US1095979A - Apparatus for manufacture of objects from plastic substances. - Google Patents

Description

v 0. BBERHARD. APPARATUS FOR MANUFACTURE CF OBJECTS FROM PLASTIC SUBSTANCES. APPLICATION FILED JUNE 5, 1913.

1,095,97 19.. Patented May 5, 1914.

A fro /vfrs UNITED STATES PATENT OFFICE.

OTTO EBERHARD, OF HEIDENAU, NEAR DRESDEN, GERMANY.

APPARATUS FOR MANUFACTURE O13 OBJECTS FROM PLASTIC SUBSTANCES.

Original application filed January 30, 1913, Serial No. 745,177. Divided and this application filed June 5, I

Specification of Letters Patent.

Patented May 5,- 1914.

1913. Serial N0. 771,890.

The present application is a division of.

application Serial No. 745,177 filed by me January 30, 1913, and the invention relates to an apparatus for the continuous mechani-' cal manufacture of objects from plastic substances with a permanent pattern, changeable as desired, such substances being advantageously of an organic nature such as artificial horn and the like, the manufacture being effected by pressure devices. It is already known in the manufacture of pat- .terned objects such as soaps, sweets, to cause diversely colored streams manufactured by separate presses to pass through a mandrel or die and to unite them to a single cord under constant pressure. The present invention difi'ers therefrom essentially in the fact that the diversely colored separate streams coming from the separate presses, are led together to a chamber provided with mixing or deviating devices and leave the latter as apatterned combined stream. These inserted elements obstruct the smooth passage of the streams so that corresponding changes in position and consequently modification of the' pattern are effected. The same arrangement of the elements will naturally always give the same pattern. In order to attain a greater variety the inserted elements can be constantly actuated by a device. This again enables the same pattern always to be obtained or to be repeated by causing a certain inserted element to .rotate at a certain number of revolutions.

The new device consists of a suitable num ber of stream presses opening into a chamber provided with stationary or movable mixing or deviating devices and comprising outlets for the patterned combined stream.

In the accompanying drawing several embodiments of the invention are illustrated.

Figure 1 shows a triple press in horizontal section. Figs. 2,4 and 5 show three diiferpent constructions of a mixing chamber of a double press, in horizontal section. Fig. 3

is an end view of the inserted element of Fig. 2. Figs. 6 and 7 show two different constructions of a perforated disk located at the outlet end of the mixing chamber.

In the construction of Fig. 1, there are three separate presses which are provided in the usual manner with conveying worms and open into the common mixing chamber 4. The latter is provided with a mixing element such as a slowly rotating worm 5 driven by the pulley 6. The worm 5 does not serve to conv ey the substances like the worms in the presses 1 to 3 because this is already elfected by the pressure exerted on the separate streams of the presses 1, 2 and 3 which unite in the mixing chamber 4.

The worm 5 of the latter chamber rather serves to produce a certain kind of spiral pattern as each rib of the worm efiects on passing before the inlets a certain deviation. Thus the various streams are continuously divided by the worm 5 in diil'erent ways. The slowly rotating worm 5 can therefore be replaced by other. mixing elements.

In Fig. 2, a cross 7 instead of the mix- Y ing worm, is inserted in the mixing chamher 4 and in this case, streams only from two separate presses 1, 2 unite. The cross 7 can also be slowly rotated and acts in manner different from that of the worm 5 of Fig. 1, on the combined stream leaving the mixing chamber. A row of such crosses or starlike structures can be arranged in series in Y the mixing chamber as shown in Fig. 4. In the latter case there are three crosses 8, relatively staggered and mounted in series on the same shaft in the mixing chamber 4."

As said before, the inserted elements may instead of being rotatable, be stationary or movable in a different manner. In Fig. 5 there are stationary inserted elements 9 arranged within the mixing chamber 4 and consisting of rods or other projections. The outlets of two presses 1, 2 open into the mixing chamber, one of them being provided with three spouts 10. It is evident that the mixing elements can be of any shape provided that they produce a deviation of the separate colored substances lying beside one another, whereby a certain pattern is obtained. The pattern of the combined stream leaving the mixing chamber 4 can be still further influenced by providing perforated disks 11 at the outlet end of the chamber, two constructions there combined stream, mixing means arranged in said chamber, comprising a turning shaft and arms fastened on said shaft,engaging 15 and mixing 0r deviating the streams led into the chamber.

In testimony whereof I aflix my signature in presence of two Witnesses.

OTTO EBERHARD.

Witnesses PAUL AREAS, CLARE SIMON.

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