DE92657C - - Google Patents

Description

IMPERIAL J

PATENT OFFICE.

COPYRIGHT

CLASS 32: Glass.

Addendum to patent J $ 92656 dated February 5, 1896.

Patented in the German Empire on May 22nd, 1896. ■■■; '■. Longest duration: February 4, 191Ί. '

The device provided for carrying out the process described in DRP No. 92656 for the production of glass sheets, rollers, etc. presupposes that the required glass mass is scooped out by workers from a special melting furnace and transported into the containers from which the glass mass is passed through ^{1 should} emerge a crack; ' in order to then be drawn 'and wall thickness' in the form corresponding to the column in any length. The. resulting labor costs; ' The heating of "special working ovens" and the soiling "of the glass caused by scooping out the glass can be" avoided "if the" ^{containers equipped with the 1} shape-giving gap are placed directly in a furnace ¹ "or in an extension to such a (DRP No. 76473 ) arranges. You then let the glass' mass in the known 'way under partitions' or. 'over contact provided imaging slit ¹ container to the method of drawing of' bridges after with a form-fitting panels, etc. directly on the oven rollers Wannen- ^'] make.

Earlier attempts have been made to use glass tablets and glass rollers ^; directly art ^j or in ^: a 'tank furnace' to be produced. ' The 'most of the kind of processes,' such as "-such ^{1 became known,} for example, by DRP No. 42036 and No. 49538, presuppose that the glass flows out of the furnace in gutters, etc., in order to be Apart from the fact that no glass surfaces suitable for window glass purposes can be created by rolling, if these are not to be ground and polished, when the glass is flowed into the open, there must necessarily be frequent interruptions in production Devices are shown in this process, and there are hardly any devices to be installed, by means of which the glass can be kept in the necessary viscous state after exiting the furnace by means of supplied heat Channel in which the collecting tank and on the rollers partially solidify and that disturbances occur in the execution of a regular production. In DRP 'No. 69091 a method and a device is described to produce Ciastafeln' and cylinders in a room which draws glass mass directly from a furnace. " But this space is not affiliated with the ^s * 'boiler room of Waiirienofens; also 'there is no special heating' of the room '

intended. Both must be according to the one shown Arrangement can also be considered excluded, as those moving in the room iron parts without endangering their durability and their function an indirect one or do not allow immediate heating. The warmth of the glass mass should now after the last-mentioned patent by the fact that the flaps after the lowering of the Glass mass should hold back its own heat. Here, too, it is quite inevitable that solidified masses form in the glass container, which very soon leads to the implementation of the method have to make impossible.

It is also used to achieve areas that are intended to be used for window glass purposes, of the utmost importance that the glass mass is kept as pure and free of bubbles as possible. This is very difficult to do if the ladle is often dipped into the glass mass and the latter is then poured into the drawer container. Namely by pouring out blisters and welts arise because of the glass cones carried on the outside of the ladle and threads cool and are mixed into the yeast glass mass when pouring out.

The present procedure and the device provided for it are now to deal with the inconveniences and which have since opposed the mechanical production of glass sheets, rollers, etc. directly on or in a tank furnace, remove. It is generally resp. for example here the · im D. R. P. No. 92656 based on protected drawing processes. With this procedure is the preservation of the glass mass on a viscosity suitable for drawing both in the Container as well as after the exit from it of the greatest importance.

The toughness required for drawing can now be achieved in the most reliable and inexpensive manner and the above-described contamination of the glass can be completely avoided if devices such as those shown in the accompanying drawing are used. Fig. 1 and 2 show in vertical and horizontal section a tub furnace, which has an attachment of a known type. A number of frustoconical containers α, which can be provided with an annular outlet gap for the production of glass rollers, are arranged in radial grouping on this extension. The glass in the furnace enters the annex in a known manner and under the action of the radiant heat of the furnace and then into the container in order to fill it with glass mass. Here, too, the latter is kept viscous by the radiation of the heat in the furnace. If this radiation is too strong and the glass mass becomes too thin for drawing, any control or complete shut-off can be carried out with slide 0. Since the glass mass exceeds the container in the proportion in which. If the level of glass in the furnace rises, it is up to you to bring about a very calm flow of the glass, so that the formation of bubbles can be avoided altogether. Any other contamination of the glass can also be completely prevented. The Aufsenwandungen the containers are kept warm by flames which enter through m foxes. The flames also prevent the gap from being clogged by cooling glass mass during the drawing process. Maintain temperature. Depending on whether the flame from m is intensified or weakened, the glass mass in or outside the container can be made more viscous or more easily fluid. The drawing process can therefore be influenced as desired, partly by the action of these flames, and partly by regulating the heat radiating from the furnace after the extension. If the drawing process is to be completely interrupted, the flame entering at m is completely switched off. As a result, the glass emerging from the gap becomes so rigid that it immediately blocks any further leakage. If the drawing process is then to be continued, a new flame is allowed to flow in at m. Depending on the size of the furnace, any number of containers can be provided for the glass outlet. This also means a significant difference compared to the facility described in DRP No. 69091. In Fig. 3 and 4 an arrangement is shown how such can be attached directly in a furnace without using an extension .. known type for the production of glass panels. The supply of the glass mass, the regulation of the heat emitted by the furnace and the heat newly supplied at m, as well as the influencing of the drawing process itself also takes place in the manner described in this case. The glass mass passes under bridges and over partition walls in the container α, which has a suitable gap for the production of glass panels; The foxes flow into the container, the flame of which also influences the emerging glass mass. In both cases (Fig. 1, 2 and 3, 4) it should be reserved, in addition to the heat radiating over from the furnace, also directly supplied to heat the in

to take the container resting glass mass from above to help, if so desired should. .

Claims (1)

Patent claim: To carry out the process protected in DRP No. 92656, the arrangement of the vessel (a) equipped with a shaping gap for the automatic exit of the glass mass in a furnace or in an extension of the latter, whereby both the passage of the glass mass from the furnace into the vessel 'fs takes place under controllable action of the radiant heat of the tub furnace, as well as the glass emerging from the vessel is influenced by the heat supplied when the latter is drawn out into the body of the desired wall thickness. · ■ ' , 1 sheet of drawings.