US822103A - Pile-fabric loom. - Google Patents

Description

I PATBNTED MAY 29, 1906.

, J. K. DALKRANIAN.

PILE FABRIC LOOM.

APPLICATION IILEHDEO. 1, 1904.

4 ganms-snnm 1.

% j -fizz.-

W? mm W WITNESSES:

. v ATTORNEYS PATENTED MAY 29, 1906 J. K. DALKRANIAN.

"TPILE'PABRIG LOOM.

APPLICATION FILED DBO.1, 1904.

4 SHEETS-SHEET Z.

lam-=1.

INVENTOR iunesjifialkranian Fr? Z...

, W/TIVESSES:

ATTORNEYS PATENTED MAY 29, 1906.

J. K. DALKRANIAN.

I PILE FABRIC LOOM. APiLIOATION FILED DEG. 1, 1904.

4 SHEETS-SHEET 3..

I WITNESSES:

PATENTED MAY 29, 1906.

J. K. DALKRANIAN. PILE FABRIC LOOM. APPLIOATIUN FILED 1330.}, M04.

4 SHEETS-SHEET 4.

. mus

' finzesfifialkrazzziau NTOR ATTORNE isrepresented in the accompanying drawings,

weaving a pile fabric having Turkish knots.

1 weave. Fi 9 is a sectional side elevation of '35 trated in the drawings the ground warp warp-threadsc a of threads 0 c in such a urrnn s ra'rns rarnn r orrion.

JAMES KARMI DALKRANIAN, or New YORK, N. Y., ASSIGNOB TO NAZAR COSTlKYAN OFNEj V roan, N. r.

PELENFAERHQ LOOit lu Specification of Letters Patent. .Patented Ma a, 1906.

Application filed December 1, 1904. Serial No. 285,021.

thread (3, then rearward under this weftthread, then u I ward in the rear of the weftthread c, then orwardly over the weft-thread c and over the next following weft-thread c, then down in front oi this weft-thread c, rearward and under this weft-thread and. up in the rear of the weft-thread c for the pile warp-thread, then to pass up over a pile-wire d, and then down in front of the next weftthread 0 to repeat the above-described operation. Thus from the foregoing it will be seen that the pile warp-thread i) I is completely looped around a weft-thread in a downward and rearward direction and the pile warpthread is extended upward twice between each pair of weft-threads c c and passed over a ile-Wire d between successive pairs of Wet-threads, as will be readily understood by reference to Figs. 3 to 8, inclusive.

In order to weave following arrangement is made: The ground warp-threads a a unwind from the usual warp-beam A and pass through heddles B B, respectively, and the pile warp-thread b to be looped around the pairs of weft-threads c c unwinds from, a warp-beam C, preferably journaled overhead in the loom-irame D, which also. carries a breast-beam E for the finished fabric. The pile warp-thread 6 passes through an opening F into the hollow portion of a needle F of segmental shape, se cured at the end of its solid portion on a shaft G, mounted to rock in suitable bearings car- ,ried by a lay H, mounted to slide longitudinally iii-suitable bearings arranged on the main frame, D of the loom. the lay H is pivotally connected by a link I with the roek-arm I of a roclcshalt J journaled in suitable bearings on the main frame D and receiving the usual rocking motion for impartinga reciprocating motion to the lay H; The pile warp-thread Zr passes through the hollow or free end portion of the needle F to leave the same at the mouth or point F of the needle, and the said needle Fs so arranged as to pass between adjacent ,pairs of ground warp-threads a a when imparting a rocking motion to the shaft G and the needle F, it being understood that the shaft G is rocked in unison with the shaft after more fully described.

On the shaft G is fastened a pusher K, pref- To ILZZ whom it. may concern.-

. Be it known that LJAMns KARMI DALKRA; NIAN, a citizen of-the United States, and a resident of the city of New York, borough of Manhattan, in the cOunty and State of New York, have invented a new and Improved Pile-Fabric Loom, of which the following is a full, clear, and exact description.

The object of the. invention is to provide a new and improved loom more especially designed forweaving woven pile fabric-such, for instance, as shown and described in the application for Letters Patent of' the United States, erial No. 227,663, filed by ine October 8, 1904:.

The invention consists of novel features and arts and combinations ofthe same, as will c more fully described hereinafter and then pointed out in the claims.

A practical embodiment of the invention.

forming a part of this specification, in which similar characters of reference indicate corresponding'parts in all the views.

Figure 1 is'a longitudinal sectional elevation of the improvement as arranged for Fig. 2 1s a transverse sectionv of the same. Fig. 3 is an enlarged sectional side elevation of the knot-forming mechanism, the lay, and heddles. *igs. 4, 5, 6, .7, and Bare similar views of the same, showing the parts in various positions required" for forming the a fabric wit a Persian knot. Fig. 10 is an enlarged perspective view of one of the needles employed for forming the Turkish knot. elevation of the knot-forming mechanism for making a Persian knot,- and Fig. 12 is a plan view of part of the shogging-comb.

In'the fabric to be woven by the loom illusthreads a a are arranged in pairs, and a pile warp thread 1) passes between ,the ground each pair, and the said pile warp-thread I) is looped around the weftmanner as to roduce an oriental knot-for instance, a Turkish knot (shown in Figs. 3 and 8) or a Persia knot. (Illustrated m Fig. 9.)

In forming the Turkish knot the ile war the fabric described, the

The rear end of J, as hereinr05 erably in'the form of a flat plate lying in the weft-threads c c throug same vertical plane as the needle F, and the peripheral edge of the said pusher K is spaceda distance from the point or mouth F of the corresponding needle F to provide an exit for the weft-thread, as hereinafter more fully described.

In order to impart the desired tension to The tension-rod'li is supported at its ends on arms L, having trunnions L journaled in suitable bearings arranged on the main frame D, and on one of the said trunnions LP is secured. an arm L connected with one end of a spring L", attached at its other end to a bracket U, secured to or forming part of the main frame D; The spring L exerts a downward pull on the arm L to hold the tensionrod L normally in a rearmost position, but to allow the said'tensionrod to yieldthat is, to swing forwardwhen a pull is exerted on the pile warpthreads b by the needles F.

The shuttle mechanism N for passing the h the open shed'and the pile WQIPlOOPS is of any approved con struction, and further description thereof is not deemed necessary.

In order to shift the pile warp-threads b transversely every second pick, a shogging device 0 is provided to bring each pile warpthread I) alternately'to opposite sides of its needle, so that the pile-arms of each Tiirkish knot standto one side of the connecting portion from one loop to the other. s s

, F (see Fig. 10) and on the other side with a The shogdevice 0 is preferably in the form of a comb moved longitudinally in enga ement with thepile warp-threads, then shifte transversely to shift the pile warp threads to one side, and then moved longitudinally back to the starting position.

The mouth of each segmental needle is provided on one side with a long \i-shaped out shorter \I-shaped cut F*, the pile warp-thread I) normally extending through the cut F that is, at the time-the shogging deviceis out of engagement with the pile warp-thread and when the shogging device is in engagement with the pile warp-threads and shifts the same transversely at the time the needles are up then the pile warp-threadsare'engaged by the cuts F on the next downward swinging motion of the needles.

' The operation is as follows: When the several parts are in the position illustrated in seams Fig; 3 then each needle F isin-a raised position, while the corresponding pusher K is in a lowermost position, the pile warp-thread having been looped around the last weft-thread c and the ground warp-threads a 0/ having been crossed to open the shed. by a correspending movement of the lieddles B and B.

ward between adjacent pairs of ground warpthreads a a, the said pairs being held spaced loop formed by the pile warp-thread b at the needle F, and when the weft-thread c has thus been passed through the several warp-thread loops then the shaft Gris roc ed in the reverse direction-that is, in the direction' of the arrow as (see Fig. 5)-the tension of the several pile warp-threads being now taken up by the tension-rod -L swinging rearward from the forward position it assumed at the time the needle Fswung downward, as

previously mentioned in reference to' Fig. 3. The weft-thread c is now pushed forward by the pusher K, which now swings downward the needle F moves upward, (see Figs. 6 and 7 and when. the needle F and. the pusher K have returned to their uppermost positions (shown in Fig. 7) then the lay H is caused to slide forward, so that the several ushers K beat in the weft-thread c' to a mal position, (see Fig. 8,) it being understood that during by the action of the tension rod L, so that the pile warp-thread islooped around the said weft-thread c in front of the same and the pile warp-thread to pass up in the rear of the weft-thread c. When this has been done,

mer position, and the heddles B and B now change, sons to cross the warp-threads a a in front of the weft-thread c A pile-wire d is theninserted, and the above-described'operation is repeatedthat is, the needle F is caused to swing downward to draw the pile warp-thread I) over the pile-wire to then form the loop, after which the shuttle is sent through the loop to pass the next weft-thread 0 through the loop, after which the needle F as indicated inFig. 4,

the fabric already formed.

this first preliminary heat-- ing inand the final beating in of the weftthread 0 the pile warp-thread bis drawn taut in a downward and rearward direction for.

the lay His immediately returned to its for apart by the corresponding pusher K, which v ile is returned, and this weft-thread is beaten in threads on the return movement of the needle' in the same manner as above described rela tive to the weft thread c.

It is understood that the pusher K and the corresponding needle F are so arranged that when the needle swings downward and the pusher upward the pairs of adjacent ground warp-threads a a are held apart .by the pu her until the free end of the needle has p: :d between the pairs of ground warpthreads, and in a like manner the needle F remains between the said pairs of ground warpuntil the pusher has passed back between the said pairs of ground warp-threads, so that a proper looping of the pile warp-thread around the weft-threads takes place, the loops being at all times between adjacent pairs of ground war -threads.

en the segmental needle Fswings downward, the opening F is below the horizontal plane of the fabric, while the point or exit end of the needle is above the said plane, and as a portion of the pile warp-thread 1 extends downward from the tension-rod L i o the opening F and another portion of the pile warpthread also extends from the free end F to the fabric and a portion of the pile warp thread is concealed in the hollow portion of the needle it is evident that a complete loop is formed at the needle for the weft-thread to pass through. New the needle returns to an uppermost position the loop is drawn around the weft-thread, beginning at the front ofthe weft-thread, then downward and rearward under the weft-thread, and finally upward in the rear of the weft-thread. By having the needle F swinging in a vertical plane the loop formed on the pile warpthread bis disposed vertically and its opening is in transverse alinement with the 0 en shed for the ready passage of the weft-thread through the loop and the open shed.

When the needle swings upward on its return stroke, the space or weft-exit between the needle-point and the pusher comes opposite the fabric, so that the weft-thread can readily pass out of the crook of the needle.

It is understood that the loop-forming devices for the pile warp-threads, the tension device for drawin the loops tight around the weft-threads, the heating-in mechanisms, the heddles, and the shuttle mechanism all operate in unison to produce the result above described, and I do not limit myself to any particular means for actuating the parts in unison, as the said means may be varied without deviating from the invention.

A pile-wire d is inserted only after a pair of weft-threads c a have been looped by the pile warp-thread, so that when the pile-wires are withdrawn and the face-loops are thus cut it is evident that a Turkish knot is had on each pair of adjacent weft-threads.

If a figured pile-face is to be produced in the weave, then the pile warp-thread I; used i is one that is colored. in sections, or what is technically known as drum-printed warp.

In order to make the Persian knot, (illustrated in Fig, 9,) the first weft-thread c is passed through the open shed in front of the needle F when the latter is in nearly a lowermost position, as shown in Fig. 11, and then the needle F is caused to swin upward to pass the pile warp-thread h under the weftthread 0 and up on the right-hand side thereof, and thenthe heddles are changed and the closed pile warp-thread loop is formed, as above described, and shown,in' Fig. 4, and the second weft-thread c is then passed through the closed loop, and this weft-thread c is then beaten in, as shown in Figs. 5, 6, 7, and'8, after which the lay is moved rearwardly and the needle F again liq wung dowmvard to the position shown in In order to produce the desired result, it is only necessary to. give the lay a longer reciprocating movement to bring the needles into the two positions relative to the shuttle mechanismthat is, for'the one weft-thread v c to pass through the open shed and loops formed by the needles (see Figs. at and 5) and the other weft-thread. c to pass through the open shed in front of the needles and above t1 2 pile warp-thread, as will be readily understood by reference to Figs. 9 and 11.

For weaving the Persian knot the shogging device@ is dispensed with and the needles are provided only with the cut F as the pile warp-thread extends on one side of the needle only. v

. Having thus described, my invention, I claim as new and desire to secure by Letters Patent 1. A pile-fabric loom provided with a reciprocating lay, a rock-shaft mounted there on, hollow curved needles secured at one end to the said rock-shaft, and pushers secured on the rock-shaft and lying in the same'plane as the said needles.

2. A pile-fabric loom provided with are ciprocating lay, a rock-shaft mounted thereon, hollow curved needles secured at one end to the said rock-shaft, and pushers secured on the rock-shaft and lying in the same plane as the said needles, the point of each needle being a short distance from the peripheral edge of the corresponding pusher.

3'. A pile-fabric loom comprising a warpbeam for the ground warp-threads, a warpbeam for the pile warp-thread, heddles for the ground warp-threads, a reciprocating lay provided with a rock-shaft, hollow curved needles on the said rock-shaft, a'tension-rod intermediate the said needles and the said warp-beam for the pile-warp threads, pushers on the said shaft in the form of flat plates lying in the same plane as the said needles, and means for the insertion of the weft.

4 A pile-fabric loom comprising a warpheam for the ground warp-threads, a warpbeem for the pile warp-thread, heddles for the ground werpthreeds, a reciprocating lay *rovided with e rocksh2tft, hollow curved needles on the said rock-shaft, a, tension-rod intermediate the said needles and the said warp-beanrfor the pile werp-tl1reeds,pushers means for the insertion of the on the said. shaft in the "form of fiat plateslying in the same plane as the said needles, weft, and a shogging device for the pile warp-threads.

5. A pile-fabric looin provided with a segmental hollow needle for the passage of the pile warp-thread and mounted to rock, a

to rock, means for the insertion of the weft, and means on the said lay, operating in.

unison with the said needle, for pushing the wegt out of the needle and beating in the said we t.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

' JAMES KARMI DALKRAN A T,

Witnesses:

THEO. G. Hos'rm'r, EVERARD BOLTON MARsnAm

Images