US2048456A - Flat wire for weaving single piece pile fabric - Google Patents

Description

July 21,1936.

J. KREHBIEL FLAT WIRE FOR WEAVING SINGLE PIECE FILE FABRIC Filed April 8, 1952 Ill I N VEN TOR JOHN KREHB/EL.

A TTORNE Y.

i aten ted July 21 1936 UNITED STATES FLAT WIRE FOR WE VING SINGLE PIECE-PILE FABRIG .lolm Krehb iel, Bronx, N. Y., assignor to j. J.

Krehbiel, New York, N. Y.

Application April 8 1932, serial No. 603,981 iolaim. (01.139-37) This invention relates to the use of flat wires disposed in the direction'of the warp in the manufacture of pile goods. More particularly such wires are here used for gaging the distance to 5 which the pile extends from the ground web and for supporting the pile loops. 7

Wires have been previously employed in the "manufacture of bile fabric, which were inserted iii the direction of the weft, either simultaneously it) with the weft or alterhatingly with the weft, as the weave construction may require. Looms used for this purpose have a special mechanism for inserting such wires in the directionof the weft and are therefore called wire looms. The pile if: was formed by looping warp threads around'the wires in a sequence as required by the weave construetion. e

- The insertion of such wires in the direction of "the weft through the shed can only take place gradually and slowly, which fact considerably reduces production on the said wire looms.

This invention relates to a new method of employing wires for the purpose of creating fabrics similar to those produced by wire looms. Contrary to the arrangement of the wires in the wire loom, which areinserted in the-direction of the weft, this invention provides for wires which are arranged stationarily in the woven fabric in the direction of the warp, and which extend from the fell of the fabric over several repeats toward the take-up. They are exchangeable, (allowing va- Irlat'ioiis in height andlength) according to the tension appliedto the threads which areengaged upon said wires, and according to the character- 35 istie'sof said threads, i. e., in accordance with the j duality and density of the fabric, said wires are suitably made longer or shorter.

These stationary wires carrya pile support weft inserted above them, the weft being supported 40' Liam enough to support in turnthe pile forming threads. In other words, the pile weft resting on the stationary wires serves the same purpose asthe weft-wise inserted wire of the wire loom.

s51 ehaiigiiig the height of these stationary wires, 45 the height of the pile can be controlled much more readily than by the wires of the wire loom;

because the wire of a wire loom is limited to the size of the shed into which it is inserted, while the stationary wires or gages used in this inven- 50 tion are not limited in that respect.

The stationary wires of my invention must be constructed so that a part thereof can be raised and lowered around a joint laying in the fell of the fabric, in order to permit the formation of a 5 shed for the purpose of inserting various wefts.

For this purpose a stationary section of the wires mentioned above is hi'ngedly or flexibly connected with another wire which may be raised or lowered as the shed may require. This swinging wire section or link serves at the same time for keeping 5 the stationary wires in place so that they move neither to the front nor back of the fell of the fabric. v

In raisingand lowering the other wire section or link for the purpose of forming the shed, the 10 end thereof must be swung in a circle around the point at which it is joined, hinged, linked or otherwise connected with the stationary part of the wire.

This invention has therefore the object of providing for a circular motion of the end of the movable wire or link while it retains the gage in a stationary positiomand means are provided for supporting and actuating the link accordingly.

It is also clear that the more the shed wire,

link or movable wire is moved up or down from a horizontal position, the larger will the longitudinal clearance space reqiiired for its swinging', free end. Inasmuch as that space must be provided for additionally to the harness space, it should be limited to a minimum. This invention therefore provides for a shedding motion which places the center of the shed in a horizontal line with the stationary wire section, so

that the shed wire, when'ashed is formed, travels like distances up or down from "said center which are largerbr sinaller'as the type of the fabric and ,the siae of the shuttle may require.

ing, in which:

V Fig. 1 -shows, in a longitudinal sec ion, part bf a. loom to which my invention is applied. Fig. 2 shows the corresponding loom parts in 4o aparallel perspective view, illustratihg a'm'odification r my invention.

Fig. 3 illustrates, in a parallel "perspective detail view, the exchangeability or the stationary wire or gage.

Fig. 4 shows a similar detail view of the heddle which retains said gage.

Fig. 5 illustrates, by a longitudinal cross-section, another modification of this invention.

Similar numerals refer to similar parts 5 throughout the various, views:

The finished pile goods I I travel to the left over a support l2 in Fig. 1. The pile loops M are supported by the wefts I 3 of the upper filling, whereas the body of the weave I5 is spaced therebelow. 5

Upon the lower filling or ground web l5 rest the stationary wires l6, which hereinafter will be referred to as the gages. The gages support the wefts l3 of the upper filling which slide off the gages when the goods travel to the left. The gages I6 are rotatably swingable around the end of movable wires H which hereinafter will be referred to as the links. These links also circumscribe the shed during their movements, in which travels the shuttle l8 in front of a reed IS. The links I1 extend through the reed |9 and are engaged upon vertical wires 20 which will hereinafter be referred to as heddles. The heddles are mounted in the customary manner in avertical- 1y (arrow 2|) reciprocating heddle frame.

The links l! are attached to the heddles 20 in the following manner. The heddle 20 consists of two blades 22 and 23 (Fig. 4) which are spacedly connected by a rivet 24. The space allowed be:

tween the blades 22 and 23 by means of the rivet 24 allows free'movement of the link 25, the rivet 24 extending through a longitudinal slot 23 at the the reciprocations of the heddle 2 l. The shed is arranged substantially centrally between the extreme positions of the link H in its up and down ;movements. The lowest position of the link is indicated-by the numeral its center position by Ila and its highest position by MD. The slot 26 is of such length, that it allows free movement along said slot during the reciprocation of the heddle 2|. In the extreme up and down positions I! and Ill) of the link, the rivet slides into the extreme corner of said slot 23. The gage I6 is however not stationarily supported, but rests upon the slowly moving goods. Therefore it will slowly travel to the left, unless the extreme corner of the slot 26 in link I1 is engaged by rivet 24 whenever the link reaches its highest and lowest position, so that the gage I6 is slightly pulled to the right to whatever extent it has moved to the left by travelling with the moving goods Thus the gage is pulled out of the goods, which slide from the gage at the left. The warps 4 I, 42 and ,43 form the shed together with the links,

. completing the exemplary showing of a fabric.

Fig.2 shows gages I6 and heddles 20, similar to those of Fig. 1, and shows theheddles to be differs from -the link I! of Fig. l by not having any slot 26. It is rotatably hinged at its free end upon the rivet 24 connecting the blades to the heddle 20. In an arrangement of this kind, the gage l6 would of course be pulled back and forth in a horizontal direction while the heddle frame moves up and down.

the proper forming of a shed; they are avoided Such movements of the gage l6 would interfere with the weaving'and by oscillating the heddle frame, i. e. by moving the heddle frame along a curve so that the gage [6 remains stationary and the link 3| swings around the point at which it is hinged upon said ease.

The movement of the heddle along a curved path is brought about in the following manner: Two brackets 32 and 33 extend from the stationary frame of the loom. Two brackets 34 and 35 are mounted upon the cross members of the heddle frame 28. The stationary brackets 32 and 33 and the brackets 34 and 35 are connected to each other, respectively, by connecting rods 36 and 31, the length between the centers of which corresponds to the distance between the points at which the link 3| is hinged upon the gage Hi, and the heddleZD. The connecting rods 36 and 31 are disposed substantially parallel to the links 3|. The heddle frame 28 will therefore swing through a curve-while being pulled up and down by cords 29, so that the rivet 24 swings in a circle around the end of gage It, at which the link 3| is fastened thereupon.

The heddle frame may also be caused to move in such a manner that the link 3| swings around the end of gage l6, by an arrangement like that shown in Fig. 5. Here a pin 38 extends from the end of the frame 28 and is guided by a groove 39, in a bracket 40 mounted on the loom (not shown). There is also the difference between this arrangement and that of Fig. 2, that the upper end of the frame moves along a vertical path, the groove 39 being curved more than the path along which swings the rivet 24 around the end of gage I6, so

that the rivet 24 follows the desired path around the end of the stationary gage Hi.

The principle of Fig. 2 in which both theends of the heddle frame are guided may of course also be applied to the pin and groove arrangement of Fig. 5, and vice versa.

While I have shown and described my invention with some degree of particularity, it will be realized that other modifications and changes may be resorted to under special conditions. I therefore do not wish to be limited and restricted to the exact details shown and described, but reserve the right to make such'changes and modifications as may fairly fall within the scope of the subject matter being claimed.

What I claim is:-

' In combination with a loom weaving a fabric with superimposed pile-supporting wefts, longitudinally disposed gages spacing said fabric and said Weft s apart, a frame, shed-forming links con- 7 necting' said gages to said frame, a mechanism raising and lowering said frame, and a lever parare around the point and fulcrum at which the links are connected to said gages'and which-is thus renderedstationary relatively to the loom.

JOHN KREHBIELJ.

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