AT44826B - Method and device for the production of speech plates from glass. - Google Patents
Method and device for the production of speech plates from glass.Info
- Publication number
- AT44826B AT44826B AT44826DA AT44826B AT 44826 B AT44826 B AT 44826B AT 44826D A AT44826D A AT 44826DA AT 44826 B AT44826 B AT 44826B
- Authority
- AT
- Austria
- Prior art keywords
- glass
- plate
- press
- speech
- production
- Prior art date
Links
- 239000011521 glass Substances 0.000 title claims description 8
- 238000000034 method Methods 0.000 title claims description 4
- 238000004519 manufacturing process Methods 0.000 title description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 238000005336 cracking Methods 0.000 description 1
Landscapes
- Manufacturing Of Magnetic Record Carriers (AREA)
Description
<Desc/Clms Page number 1>
Verfahren und Vorrichtung zur Herstellung von Sprechplatten at's Glas.
Bei dem Pressen von Sprechplatten aus Glas haben sich verschiedene Übelstände ergeben.
So verursacht nicht selten die zwischen dem mittleren Teile und dem Rande der Platte herrschende Tempeiaturdifferenz ein Springen der Platte, während Unterschiede in der Temperatur an dem die Rekordnuten tragenden Teil der Platte ein Verziehen der Nuten ergeben und damit eine naturgetreue Widergabe der Töne unmöglich machen.
Diese Übelst nde werden nach vorliegender Erfindung vermieden, entweder dadurch. dass beim Pressen der Sprechplatte in der Mitte eine genügend grosse Ausnehmung belassen wird (Fig. 1), oder aber, dass die Platte an den Rändern stärker und in der Mitte schwächer dimensioniert wird (Fig. 2), oder aber, dass sowohl in der Mitte eine Ausnehmung belassen wird. als auch die äusseren Ränder stärker dimensionieit werden, als die inneren Ränder (Fig. 3).
Durch diese besondere, Formgebung der Platte wird erzielt. dass sich die Temperaturunterschiede beim Pressen des Glases leichter und rascher ausgleichen können. wodurch ein Springen der Platte vermieden wird.
Diesen Grundzügen des neuen Verfahrens !'1 entsprechend besteht die zur Herstellung der
EMI1.1
teil kann auch an dem Oberteil a angeordnet und in geeigneter Weise selbsttätig wirkend an- geordnet sein.
EMI1.2
stärker als an ihrem inneren Umfange sind.
Das Pressen der Sprechplatten erfolgt in nachstehender Weise : Die Teile (l und b der Presse werden im Ofen oder anderweitig beispielsweise durch Gas angewärmt ; hierauf wird auf den
EMI1.3
zentralch Loche zum Durchstecken des Führungsbolzens an dem Sprechapparate ausgestattet ist.
**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.
<Desc / Clms Page number 1>
Method and device for the production of speech plates at's glass.
Various inconveniences have arisen when pressing speech plates out of glass.
It is not uncommon for the temperature difference between the middle part and the edge of the plate to cause the plate to crack, while differences in temperature on the part of the plate bearing the record grooves cause the grooves to warp and thus make a lifelike reproduction of the tones impossible.
These evils are avoided according to the present invention, either thereby. that a sufficiently large recess is left in the middle when pressing the speaking plate (Fig. 1), or that the plate is dimensioned stronger at the edges and weaker in the middle (Fig. 2), or that both in the A recess is left in the middle. as well as the outer edges are larger than the inner edges (Fig. 3).
This special shape of the plate is achieved. that the temperature differences can be equalized more easily and quickly when the glass is pressed. thereby preventing the plate from cracking.
These basic features of the new method! '1 is the production of the
EMI1.1
part can also be arranged on the upper part a and arranged to act automatically in a suitable manner.
EMI1.2
are stronger than their inner circumference.
The speech plates are pressed in the following way: The parts (l and b of the press are heated in the oven or otherwise, for example by gas; then the
EMI1.3
Zentralch holes for inserting the guide pin is equipped on the speech apparatus.
** WARNING ** End of DESC field may overlap beginning of CLMS **.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT44826T | 1909-10-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AT44826B true AT44826B (en) | 1910-11-10 |
Family
ID=3564611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT44826D AT44826B (en) | 1909-10-16 | 1909-10-16 | Method and device for the production of speech plates from glass. |
Country Status (1)
| Country | Link |
|---|---|
| AT (1) | AT44826B (en) |
-
1909
- 1909-10-16 AT AT44826D patent/AT44826B/en active
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