US1753457A - Loom - Google Patents

Description

April 8, 1930. y J. THEXTON, JR., ET AL 1,753,457

a 7/ 4% M a 0 9 a L 4 l g n I lf-J-,zg iw'l :i l a I af F1 EL 65 E l y E.

Patented Apr. 8, 1930 UNirEo srATEs PATENT OFFICE f JosEPH THEXTON, JR., AND HENRY ToMLINsoE, 0E :FALL RIVER, MASSACHUSETTS,

AAssIGfNoRS 0E ONE-*FOURTH To JOSEPH E. EREELING, AND ONE-FOURTH 'ro FRANK 1 t RILEY, BOTH 0E FALL RIVER, MASSACHUSETTS Y LOOM Application. medrebruary 1, 192s. seriarNo. 251,152.

This invention relates to looms and particularly, to mechanism to be applied to a plain loomifor controlling the pattern as it is woven into the cloth. Itis particularly, though not exclusively, adapted for use in weavinghandkerchief cloth, and is an alternative construction to that shown in a copending application. l

One object of the present invention is to provide pattern controlling mechanism -for application to a plain loom so that patternV cloth can be woven thereon or the loom used for weaving plain cloth. Other objects of the invention will be more "u fully understood from the following description when taken vin'connection with, the accompanying drawings and the novel features thereofwill be pointed' out and clearly ldefined in the claims at the close ofthis specification. v

Inthe drawings,

Fig. 1 is a side elevation of alloom having attachedthereto pattern controlling mecha' nism embodying the invention, the parts being shown in operative position.

Fig. 2 is a vertical section taken on 2 2 of Fig. 1. v

Fig. 3 iS an enlargedvertical sectiontaken on the line 3-3 of Fig. 2. n

Figs. 4 and 5 are detail views in perspective of the arm and lever respectivelyof the clutch engaging mechanism. Figs. 6, 7 and 8 are fragmentary views similar to Fig. 2 and illustrating successive the line positions of the clutch engaging mechanism.l

Fig. 9 is a diagramY of handkerchief cloth produced by a loom having attached thereto mechanism embodying the invention.

As herein shown the pattern controlling mechanism embodying the invention is applied to a plain loom of thetwo harness type. Referring to Fig. 1 of the drawings,-at F is shown one of the side frames vof'such a loom which is provided with bearings for the crank i' Shaft 20, the cam shaft 21, the shaft 22 of the spool W from which kthe warp threads ware drawn in the process of weaving, and the shaft 23 of the cloth drum R upon which the linished cloth C is wound after passing over the breast beamr B. The crank Shaft '20 Yhas fixed thereto a pulley 24 bywhchit is driven it is driven from any suitable source of power (not shown). Itis provided with cranks 25 which impart an oscillating motion to the lay beam Z carried bythe layswords 26 to which the cranks are connected by intermediate links 27. v The lay swords are pivoted at 301 to the frame of the loom. The cam shaft 21 is driven by the crank shaft to which it is rotatably connected by gears 8.

vThe takeupmotion'of the loom, shown at T, is ofthe intermittent'type and comprises a train of gears g and a lratchet 28 which re-l ceives motion from a pawl 29 carried by an arm 30 pivoted at 31 to theframe and actuated byone of the lay swords 26. The ratchet 28l is locked against retrograde Inovement after each action of the pawl 29 `by one arm 32`of avlever 33 pivoted at 31 to the frame,

Vsaid arm acting as a lockingA pawl. This motreadle, front andback harnesses, a coiled spring and a harness roller. The shedding vcams indicated at c and c vare mounted fast yon the Acam shaft 21. v treadle t which is pivoted at 34 to the frame. 'The frontand'back harnesses are indicated rlfhe cam c operates the ath and z/ respectively and are connected at theirpupper lends to the harness roller n. At its lower end the front harness 7L is connected to the treadle 75.V rihe treadlev ordinarily supplied forthe rear harness 71. hasbeen removed and the rearharness is connected to the ioor by a coiled spring 35. 151s the front'harness it is depressed by the extendedv portion of its cam 0, therear harness 7a is raised, thusstoring up energy in the spring 35. l/Vhenlthe front harness 7L is permitted to rise the zrear harness z/,is `depressed under the action of the spring 35. cated atV S is formed which permits the passage .therethrough of the shuttle s to -lay the weft vthreads or filling. The shuttle Y19 actuated by the .picking motion (not shown), travelson the lav beam Z which is actuated bythe crank kshaft l`as heretofore described@ f Atv-"is shown Vthe reed which beats upthel In this manner the shedindiloo last pick of the filling after it has been laid in the shed by the shuttle, the constant repetition of which results in the formation of the cloth.

Vith the exception of the omission of one treadle and the addition of the' spring 35 which connects the rear harness h to the floor, the foregoing mechanism may be of any well known construction as it forms no part of the present invention except in its combination therewith to bring about the desired results.

Referring now to Fig. 9 of the drawings, there is shown in diagram a fragmentary view of handkerchief cloth as it comes ofi' the loom wherein a designates the body portion which is of plain weave, b designates one of the borders made by the weft threads or filling and which in this instance comprises ka group of eight cords shown atl 36 and seven single threads or picks shown at 37. Each cord of this border is made up of three threads or picks and each pair of cords has one of the single threads or picks therebetween. At cl is shown one of the hems which is of plain weave and at e one of the so-called severing cords which in this instance is made'up of three threads or picks. As is well known to those skilled in the art, handkerchief cloth is made up in' a large bolt comprising a large number of handkerchiefs and the severing cords are woven into the cloth at predetermined intervals to dene the indi-V vidual handkerchiefs, it being only necessary for the handkerchief maker to out along these lines to divide the cloth into individual handkerchiefs which may afterwards be finished up inany well-known manner. At f is shown one of the borders made up by the warp threads which is similar in construction to the border previously described.

It is with the weaving of the borders b and the severing cords e made of the weft threads or filling that the invention is concerned and it is one of the objects of the present invention to provide pattern controlling mechanism adapted for application to a plain loom of the two harness type and capable of producing the pattern above referred to.

In accordance with the present invention and with particular reference to Figs. l and 2 of the drawings, at 40 is indicated a shaft journaled in bearings 41 secured t0 a cross member 2 connecting the side frames F of the loom. A portion of this shaft extends out wardly beyond one of the side frames and has loosely mounted thereon a sprocket 43 which engages a chain 44 herein termed the pattern chain. This chain is provided with a series of cams for a purpose to be hereinafter described and extends upwardly in a plane parallel to the loom frame and at its upper end runs over a sprocket 45 loosely mounted on a stud 46 which is adj ustably secured to a bracket 47 located between said chain and the side frame of the loom.

The bracket 47 is provided with an elongated slot 48 for the reception of the threaded end portion 49 of the stud 46, said stud being fixed in adjusted position by a nut 50. The bracket is itself adjustably secured to the side frame of the loom by a stud 51 the reduced threaded portion 52 of which is received in an elongated slot 53 in the side frames F to which the inner endof the stud is clamped by a nut 54. The stud 5l is provided at its outer end with a reduced threaded portion 55 which is received in the slot of the bracket to which it is clamped by a nut 56. The bracket terminates at its lower end in a fork indicated at 57 which engages the shaft 40 and is held. immovably in place thereon between collars 58 secured to said shaft.

lt will thus be seenthat adjustment is provided between the side frame F of the loom and the bracket 47 for the pattern chain, and furthermore between the bracket 47 and the stud 46 which carries the upper sprocket 45. In this manner various lengths of pattern chains for a wide variety of patterns may be employed. Y

The pattern chain 44 comprises a series of links for engagement with the sprockets 43 and 45 and is provided on its periphery with knobs or cams arranged in groups and adapted at certain intervals during the operation of the loom, to actuate mechanism to engage the treadle t and restrain the harnesses. As shown in Fig. l this mechanism includes an arm 60 having its upper end loosely mounted on a stud 6l adjustably secured to an extension 62 on the bracket 47. The lower end of the arm 60 has attached thereto a wire 63 that is connected to a belt 64 that passes around pulleys 65 and is connected to a wire 66 that is attached to the lower end of a latch 3 pivoted intermediate its ends at 4 to a post 68. The post 68 is adjustably secured by bolts 67 to a slotted standard 69 fixed to the fioor directly under the forwardend of the treadle t. The upper end'of the latch 3 is provided with a hook 5 adapted to engage a pin 6 on the forward end of the treadle when the treadle engaging mechanism is actuated. The hooked end of the latch 3 is released to free the treadle, when the treadle engaging mechanism is inoperative, by a coiled spring 7 attached at one end to the post and at the other end to the wire 66 as shown in Fig.' l. The arm 60 is provided, intermediate its pivot point 6I and its connection with the flexible member which connects it to the latch 3', with a roller 9 which lies in the path of movement of the cams .on the pattern chain and normally rests against the plain links thereof due to the force exerted bythe spring 7 .in retract-ing the connections 63, 64 and 66.

The cams on'the pattern chain are as here` tofore stated arranged in groups and as shown for the particular'pattern illustrated in iFig. 9 `comprise a group of eight cams indicated at 70, a single cam 7l and another group of eight cams indicatedr at 72. Between each pair o f cams Vin the' eight-cam group isasingle plain link. Between the groups 70 and the single cam 71 are two plain links indicated at'73 and between the single cam 7l and the next group 72 are two plain links indicated at 74 and between cach group of cams to complete the chain are 41 plain links indicated Vat 7 5. v

The group of eight cams indicated at 70 actuates the treadle engaging mechanism above described to restrain the harnesses while the eight cords 36 of the border l) shown in F ig. 9 are being laid. The seven plain links in this grouppermit the treadle engaging mechanism to release the harnesses under the action of the spring 7 at which time the seven single picks in the border l) are being laid. As shown in Fig. l the first cam of thegroup 70 is engaging the roller 9 of the arm 60. This action has swung the arm on its pivot vto the left as viewed in this figure, causing the arm to exert a pull on the lower end of the latch 3 through the intermediate connections 68, G4 and SSand force the hooked end 5 of said latch into engagement with the pin 6 on the forward end of the treadle. At this time the harnesses are held in a fixed position thus keeping the shed S in the Vposition shown in Fig. l while the three picks constituting the first cord of the border Z9 are being laid. The single cam 71 actuatesthe treadle engaging mechanism in like -manner to restrain the harnesses while the severing cord c of three picks is being laid. Thenextgroup of eight cams indicated at 72 actuatesthe treadle en'- gaging mechanism to restrain the harnesses while the next border (not shown) which is e similar to border b is beinglaid.

The pattern chain 44 may be moved to actuate the treadle engaging mechanism by any suitable means, one type of which as herein shown will now be described. Secured to the cam shaft 21 for rotation Ltherewith is an eccentric 76 which actuates a pawl 7 7 having a hook-shaped end 7c and adjustably secured by a set screw 78 to a projection 7 9 on the eccentric strap 80. The pawl 77 overlies a ratchet 8l secured by a set screw 82 to the 'shaft 40 and is adapted during the operation of the loom to engage the teeth of the ratchetand impart av partial rotation to the shaft 40 i upon which is mounted the sprocket43 ythat i engages the pattern chain. p seen that the shaft 40 is given astep by step Sha-af It will fthus. be

rotation by the pawl.

Means are provided to vprevent the 40 from overrunning under the pull exerted by the pawl 77, and as shownin Fig.y 2 said meansl comprises a wheel 83 fixed toV said shaft and a flat spring 84 secured to the loom frame. The wheel is provided with flat surfacesv m on its periphery.corresponding in number to the number of teeth in the ratchet 7p vgiven apartial rotation by each movement of the pawl, and this intermittent movement of the shaft continues throughout the entire operation of the loom.- v

rlhe pattern chain44 is driven in 'a step by step movement by the shaft 40 to actuate the treadle engaging mechanism to restrain the harnesses while the pattern, in this instance, consisting of the borders and sever-V ing cords of the handkerchief cloth, is being laid. Means for connectin g the pattern chain to the shaft 40 for rotation therewith will now be described. integrally cast'w-ith the sprocket: gear 43 on the outer face thereof is a hub 85 which is provided with teeth indicated at 86, said gear constituting one member of a clutch. rlhe inner face of the gear bears against the outer collar 58 on the shaft 40. The teeth 8G of the clutch member are adapted to beengaged, at predetermined intervals, to advance the pattern chain, with teeth indicated at 87 formed on the hub of a disk 88, said disk constituting the other member of the clutch. rlheclutch member 88 is slidably mounted on the shaft 40 and is ro tativelyy connected therewith by aspline 89 on said shaft which engages a slot in the clutch member 88. A. coiled spring 90 (see Figs. 6, 7 and 8) surrounding the shaft` 40 and interposed between the clutch members tends tokeep the clutch disengaged. rlhe clutch member 88 is provided on its periphery with an annular groove 91 for a purpose to be hereinafter described. v

. vMeans are provided to engage the member of the clutch to permit the shaft 40 to advance the pattern-'chain in a step by step motion throughout its range of forty-one plain links indicated at 7 5 and into a position as shown in Figs. l and?, for the first cam to actuate the treadle engagingmechanism to restrain the harnesses while the first cord of the border Z9 of the handkerchief cloth is being laid. The movement of the forty-one plain links of the pattern chain past the roller 9 of the treadle engaging mechanism permits the normal actionof the harnesses in weaving the plain cloth constituting the body of the handkerchief. This means will nowfbe described: Y

Y VSecured to the outer end of the shaft 40 by aset screw 92 is a sprocket 93 which engages and drives a chain 98 herein termed the multiplie'r chain.7 This chain extends upwardly in a plane parallel to the pattern chain and at its upper end runs over a sprocket 94 loosely nounted on a stud 95 which is adjustably secured by a nut 96 to the bracket 47 previously referred Vto. The vmultiplier chain for the particular pattern shown in Fig. 9 comprises a series of twenty-six links, twenty-live of Which are plain and one of Which is provided With a cam 97. This cam is adapted at each complete revolution of the multiplier chain l to engage as shown in Fig. 7 a roller 150 on an arm Epivoted at 100 to a bracket 101 secured to the side frame F. The arm E (see Figs. 2 and 4) is bifurcated at its free end to form fingers O, which streddle the shaft 40 and engage the clutch disk 88 on the outer face thereof. It will thus be seen that the arm E is turned down on its pivot by the engagement of the cam 97 with the roller 150 on said arm, once for each complete revolution of the multiplier chain 98. As the arm E is depressed it moves the clutch member 88 into engagement with the clutch member 43 and permits the shaft 40 to drive the pattern chain 44 until the arm is released and the clutch is disengaged by the action of the spring 90. In this manner the pattern chain is intermittently advanced one link at a time until the plain Weave of the body portion of the handkerchief is completed and until the first cord of the border is being laid. In like manner the pattern chain is advanced the tivo plain links indicated at 7 3 to permit the Weaving of plain cloth in the hem d and into a position to actuate the harness engaging mechanism to restrain the harnesses While the severing cord e is being laid. The pattern chain is also similarly advanced the tivo plain links indicated at 74 to permit the Weaving of pla-in cloth in the succeedinghem and into a position to actuate the harness engaging mechanism while the first cord of the next border is being laid.

Means for engaging the clutch to permit the shaft 40 to advance the pattern chain for the completion of the border b Will now be described. Pivoted at 102 to the bracket 101 is a lever P (see Figs. 2 and 5 to 8, inclusive), which is substantially in the form of a bell crank. One arm 103 of the lever P extends upwardly from the pivot point and terminates in a fork, the arms 104 of which are adapted to engage the clutch member 88 in the groove 91 thereof. The other arm 109 of the lever P extends inwardly and is provided With a roller 10 which lies in the path of movement of the cams on the pattern chain 44. At its extreme inner end the arm 109 is provided With a tail portion 11 which is angularly disposed relative to said arm and is inclined upwardly toward its free end (see Fig. 5). The

tail portion 11 lies in the path of movement of a roller 110 (see particularly Fig. 3) secured to the free end of an arm 111 Which is itself secured to the arm of the treadle engaging mechanism. Y

With the foregoing construction it will be seen that the cam 97 in the multiplier' chain 98 actuates the arm E to engage the clutch to advance the pattern chain While plain cloth constituting the body portion of the handkerchief is being Woven. The pattern chain is advanced thereby until the first cam of the group 7 0 is in engagement with the roller 9 on the cam 60 of the treadle engaging mechanism as shown in Figs. 1 and 8. As the arm 60 is moved by tais cam it moves the roller 110 Which is attached thereto into engagement with the tail portion 11 of the lever P thus depressingl the arm 109 of said lever and holding the clutch engaged for the completion of the first cord of the border. After the completion of this cord, the first cam of the group engages the roller 10 of the lever P, thus holding the arm 109 thereof in its depressed position (see Fig. 8) and keeping the clutch still engaged until the next cam of the group 70 actuates the treadle engaging mechanism to restrain harnesses While the next cord is being laid. At this time the roller 110 again engages the tail portion 11 of the lever l), thus holding the clutch engaged until the completion of this cord. In like manner the pattern chain is moved to actuate the treadle engaging mechanism to restrain the harnesses While the remainder of the border Z) is being completed. The pattern chain is then advanced as heretofore explained by the action of the multiplier chain While the hem is being Woven and until the cam 71 engages the roller 9 and actuates the treadle engaging mechanism While the severing cord is being laid. The clutch is held in engagement until the completion of this cord by the action of the roller 110 on the lever l? as heretofore described. The pattern chain is then further advanced by the action of the multiplier chain until the succeeding hem is Woven and until the cord of the succeeding border is being la and the clutch is held in engagement to permit the completion of this border. by the action of the cams 72 and the roller 110 on the lever P, as previously described. ln this manner a complete cycle of operations of the pattern controlling mechanism is edected. I

As previously stated, the take-up motion, generally indicated at T in Fig. 1, dra-Ws down the cloth after it is Woven and Winds it upon the drum R. This action must take place after the reed 'r' beats up each pick of the filling in the plain Weave Which constitntes the body and hems of the handkerchief, but must be stopped temporarily While the cords of the borders and the severing cords are being laid to make the picks thereof more compact inthe finished cloth. .Means are'provided for checking the take-up motion during this operation, and as'shown in Fig. l, said means comprises a flexible connection indicated at 105, which is secured at one end tothe arm 106 to the locking pawl lever 33 and extends downwardly over the shaft 22 of the spool w, thence over a pulley 107 and forwardly to its connection at 108 with the lower endoftlie arm 60 previously referred to for actuating the treadle engaging mechanism. It' will thus be seen that when the treadle engaging mechanism is actuatedto'restrain the liarnesses while the cords: of the borders and the severing cords are beingY laid, the take-up motion will be checked, thu's'permitting the completed cord to be laidbefore the cloth is again taken up. .When the plain weave of the body and hems of the handkerchief is made,

the take-upmotion will be vpermitted to opery ate as is ordinarily of the lling is laid. v l

When the loom is to be used plain cloth it is simply necessaryto remove the pawl 77 when the treadle engagingm-echanism is in an inoperative position, after which the pattern controllingV mechanism will remainidle'during theoperation of the the caser after-each pick Y loom. This requires ybut a few minutes time and .practically permits the continuousoperation of the loom in weaving either plain or fancy goods. v f Y Y F romV the foregoing description it will be seen that a plain loom equipped with pattern controlling mechanism embodying the invention isadapted to weave either plain or pat" tern cloth.' Furthermore such mechanism is comparatively simple and inexpensive and requires little attention after it is set up and running. It requires considerably less power to operate than mechanisms now in common use for performing similar operations, and permitsof a higher speed with a consequent greater output per machine.

The foregoing advantages therefore result particularly in a lower 4first cost, less power consumed, lower labor. costs and increased production.

We claim: y'

1. A loom adapted to weave plain cloth having an attachment whereby it is adapted 'to weave a border comprising cords'consisting of a plurality of picks alternating with plain weave, said attachment comprising means for restraining the harness at predetermined times while a plurality lof Vpicks are being laid to form one of the cords, a pattern controlling member consisting of a cam car- .rier, a'plurality of cams carried by said carriervto actuate the restraining mechanism according to the pattern to be formed, a driving shaft, clutch mechanism on said shaft' adapted to make and break driving connection with said cam carrier, means for actuating theV clutch engaging mechanism to for. weaving Cause the cam carrier to be moved andy to bringv one of its cams intooperative position to restrain the harnesses while the cord is being laid, means for -holding the clutch en gage'd to advance the pattern controlling cam carrier during the restraint on the harnesses, means for holdingthe clutch engaged to advance the said cam carrier into position foranother cam to actuate the harness restraining mechanism for the laying of anf other cord, a second Vcain carrier, means for driving said second cam carrier andmeans whereby said second cam carrier controls the duration of the continuous plain weave while the pattern controlling [cam carrier is inoperative and means whereby said secondcam vcarrier controls the shifting vfrom* plain' weave to the pattern weave and rendersrop erative the pattern controlling 'mechanism after a predetermined continuous plain weave.- Y

2. A loom adapted to weave plain cloth and an attachment therefor adapted tok weave a l ated by said camsto restrain the harnesses at y predetermined intervals and during a prev determined number of picks, a rotary shafty for driving said cam carrier, clutchmechanism adapted vto make driving connection between'said shaft"I and said cam carrier,said means comprising two clutch "members, means Ifor normally holding said clutch members; disengaged from each other, a second cam carrier, a cam carried thereby,

means foractuating said-secondcain carrier,

and meansactuated by the cam on said secondA carrier to engage the clutch and thereby per# 'mit the iirstcain carrier to be actuated by Isaid rotary shaft.

3. A loom adapted toweave 'cloth and an attachment therefor adapted to weave a pat# kterned border consisting of cords and plain weave, said attachment comprising a cam carrier, a series of'cains mounted on said carrier at predetermined lintervals according tothe pattern to be woven, means actuated by said cams to restrain the harnesses at predetermined intervalsand during a predetermined A number of picks, a rotary shaft for actuating said 'cani carrier, clutch mechanism adapted to makeVV driving connection between said shaft and said camcarrier, said means comprising two clutch members,one of which is movable with relation Vto the other, means for normally holding said clutch members disengaged' from each other, a second caniy carrier, a cani carried thereby,v means for actuating saidv second cam carrier, means ibo izo

actuatedbyv the cam on'said secondcarrier to engage the clutch and thereby permit the first cam carrier to be actuated by said rotary ioV having an attachment whereby it is adapted to Weave a border comprising cords consisting of a plurality of picks alternating with plain weave, said attachment comprising means for restraining the harnesses at predetermined times while a plurality of picks are being laid to form one of the cords,

Aa pattern controlling .member consisting of `a vcam carrier, a plurality of cams mounted-on said carrier to actuate the restraining mechanism according to the pattern to be formed, a driving shaft, clutch mechanism on said shaft adapted to make and break driving connection with said cam carrier, means for engaging the clutch and thereby rendering the cam carrier operative to bring one ot its cams into operative position to restrain the harnesses while the cord is being laid, means for holdingthe clutch engaged to advance the pat-tern'controlling cam carrier during the restraint on the harnesses, and means for holding the ,clutch engaged to advance the said cam carrier into position for another one of' said cams carried thereby to actuate the harness restraining mechanism for the laying of another cord..

5. A loom adapted to weave plain cloth and an attachment whereby it is adapted to Weave a border consisting of cords alternating with plain weave, saidattachment having means for restraining the harnesses while a plura-lityot1 picks are being-laid to form a cord, an movable pattern controlling member adapted at intervals to actuate theharness restraining mechanism, driving mechanism for the pattern controlling member, a clutch whereby the driving mechanism may be voperatively connected with the movable pattern controlling member, means for engaging the said cllutchand thereby causing the pattern controlling member to be actuated to bring the pattern controlling member into position to restrain the harnesses, means controlled bythe harness restraining mechanism to hold the clutch engaged to permit advance of the pattern controlling mechanism during said restraint, 'and other means carried by the harness restraining member to hold the clutch engaged while the pattern controlling member advances toa position to again restrain the harnesses.

`6. A loom` adapted to weave plain cloth and an attachment whereby it is adapted to weave a border consisting of cords Valternating with plain weave, said attachment having means for restraining the harnesses while a plurality of lpicks are being laid to formv a cord, a movable pattern controlling member adapted at intervals to actuate the harness restraining mechanism, driving mechanism for the pattern controlling member, a clutch whereby the driving mechanism may be operatively connected with the movable pattern controlling member, means for engaging the said clutch and thereby causing the pattern controlling member to be actuatedy to'bring the pattern controlling member into position toV restrain the harnesses,cmeans controlled by the harness restraining mechanism to hold the clutch engaged to permit advance of the pattern controlling mechanism during :said restraint, other means carried by the harness restrainingmember to hold ythe clutch engaged while the pattern controlling member advances to Va position to again restrain the harness, and means whereby said clutch is engaged to render the movable pattern con rolling member operative only after predetermined periods ot continuous plainweave.

7. ln combination with a loom adapted to weave plain cloth, an attachment having means whereby it is also adapted to weave a border portion consisting of plain weaveV interspersed with cords composed of a plurality of picks,means for actuating the border forming mechanism, said border forming mechanism being normally held in suspense, means forirendering the said border orming mechanism operative after a predetermined operation of the plain weave, means for rendering the border forming mechanism inoperative after a predetermined period vof operation, driving mechanism, clutch Vmechanism for connecting the driving mechanism with the border forming .mechanism and a cam carrier adapted to make the clutch connection at predetermined intervals in the operation of the loom.

In testimony ,whereof weV affix our signatures. Y

JOSEPH THEXTON, Jn HENRY TOMLINSON.

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