US1098755A - Apparatus for weaving fabrics. - Google Patents

Description

E. PREIN. APPARATUS FOR. WEAVING FABRICS. APPLICATION FILED JA1-I.3, 1914,

1 09 755 Patented June 2, 1914.

2 SHEETS-SHBET 1.

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E. PREIN.

APPARATUS FOR WEAVING FABRICS.

APPLICATION FILED JAN. 3, 1914.

Patented June 2, 1914.

2 SHEETS-SHEET 2.

ED STATES PATENT OFFICE.

Ell/LIL PREIN, OF HANOVER, GERMANY, ASSIG-N'OR TO PBEINGEVEBE ACTIEN- GESELLSGHAET, 0F HANOVER-LINDEN, GERMANY, A FIRM.

APPAEATUQ FOR W'EAVING FABRICS.

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Specification of Letters Patent.

Patented June 2, 1914.

Application filed January 3, 1914. Serial No. 810,189.

To aZZ whom it may concern Be it known that I, EMIL PREIN, subject of the King of Prussia, and resident of Hanover, in the Province of Hanover, Kingdom of Prussia, German Empire, have invented certain new and useful Apparatus for Weaving of Fabrics, of which the following is a specification.

This invention relates to apparatus for the weaving of fabrics, in which the filaments all lie close to the yarn. During the process of weaving, there are always filaments which spread out from the yarn, as is well known, even when they have been previously prepared, or when the weaving takes place in the moist state, and this especially happens with the filaments of the warp yarn in consequence of the mutual friction of the filaments during the forming of the shed and in consequence of the up-and-down motion of the reed blades, and also with the filaments of the weft yarn in consequence of the suddenly occurring cessation of the adhesion of the filaments during the shooting and rapid running out of the yarn and also in consequence of the attraction between the material which is running out and that which remains behind. A portion of these filaments which are set free are bent, folded over and pressed down in the fabric by the motion of the reed during the throwing of the weft thread and owing to the threads lying over it in the interweaving. The filaments which still project from the fabric are subsequently removed by shearing and singeing machines in order to render the fabric suitable for its various purposes. But by this process not only are a number of filaments which possess a great power of resistance to breakage, lost for the fabric, but the interweaving of the filaments which pro j ect and the forcible removal of the projecting filaments have also very serious drawbacks. The objection to the shearing is that the very sharp knives operating at a great speed not only shear off the projecting filaments but also, any knots and threads which stick out and cut them clean away which is at first not noticed as damage and is only discovered on the application of tests for strength, whereupon one and the same fabric will give uneven results. With the singeing process, the repeated sudden heat makes all the woven filaments especially the uni cellular cotton filaments brittle. It is a great drawback moreover that the bent and folded interwoven fibers are held in the fab ric with their power of projection unwealc ened. If then at a later stage, the fabric is treated for some technical purpose, these filaments always again occur as points escap' ing out of the fabric, because their power of pro ection and the adhesive power of the preparation act against each other. Also, when the bent fibers are held during the drying under mechanical pressure, which as is well known is effected in various manners in technical weaving according to the application of the goods, they lie only restrained but not cured. They hereafter also gradually free themselves from the bedding by reason of the various movements of the material, the alternative effects of temperature and of unequal wear, whereby much damage is caused.

The object of the present invention is a mechanism, which is intended to obviate the above mentioned drawbacks. By means of this mechanism, the warp threads are smoothed fiat immediately at the weaving point by a suitable means in the moist condition in such a way, that the projecting fibers are arranged lengthwise against the threads, and are woven into the fabric in this position. Moreover, it is of especial importance that the application of the fibers to the yarn should take place just there and at that moment when forces tending to release the fibers can no longer act upon the threads. As a suitable material for the moistening body, a rubber sponge is preferably .made use of.

The invention comprises an arrangement, whereby the support for the moistening body is attached to the loom lay so as to be capable of moving up and down and participate in its to-and-fro motion.

The device itself can be constructed in various forms. In the accompanying drawing one of these forms is illustrated as follows Figure 1 shows a constructional form of the device with actuation of the moistening body. Fig. 2 shows a vertical section of the moistening mechanism on a larger scale. Fig. 8, is a side elevation of the same partly broken away and partly in section. Fig. l, is a detail view showing a part of the con tainer and its guide.

In these figures a indicates the lay sword, I

Z) the lay, 0 the reed. The warp threads are indicated by a and the finished fabric by 0.

The moistening body composed of spongy rubber or the like rests in a long liquid container e which extends over the entire width of the fabric and is provided at the top with a slot through which the moistening body projects. The liquid container 6 is removably attached to the part Z) and swings with it to and fro. By the arrangement of the moistening body on the aforesaid part b there is effected a specially favorable stroking action and the possibility of the easy arrangement of the separate parts of the moistening body and its holder is effected by means of suitable rods and levers under the influence of the motion of the part Z). In order to secure the desired effect of the moistening body as completely as possible, the manner of its guidance is of essential importance. Moreover, especial attention must be paid to the construction of the support of the moistening body and the arrangement for keeping the body moist as well as for the removal of the excess of moisture. In this effect, the further modifications possess various advantages over those already described.

In Fig. 1 there is illustrated by means of a vertical section through the loom and the moistening device, the position of the various parts at the moment in which the moistening body on the way to the fabric has completed its operation and is about to be drawn back from the Weaving point. The moistening body S of spongy rubber or the like rests in a liquid container 6 extending over the entire width of the weaving, which container in this construction is so secured to the part b that it can be moved up and down in vertical guides D (see Figs. 3 and 4). In order that the moistening apparatus should work as free from jerks as possible there is arranged at a suitable point of the loom, for instance on the lower shaft K a cam disk M, the cam groove N of which controls by means of a rod leading to the moistening apparatus the motion of the said apparatus exactly in the required direction and completely free from jerks. The transmission of the motion is efl'ected in the construction illustrated by means of a rod B which bears on its end a roller E engaging in the cam track N. The rod B is moreover so guided at this end, that its axis in every position intersects the axis of rotation of the cam disk and the middle of the shaft K. This is for instance effected by forking the rod and guidance of the fork G on the shaft K. The motion of the rod B is transmitted by the angle lever A to the lever rod 0 engaging the spongy rubber holder, the height of rod 0 is adjustable by means of a screw threaded piece on the angle lever A.

For the uniform guidance of the spongy rubber holder throughout its whole length there is provided at both sides of the loom a rod 0. The shaft P of the angle lever A passes through the loom underneath, so that only one cam disk and only one rod B are necessary.

The moistening box S rests in a long iron box Q (Figs. 2 to 4) both side walls of which can be folded down upon a hinge R underneath. At the upper edge, the walls of the box are curved inward so that only a narrow slot remains open for the exit of the rubber sponge S. In Fig. 2 the moistening body S is shown dotted. In this construction it consists of two adjoining strips of rubber sponge between which in the upper part of the container is placed a tube T for the supply of the liquid. This liquid passes through fine perforations sloping upward in the two halves of the spongy rubber. The amount of the liquid supply can be regulated by a feed pump which is placed at a convenient point within the moistening apparatus and is connected by a flexible tube with the pipe T. The two opening longitudinal walls of the sponge holder Q are provided with vertical impressed ribs U which serve both for stiffening purposes and also in order better to hold fast the strips of rubber and finally also for the more convenient removal of the excess water in the larger outer container 6 which surrounds the sponge holder. This latter is U-shaped in section and closed at both ends. It is constructed considerably stronger and more rigid than the inner sponge holder because it serves for the transmission of the motion of the rods for the cam disk. At the upper opened edges, the ribs of the container are bent a little outward whereby at both sides of the moistening body longitudinal channels V are provided for the reception of the excess of water flowing from the moistening body. From these channels the water can flow away between the vertical ribs II of the sponge holder Q so that it collects at the bottom of the container 0. From this point it is brought back from one end through a perforation W by means of a flexible tube connected to the collecting receptacle of the pump and is then again delivered to the feed pipe T. In order to keep the pipe T in the sponge holder Q at the same height throughout its entire length there are provided at the necessary intervals apart supports X.

For the guidance of the moistening apparatus 0 in the holders D there are provided lugs Y at both ends. For the connection of the rods 0 to the container 6 there are provided at both sides lugs Z provided with holes. Instead of the cam disk M, an ordinary eccentric might also be used for the exact guidance of the moistening body is of less importance.

Having now particularly described my invention and in What manner the same is to be used What I claim and desire to secure, is:

1. ln apparatus for the production of fabrics, means to keep the Warp thread smooth at the Weaving point comprising a holder for the moistening body attached to the lay, and vertically movable on guides, a rock shaft, a moisture holding container, a rod pivoted at its upper end to said container and adjustably connected to an arm keyed on said rock shaft, a substantially vertical arm. keyed to said rock shaft, a rod pivoted to said vertical arm and having a terminal loop engaging on a shaft K, and carrying a roller traveling in a cam track, for the purpose specified.

2. ln apparatus for the production of fabrics, a moistening container, moistening material contained in said container, a perforated tube extending longitudinally and surrounded by said material, lateral lugs on said container, guides engaging on said lugs, and means to vertically reciprocate said container, as described.

3. In apparatus for the production of fabrics, a moistener, moistening material therein, a tube having lateral perforations therein, and surrounded by said material, a drainer in the lower part of said container, lugs on said container, guides engaging said lugs and means to vertically reciprocate said container as described.

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

EMIL PREIN.

Witnesses:

T. HENRY REED, PAUL ERNs'rING.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, I). C.

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