US769851A - Loom for tufted or pile fabrics. - Google Patents

Description

No. 769,851. PATENTED SEPT. 13, 1904. O. VORWERK. LOOM FOR TUFTED OR PILE FABRICS.

APPLICATION FILED OCT. 3, 1903.

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' IINTTET) STATES Patented September 13, 1904.

PATENT Orricn.

LOONI FOR TUFTED OR PILE FABRICS.

SPECIFICATION forming part of Letters Patent No. 769,851, dated September 13, 1904;,

Application filed October 3, 1903.

To all whom it nuty concern.-

Be it known that I, CARL VORWERK, a subject of the German Emperor, residing at Barmen, in the Rhine Province, Prussia, Ger many, have invented certain new and useful Improvements in Looms for Tufted or Pile Fabrics, of which the following is a specification accompanied by drawings.

This invention relates particularly to looms for weaving J acquard-Axminster carpets; and

the object of the invention is to improve upon the construction and operation of such looms and improve the appearance of the fabric.

Further objects of the invention will hereinafter appear; and to these ends the invention consists of apparatus for carrying out the above objects embodying the features of construction, combinations of elements, and arrangement of parts having the general mode of operation substantially as hereinafter fully described and claimed in this specification and shown in the accompanying drawings, in which- Figure 1 is an end elevation of a portion of the loom from the rear, showing the reeds and warp-threads in the spaces of the tablecomb, which is shown broken away at each side. Fig. 2 is a side elevation of the portion of the loom shown in Fig. 1, partly in section. Fig. 3 is a plan view showing the central portion ofthe table-comb with the reeds and Fig. A is a sectional front elewarp-threads. vation showing three carpet breadths oined which have been woven by means of a tablecomb having the recesses completely sym the pile is formed of tufts which are severed from the pile-yarns in jacquard-controlled carriers and brought down by grippers or nippers resembling a gooseneck and beak to a table-comb supporting the fell of the cloth and guiding the warp-threads. Then the tufts perfect in certain respects.

Serial No. 175,546. (No model.)

are looped around the weft and bound into the cloth when the weft is beaten up by the lay.

The table-comb heretofore employed is im- Sufficient room has not been provided between the teeth of the comb to accommodate both the warpthreads and the reeds, so that the threads are crushed and weakened, and it is consequently difiicult to raise the tufts steadily and uniformly without further means. In order to obviate these disadvantages, the comb is con structed in accordance with this invention as hereinafter to be described.

Referring to the drawings, A represents the comb; B, the lay; C, the reeds. The warp threads E are represented passing through the apertures of the reeds (1. As shown in the drawings, the reeds C are adapted to enter between the teeth F of the comb. The tuftsGr are shown in Fig. 2 on the table-comb A looped into the fabric.

According to this invention the teeth F of the table-comb A, Figs. 1, 2, and 3, are each provided at one side with recesses H, so' arranged and of such shape and width that the warp-threads E are provided with sufficient room to lie therein, while at the same time protection is afforded from the crushing action of the reeds C when the lay is beating up the weft. Thus the warp-threads E are kept from being damaged, and the tufts G are turned up around the weft without further means into the vertical position,in which they are maintained by the projections'I on the teeth of the comb until they are secured by a further shoot of weft. It is, however, necessary to symmetrically dispose the recesses H in the teeth, so if the teeth F at the left half of the comb are provided with the recesses H, say, on the right side, as at K, Fig. 3, the teeth on the other half of the comb are provided with recesses at the left side, as at J, facing toward those on the teeth at the left half of the comb, for if this symmetrical arrangement of the recesses H is not provided the goods would turn out somewhat conical, one edge becoming larger than the other, so that the sewing of two breadths would be diflicult or nearly impossible; but according to the arrangement described of complete symmetry of the disposition of the recesses H the pile L, Fig. 4, reflects the light somewhat differently in the left and right halves,which is an inconvenience in all cases of weaving piece goods intended to be sewed breadth by breadth together, for just at the joined sel- Vages a change of the reflection of light takes place, whereby the seams become more distinctly defined, as illustrated in Fig. 4:, showing three breadths sewed together. In order to prevent this reflection of light, whereby the seams become more sharply defined, I change the position of the line where the reflection changes from the selvage to a place in the fabric somewhat distant from the selvage, and for this reason and in order to accomplish this end I do not dispose all of the recesses H in one half of the comb opposite to those in the other half of the comb, but only up to a few recesses next to the selvage, which I arrange at the same side as those in the first half. This arrangement is illustrated in Fig. 5. The table-comb is provided with the recesses H at the right side of the teeth for the portions 0 and P of the comb, while in the remaining intermediate portion Q, of the comb they are at the left-hand side of the teeth. In consequence thereof the pile of part P, Fig. 6, near the right selvage will show the same inclination as the pile of part 0, so that if such fabrics are sewed breadth by breadth together there will be no contrast in the pile at the joined selvages; but these will be covered level] y and be almost invisible. Obviously some features of this invention may be used without others, and the invention may be embodied in widely-varying forms.

Therefore, without limiting the invention to the construction shown and described nor enumerating equivalents, I claim, and desire to obtain by Letters Patent, the following:

1. A table-comb,having teeth provided with recesses of such shape, width and position that sufficient space is afforded therein for the warp-threads when the reeds enter the comb, and of such disposition that the teeth of one half of the comb and a few teeth next to the end of the other half have the recesses at the same side, while the intervening teeth are provided with recesses at the opposite side of the teeth, for substantially the purposes set forth.

2. A table-comb,having teeth provided with recesses of such shape, width and position that space is aflorded therein for the warp-threads when the reeds enter the comb, for substantially the purposes set forth.

3. A tablecomb,having teeth provided with projections at the upper side and recesses at the sides of the teeth, for substantially the purposes set forth.

4. A tablecomb,having teeth provided with projections at the upper side and with recesses at the sides ofthe teeth, these recesses being all at one side of the teeth on one half of the comb, and on the other half of the comb all at the other side of the teeth, for substantially the purposes set forth.

5. A table-comb, having teeth provided with upward projections and recesses in the sides of the teeth, said recesses being so disposed that the teeth on one half of the comb and a few teeth at the end of the other half have the recesses on the same side of the teeth, the intervening teeth being provided with recesses at the opposite side of the teeth, for substan tially the purposes set forth.

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

CARL VORWERK.

Witnesses:

OTTO KoNIe, J. A. RITTERsHAUs.

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