US2226069A

US2226069A - Shuttleless loom

Info

Publication number: US2226069A
Application number: US309288A
Authority: US
Inventors: Nadcau Elphege
Original assignee: DUNN WORSTED MILLS
Current assignee: DUNN WORSTED MILLS
Priority date: 1939-12-14
Filing date: 1939-12-14
Publication date: 1940-12-24
Anticipated expiration: 1957-12-24

Description

E. NADl-:Au 2,226,069

sHUTTLELEss LOOM Filed Deo. 14, -1939 8 Sheets-Sheet l Dern 24,1940.

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SHUTTLELESS LOOM Filed Dec.

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SHUTTLELESS LOOM Fild' Dec.A 14, 1939 .www www www FWN @VN NDW Filed Dec. 14, 1939 8 sheets-sheet` a www Peienied Dee. 2,4, 1940 .Um-'rap STATESA .PATENTFO'FFICE'f f azzaoss snorrmmss Loom Elphge Nadeau, Woonsock'et, R. I., assigner oi one-half to Dunn Worsted Mills, Woonlocket, ELaccrpol-ationoflthodelsland Application December 14, 1939, serial No. 309,288 2s (ci. 13s-1ct) cision by simple mechanisms. Another object,4 and an important one, is to provide a shutterless lay unit which may be readily substituted for 10 the lay unit ,of the conventional loom. As illustrating the manner of achievement of the various objects of the invention I have shown in the accompanying drawings a practical embodiment oi the invention to which I shall refer inV order 15 that the various novel features involved may be well understood. 1

In the drawings: Figure 1 is a front elevation of the left hand portion of the new apparatus.

Figure 1a is a iront elevation of theright hand portion of the same.r

Figure 2 is a plan .view of the leading portion of a propelling element for a yarn carrier or conveyor. Figure 3 is a plan view of the carrier.

Figure 4 is a side elevation of the leading portion of the propelling element.

Figure 5 is a side elevation oi the carrier. Figure 6 is a front elevation of the carrier.

30 Figure 7 is a plan view of carrier controlling mechanism and yarn feeding, holding and cutting mechanism.

Figure 8 is a partial section through the lay showing the yarn holding 'mechanism of Figure .35 7 in open position.

Figure 9 shows the said nism in closed position.

Figure 10 is a partial section through the lay showing the cutter of Figure 'l in elevation.

Figure 1l is a section substantially on line Il-II of Figure 7.

yarn holding mecha- Figures 12; 13 and 14 show details ofthe carrierv control elements in elevation.

Figure 15 is a plan view of yarn arresting and 45 tensioning mechanism which appeals also in Figure la. 7

Figure 16 is a. partial section through the lay showing the yarn arrestingand tensioning mechl32 of Figure -`31, and

.the yarn feeding mechanism-.as seeny fromV the left 0f :Figure 18.

Figure 20 shows a means for drawing yarn. from a package. l

Figure 21 is a partial section-through the lay showing a portion of the yarn feeding mechanism f A as seen from the right of Figure 18.

Figure 22shows transmission means for driving some of the lay mechanisms from the loom crank shaft.v

Figure 23 is an elevation showing, in part,

means for controlling the yarn feeding mecha- Figure 24 is a plan view of another form of yarn arresting and severing mechanism.

Figure 25 is an elevation of the mechanism of Figure 24. Figure 26 is a partial plan view similar to Figure 24 but showing parts in different relation.

Figure 27 is a. partial elevation similar to Figure 25 but showing parts in dliierent relation. Figure 28 is a section substantially .on line' iI8-28 of Figure 24.

Figure 294 is a .section substantially on line 2s-29er Figure 24.

Figure30 is a fragmentary v iew of `severin mechanism. shown in Figures 24 and 25.

Figure 31 is a plan view of listing mechanism. Figure 32 is a section substantially on line` 32- Figure 33 is an elevation, with parts in section and other parts diagrammatically shown, indicating the relation of the listing mechanism to the lay and harness.

Referring to the drawings, reference numeral 30 generally designates the lay A which includes essentially a cross portion 3| and

swords

32 and 33, Figures 1 and la.. The swords are conventionally spaced and have ttings (not shown) at their lower ends by means of which they may be mounted in a conventional loom frame so that the lay oi.' the present invention is readily substitutable for the conventional lay. The reed 34 is supported between the cross portion 3i and an upper vtransverse member 35 whose ends are secured to upward frame extensions 36 -and 3l.

Secured `on top of cross member 3| is a.v race plate 33 whose extremities are close and substantiaily tangentialto the upper portions of wheels 39 and lil suitably journale'd on lateral frame extensions 4| and 42. Wheels 33 and G0 are peripherally surfaced with material such as semihard rubber. The extension 42 rotatably supports a sprocket 43 which is connectedby a chain with a sprocket 45 secured coaxiaily to wheel 65 justable relative -to the latter by means of the 'clamp nuts shown'. .A follower 82 similarly as- 4|).- Coaxial with sprocket 45 and fixed thereto, is a bevel gear 46 which engages abevel gear 41 fixed on one end of a shaft 48 which is supportedv of a universal joint 54, the other part of the joint being secured to a sleeve 55 in which is telescopi- 56 has fixed thereon a lug 51 which is slidabl'efgin a longitudinal slot' 58 in sleeve 55. The other end of shaft 56 is journaled in a bracket 59 which is carried -freely on one end of the loom. crank shaft 60. A bevel gear 6| fixed on the crank shaft engages a bevel pinion 62 fixed lon shaft 56.

In view of ,the above described connections, y

sprocket 43 is enabled to be driven from the loom crank shaft which is positionally fixed, whereas v:the Alay movement.

Mcauses wheel 40 to be driven sprocket 43 oscillates with the lay. The extensible driving connection 55 56 provides for the movement of the lay toward and away from crank shaft 60, this inconjunction with the universal joint which takes care of the arcuate phase of Rotation of sprocket 43 in the direction of the arrow, Figure la, and likewise through the above mentioned intermediate connections,

` causes wheel 39 to be driven in the direction of t the arroWFig-ure 1. Bevel gears 46 and 41, as

here shown, are of equal size, whereas bevel pinion I is considerably smaller in diameter than bevel gear 52. It therefore follows that wheel 39 is rotated at a substantially slower speed than wheel 40.

Pivoted on extension 36, Figure 1, is an arm' 63 which carries a roller 64, of substantial weight, adapted to roll on the top of wheel 39. A similar roller 65, Figure 1a, carried by a pivoted arm-66, is adapted to roll on the top of wheel 40.

Inverted channel members

61 and 68, Figures 1 and 1a, rest on the ends of race plate 38 and their top walls are apertured to permit movement of rollers 64- cross portion 3| with its upper wall substantially A tangential to the bottoms of the

whe'eis

39 and 40. The left hand end of member 1| is joined with the left end of channel 61 by means of a substantially semi-circular guard 12 of channel section open toward wheel 39 and, the right hand end of member 1| is joined with the right hand end of channel l68 by means of a similar substantially semi-circular guard 13.

A timing shaft 14 is journaled at its ends in `bearings 15 and 16 above shaft 48 and has fixed thereon cams 11 and 18.' Cam 11 cooperates with 'a follower 19 on the end cfa rod 80 which is fixed inan year 8| on arm 63 and is longitudinally ad- Shaft 14 is'rotated at the same speed -as the j crank shaft.

and bottom to provide an oblique edge 92. The cally 'received one end of a shaft 56. The shaft bottom surface projects outwardly beyond wall portion 81 so that a shoulder 85a is provided behind which is a recess 85h. `Pivoted between wall portions 86 and 81 by means of a screw 93 isa substantially triangular lever 94 which carries V a spring pressed ball detent 95 engageable in top and bottom indentations, as at 96, in the inner face of side wall 86 to hold the lever 94 in its upper and lower limits of swing. In Figure 5 the lever is vshownin its upper limit and in Figure 18 in its lower limit. Secured to the forward end of lever 94 through spacer block 91 is a piece of stiff leather or other similar material 98 which,

in the position of parts 'shown in Figure 18, is

closed laterally engaged in a longitudinally extending groove 99 formed in the leading portion of the bottom wall 85. The lower straight edged portion of member 98 constitutes a tongue which has contact substantially throughout its length withA at least the sides of groove 99 when the parts are in the position of Figure 18. By mechanism to be hereinafter described, the tongue is caused to depress a suitably disposed yarn end into the vgroove 99 so that the end is securely gripped between the thus constituted jaws to enable it to be drawn through the shed by the carrier.

Pivoted on a pin |00 which extends horizontally between the rear portion of wall 86 and a rear and lower'extension |0I of wall portion'81, is a fitting |02 which has a transverse slot in which is received one end of a thin flexible strip of metal` |03 by means of screws as shown. Fitting |02 has a portion ||l2ar which underlies a shoulder.

86a at the end of wall 86 so that a one-way hinge joint is provided. This strip of metal is in the form vof a fiat parallel-edged spring steel blade of, for example, .040 of an inch in thickness by .5 of an inch in width and somewhat longer than the reed. It is offset to the opposite side of fitting |02 from portion I02a and itsedges are in planes perpendicular to pin |00, the latter being perpendicular to -wall 86 and spaced substantially above the bottom surface ofthe carrier. By means of this flexible tail piece, which, however, is adapted to push the body portion 84 of the carrier without undue buckling, the carrier is enabled to be driven through an endless path in the following manner:

Assuming the carrier to be in a position somewhat to the left of that shown in Figure 18, and

shafts

48 and 14 to be driven in the manner heretofore described, follower 19 rides down on the low portion o f cam 11 and permits the weight of roller or wheel 64 to rest on the tail V||l3 of the carrier. The tail piece being thus held against the rubber periphery of wheel 39 is engaged by the latter so that the carrier is propelled across vthe race plate 38 at what may be ordinary shuttle speed. The propelling impulse preferably continues until the end of the tail piece leaves the bight of the wheels. This carrier is laterally steadied in its travel by the thus engaged tail piece. As thev carrier traverses the shed, follower 82 rides on the high portion of cam 18, as shown in mme ia, eo um rener se s elevated in time enough to permit the carrier to pass between it and wheel 40.VV When the carrier has passed this point, follower 02 rides down on cam 13 so that '5 roller 65 drops on tail piece A|03 and a driving impulse, which is preferably continued until the tail piece has from beneath theroller, is again imparted to the carrier and the latter. following around guard 13, through tunnel member 1|, and upward through guard 12, completes its circuits, roller 04 having been timely raised by cam 11 to provide clearance. In this way drivend of the raceway and itis driven in an endless l5 path which is supported by the lay'. The useful traveler thecarrier, as herein contemplated, is conned to that along the top of the track, and, as has been above stated, this may be at the usual shuttle speed. The remainder of the travel may be much faster and it is for this reason that wheel 40 is arranged to be driven at a higher speed than wheel 39.

As has been above stated, the edge of tall piece |03 which isadiacent the reed is set away from the latter, and in rthis way wear of the tail piece on the reed is prevented. Due vto the one-way hinge joint between fitting |02 and the carrier body, bucking of the carrier body, i. e.,` flying up of its forward end, upon impulse imparted by the tail piece, is prevented while at the same time free flexing is permitted asthe carrier. traverses the curved end portions of its endless track.

Bucking tendency is minimized by the substantial spacingof pivot pin |00 above the bottom surface of the carrier body. v

I shall now describe the'means whereby the carrier is brought to rest at the entering side of the shed, is caused to'pick up a. yarn end, and

whereby the yarn is held and cut at the entering 'side of the shed.

Referring particularlyto Figures 1, 7, 18 and 19, reference character |04 designates a carriage in the form of a vertical plate having a horizontal dove-tail rib |05 on its rear face, this rib being engaged in a complementary guideway in a strip |03 set in the front face of the lay cross portion 3|. The strip |06 is disposed adjacent the left hand end of lsaid cross portion 3| and the carriage |33 may be slid relative thereto and locked 5@ in adjusted position by means of set screws as at |31. The carriage has at its lateral edges outstanding anges which provide bearings |08 and |09 in which shaft 14 is journaled. Between the bearings cams ||0, ||I and |I2 are mounted on shaft 14 and have a common key ||3 which is slidable in an elongated keyway ||4 in shaft 14, Figurel. The cams ||0 to ||2 have elongated bearing portions so as to ll .the space between Abearings |03, |03 whereby to maintain the cams 00 in fixed rotational planes. As indicated in Fig- 'ure 19, the key ||3 is h'eld in position by contact above race plate 33. Adjacent the sword 32 the race plate, it may be mentioned, is provided with a longitudinally extending recess in its forward v edge and slidable along this recess and complementing the narrowed portion of the race plate is a rib IIB on carriage |04.V Screwed on top'of rib IIB and extending across the adjacent.v por- "ion of the race plate is a thin (for example, 'f) plate ||8a which extends from the left hand end of the carriage to 'near the right hand end and 'l5 forms part of the carrier.track. -Plate IIBa is beveled vat its left hand end so that the carriage can readily ride up onto it. Its right hand .end is adjacent the warp threads so that jumping of the carrier on encountering the latter is prevented. In its arrested positionthe carrier is 5 on plate ||8a. Bell crank lever IIE is pivoted on a shaftI ||9 whose'ends Aare supported in the side flanges of carriage |04 above and somewhatto-therear of shaft 14-as most clearly seen in Figure 19. The tail portion of bell crank lever 10 IIB is held against the face of cam I'Ili by means of a tension spring |20. ing impulses'are imparted to the carrier at eachlv Adjacent the bellcrank lever IIB a cutter I2| is pivoted on shaft IIS, this' cutter including a blade |22 as most clearly shown in' Figure 10. 15 A tension spring |23 pulls the cutter blade toward the position shown in Figure 10 wherein the blade bears against the top of rib ||0 or against a hardened block set in the top of the latter. The cutter |2I has ata.il portion |24 20 for cooperation with cam III. When the cutter is cocked by the cam the free end of the blade vis disposed so as not to obstruct travel of the carrier 84. y To the right of the cutter a holder |25 is pivoted 25 on shaft ||3 and includes a tail portion |26 which cooperates with cam II2. `On`the opposite side of shaft ||3 from the tail portion |26, the holder has a pair of spaced apart fingers |21 'and |20,

in angular relation to the said tail portion, be- 30 tween which is pivoted a third linger |23 on a pin |30. The ngers. |21 and |23 have notches as at |3I, Figures 8 and 9, and the finger |29 has its free extremity out away to provide a vshoulder'l32. A tension spring |33 has its ends` 35 connected respectively to an ear |34 secured between the extremities o f fingers |21 and |28 and a nose |35 on finger |29 so as to hold the parts normally in the relation shown in Figure 8 wherein the extremity of finger |29l is out of the 40 v path of travel of the carrier. A tension spring- |36 tends to swing the holder |25 in a counterclockwise direction so that when the tail |26 is released byK cam I|2 the fingers will be snapped to the closed position shown in Figure 9vso that 45 a yarn end can bev securely gripped between the notches as at I3| and the .shoulder |32.

`Vertically reclprocable on the outside of carriage |04 is a bar |31 which is guided in a. lgroove at the lower end of the carriage andv retained 50 therein by means of a cover plate |38, Figures 1,

- 18 and 19. The bar has secured to its lower extremity a. laterally projecting foot |33. which is pierced to receive one end of a cable |40 whose extremity has an-,abutment |4| secured thereto, 55

' there being a compression spring |42 interposed between the abutment and the foot'. Cable |40 is led upwardly over a pulley |43 then laterally- I' to and downwardly from a pulley |44 at the upper end of sword 32,`Figure 1.

At its upper end bar |31 has secured thereto an elongated vertically extending block |45 whose forward face, as here shown, is grooved to provide seven grooves as at |40 of different lengths,

the grooves becoming shorter Vtoward the right, 65

Figures 1 and 18, and 'each rib having a lower extremity as at |41 bent over the adjacent rib to provide a guide from beneath which the yarn' may be laterally withdrawn at'the lower ends of the grooves; Mounted on top of block |40 are 7.0 seven wires as at |40 having end eyes as at |43, Figure '18. and at the lower ends of thesewies a guard |50 is secured across the top of block* 45 for the purpose `of defining yarn guides inconjunction .th the upper c er'n'lsl of the Igroovegii` Yarn is led from sevenpackages as at |5| through the eyes as at |49, twisted two or three times about the wires as at |48, to prevent tangling with each other, and then led behind the are secured superposedv blocks as at |53, Figures,

1, 18 and 21, which carry .thread'tensioning and guide means. The tensioning and guiding means comprise plates as particularly shown at |54,

Figure 7, vertically slidable on pins as at |55 and l5 pressed downwardly by springs as at |56. Adjacent the inner edge of each plate as at |54 is a vertical pin as at |51. Between the blocks as at |53 are spacer blocks as at |58 which have for-` ward faces-contoured as at |59, Figure 1. As 20 will be seen from the latter gure, the yarn |60, drawn from beneath the foot |41, is guided across surface |59, -beneath presser plate |54 and against pin |55, and then against pin |51. The yarn end is 'shown as projecting at substantially right angles above and across plate ||8t in Figures 7 and 21, in which position it is adapted to be gripped by the carrier jaw.

In the use of the described yarn feeding mechanism a selected one of seven different yarns from $0 the seven packages is adapted to be positioned for engagement by the carrier, the yarn presented depending upon the elevation of block |45. Yarn ends below the top of rib |8 are received ina vertical groove |04' in the front face of the carriage,

- Figures 7 and 21. 'rheposition of 'block Ame is controlled through cable |40 from the head motion of the loom, as here contemplated, although other suitable control means may beutilized. In looms of known type there are in the head motion 40 four vibrators and jacks that actuate the shuttle boxes. From two jaws there is one chain which operates the right hand shuttle boxes inte four diiIerent positions, while the other jaws operate the left hand boxes througha chain in the same manner. For the control of my yarn feeding mechanism I utilize these two chains designated at |6| and |62, Figure 23, bypivoting a bar |63 to their ends and connecting cable |40 to the middle of this bar by means of a clevls |64. The controlled tensioning of cable |40 elevates block |45 to bring va selected yarn feeding station into proper relation to the raceway while the controlled slackening of the cable permits the block `to drop by gravity V`to the selected position. By

the described arrangement I am enabled to weave a fancy pattern as readily as solid cloth.

In advance of the yarn feeding device I provide means for arresting the carrier and for insuring that jaw 98 is open. Further, means are 00 provided for closing the jaw when, as the carrier begins to travel, the jaw comes over the projecting yarn end.

0n its rear surface and above raceway 89, carnage ma is provided with a block les which has 05 two parallelvertical slots |66 and |61 extending longitudinally of the race plate, reference now being had particularly to Figures '1, 11 to 14 and 19. A shoulder'l screw |68, carried by block |65 extends through a bore crossing the slots and its threaded end is engaged ina threaded b ore in a brake member |69 which-is swingable alongside the outer-face of block |65. Brake member |69, which is most clearly shown in Figure 12,-has a downwardly and forwardly` inclined lower sur- 78 face |10 along-which extends a leaf spring |1| which is xed at the point |12 and free at its forward end. 'I'he plane of swingof the block member coincides with the path of travel of wall 86 of carrier 84. y

Pvoted on screw |68 in slot |61 is a member 10 |16 which has a forwardly extending elongated tongue I 11 in the vertical plane of travel of spacer block 91 of carrier 84.

As the carrier emerges from guide channel 61, the brake member |69 is in a position wherein its spring |1| will be engaged by the inclined surface 88 of the carrier wall 86 and the brake 2,5 member cannot swing upwardly out of the way in view of the fact that the upper end ||1 of lever ||6 o'verlies the forward portion of the brake member, the tail portion of lever ||6 riding on the high portion of cam ||5 as shown in Figure 19. Hence the carrier is stopped, the shock being minimized by spring '|1|. When the high portion of cam ||5 passes from beneath the tail portion of lever ||6, the lever is swung in a clockwise direction by means of spring |20 and the brake |69 will now release the carrier, swinging freely upwardly, when propelling force is imparted to the latter. When this occurs, by reason of roll 64 being lowered onto the tail piece |03,l the carrier moves forward, dog |13 insuring that the left 40 hand portion of lever 94 is depressed so that the jaw 98 is fully open. When the jaw has reached, or has nearly reached, the projecting yarn end |60, the inclined surface 88 of carrier wall 86 engages the extremity |82 of lever |8| thereby caus- 45 ing finger |83 to bear downwardly on the elongated finger |11. The flnger |11 is thus borne against spacer block 91 and quickly swings lever 94. in a clock-Wise direction to force jaw 98 in groove 99 and thus securely engage the yarn end. |50

At this time the holder |25 is in the position shown in Figure 8, while cutter |2| is in the open position so as not to obstruct the path of the carrier.

The carrier now traverses the shed with the 55 yarn and at-the departing end of the shed encounters mechanism for releasing the yarn, holding and tensioning 'the released yarn, and then cutting ofi' the yarn end adjacent the warp.

A carriage |84, Figures la, 15, 16 and 1'1, is ad- 50 justably mounted on cross portion 3| in the same manner as carriage |04, heretofore described,

and maybe locked in ladjusted position by means of set screws' as at |85. As here shown-the upper portion of the carriage hasa rearwardly pro- 05 jecting rib |86 which is received in a longer recess |81 in the top of crossportion 3|. Rib |86 has secured to the top thereof a strip |88 which is complementary to a narrow portion of race plate 88 where it is recessed for the length of recess 70 |81. f

Carriage |84 includes outwardlyA projecting webs which providebearing'portions |89 and |90 for shaft 14. Adjacent bearing 89 shaft 14 has fixed thereon, as by-means of a set screw, a cam |9| 'I5 which is similar to cam III' of Figure 10 and cooperates with a cutter |92, similar to cutter |2I, which is pivoted on a pin |93 proiectingirom the adjacent web. Adjacent bearing |90 a` sprocket 5 wheel |94 is xed on shaft 14 by `a set screw. An upper extension |95 of the bracket provides' bearings for a shaft |99 on which is xed a sprocket I91` connected by a chain |98 with j.` sprocket |94. Gn the left hand end of shaft |99 l0 is a rotary brush |99 of such diameter as to project a substantial distance across the carrier path'and which is adapted to sweep through an arcuate groove 200, which has shaft |99 as a center, extending transversely in the top edge of carriage |84. Fixed at the left hand side oi brush |99 in contact with the lower portion thereof is a ringer whose face adjacent the brush is substantially coplanar with the adjacent side wall of groove 200. On the opposite side of .the brush, 20 and also directly opposite finger 20|, is a block 202 slidable on ahorizontally extending stud 200 and pressed against the brush by a compression spring 204. A stud on the outer face of the carriage carries a pin wheel 205 whose plane of 4rotation is perpendicularl to the plane of rotation oi Abrush |99 and the pins of wheel 205 are arranged to have an outward combing action on the brush when the pin wheel is rotated in counter-clockwise direction. For the purpose of driving the pin wheel it S0 has iixed thereto 'a grooved pulley 20e driven by a belt 201 from a grcoved pulley 208 on sprocket |90, the portions of the belt between pulleysv 205 and 2084 being engaged by direction pulleys 209 and 2I0. 95 Supported by and behind the upward carriage extension |95 is a cam block 2| I which is adapted to engage the rear portion of lever 9d ofthe carrier, as the. carrier travels past, so as to swing the lever in counter-clockwise direction.

40 As the carrier passes brush |99 the yarn is en- Y gaged by the bristles o f the latter, which is rotating inthe direction oi the arrow, Figure 16, to be swept against the edges of groove 200 and between nger 20| and block 202 which are adjacent the i5 brush. Almost immediately .the cam block 2II engages the rear portion of lever 94 of carrier 84 and swings the lever ina counter-clockwise direction so that jaw 99 is movedout of groove 99 torelease the yarn. At this point the tail |20 of .50 holder |25 leaves the high part of cam I I2 so that the holder lingers snap to the position shown in Figure 9 engaging the yarn between the notches as at I2 andthe shoulder |32. Immediately cutter I2I severs the yarn between holder- |25 and 5 8 feeding device` |45. The severed portion `of the yarn at the feeding device now springsto a transverse disposition above rib III, as'particularly showninl'igmesland2hsosstobeinposition to be engaged by the carrier Jaw during thenext ,so oycle. I1' in the next cycle the feeding device should be elevated.- the ends which Iwere within" -groove |04 will spring' out into substantially horisontal position so that-the selected end will be' properly disposed. Brush Ill, acting on .the-sev.-

- os ered end of the yarn applies ayielding tension-to the pick. After the pick is beaten in. cutter|92 operates to sever .the yarn adjacent .the warp. Theseveredyarnend atthedepartingsideot the shed will-be swept downwardlybylbrush |99 and.

' 7.0 combed out of the brush by the-pinzwheel 20|. ,i It'wili be -evident vthat may be accommodatedby suitably "Land .Illsince all thefeeding, ,.holding, andA severing devices. anddevicesfor controlling the A'is carrier vJaw `are supported by these 1 supportashait 229. y I

fThe carriage includesv a verticalextension 22| immediately adjacent to the line of edge 29a ofthe Araceplatetluiexten'sii'inhaving a top horiliontal flange portion 222 extending over the raceplate I9 u Y Upon loosening the set screws as at |01 land |99, the carriages may be moved longitudinally of the lay. In case of carriagel |94. it lis additionally necessary to loosen cam I9l and sprocket |94 Aso that they 'may be slid on shaft 14 to their new 5 f positions.

The described mechanism affords many advantages over the conventional shuttlel loom. The yarn carrier is small and light and hence requires small propulsive force, and economy of operation 10 is enhanced-by reason of its endless path in which it is arrested but once. In view of the small size of the carrier, a smaller shed opening is required than in the case of a shuttle loom, thereby reducin g the tension on the warp yarns during shedding. 4lli Due to the definite tension applied on each'and- Y every filling yarn inserted, the product isJmore uniform 4than in the case of the shuttle loom. Also, the elimination of the operation of winding vbobbins for a shuttle saves time and expense and 20 leaves the lling yarn in a stronger condition, due to less handling.

In order'that the yarn packages may be arranged in a small group I preferably employ the means for drawing the yarn from the packages 20 shown in Figure 20 and fragmentarily in Figure 18. Referring particularly to Figure 20, reference numeral 2 I2 designates a disc supported on a tubue lar pedestal 2 I 2a from a base 2 I 2b, the latter having a perforation 2 I2c surrounded by the pedestal. 80 Disc 2I2 is received in the base of the conical cop 2 I 2d to support the cop. A metal tube 2 I3 has an expanded porcelain mouth 2 I3a\at one end and is provided with longitudinally extending parallel slots or slits as at 2I9 which extend from its other l95 end to adjacency with the mouth where a relatively large opening 2I4a, is provided. As shown in Figure 20 the tube 2I3 is frictionally supported in the opening at the small end of the cop and extends directly downwardly through an opening in o `disc 2I2. In threading, tube 2I8 being free of the cop, a hook Is inserted through opening 2Mo and out of the mouth and engaged with the yarn end of the package. The yarn end is then pulled out ofopening 2Mo and slid down to the open end of a slot 2 I4. The tube is inserted to the position shownin Figure 20 and the yarn end led to the 'feeding device as shown in Figure is. with the slotted tube other threading methods may be used although the one lust described is preferred. As

an alternative, for example, the yarn end maybe v slid upftothe ends of the slots and-'a loop pulled out through the mouth by means oi 'a hook. Thev Y. yarn may then be broken Ioutside the tube and the new emi dedito the loop so that it. can be pulled '55 through the tube. A

' in Figui-es 24 to 30.1 have shown alternative.-

and in -ina'ny respects preferable, mechanism tor arresting the yarnatthe departing endo! the shed and severing the protruding rillingends. To refer nl to these ngures, reference numeral2|9 designates' a'carriage 'mounted on cro portion 2l of the lay scribedjwith reference to carriag'elll.V Carriage 6 6 2|l Includes outstanding vertical webs 2I9 and 2|1 aperturedtopsss timing shaft Hand-between i y shaft has fixed thereon by means :of a set screw'lit'. acam 2|9. Above 'shaft 14, and thereto, webs 2|! and 2|1 19 at the'departing side of the shed andadiustable longitudinally of the lay in the manner above deand supporting cam 2||, heretofore described.

Mounted on the left hand margin of extension 22| by means of a bracket 223 is a flat spring finger 224 which extends horizontally and has at its free end a bent back portion 225, which projects just above the level of the race plate and across versely of the race plate and flxedly supporting a direction.

At its free end, finger 228 has an upwardly projecting flange 239 at its outer edge, this flange extending longitudinally of the finger and terminating at the free end of the finger in a nose 23| In the normal position of

fingers

224 and 228, portion 225 of the former overlies portion 230 of the latter so that the top of portion 230 is substantially flush with the top of the race plate, this relation being most clearly shown in Figures 26 and 2'1. 'I'he top of portion 238 is inclined toward the extremity of the nose 23| so that even though projecting somewhat above the level of the race plate the travel of the carrier will not be interfered with. Portion 225 of finger 224 is in the path of travel of the outer extremity of edge 92 of the carrier bottom. With this arrangement, the carrier leaving the shed strikes portion 225 of finger 224, forcing it outwardly and releasing iinger 228 so that the latter snaps upwardly behind the portion of the carrier which passes over recess 38D,

. intothe recess 85h of the carrier bottom, bringing flange 230 directly opposite portion 225 of finger 224. As the latter is released, as the carrier passes on, portion 225 springs toward flange 230 so that the yarn is gripped between the two. Immediately thereafter, the carrier gripper is released due to the action of cam 2| I, so that the yarn is held solely by the fingers. The grip of the ngers, while adequate to hold the inserted yarn, is not 245 which depend closely'adjacent the outer edge of the temple cover. 'Ihe lower portions of

flanges

244 and 245 are connected by rivets through a filler piece to provide a slideway for a slide 246 which includes a shearing head 241 projectingdownwardly and outwardly of lower extensions 244a and 24511. of

flanges

244 and 245 whose edges are faced toward the lay. lThe shearing head is normally held in spaced relation from the edges of

extensions

244a and 245a by a tension spring 248 which is connected between the rear end of slide 246 and flange 244 in the manner particularly shown in Figure 28. The action of the spring is limited by a stop 249 on the slide which engages the edge of flange 244. At its rear end slide 246 carries a pin 250 which projects away from the temple.

The extension 22| of carriage 2|5 has integral with its upper portion an L-shaped arm 25| whose extremity 252 oscillates with the lay in a path intersecting pin 250 of slide 246.

As the cloth travels up roll 240, the protruding weft ends are successively lifted into the space between

flange portion

244a and 245a on the one hand, and shearing head 241 on the other hand.

As the lay 'approaches the end of its beating-in movement the extremity 252 of arm 25| strikes pin 250 so that slide 246 is moved and shearing action of head 241 is effected to sever the protruding end or ends within its range of action. As extremity 252 of arm 25| now moves away from pin 258, the shearing head 241 is returned to open position by spring 248.

The yarn holding mechanisms at both ends of the shed are effective, preferably, to hold the yarn ends with little or no slippage until the pick is beaten in. In such case, additional tensioning of the pick is effected as the lay approaches the.

end of its beating-in stroke.

In Figures 31 to 33, I have shown listing mechanism which may be utilized in conjunction with the loom heretofore described. Referring to these of such extreme force but 'that the yarn will be drawn between the fingers by the carrier without breaking until the carrier gripper is released.

Pivoted on shaft 228 and positioned thereon by fixed collars,'is a lever 232 having a lower portion 233 associated as a follower with cam 2 9, and an upper portion' 234 whichhas an L-shaped extension 235 with an extremity 236 extending transversely of the race plate but out of the path of the carrier, Figure 29. Nose 23| is below and in the path of swing ofextremity 236. After the pick has been beaten in, the low part of cam 21.9 reaches fo'llower portion 233, permitting lever 232 to be snapped in a. counter-clockwise direction by a tension spring 231. Portion 236 of lever 232 thus strikes the nose 23| Vof i'lnger 228 and returns the finger to the position of Figures 26 and 27, so that portion 225 of nger 224 is 'permitted to spring again over flange portion 280 to retain finger 228 in its normal depressed position.

A temple 238 is secured on the breast beam in the usual manner and comprises a cover 239 and a. roll 248 having a spindle 24| supported at its inner end by a. temple bracket 242. Fixed on the outer forward edge of the cover 239 is a bracket 243, which supports mechanism for severing the protruding weft ends.

Bracket 243 has parallel vertical flanges 244 and figures, reference numeral 265 designates a spindle rotatable on a horizontal axis behind the loom harness in a bearing 266 carried by an arm 261 which is longitudinally adjustable in a block 268 supported by a frame member 269. Spindle 265 has fixed thereto a cross member 219 which carries two bobbins 21| and212. At the extremity of spindle 265 adjacent the free end of the bobbins, there is secured a circular disc 213 provided with diametrically spaced porcelain eyes 213a and 213b. Slidable on the surface of the disc 213 adjacent the bobbins is a pair of tension members generally designated by the

reference numerals

214 and 215 which are identical in construction so that description of one will sumce.

Tension member 214 comprises a rectangular bottom platel 216 provided with upstanding lugs 211 at its four corners and with an upstanding stud 218 at its center,vthe upper end of the stud being threaded.l At one side the plate 216 has an ear 219 which is bent around a guide wire or light bar 280 supported sufficiently away from the disc surface bylend posts4 to permit free sliding of plate 216 y,toward and away from eye 213a on a cord intersecting the latter.

A plate 28|, centrally apertured to receive stud 218, rests on top of plate 216, having cut-out corners receiving the lugs 211.V A compression spring interposed betweenplate 28| and an abutment nut on stud 218 yieldingly urges the former against plate 216. A tension spring 282 has its ends respectively connected to plate 28|.and to an an- "chorage on disc 213 and is arranged to pull tension member 214 away from eye 21311. Tension member 215 has the same provisions, as may be readily seen from Figure 32. Yarn from one of the bobbins is led between

plates

216 and 28| ci member 214 and through eye 2131:, the yarn being -securely/retained in the tension devices by the and 285 with a suitably supported shaft 286 on which is fixed a gear 291 suitably driven, as for example, from a gear 290 on the loom drive shaft.

'Ihe spindles are thus rotated constantly in the same direction at the rate of one-halfturn per pick.

In the use of the apparatus the spindles are set `apart in accordance with the width of the 'wall through suitable adjustment of the supporting arms as at 2 l1, this being permitted by the iiexible shaft portions, and the yarns from the two sets of bobbins are passed through the reed at each side immediately adjacent the outsideI Warped yarns. As each pick is beaten` in, the listing yarns are twisted on the pick in the manner shown in Figures 33 so that the weft ends are securely tied together. In Figure 33 the heddles are generally indicated at 29|, and the listing yarns from bobbins 21l and 212 at 292 and 293.

In Figure 32 disc 213 is assumed to be at the right-hand side of the warp looking toward the reed. '.Eye 213g consequently is nearly straight behind the reed slot lthrough which both of the

listing yarns

292 and 293 are passed.4 However, there will be a substantial angle between eye 213D and the said reed slot so that the length of yarn between eye 213i; and the reed will be greater than the length of yarn between eye 213a and the reed.

This situation is taken care of by the yielding ofl the spring associatedwith member 215. On the other hand, it will be'seen that member 214 has been drawn somewhat away from eye 213a by its spring 282 so that the slack, which would have lms otherwise developed in yarn 292 upon movement of eye 213e to the inside position shown, is taken 1. In a shuttleless loom, a lay, a weft carrier for carrying the weft yarn through the warp shed, a

horizontal race plate for said carrier on said lay` beneath the shed, means connecting the ends of said race plate and denning with said plate an endless path for 'saidlcarrien and means at each end of the shed for propelling said carrier in its endless path with the same end of the carrierl always leading,-the propelling-means at the de- Mina end of the shed being arranged to receive the carrier. and return it to-the entering end oi the shed at' a speed-greater thanv that. imparted tothecsrrier by the propelling means at said enter- 70 ing end.

y\carrying`the we it yarn through the warpl shed:-v said carrie'r comprising a body portion, means on said body'portion for gripping a yar'nvend, a d3. 7s nexible tall portion connected with saidbody re selected yarn end.

4 2. In a shuttleless loom, a lay, a weit carrier for l tion and'through which the carrier is propellable;

' a horizontal race plate for said carrier onsaid lay beneath the shed, means connecting the ends of said race plate anddeiining with said plate an endless path for said carrier and rotary means at each end of the shed which successively engage said Vtail portion to propel said carrier in its endless path with the same end of the carrier always leading.l

3. Structure according to claim 2 wherein each of said rotary means comprises a pair of'wheels between the peripheries of which said tail portion is engageable, and wherein means is provided for displacing one of said pair of wheels away from the other to permit free passage of said body portion between the wheels.

4. In a shuttleless loom. a lay, a weft carrier for carrying the weft yarn through the warp shed;

said carrier comprising a body portion, means on said body portion for gripping a yarn end, and a flexible tail portion connected with said body portion and through which the carrier is propellable; a horizontal race plate for said carrier on said lay beneath the shed, means connecting the ends of said race plate and dening. with said plate an endless path for said carrier, pairs of wheels at theends of the shed and in said guideway, said tail portion being engageable for propulsion between drive shaft for the driven wheels is journaled onv the lay, and wherein said drive shaft is rotated from a driven shaft externalof the lay through an extensible universally jointed connection.,

6. In a shuttleless loom, a lay, a weft carrier for carrying the weft yarn through the warp shed, said carrier including a yarn gripper, a horizontal race plate for said carrier on said lay beneath the plate and dening with said plate an endless path for said carrier means for propelling the carrier along its path, a multiple yarn feeding device vertically reciproeable adjacent said race plate and` adapted to position a selected yarn end above and in transversely extending relation to said plate, and meansforfcausing said gripper togrip the 7. In a shuttleless loom, a lay; a'weft carrier 'd for carrying the weft yarn through the warp.

shed, said carrierf including a yarn gripper, va

horizontal race plate for saidcarrier von said lay beneath the shed, means connecting the ends 'of said race plate and defining-with said plate an endless path for said carrier, means for propelling y the carrier alongits path, .a multiple yarn feedingv device vertically reciprocable adjacentsaid race including a presser member actuated by 'said car rier'during travel of the 'latter.'- e

8. In a shuttlelese'i loom, al 'a wett carrier-J shed, means connecting the ends of said race v for carrying the wert yarn through the warp shed. said carrier including a 'yarn gripper pivoted on ak horizontal axis extending transversely-o! thevcarf riei-,dl'a horizontal race platefor-said corrieron .7|

feeding mechanism adapted to position a yarn end above and in transversely extending relation to said plate at the entering end of the shed, a presser member mounted on said lay above said plate at the entering end of the shed, and means engaged by said carrier in its travel and moved to actuate said presser member to cause the latter to swing said gripper into gripping .relation with the yarn end. y

9. In a loom, means for carrying a weft yarn end through the warp shed and releasing the said end,means at the entering end of the shed for holding the inserted yarn, means at the departing end of the shed providing a wall extending transversely of the path of movement of said carrying means and beyond which the released end of the yarn projects, and a rotary brush cooperating with said wall to brush said released en d thereover and thereby tension the inserted yarn.

l0. In a shuttleless loom, a lay, a weft carrier for carrying the weft yarn through the warp shed, a horizontal race plate for said carrier on said lay beneath the shed, means connecting the ends of said race plate and defining with said plate an endless path for said carrier means for driving said carrier in said endless path, yarn feeding means at the entering end of the shed, said carrier having means effective to grip a yarn end at said feeding means whereby to carry the yarn through the shed, yarn arresting means at the departingl for carrying the Weit yarn through the Warp shed,

a horizontalrace plate for said carrier on said lay beneath the shed, means connecting the ends of said race plate and defining with said plate an .endless path for said carrier, means for driving said carrier in said endless path, yarn feeding means at the entering end of the shed, said carrier havingmeans effective to grip a yarn end at said feeding means whereby to carry the yarn through the shed, yarn arresting means at the departing end of the shed, said arresting means comprising an upwardly spring-biased ilnger disposed in a recess in the race plate, a second finger springbiased horizontally transversely of the base plate and normally overlying a portion of the iirst linger to hold the latter depressed so as not to interfere with the travel of the carrier, the second linger having a portion engageable by the carrier to move the second finger whereby to release the first nger so that the latter springs up behind a portion of the carrier which passes over said recess, the carrier in its continued travel releasing the second nger so that the same springs toward the first nger to cause the yarn to be gripped between the two fingers, means eiective to release the yarn-from the carrier, and means for returning the ilrst ilnger to render it reengageable in depressed position by the second iinger.

12. In a shuttleless loom, a lay, a weft carrier -for carrying the weft yarn through the warp shed, 4a horizontal race plate forsaid carrier on said lay beneath the shed,rneans connecting the ends of said race plate and dening with said plate-an endless path for said carrier, means for driving.

said carrier in said endless path, yarn feeding means at the entering end of the shed. said carrier having means eiective to grip a yarn end at said feeding means whereby to carry the yarn through the shed, yarn arresting means at the departing end of the shed, said arresting means comprising a spring Afinger biased transversely horizontally of said race plate thereabove, a horizontally pivoted nger normally held inoperative by said spring linger below'the latter and spring biased upwardly, said spring finger having a portion engageable by said carrier so that said spring nger is swung to release said pivotal linger whereupon the latter springs upwardly into such position that when said spring fingeris released during continued travel of the carrier the yarn will be gripped between the two fingers, means eiective to release the yarn from the carrier, and means for returning the pivoted finger to render it reengageable in depressed position by said spring nger. l l

13. A weft carrier for a shuttleless loom, said carrier comprising a body portion, means on said body portion for gripping a yarn end, and a iiexible tail portion through which the carrier is propellable pivoted to said body portion on an axis extending transversely of the latter.

14. vA carrier according to claim 13 wherein the tail portion is pivoted to the body portion on an axis spaced substantially aboveY the bottom of the body portion.

15. A carrier according to claim 13 wherein the tail portion is pivoted to the body portion through a one-way hinge joint so arranged as to oppose lifting of the front end of the body portion when a driving impulse is imparted to the latter through the tail portion..

16. In a shuttleless loom, a weft carrier coniprising a. body portion having a bottom -wall adapted to pass under a traversely extending yarn end to be. gripped, an upwardly faced longitudinally extending groove in the leading portion of said bottom` wall, a lever `pivoted on said body portion on a traverse axis and having at one end a tongue adapted lto enter said groove to grip the yarn e'nd, means for depressing said one end of said lever to engage said tongue in said groove, and means for depressing a portion of said lever on the opposite side of the pivoting axis from said one end to disengage said tongue from said groove whereby to release the yarn end.

17. In a shuttleless loom comprising a lay, a weft carrier for carrying the weft yarn through the warp shed,` a horizontal race plate for said carrier on said lay beneath the shed, and means for propelling the carrier along said plate, the combination of a multiple yarn feeding device comprising a. slide vertically reciprocable adjacent said plate at the entering end of the shed, said Vslide carrying superposed yarn feeding stations whereby as the slide is displaced a predetermined station will present a selected yarn end above and .transversely of said plate so as to be engageable by said carrier, and means adjacent said slide provided with a vertical groove for the reception of the yarn ends which are below the selected yarn end.

18. In a shuttleless loom comprising a lay, a weft carrier for carrying the weft yarn through the warp shed, a horizontal race plate for said carrier on said lay beneath the shed, means for propelling the carrier along said plate, the combination of a multiple yarn feeding device comprising a slide vertically reciprocable adjacent said plate at the entering end of the shed, supershed, a Vhorizontal race plate for said carrier on said lay'beneath the shed, means connecting the ends of said race plate land defining with said plate an endless path for said carrier, means for propelling said carrier through said path, yarn feeding means at the entering end of the shed adapted to position a yarn end above and transversely of said plate in position to be gripped by said carrier, means for releasing the gripped yarn at the departing end of the shed, means disposed at both ends of the shed for holding protruding portions of the inserted yarn, the holding means at the -departing end of. the shed being constituted by a rotarybrush which acts to tension the inserted yarn, and means adjacent said holding means for cutting said protruding portions.

20. In a shuttleless loom, a lay, a weft carrier for carrying the weft yarn through the warp shed, a horizontal race plate for said carrier on said lay beneath the shed, means connecting the ends of said race plate and defining with said plate an endless path for said carrier, means for propelling said carrier through said path, yarn feeding means at the entering end of the shed adapted to position a yarn end above and transversely of said plate in position to be gripped by said carrier, means for releasing the gripped yarnf at the departing end of the shed, means disposed at both ends of the shed for holding protruding portions of the inserted yarn, means adjacent said holding means for cutting said protruding portions, a horizontal shaft journaled on the lay, the holding and cutting means at each end of the shed constituting units, and means controlled from said shaft for operating said units, at least one of said units being adjustable longitudinally of said shaft in accordance with the width of the warp.

21. In a shuttleless loom, a lay, a weft carrier for carrying the weft yarn through the warp shed, a horizontal race plate for said carrier on said lay beneath the shed, means connecting the ends of said race plate and defining with said plate an endless path for said carrier. means for propelling said carrier through said path, yarn feeding means at the entering end of the shed adapted to position a yarn end above and transversely of said plate in position to be gripped by said carrier, means for releasing the lgripped yarn at the departing end of the shed, means disposed at both ends of the shed for holding protruding portions of the inserted yarn, means advjacent said holding means for cutting said protruding portions, the cutting means at one end of the shed being mounted externally of the lay -and including a horizontally movable shearing member, and a temple mounted adjacent said shearing member, the relation being such that the temple raises the weft ends into the path 'of movement of said shearing member.

22` In a shuttleless loom, a lay, a weft carrier for carrying the weft yarn through the warp shed, a horizontal race plate for said carrier on said lay beneath the shed, means connecting the ends of said race plate and defining with said plate an endless path for said carrier, means for propelling said carrier through said path, yarn feeding means at the entering end of the shed adapted to position a yarn end above and transversely of said plate in position to-be gripped by said carrier, means for releasing the gripped yarn at the departing end of the shed, means disposed at 'both ends of the shed ,for holding protruding portions of the inserted yarn, means adjacent said holding means for cutting said protruding portions, .the cutting means at one end of the shed being mounted externally of the lay and including a horizontally movable shearing member, a temple mounted adjacent said shearing member, the relation being such that the temple raises the weft ends into the path of movement of said shearing member, and means on the lay for operatively moving `said shearing member as the lay approaches the end of its beating-in movement.

23. In a shuttleless loom, a weft carrier, a race plate for said carrier on which the shed yarns are laid, a carriage adjustable longitudinally of said race plate at the entering end of the shed, and a plate mounted on said carriage and closely overlying the top of the race plate, said plate being of such thickness asto guide the carrier smoothly onto the shed yarns.

manon NADEAU.

Patent No. 2,226,069.

CERTIFICATE or com-marion',

j f' December 2A, 19ho. ELPHGE mmc.'

It is herebyl certified that-error appearsfiri the printed specification v'of the albove numbered patent requirlengv correctional1;.` follows: Page 1 first column, lines 2 and 8, for "-ahutterles" `read -f-fhttleless-m; and that tpesaid Letters 'Petenp should befre'adwth this correction therein that the s'amemay .c onfcrn; tithe record cf' the case in, Athe Pater-1t Office. .-signed 'and sealed this 16th day er Deeember,"-.A. D. 19in..

r Henry Van Arsdale, (Seal) Acting Commissionerof Patents.