US1095417A - Apparatus for weaving fabrics. - Google Patents

Description

E. PREIN.

APPARATUS FOR WEAVING FABRICS.

APPLICATION FILED JAN.3,1914.

1,095, 11 7. Patented May 5, 1914,

0 H b 0 L o F O V K 9 l H a b n. L

J [1/ y :4 I

fiz'mms-eas: Jaynfar 6 Jwz M Aliarnegy COLUMBIA PLANOORAPH c0.. WASHINGTON. D. c.

UNITED STATE$ FATENT @FFECE.

EIVIIL PREIN, OF HANOVER, GERMANY, ASSIGNOR TO PREIN-GEWEBE AC'IIEN- G-ESELLSCHAFT, OF HANOVER-LINDEN, GERMANY.

APPARATUS FOR WEAVING FABRICS.

T0 aZZ whom it may concern:

Be it known that I, EMIL PREIN, subject of the King of Prussia, and resident at Hanover, in the Province of Hanover, Kingdom of Prussia, German Empire, have invented a certain new and useful Apparatus for Viewing 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-anddown motion of the reed blade, and also with the filam'ents 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 project 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 dis covered 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 unicellular cotton filaments brittle. It is a great Specification of Letters Patent.

Application filed January 3, 1914.

Patented May 5, 1914. Serial No. 810,188.

drawback moreover that the bent and folded interwoven fibers are held in the fabric with their power of projection unweakened. If 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 their 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 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 flat 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 an elevation of the apparatus in combination with the adjacent parts of the loom and shows the device in the position after the application of the moistening body and during the moistening. Fig. 2, shows the frame of the moistening body and the mechanism for moving it just before the application of the moistening body.

In these figures, a indicates the lay sword b the lay, 0 the reed, cl the breast plate of the loom. The warp threads are indicated by a and the finished fabric by 0.

The inoistening body composed of spongy rubber or the like rests in a long liquid cont ainer 6 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 b and swings with it to and fro. By the arrangement of the moistening body on the aforesaid part .7) there is effected a specially favorable stroking action and the possibility of the easy rangement of the separate parts of the movement is assured. The moving and guidance of the moistcning body and its holder is effected by means of suitable rods and levers under influence of the motion of the part b. At one end of the container is a tubular support f to which by means of a tube the apparatus can be connected to a filling receptacle.

In the constructional form illustrated in Figs. 1 and 2 the container 6 is detachably secured to a bar g, which possesses projections it near each end, with which projections two pivoted levers J engage, whereby the bar is connected to the loom. F01; effecting this connection there are provided on each side under the part Z) projecting lugs m. At both ends of the container 6 are provided vertical guide bars or ridges 11 which slide in hookshaped holders H, attached to the part Z). The actuation of the liquid container 6 is effected by means of a catch lever q and an adjustable boss r. Underneath the part b; is supported a shaft IV passing throughout the length of the loom, which shaft is turned to a small degree by means of the catch 9 on contact with the boss 7. In consequenceof this turning, the shaft raises the arms J fixed upon it at each side, which arms support the liquid container 6. The catch q is placed in the middle of the shaft and can only turn it in one direction while on the back stroke it acts loosely and slides over the boss 0". A spring F secured upon the shaft draws the moistening body at the end of its working stroke back again from the threads. The boss 7* is placed adjustably upon a fixed holder and is so arranged that the moistening body engages the lower plane of the warp substantially at the fell. According to the length of the adjustable boss 1' the period of contact can be adjusted at will. As soon as the catch 9 has passed over the boss r it slides off it and allows the limb I together with the bar 9 and the liquid container 0 with the moisteninp; body to fall down. In order to hasten this rearward motion there is provided the spring F.

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

In apparatus of the character described, a loom frame, a, moistener container, a boss adjustably fixed on said frame, a catch lever mounted on the lay and adapted to move over said boss, a projection on said lever, an arm pivoted on said lever and engaged by said projection when the catch lever is engaged by the boss on the rearward movement of the lay, said arm being pivotally connected to said container, vertical guide bars on said container and hook-shaped holders on the lay, in which said guide bars move.

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

EMIL PREIN.

Witnesses T. HENRY RELOK, PAUL Enwsrnve.

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

Washington, D. 0.

Images