US1667306A - brooks - Google Patents

Description

April 24, 1928.

. 1,667,306 J. c. BROOKS LOOM Filed Sept. 9. 1925 2 Sheets-Sheet l 00 m John lnvenTor.

C. Brooks b WMMLWM-Z All'ys.

J. C. BROOKS LOOM 2' Sheets-Sheet 2 Filed Sept. 9 1925 w. "wM. 8 r/ S m W M "T w \l w e a 4 a 3 3 s S 2 I. 9.- w o. l

8 N NJ 4 m. I A 8 m. A 2 m. we x W 6 4 ll 2 7 6 6 1 I I I O 6 v S S 9 4 00 w 4 lnvenTo'r. John C. Brooks An'ys Patented Apr. 24*, 1928.

4 UNITED STATES PATENT OFFICE.

JOHN C. BROOKS, 0F PATERSON, NEW JERSEY, ASSIGNOR TO CROMPTON 8a KNOWLES LOOM worms, cnusncrms.

0F .WORCESTER, MASSACHUSETTS, A CORPORATION OF MASSA- LOOK.

Application filed September 9, 1925. Serial No. 55,398.

My improvement relates to looms, such as plush looms, weaving two cloths, one above the other. I

one object of my invention is to provide a loom of this type by which fabrics, such as print, cheese-cloth, duck, towelling, and numerous other types of fabrics may be woven two pieces ata time one. above the other thus doubling the efficiency of the loom.

Increased efficiency in weaving-is often sought by using wide looms and then splitting the .wide piece-of cloth to form two lengths. y This, however, is an objectionable method as there are no selvages on the split edges of the cloth.

Another object of my invention is to provide a novel looni which has two sheds with two stationary shuttle boxes on one end of the lay and a vertically-mowble shuttle box on the opposite end of the lay together with means for throwingshuttles simultaneously through the two sheds, the movable shuttle box being actuatedso that after a shuttle has been discharged therefrom into one shed, said box is shifted during the flight of the shuttles into position to receive the shuttle coming through the other shed.

In order to give an understanding of the invention I have ilustrated in the drawings aselected embodiment thereof which'will .now be described after which the novel fea tures will be pointed out in the appended claims.

Fig. 1 is a front View of a loom embodying my invention; I Fig. 2 is a right hand end View of the loom with a part broken out;

Fig. 3 is a rear view of the movable shut tle box detached from the loom Fig. 4 y is a section on the line 4-4, Fig. 3; Fig. is a horizontal sectional view of the movableshuttle box. g

In the drawings P indicates the frame of a loom, the latter having the lay L mounted on the lay swords C which in turn arecar ried by the rock shaft B, and F indicates the reed carried by the lay and E the read cap. (X indicates the heddles, H indicates the filling fork grid, I the fork lever, and K the cam for actuating the latter, said cam being. mounted: upon the cam shaft A. These parts. which are shown moreor less diagrammatically in the drawings, are or may One feature ofthe presentinvention re lates to a construction embodying two shuttle boxes on one end of the lay, one for each of the two sheds, and a single movable shuttle box on the other end of the lay which is arranged to discharge its shuttle through one shed and then. to be moved to receivethe shuttle coming through the other shed.

Mounted on one end of the lay are the two sl iuttleboxes 1 and 2 each provided with the usual binder3. These shuttle boxes are stationary relative to each other and to the lay. On the other side of the lay is a movable shuttlebox 21 which is movable vertically in suitable guides 23 rising from the lay.

Means are provided for throwing a shuttle from one of the stationary shuttle boxes 1,

12 through thecorrespondin shed and. for

simultaneously throwing a s uttle from the movable shuttle box 21 through the other shed and then for shifting the shuttle box 21 into position to receive the incoming shuttle which has been thrown from the stationary shuttle box.

Theshuttle box 21 which plays up and down in the space 20 between the guides 23 differs from a regular drop box in that it has an open space through its bottom though which to eject a spent filling carrier and further in that it has a hinged bottom to meet the requirements ofchanging its inner conformations when weaving double plush, as will be hereinafter mentioned.

This shuttle box 21 has in its rear face an opening 24 to receive the binder 25 and it is supported on a vertical rod or bar 22 which is secured to the rear edge thereof, as shown in Fig. 4. The upright post or support 22 is guided by a bracket 29 fast on an extension of the rock shaft B and the shuttle box is given its vertical shifting movement by means of a cam 34 fast on the cam shaft A. For this purpose the lower end of the. supportsQQ-is pivotally connected with one end of a lever 30 which is pivoted on a rock shaftBl supported by the loom frame and at;suitablerbracket"or. support 1 32,. said lever SOArhaVingia roll .133 thereon which is actuated. by the cam 34-. This earn 3 1 is so constructed that immediately after theshuttle has been thrown from the shuttle box 21 through one shed said shuttle bbx' will. be immediately shifted into position opposite the other shed to receive the shuttle which has been thrown from one ofthe eta tionary shuttle boxes.

Assinningthat the lay yis in its vertical position with a shuttle iathe lOWGl shhttle box 2 and also a shuttle in theinovable shuttle box. 21 .and thelatter in its lowered position then as .the lay moves backwardly the cam 345i will raise the' shuttle box 2]"into position. opposite the upper shed and as'the lay passes the top center the two sl'ui'ttle s. one at the left handside' of the lay, Fig.1 more, shtittle box 2, and the other-at the right hand side of the lay in the raised shuttle box 21, will. be simultaneously thrown across the lay, each shuttle' travelling through its own shod; soon a; the shuttle has been thrown from the shuttle box' 21 the cam 34; allows'the shuttle box to drop into position shown in hi 1 where in it will receive the shuttle coining through the lower 'shedand which has been thrown from, the shuttle box 2. The shuttle which was thrown from the shuttlebox 21 through the upper shed is received in theshuttle box 1. At the nevt pick the shuttle is thrown from the shuttlebox 1 through the upper shed' and siinultaneousljrfithe shuttle in the shuttle box21 is thrown therefrom through the lower shed and as soon as the shuttle hasbeen dischargedfroinf the shuttle box 21 the latteris raised-by the cam 34 into position. to receive the shuttle comingthrough the upper shed. Thus the single shuttle box 21 at one end of the lay operates to receive shuttlesconiing through either shed and to throw the shuttles through both sheds. l y, y I

Pneumatic mechanism is herein shown for operating the. shuttles, Each shuttle 70isprovided at its end with a 71 which is formed with a vertical slot extending. therethrough; Each tip is1provided with a hollow shank 72, the bore 71 of which communicates with the vertical slot.

Each shuttle box has associated therewith an air delivery pipe through which air is discharged for blowing. the shuttles across the shed these fpipesibeing indicated at 4, 5 ant 35 respectively. These delivery iotpipes are so positioned thatwhen the shuttle enters the box they will be projected into the bore 81'of the shuttle tip as shown in Fig. 5. When the. shuttle is boxed, therefore, the end of the corresponding jet tube coinl iressed air supply. Each pipe fland'h has a'valve therein-for controlling the discharge of freshail-through the jetpipe,

these valves being indicate'dfat 6 and 7 re spectivelyn' Thevalvefi has an arm 10 by which it is actuated, said arm beingico'nr nected by a link to a lever 14; that in turn is pivotally.inounted.on'a sh'aftor'rod 16. said lever l-llbeingiacted upon by a cam 18 fast on. the cau'r shaft TA. Similarly. the valve 7 is provided with an a1.'in.11 which is connected by a link 13 to oneend of a lever also pivoted on the rod 16, said lever: 15

being acted upon by a suitable cam 19 on the camshaft A."

The jet pipe is connected-by a flexible pipe connectionf35f of surplus length to a valve 36 which is supported by" a bracket 87km the end the lay, the valve being supplied with compressed air through a pipe 538. The flexible pipe Connection 35 permits vertical movement of the shuttle box 21 withoutdisrupting the air connections.

The valve 36 is provided with an arm which is connectedby a link-61 to alever 62' pivoted on asupportingshaft 63. said1 lever. having a roll 64 at its ends which engages and is acted on by a cam 65' fast on-the cam shaft" A. The cams 18,19 and 65 are so designed and timed that the valves 7 and. 36 will be operated in the proper sequence to throw the shuttles across the sheds as above described... I

The loom frame has a supporting bracket- 39 secured to its front portion, which bracket carries a stud ill'lo'n which is mounted the filling magazine M. This bracket alsosupe ports the transfer lever 12' by which the filling is transferred from the magazine to the shuttle, said leverbeing pivoted tothe bracket 39fat. Q I

Mindicatesthe feeler' which is slidably mounted in a bearing or'support 91 formed on the bracket and. is'provided with a pin 92' adapted to engage the upper end of an elbow" lever 15 which is pivoted to the bracket 39 at 93'. The horizontal arm of this. elbow lever is connected by a link 48 to a push pawl or'bunt'er 47 the latter being pivotally connected to the upper end of an elbow lever 46' t'hat is pivoted at 94 to the bracket 39. The horizontal end 49of the lever 46 rests on and is actuated by a cam 50fast on the cam shaftA. At each rotation of the cam shaftA, therefore, the elbow :lever 46 will be vibrated and the hunter 47 will be correspondingly vibrated in a horizontal direction. 1

The fillingreplenishing lever 42 is actuated by a lever 43 which is pivoted to the bracket 39 at 95. This lever 43 in turn is given its operative movement at the proper time by a pusher or contactpiece 56 which is mounted on a rod 55 that is slidably mounted in bearings54 and 53 carried by the bracket 39 and the loom frame respectively. This rod 55 is normally held in its rearward position by means of a spring 57 which encircles one end of the rodl and .is confined between the bearing 53 and a collar or pin 58 on the rod.

The feeler 44 co-operates with the shuttle which is in the movable shuttle box 21 and filling transfer ismade while the shuttle in said box 21. The feeler 44 thus co-opera-tes alternately with the two shuttles,

said feeler engaging the filling in one shuttle during one pick and the filling in the other shuttle duringthe next pick. So long as either shuttle contains a reasonable amount of filling then on each forward beat of the lay the engagement of the feeler with the fillin will force the feeler backwardly thereby operating through thelever 45 and link 48 to raise the hunter 47 above the contact piece or pusher 56. It will be remembered that the hunter 47 is being vibrated in a horizontal direction through the operation of the cam 50 but so long as there is filling in either shuttle said hunter will. be raised abovethe contact piece during its excursion to the left'and, therefore, will not engage said contact piece, when, however,- the filling in any shuttle becomes exhausted the feeler will not have the requisite movement when the lay beats up to raise the hunter 47 above the contact piece 56 and saidbunte'r will, therefore, engage the contact piece'and as the hunter is moved toward the left by the cam 50 said bunter will engage the contact piece 56 and move the latter also to the left. Such movement of the contact piece will bring it into engagement with the lever 43 'thus swinging said lever to the left and as the upper end of the lever engages an arm of the transfer lever 42 said transfer lever will be operated to transfer the hunter from the magazine to the shuttle. The spring 57 returns the parts to their normal position as the lay moves back.

The lever 43 is provided with an arm 51 which engages a pin 52 carried by the feeler 44. By means of this construction whenever the arm 43 is moved to effect transfer of filling the feeler 44 will be withdrawn from the path of the incoming bobbin so that box 21 into position-to throw the shuttle through the upper shed and as the lay passes the top center the cam 19wvill operate to open the valve 7 and cam (i5and will actuateits lever 62 toopenthe valve 36' with the result that the shuttle will be thrown from the shuttle box 2 through the lower shed and the other shuttle will be thrown simultaneously from the raised shuttle box 21 through the upper shed. Assoon as the. shuttle has been discharged from the shuttle box 21, said box will be dropped to its lowered position to receive the incoming shuttlefrom the left hand'side of the loom which is travellingthrongh the lower shed. At the next pick of the loom the shuttle box 21 maintains its lowest position until the shuttle therein has been thrown through the lower shed, the shuttle then in the upper shuttle box 1 having been simultaneously thrown through the upper shed. When the shuttle has been dischargedfrom the lower box 21 the latter will rise to receive the upper shuttle travelling through the uppershed and will then be lowered to pass under the filling magazine, this movement being accomplished by the operation of the cam 34. At each beat up the shuttle box 21 is in its lowered position, in which position the shuttle therein islocated correctly to be engaged by the feeler 44. Said shuttle box thus is placed in a predetermined positionat each beat up and each shuttle is thus brought into position to receive new filling supply at alter nate picks.

The usual filling fork motion H, I, K serves to stop the loom on total absence or breakage of the filling.

The above relates to the weaving of. a. double plush fabric in which the top shuttle is supported by the bottom warp threads of the top shed during its travel through the shed. For this purpose the outside shape of the top shuttle is formed to conform to the angle of the warp threads while shedding. To meet this condition the bottom 28 of the shuttle box 21 is pivoted as shown in Fig. 4 and when the shuttle box 21 is raised as above mentioned the bottom opens slightly as shown by dotted lines Fig. 4 to conform to the shape of the shuttle. The box bottom 28 is shown as pivoted to cars or projections 26. 27 at the ends of the box.

lVhcn weaving two distinct fabrics I provide a rigid bridge to support the running loo topshuttle; saidilhnidge. beingr herein shown as a railf90 Which is secured to; the lay.

Havingrdescribed my inuention: so that it can be understood by these versed in the art, I claims v 1'. In a a loom havingrtwo Warp: sheds,ia11ai two superposed? shuttle boxes on: onecnd' of the lay, a single shift'able shuttle box; on the other end of: the lay, means for throwing; a shuttle from one of the two shuttle boxesthrou'gh one Wanp: shed, means for simultaneously,throwing? a shuttle from the single shuttlebox through; the othen Warp shed, and means to shift the single shuttle box. after the shuttle is thrown therefrom into: position to neceive the shuttle coming from the opposite end of the: lay;

2;; lina loom havinglt'wo wanpsheds a lay, two shuttle boxes on: onea end: oi; the lay.v a single shiftable shuttle box. on the other end of: the: lay pneumatic means ton throwing: a shuttle from: one of: the two shuttle boxes through one warp shed and for simultaneously throwing a shuttle fronnthe single shiftable shuttle; box through the other wanp shed and'lmeans: to shift the single shii'table shuttle box: aftenthe: shuttle'has been throw-n therefrom into position to receive the shuttle coming front the opposite end oh the lay.

3; In alooln-han'ing two warpsheds :1" vi:- brating lay, twoshuttleboxeaon one endi oi the lay stationa-rily mounted relative tozeach other i, aqsingle shittableshuttle box on the other end of the lay, means for throwing a shuttle troms one of the two shuttle boxes through one Warp shed, means for simnh taneously throwing a: shuttle; from i the single shuttle box through the other Warpi shed, and means: to shift the: shiftalller shuttle. box aiftertheshuttle has been; thrown therefrom into positioln to receive the shuttle coming: from the; opposite endof thelay and toqplaoe said shuttle box: ina a. predetermined position at; each: beat-up of the lay.

l. In a loom having two warp' sheds; a vibrating lay, two shuttleboxes onzone endot the lay stationarily mounted relative to; each other, a single shiftable shuttle box on: the other endxotthe; lay, meansfonthnowing a shuttle from one; oi thetwo shuttle boxes through one Warp: shed, means ton simul taneously throwing a. shuttle from the" single shuttle box thnough the othen warp shed, and means to shift the shittablo shuttle box after the shuttlehas beensthrown tlierci a shuttle-trout one of; the two shuttle boxes neeagaon through: one Warpshech. means fen simultaineouslyv throwing-a:v shuttle from; the single shuttle.- box throughthe: other ,Warpshed, means topshi ft the shiftable shuttle: hon atter tlie shuttle has been thrown therefrom into position to neceivethe. shuttlecomingiieom the-opposite end of the lay and: to place said shuttle box in a predetermined position at each, beat-up-of theday, a feeler'to co oipenate Withthe shuttle in said shiftable shuttle box as the lay heats up and .lillingencplenishing mechanism rendered operative by said feeler upon exhaustion of filling in the shuttle then in the shiitahle shuttle box.

6; In a loom having two Warp sheds, a vibratinglay having; on; one end a single s-h' able shuttle box, means for throwing said shuttleiiromi said shuttle box through one shed and simultaneously throwing: a shuttle from the opposite end of the lay through: the other sl1ed', means tosliift said shittab'leshuttle box aiiten the shuttle has beenithrown therefrom into position to ne'- ceive the shuttle coming; through the other shed and to place said shuttle box in a= predetermined positiontupon eacln beat up of the.lay'.

7. In at 100m having t vo Warp sheds a vibnating lay having; on one end' a single slii'ltableshuttlebox, means for throwing said shuttle .fnonl said shuttle box. through one shed and simultaneously throwing: a shuttle from the opposite end ot the lay through the other shed. meanssto shift said shift-able shuttle box after the shuttle has beenvthrown theretnonr into positiom to 1 0- ceive the shuttle coming; through the other shed and toplacesaid shuttle box. in a; pie determined? position: upon each! beat-up of the lay a feeler positioned to be engaged by the filling in the: shuttle that is in: said shittable shuttle box at each beat-up of the lay, and fil1ing-replenisl1ing mechanism controlled: astoits operation by said: teeler.

8:111 a Weft replenishing loom a lay, a plurality of. shuttles a shittahle; shuttle box at one end; of said lay, a magazine mounted at the end of? the loom adjacent said shiftableshuttle box,, means to bring said: shittable box to apredeter1nined vertical. position relative to said-magazine for We tt replenishment as the lay approaches front; center, and-1neans= to" tran s'fer a fresh weft carrier to a shuttle in: said shiftable box.

9;.In a Weft replenishing loom, a lay, a plurality of shuttles a plurality of superposed shuttle-boxes at one end of thelay, a shittableshuttle: box at the opposite end of the lay, a Weft replenishingmagazine mounted at t'he'end: of the lay adjacent said shiftable shuttle-box, a Wett. detecting mechanism effective to indicatesubstantiali Weft exhaus tion: in any one of said shuttles, means to move the. sliizttable shuttle box and the shuttle theneim vertically ona said lay to a a predetermined position for weft replenishment, and means to transfer a fresh weft carrier from said magazine to said substantially exhausted shuttle.

10. In a loom, a lay, a weft replenishing mechanism at one end thereof, a plurality of shuttles, means to receive a shuttle at different elevations on the weft replenishing end of said lay, and means to present each shuttle atthe same predetermined vertical position for weft replenishment.

11. In a loom, a lay, a weft replenishing mechanism at one end thereof, a plurality of shuttles, means to receive a shuttle at different elevations on the weft replenishing end of said lay, and means to present each shuttle at the same predetermined vertical position for weft replenishment and to restore said shuttle to initial position between the arrival and departure of said shuttle at the weft replenishing end of said lay.

12. In a loom, a lay, a weft replenishing mechanism at one end thereof, a plurality of shuttles, means to receive said shuttles at each end of the lay, and means to present a shuttle at the weft replenishing end of said lay in a predetermined position for weft replenishment and t0 thereafter restore said shuttle to its initial position between the arrival and departure of said shuttle at the weft replenishing end of the lay.

13. In a loom, a lay, a Weft detecting mechanism at one end thereof, a plurality of shuttles, means to receive said shuttles at each end of the lay, and means to move a shuttle at the weft detecting end of said lay from initial position to a predetermined position for weft detection and to thereafter restore said shuttle .to its initial position during a single oscillation of the lay and between the arrival and departure of said shuttle at the Weft detecting end of the lay.

In testimony whereof I affix my signature.

JOHN C. BROOKS.

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