrnmentalities to the band-pulley so as to gestart the loom.

A feature of considerable practical importance is the safety-h ck for the changemechanism. This prevents 'the changemechanism from being tripped into action,

m-cidentallv or otherwise, while the loomshipper 72 is "on and the loom continues uni'nterruptedly its regular weaving opera- It also prevents the change shaft from accidentally becoming clutched to the continuously rotating, wornngear 30 while the loom is standing still during an ordiv nary stoppage ofthe loom, with the-shipper thrown. The said safetjv-lockis shown at 80, Figs. 2, i, 13. 1t. 1' It-comprises a member that is pivoted at 81 to the lower portion of the fixed guide 5 for the latch 44. The said portion of'the said guide is slotted at +5 for the qiivotal mounting of the safety-lock member. to permit of verti- .cal shift of the pivot and the said member to provide for proper engagement of the hooks of the safety-lock'with the top of the latch. The safety-lock member is constructed with upwardly extending arms and 80" between which the'latch' plays up and down. the said arms being formed with shoulders or hooks. each of which is adapted to lit over the top of the latch so-as to hold the latter from rising. The two hooks face each other and are separated by an intervening space through which the latch may pass upward above the hooks or descend be-' tween them. Swinging movement of the safety-lock member in one direction carries one of the hooks a way from the latch and the other into position to engage with the latch to hold it from rising, and movement of said member in the reverse direction carries the latter hook away from the position for engagement with the latch and the other hook into position for such engagement. Thus the hooks are arranged for alternate engagement. A contracting spiral spring 82, that is engaged with a rear\\'ardly-projectiug lug on the safetv-lock tends to hohl the safety-lock in its normal position represented in Figs. 13, ll,'l5, with its rear hook in engagement with thetopof thelatch. The safetv-lock is moved into its oppositeposition through connections with the loom jection8l, Fig. 2. onthe lower end of link 74, and receiving the re m abovethe said pro- ]ect1on a collar 8;) that IS fastened in place by a clamp-screw.

When the loom-shipper is hook over the thrown, as when the loom is stopped, as in Fig. 2, the projection 8d of link 74 is sufliciently below collar 85 to leave the safetylock free to the action of its spring 82., which accordingly holds the safety-lock in the position shown, namely with its rear top of the latch. Consequently the latch cannot be raised by the action of the weft-fork mechanism if the latter is manipulated by hand, or in case the loom is turned over by hand, and it cannot become lifted or thrown up by any accident. Therefore, the change mechanism cannot be started into operation so long as the loom-shipper remains thrown. When the loom-shipper is moved to start the loom, the rise of link 74 as pin 73 passes upward and forward causes projection 84: of the said link to engage collar 85 and move wire 83 upward, turning the safety-lock member so as to swing its rear hook out of engagement with the top of the latch and its front hook into engagement therewith. Consequently, so long as the loom-shipper remains on, and the loom continues in regular operation, the latch cannot be lifted or thrown up either accidentally or by intention.

The only time when the latch can move upward is during the middle portion of the movement of the safety-lock in either direction. The parts are so set and adjusted that when the weft-fork mechanism acts to throw the loomshipper and swing upward the arm 52 to lift the latch 44, the space between the hooks of the safetylock is presented above the said latch at just the right time to permit the automatic lifting of the latch. The latch drops back into its lowered position during the return swing of the safety-lock member as the loom-shipper is restored to on position. 21", Figs. 1 and 5, is a plate that is supported at the outer side of the hopper or magazine and projects rearwardiy beyond thesame. This plate has an inclined rear edge against which the Weft-ends extending from the weft-carriers in the hopper or magazine to the fork 22. rest, and by which they are partly supported as the weft-carriers descend into the lower portion of the hopper or magazine. The said edge guides the weft-ends rearward as they slide down the same in the descent of the weft-carriers, and takes up some of the slack therein. Extending downward from the lower rear corner of plate 21* is a curved extension 21 which prevents the said weftcnds frombeing brushed forward by the carrier 16 as it moves forward into the position to receive the hopper or magazine.

The slmttle-positioning devices have been made the subject of claim in my divisional application filed ahngnst 9, 1M3, Serial lie. 7 83,35?

inclined a fresh weft-carrier from position to enter What is claimed as the invention is 1. In a loom, the combination with the lay, a hopper or magazine for weft-carriers, and means for transferring the weft-carriers successively to a shuttle on the lay, of a de' tent for the lowermost weft-carrier in the hopper or magazine, operated by a member of the transferring means to deliver said weft-carrier to said means, a presser which clamps and detains the next weftcarrier when said del"very takes place, and means for alternating the detent and, presser in their operation.

2. In a loom, the combination with the lay, a hopper or magazine for weft-carriers,

and means for transferring the weft-carriers successively to a shuttle on the lay, of a detent for the lowermost weft-carrier in the hopper or magazine, operated by a member of the transferring means to deliver said weft-carrier to said means, a presser,

a spring by which the presser is caused to clamp and detain the next weftcarrier when said delivery takes place, and means whereby as said detent closes into working position it operates the presser to release the weft-carrier that is detained thereby.

3. In a loom, the combination with the lay, hopper or magazine for weft-carriers, and means for transferring the weft-carriers successively to a shuttle on the lay, of a de tent for'the lowermost weft-carrier in the 5 hopper or magazine, operated by a member of the transferring means to deliver said weft-carrier to said means, a presser,

a spring operatively connecting said detent.

and said presser and acting in the withdrawal of the detent to cause said pr esser to clamp and detain the next succeeding weft-carrier, and means through which-the returning movement of the detent opens said presser'away from the latter we t carrier to release it. 9

4. In aloom, in combination, a hopper or magazine for weftcarriers, means for transferring said weft-carriers successively, a rocker, a detent in connection therewith, a spring actuating said rocker to cause said detent to detain thellowermost weft-carrier in the hopper or magazine, a second rocker, a'presser in connection therewith, means for transmitting movement from the first rocker to the second to retract the resser as the detent is advanced into worzing position, and spring returning the presser to clamp the next higher weft-carrier as the detent is withdrawn to deliver the lOW'Bl'IUOSiZ'WQffi". carrier to the transferring means.

' 5-. in a loom, in combination, a lay a magazine for weft-carriers, an epen-topped carrier, means for loading a weft'carriei from said magazine into said carrier by movement vertically, means for moving said carrier to pres i the said weftinto shuttle on the lay, and

ice

I a shuttle on the lay,

proper register of the means for transferring the weft-carrier from the carrier to the shuttle.

6. In a loom, 1n combination, a lay, a magazine for wet -carr1ers, a carrier which is supplied with 'a weft-carrier from said magazine, means for moving said carrier a lay, a

with the carrier and weft-carrier held by the carrier with the opening of the shuttle, so that said weft-carrier shall be enabled to enter saidopening properly, and a transferrer which inserts said'weft-carri'er into I such shuttle.

' chute operatively weft-carrier receive the movement of 8, In a loom, in combination, a lay, a magazine for weft-carriers, a carrier" which issupplied with a magazine, a transferrer which inserts such Weft-carrier into 'a shuttle y-on the lay, and a change-shaft in operativg'e control of said carrier and transferrer serving through its rotation to effectuate" the operation of the same. 1

9. In a loom, in combination, a lay, a magazine for weft-carriers, a carrier which is supplied with a weft-carrier from said magazine, a transferrer mounted on the lay for inserting such-'weft-carrier into a shuttle on the lay, and a change-shaft in operative control of said'carrier and transferrer and serving through its rotation" to effectuate the operation of the same.

In a. loom, in combination, aaLay, a tion forward, and movable rearward 't0- ward the lay, and a chute for an expelled weft-carrier operatively combined with said carrierand given its working position to expelled weft-carrier by the the carrier toward the lay. 11. In a loom, in combination, a lay, .a

change-shaft, aweft-carrier carrier operatively controlled .by the change-shaft, and a combined with said carr1er and moving simultaneously therewith.

12. In a loom, in combination, a lay, a magazine for weft-carriers, a carrier which is supplied with a weft-carrier from said magazmeja transferrer mounted on the lay.

and a change-shaft operatively combined with said carrier and actuating the latter weft-carrier held' ously toward the lay.

the lay for securingweft-carrler from said .a lock for saiditself operatively carrier having a normal 'posi-' to meet the lay and present its weft-carrier in position to be transferred to a shuttle on the lay, and also operatively combined with said transferrer whereby the latter is actuated to transfer the weft-carrier from the carrier to the shuttle.

13. In a loom, in combination, a lay, a weft-carrier magazine, a carrier which is supplied with a weft-carrier from said magazine, a swinging'supporting-arm for the said carrier, a chute connected with said arm, and means ,for operating.the said arm to move the carrier and chute simultane- In a loom, in combination, a lay, a weft-carrier magazine, 'a carrier which is supplied with a weft-carrier from said ma azine, a swinging supporting-arm for sald carrier, a chute connected with said arm, and a change-shaft operatively combined with said arm.

15. In a loom, 1n combination, a changeshaft, a change-shaft drive, a loom-shipper, devices for tripping the loom-shipper and also tripping said drive into action to operate the chang'e-shaft, and a lock operatively proper time.

16. In a loom, in combination, a changeshaft, a change-shaft drive including a clutch and clutch-controlling means, a loomshipper, devices by which the loom-shipper 1s tripped, and by which also said clutch is tripped to establish driving relations between said drive and the change-shaft, and clutch-controlling means, controlled by said shipper, preventing establishment of relations at an improper time.

17. I11 a'loom, in combinationya lay, a magazine for Weft-carriers, a carrier which is supplied with a weft-carrier from said magazine, means to move said carrier to present the said Weft-carrier into position such loomto enter a shuttle on the lay, means for transferring the weft-carrier from the carrier to the shuttle, and means for suspending the operation of the weaving instrumentalities for the performance of the changeoperations and subsequen ly autonuitically causihg such instrumentali'ties to resume operation.

18. In a loom, in combination, a lay, a magazine for Weft-carriers, a carrier which is supplied with a weft-carrier from said magazine,-means for moving said carrier to present said weft-carrier in position above a shuttle on the lay, a transfer-rel which inserts said weft-carrier nto such shuttle, and

means for suspending the'operation of the Weaving instrumentalities 'for the performance of the change-operations and subsequently automatically causing such instrumentalities toresume operation.

19. In aloom, in combination, a lay, a magazine for weft-carriers, a carrier which is supplied with a weft-carrier from said 7 magazine, means for moving said carrier to present saidweft-carrier in position to enter a shuttle on the lay, a transferrer mounted on the .lay which inserts said W'eftcarrier into such shuttle, and means for suspending the operation of they weaving instrumentalities for the performance of the changeoperations and subsequently automatically causing/such instrumentalities to resume operation. v I a 20, In a loom, incombination, a lay, a magazine for. weft-carriers, a carrier which a is supplied with a weft-carrier from said -magazine, a transferrer which inserts such,

weft-carrier into.- a shuttle .on the day, a

change-shaft in operative control of said carrier and transferrer but inoperative duri-ng the regular workingof the loom, and means-for calling the change-shaft into operation and suspending the operation of the weaving instrumentalities for the perform- .ance of the change-operations and -subsequently causing such instrumentalities to resume operation and the change-shaft to,

become inoperative.

21. In a loom, in combination, a lay, a magazine for Weft-carriers, a carrier which is supplied with a weft-carrier from said magazine, a transferrer mounted on the lay for inserting such weft-carrier into a shuttle on the lay, a change-shaft in operative con trol ofthe said carrier and transferrer, and

means for calling the change-shaft into opv eration and suspending the operationof the weaving instrunientalities for the perform ance of the changeoperations and subse-- quently causing such instrumentalities to resume operation and the change-shaft to become inoperative.

22.'In a loom, in combination, a lay,--a'

magazine for weft-carriers, a carrier which is suppliedwith a" weft-carrier from said magazine, a'transferrer mounted on the lay,'.

a change-shaft operatively combined withsaid carrier and controlling thelatter to meet the lay and present its weft-carrier in strumentalities to resume operation and the change-shaft to become inoperative..

in presence of two witnesses;

a 7 SIMEON S. JACKSON. Witnesses:

CHAS. F. R NDALL, ELSIE A. BAR'r'zscH.

.. In testimony whereof I aflix my signature

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