US1098756A - Apparatus for weaving fabrics. - Google Patents

Description

B. PREIN.

APPARATUS FOR WBAVING FABRICS.

APPLICATION FILED JAN. 3, 1914.

1,098,756, Patented June 2, 1914.

\JULU-UIA PLAYUGRAPH co.. WASHINGTON. [L c,

UNITED STATES PATENT OFFICE.

EMIL PREIN, OF HANOVER, GERMANY, ASSIGNOIB- 'IO PREIN-GEWEBE ACTIEN- G-ESELLSCHAFT, OF HANOVER-LINDEN, GERMANY, A FIRM APPARATUS FOR WEAVING FABRICS.

Application filed January 3, 1914.

To all vo /1.0m. it may concern Be it known that 1, Farm PREIN, subject of the King of Prussia. and resident at l'lanover, in the Province of Hanover, Kingdom of Prussia, .irerman Empire, have invented a certain new and useful i-Lpparatus tlor eavingof liabrics, 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 knowm 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 triction ot the filaments during; the forming; of the shed and in conseqi'icnce of the up and-down motion of the reed blades, and also with the filan'ienls oi the weft yarn in consequence of the si'iddenly occurring cessation of the adhesion of the filaments duril'lp; the shootingand rapid winning; out of the yarn and also in consequence of the attraction between the material which is run ning out and that which remains behind. A. portion Oili these filaments which are set tree 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 re moved 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 project and the forcible removal of the projecting;- filaments have also very serious drawbacks. The objec tion to the shearing 'is that the very sharp knives operating at a great speed not only shear oil 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 unicellu- Specifieation of Letters Patent.

Patented Jun e 2, 191.4.

sci-m1 No. 810,190.

lar cotton filaments brittle. It is a great drawback moreover that the bent and fdlded interwoven fibers are held in the fabric with their power of projection unweakened. Ii

. then at a later stage, the fabric is treated for some technical purpose, these filaments always again occur as points escaping out of the fabric, because power of projection 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 efi ected 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 or. this meclulnism, 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 moistcning body, a rubber sponge is preferably made use of.

The invention comprises an arrangement, whereby the support for the moistcnin; 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.

Tn the accompanying drawing one of these forms illustrated as tllows:-Figure 1 shows a vertical section through the part of the loom in question, together with the moistening device.

The drawing shows the frame of the moistening body and the mechanism for moving it, when the lay is in its rear posi tion. Fig. :2 shows a transverse section through the liquid container looking toward.

the support of the moistening body. Fig. 3 shows a transverse section through the moistening apparatus on an enlarged scale.

In these figures (4 indicates the lay sword, I) the lay, 0 the reed, (Z the breast plate of the loom. The warp threads are indicated by a and the finished fabric by 0.

In contradistinction from other arrangements in this invention the liquid container 6 is not made to move up and down with regard to the part 6 but is fixed to it, and only the moistening body proper contained in the receptacle together with its holder in the outer receptacle is to be moved down and it dips more or less deeply into the liquid con tained in the outer receptacle. The guidance of the dipping part can be effected for instance by means of levers and rods under the influence of an eccentric or a cam disk or a guiding slide or the like. The holder in the shape of a vessel carrying the 1noistening body is provided with perforated walls so that the liquid can penetrate into the moistening body. The supply of the liquid is effected by means of a flexible tube passing from a reservoir.

The moistening body S rests in a receptacle 1 perforated throughout its entire length, which receptacle is preferably provided at the bottom with a strengthening rib 2 for the purpose of giving the necessary rigidity. The holder Z is moved up and down in the outer receptacle 6 which incloses it on all sides, and which possesses above only a long slot for the passage of the moistening body S. For the better guidance of the holder Z in the receptacle 6 there are provided at the upper edges of the holder on each side reinforced bars 3 which have cavities 4 for the passage of the liquid when the holder is dipped in. These cavities are illustrated in Fig. 2 in elevation, in Fig. 3 in cross sect-ion. In the raised position the bars 3 are resting against the recurved edges 5 of the receptacle 6, which serve as closing bars for the cut out bars 3. During the application of the bars 3 to the bars 5 no liquid can escape through the openings l outward. The motion of the moistening body and of its holder Z is effected by rods 6 placed at both ends, which either pass through openings in the bottom of 6 made watertight, or as shown in the drawing can be caused to descend from above over the edge of e, to the holder Z. The rods 6 are moreover preferably also held by holders 7 which are fixed to the part b. The motion of the bars 8 can be effected by any desired means from the loom. The simplest method of arranging the motion is by means of two sliding guides 8 at each side of the loom, in which rollers 9 fastened to the ends of the bars are guided. The guides 8 can according to the construction of the loom be placed on some suitable fixed part thereof. The sup ply of fresh liquid to the receptacle 6 is effected through an opening 10, which is connected by a flexible tube with the container placed outside.

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

1. Apparatus for the production of fabrics in which the warp threads are kept smooth at the weaving point, comprising a liquid container secured to the lay and having recurved edges at its top a moistening body holder in said container having lateral projections adapted to engage against the under side of said recurved edges and provided with apertures and means to reciprocate said holder vertically in said container, as specified.

2. Apparatus for the production of fabrics in which the warp threads are kept smooth at the weaving point, comprising a liquid container secured to the lay and having recurved edges at its top, a moistening body holder in said container having lateral projections adapted to engage against the under side of said recurved edges and provided with apertures, a rod having a guide roller on its lower end and extending upward and being bent over is secured to said holder to vertically reciprocate said holder in the container, as herein set forth.

In testimony, whereof I have signed my name to this specification in the presence of two subscril'iing witnesses.

EMIL PREIN.

lVitnesses T. HENRY REED, PAUL ERNSTING.

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

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