USRE9049E - lyill - Google Patents

Description

3 Sheets-Sheet 1.

-J L Y A L L, VAssig'nor, by mesne assignments, to R C. ELLIOTT, Trustee of THE POSITIVE MOTION LooM COMPANY,

v L o o m I No. 9,049. Reissuejd Jan. 20, 1880.

3 Sheets-Sheety 3.

J. LYALL,

Asslgnor, by mesne assignments, to R C. ELLIOTT, Trusgee of THE PosITIvE MOTION Loom COMPANY,

' v L o o m Reissuefd lan. 20,1880.

v F/a.

, ri er.

UNITED STATES JAMEs LYALL, or NEW YORK, N. Y., AssIeNon, Bv MEsNE ASSIGNMENTS,

TO RICHARD (l.

COMPANY.

ELLIOTT, TRUSTEE OF 'THE POSITIVE MOTION LOOM LOOM.

SPECIFICATION forming' part of Reissued Letters Patent No. 9,049, dated January 20, 1880.

Original No. 133,868, dated December 1U, 1872. Application lor Reissue filed May 20, 1879.

To all whom it may concern Beit known that I, JAMEs LYALL, of the city and State of New York, have invented and made au l inprovement in Looms for VVeaving; and the following is declared to be a correct description of the same.

In Letters Patent No. 40,685, granted to J. W. Drummond, there is an endless belt for giving motion to the shuttle propeller or cai" In this ease the belt that gave motion to the shuttle-driver was in a stationary raceway. In Letters .Patent No. 80,982, granted to me August l1, 1868, the said belt and shuttlepropeller are-on a raceway on the lay itself, and move with it; but the belt extends down wardly to near the axis of 'the lay-swords, so so that the belt does not become loose.

` In my present invention the lever that moves the belt and shuttle-prolmller is mounted upon andthe shuttle itself is guided with greater precision than in the aforesaid patent.

The shuttle is adapted to taking up any slack thread, and then giving;` the same out again, without undue strain upon the edge of the fabric from thetension of the weft-threads, and the take-up mechanism is adapted to irregular fabrics, such as corsets, for keeping' the edge of the fabric in a straight line While weaving gol-es.

In thc drawings, Figure l is an elevation, partially in section. Fig. 2 is a plan. Fig. 3 is a section transversely of the lay. Fig. 4 is a section, in larger size, of the raceway for the shuttle and its propeller. Fig. 5 is a sectionot' the take-up mechanism. Fig. 6 is an elevation, about half-size, of the shuttle and its propeller, and Fig. 7 is a plan ofthe bobbinholder and weft-regulator separately.

The frame of the loom is made with theA ends a a connected bythe front and back bars, 5o b c, of suitable size, and the cords of the jacquard, when that is employed, pass through the frame or harness-board at c in any usual manner. e

The main shaft d is revolved by competent 5 5 power, and has'cranks e for the connectingrods f, that are jointed to the lay-swords g, and these are pivoted at 2. The lay carries a reed, h, and also the rail k, somewhat similar to those in my former patent. I, however, 6o make this rail adjustable by means of screws 3 passing through arms 4, that project above the lay, so as to regulate accurately the space provided for the shuttle between said rail k and the raceway Z. This raeeway l is adapted 65 to receive the shuttle-propeller m, that is made v with rollers 6 and 7, substantially the same as in my aforesaid patent; but instead of the device becoming a shuttle-carrier, it is simply a shuttlepropeller, because the sh uttleruns upon 7o the ledges 8 at the top of the raceway, the lower rollers, 9, of the shuttle m' being made llonger, so as to rest upon such ledges, and the rollers 6 of the propeller project up between these ledges sufficiently to act upon the rollers 75 9, in propelling the same, in a manner similar to that in aforesaid patent. l By thisconstruction the shuttle is held and steadied in place, the rollers 9 taking a broad bearing, and there is not any risk of injury to 8o the warps.

The upper rollers of the shuttle are similar to those in aforesaid patents, and the receiver that carries the bobbiu or cop is removable from the shuttle, as in thePatent No. 116,609'. 85

At the ends of the raceway in the lay'are the gates 10, that are made' to be drawn up vertically in slides l1 in the lay,.so as to allow the shuttle to be removed from the Widest side of the raceway. The faces of these gates are 9o in line with the surface of the reedsso as t0 support the back of the shuttle.

The bands or belts a, that are employed to actuate the shuttle-propeller, pass at the ends of the lay over the rollers 12, andreceive mo- 95 tion from the motive power acting through mechanism that moves with the frame of the lay.

35 v tion of thelmovement land farther from the There is a 1,ever,p, that has its fulcruni 13 upon the cross-bar a' of the lay, and this lever is moved by the crank 17 and connecting-rod r to the piu l5, and gives motion to the shut- -tie-propeller through the band or belt a.

v Between the swords of the lay gis a segmenlal rack-bar, g, the teeth o` which take the teeth ot' a pinion on the axis of the roller o, to

revolve the said roller as the lever p, that carries the same," is moved 'from side toside.

The ends ot' the band a are to be connected 'with the roller o in opposite directions, so as to Wind and unwind the same, and` give the necessary extent oi movement to thebelt and the shuttle-propeller carried by the same.

The swinging link o is pivoted to the bar 1G and suspends the pin 15. i

The shaft r, that revolves the crank 17, receives its motion from the counter-shaft '8, that is rotated at halt the speed of the main shaft d by the gearing s.

It will now be evident that Vthe lever p is vi-v brated with rapidity, but stopped gradually at each end ot' the movement, because the crank 17 gives an accelerated movement at tbe middle ot' the Ystroke from the connecting'- rod and gradually stops 4 the n1ot-ion,and'

this would be the case if the connecting-roti were attached directly tothe lever p, which, in some instances, mightbe done; but the acl celeratiou isstill further increased in the central portionsof' the stroke and lessened'toward the ends in consequence ot' the crank-pin l5 ofthe link o' moving in the slot 33, and being -nearest to the fulru'm 13 in the middle pori'uleruin at tbe'commencement Vand ending of each reciprocation, and swinging almost in vthe line ot the slot when the lever is in iti-s diagonal positions at the ends l' the movement.

y By changing,r the position of the pivot of the link ofthe motion given to the shuttle can be varietwithout any'othefr change, becausel the; movement will -be greater bybringing the piu' l5 farther-'down in the slot toward the ful crum 13 ot' the llever-p, and the reverse; The

' .size of the band-wheel 0, or ofthe pinion,

also allows for varying the movement of the shuttle. t

The segmental rack-barqrcvolves the'roller o, and the upper part of' said roller is turningin the saine y'direction in which the roller o is carried bodily. Thereby the band or belt-that woundupo'n the roller o lmoves the shuttle propeller the extentvdueto the 'winding up, in

addition to thatA resulting iroint'hechange inl the position ofthe roller. Thereby 'a large ex- 'tent'oi' inotiouis given to the" shuttle in proportionto' the chau-ge of position of the roller o.

Shuttlesl'iave been vmade with' spring-arms ca-irrying'eyes 'for the th read topass' through.` l have improved the shuttle by applying anindia-rubber cord, 18, passingfaround pulleys or groved rollers 19, and attached to the ari-ns t, so that a long spring can be introduced ina smali space, thereby insuring greater uniformity of tension onthe weft-thread, lesseniugl cost of manufacture, and introducing the parts intoa small compass. The rubber spring may extend from one .arm to the other, as shown, or two pieces may be used, passing around the respective pulleys, and the ends attached to eyes on the shuttle.

In weaving corsets or fabrics with gores orirregular surfaces it is necessary that the material woven should be taken up as woven, in order to present a straight edge for the next weft-thread. In handA looms this has been accomplished by drawing` the goods by weights and hooks und a range of holdingpins and sectional rollers operated bythe jacquard, and brushes have also beenemployed. In all cases it is important that the point ot' tension from the take-up device should be as near to the reeds at the extreme movement as possible, and where rollers or brushes ot' a large size are used the grasping-points, being immediately below the centers of the rollers, cannot be close to the point oi' beating up.

' This part of' my-inventio'n consists in a belt or series of belts passing'over an'act-natingrollen and a' small roller, saidfbelt acting against the surface of a curved plate, and thereby obtaining a suiiiciently irtn hold upon the fabric to draw the4 material along when pressed toward the belt by the lay in beating up the weft-thread, and when the fabric does not require to be taken up the belt slips on thc same. is grasped will be very close to the point of Weaving, and the 'rails ot' the lay in my loom can pass above and below the take-tiprapparatos. Y

The roller a is rotated progressively each blow ot the lay by the ratchet and pawl 22, that is moved by the cam o, lever n', link 23, and arm 24, and this roller is supported in bearings w at the ends, and may be continuous across the entire width ot' thc fabric, or made to receive the pressure-levers 36 at snit- Thereby the point at which the fabric IOO IIO

able distances apart.- The belt or belts a' pass f over this roller u, and also around' the small distendiugrlolleror stretcher 35, that is con,- tiguons to the plate y, and the fabric is drawn by the belts as much as the lay presses the same up in beating in the filling. The surface of the plate y, being; curved upwardly,

causes the belt to take a firm bearing thereon,

and accordingto the position of the stretcherY v't'ached to the edge of y, so that they can be positioned muchnearer to the point of weaving than the needles-heretoibre used, because they occupy less room. A second range of endless belts might take the place of the .plate y, the fabric being drawn in between the belts.

I claim as my invention- 1 i L The roller o and pinion o, connected.

-:thereto, the stationary bar.. segment q and leverp, iu combination with the belt ln.,

[shuttle and shuttle-driver, and mechanism for moving 'the lever, substantially vas' set'forth.

2.l In combination with fthe lay, shuttle driver.` or propeller, and its belt n, the lever p',

roller o, mechanism for rotating the roller, the y link o', connecting-rod r', crank 17, and-Brank- "stantially as set forth.,

" i'lThe lay provided with a-r'aeeway having .ledges 8,-ineombination with the shuttle m',

"rollers 9, shuttledriver m, and its rollers 6,',

.thatproject up between the ledges 8 and actl upon. the rollers 9, substantially as set forth. fdr. The Aarms 't, having eyes for the weftthread, an elastic co'rd, and rollers for the saine j topass around, in combina-tion with the body of vthe shuttle, substantially as set forth.

" 'the-purposes vset forth.

the lay, rollers at the ends of the lay, around4 which the belt passes and returnsv below the reed, a eiank for giving motion, and mechanism,` substantially as specified, upon the laymme felwxumeetin'g theorem; with-"thebel-t; andlgiving motion to the same and to thev sh`uttle propeller, substantially as set forth.

gage the levexggrnba y. `7. The lay-having ,rolers near its ends, the belt passing `aroundsnfifrollers, and the 35 shuttle-propeller, in wnbination with a lever pivoted upon the layfmeasi'si'orconnecting the belt and lever, and'luebhanism, actuated substantially as speoi'edffpr-giving motion .f to the lever and belt. 4o C l8. The combination, in a takeup, f-an aetuseoond'rolleror'stretehe; a: belt' I' -or'seres of belts around these rollers, and a Surface, toward which the belt presses', sub` stantielly as setforth. I l Y 4 45A 9. The adllustable levers 36in combination" with theifoler u, stretcher'35, feeding-belts w, and surfa y, Substantially as set forth. 10. The leverpeor1nectingrod Ar', and eran` 17 for giving m'ot'ionito the lever,'i|1 combina tion with the lay, the swinging erank or link o', and the devioe'tliat eonneetsthe rod r'to the lever, whereby the Vlatteris moved` nearer to or 'farther from the fulerum of the lever and the movement of the lever-aqcelerated or retarded, substantially as set for( ,2

11. The metallic plate y', hav y Lteeth upon its edge,in combination with the y 'te y and r take-up mechanism, substantially Tand for the purposes set forth. -c Signed by me this 18th day. of April, A D. l1879.

sys

' r'JAMES IJYALL." witnessed -l GEO. T. PINGKNEY, CEAS. H. SMITH.

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