US609489A - Gael friedrich wurmbach - Google Patents

Description

No. 609,489. Patented Aug. 23, |898. C. F. WUBMBACH. DISINTEGRATING MACHINE FOR GLUE PIECES.

(Application led Apr. 19, 1895. Renewed Mar. 14, 1898.) ,(No Model.)v

UNITED STATES PATENT OFFICE..

cARL FRIEDRICH wURuRAcI-I, or MsEN, GERMANY.

DlslNTi-:GRATINe-MACHINE Foa GLUE PlEoEs.

'SPECIFICATION formingpart of Letters atent No. 609,489, dated August 23, 1898. Application filed April 19, 1895. Renewed March 14, 1898. Serial No. 673,865. (No model.)

To all whom,` t may concern:

Be it known that I, CARL FRIEDRICH WURMBAOH, manufacturer, of Miisen, near Dahlbruch, in the Kingdom ofPrussia, German Empire, have invented new and useful Improvements in Disintegrating-llrlachines 1 for Glue Pieces and the Like, (for which I have obtained patents in Germany, No. 81,690, dated June l5, 189,5; in Austria, No. /212, dated January 17, 1895; in France, No. 242,894, dated March 5, 1895, and in Great Britain, No. 22,684, dated November 22, 1894,)

of which the following is a specification.

My invention relates to improvementsin disintegrating-machines for glue pieces andl the like, and has for its object a disintegrating machine or devil for the glue pieces which constitute the raw materialfor the manufacture of size. This raw material consists of skin-parings, refuse, or waste, but not that proceeding from the tanned parts of the said skin, which parings, ne., when wet are very tender and elastic and ofvarying thicknesses.

In order to obtain as good and as uniform and more valuable size.

According to the processes hitherto used, whereby uneven and dissimilar glue pieces and the like constituted the raw material treated, it was not possible to obtain a regu- -lar and uniform treatment, and the resulting edy all these defects and to obtain the tech- ,upon an axis b and fixed thereon by means of va boss c and screw and nut c. The formation of the teeth is the characteristic feature of this drum a. These teeth are all obliquely sharpened and are made alter- 'nately straight and crossed toward the right,

then `crossed to the left in order to become straight again, and so on. slantly sharpened from points and cutting edges, the latter following alternately two on the same side. Two right-slant edges alterso on. The drum a is set in rotation by a pulley q and is driven at a comparatively high speed.` This disintegrating-drum d is surrounded over a quarter of its periphery or thereabout with a casing d'. The material supplied by the feeding-hopper m passes between the drum d and its casing d and is therein disintegrated or torn into fibers. For this purpose the casing is provided with teeth on its inner periphery, Fig. 3, in which three recesses e e e alternate with four toothed surfaces. Two central surfaces f f are provided with angular teeth, while the two remaining toothed surfaces y have parallel teeth, and this arrangement of alternate recesses and parallel and angular teeth has a very great importance on the technical effect to he obtained therefrom, the angular teeth ff serving to push the glue pieces toward the center. This The teeth are- -nate likewise with two left-slant edges, and

drum ct may be brought more or less into close proximity to the casing d bymeans ofscrews g and hand-wheels 77 and when the diameter of the saw-bands becomes smaller by wear the casingV d can be moved forward by a pressure-screw fi, this casing being movable upon the axis k.

gratin g-drum a.

The upper part of the casing has the form of a pocket Z, the peculiar form of which is of importance on the result sought for. In this pocket turns a fluted roller m, which is arranged in such a manner that between the same and the pocket is formed a gap or cleft, becoming narrower toward the drum a. This iiuted roller m has for its object to convey axis n of the fluted rollers m is movable and y is pressed by weights placed on levers r against the pocket Z. This pressure can be released by a hand-wheel s and can be regulated by a ratchet-wheel Z so as to be applied wherever required. Material of different size can pass between the fluted roller m and the pocket Z. Motion is imparted by means of two pairs of bevel-wheels and by shafts o and u, driven by pulleys i: o. The pocket receives the material from a grinding-roller p with a rough surface. This roller is adjustable vertically, is rotated by the iluted roller m, and has for its object to seize the glue pieces dropping from the feeding-hopper to vdistribute the same, and to convey them to the entrance to the said pocket Z. At the same time this roller p presses the raw material against the fluted roller m and acts thus simultaneously as conveyer and distributer, while preventing stoppages at the entrance to the pocket resulting from an undue pressure of the raw material against the iluted roller.

This machine operates as follows: The glue pieces are thrown as regularly as possible into the feeding-hopper whence they reach the grinding-roller p, which distributes them uniformly and conveys them to the entrance of the pocket Z, where they are seized by the iluted roller m and passed on to the disinte- The teeth from the latter tear off' fibers from the glue pieces while the same are firmly held by the uted roller m. The shape of the teeth causes the pointed parts athereof to enter first the pieces of the skin,

while the lateral edges cut oif the fibers. The y pieces remaining after this treatment are further operated upon in the space between the drum a, and its kcasing CZ, the teeth of the casing holding thepieces' while the saw-teeth carry on their tearing action; but if the teeth were uniform over the whole of the inner periphery of the casing the glue pieces would be forced through the saw-teeth and pass untouched through the drum. It is for this reason that the recesses have been designed, in which recesses the pieces are thrown or slung through by reason of the great power developed by the centrifugal force. The angular-formed teeth `of the central part of the casing guide and collect the glue pieces toward the axis of the 1 machine. i

As my improvements are capable of some modification without departing-from the prineiple thereof, I do not restrict myself to the precise form and place-ment of the several parts thereof.

Having now 'described my invention, what I claim, and desire to secure by Letters Patent, is

l. In a machine for disintegrating glue pieces for themanufacture of size, the combination of an adjustable curved ca sing, with a yieldingly-supported iiuted roller, and a conveying and distributing roller, substantially asdescribed.

2. In a machine for disintegrating glue pieces for the manufacture of size, the combination of an adjustable curved casing the upper part of which has the form of a pocket, with a yieldingly-supported fluted roller turning in said pocket, and a conveying and distributing roller with a rough surface, substantially as specified.

3. In a machine for disintegrating glue ,pieces for the manufacture of size, the combination of an adjustable drum formed of crossed saw-bands, with an adjustable curved casing provided with alternated recesses and parallel and angular teeth, and a fluted roller connected with an adjustable Weight-lever, substantially as set forth.

In witness whereof I have hereunto signed my name in the presence of two subscribing witnesses.

CARL FRIEDRICH WURMBACH.

Witnesses:

ANTON MULLER, CLEMENs WURMBACH.

IOO

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