PL2092B3 - A method of producing sound discs for speaking machines. - Google Patents
A method of producing sound discs for speaking machines. Download PDFInfo
- Publication number
- PL2092B3 PL2092B3 PL2092A PL209221A PL2092B3 PL 2092 B3 PL2092 B3 PL 2092B3 PL 2092 A PL2092 A PL 2092A PL 209221 A PL209221 A PL 209221A PL 2092 B3 PL2092 B3 PL 2092B3
- Authority
- PL
- Poland
- Prior art keywords
- producing sound
- speaking machines
- speaking
- machines
- sound discs
- Prior art date
Links
- 239000000463 material Substances 0.000 claims description 5
- 229920001800 Shellac Polymers 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000011120 plywood Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- ZLGIYFNHBLSMPS-ATJNOEHPSA-N shellac Chemical compound OCCCCCC(O)C(O)CCCCCCCC(O)=O.C1C23[C@H](C(O)=O)CCC2[C@](C)(CO)[C@@H]1C(C(O)=O)=C[C@@H]3O ZLGIYFNHBLSMPS-ATJNOEHPSA-N 0.000 description 1
- 229940113147 shellac Drugs 0.000 description 1
- 235000013874 shellac Nutrition 0.000 description 1
- 239000004208 shellac Substances 0.000 description 1
Description
Najdluzszy czas trwania patentu do 18 kwietnia 1940 r.Wynalazek niniejszy dotyczy dalszego obnizenia kosztu plyt, wyrabianych podlug zgloszonego patentu Nr 1909, Osiaga sie to w ten sposób, ze z masy podlug pa¬ tentu glównego wyrabia sie cienkie arku¬ sze, które natlacza sie lub letóremi pokry¬ wa sie rdzen, skladajacy sie z masy jakie¬ go badz rodzaju.Mozliwy, np. jest wyrób cienkich arku¬ szy az do grubosci 0,3 mm w przeciwien¬ stwie do materjalu szellakowego, uzywane¬ go 3otychczas dla wyrobu plyt dzwieko¬ wych. Jasnem jest, ze mozna wyrabiac plyty po bardzo niskiej cenie, skoro za¬ stosuje sie, jako nosnik podtrzymujacy dla takich cienkich arkuszy, tania mase jakie¬ go badz rodzaju.Mozna tez postepowac w ten sposób, ze masa bardzo drobno sproszkowana posy¬ puje sie rdzen z taniego materjalu, a ca¬ losc potem sprasowuje sie w rodzaj plyty.Jako masa dla nosników podtrzymujacych, np. moga sluzyc rdzenie, zrobione z zy¬ wic z dodaniem mineralnych lub wlókni¬ stych materjalów, poza tern cienkie blachy metalowe, tektury zwykle i preparowane, dykty lub podobne materjaly. Wszystkie te materjaly mozna latwo pociagnac ma¬ sa, opisana w patencie glównym. PLThe longest term of the patent until April 18, 1940. The present invention concerns a further reduction of the cost of the slabs manufactured for the planks of the pending patent No. 1909.This is achieved in that the mass of the plies of the main patent is made into thin sheets, which a core, consisting of a mass of some kind, is possible, for example, it is possible to produce thin sheets up to a thickness of 0.3 mm, unlike the shellac material which has been used until now for the production of panels. sound. It is clear that it is possible to make the plates at a very low cost, since a cheap mass of whatever type is used as a support for such thin sheets. It is also possible to arrange that the mass is very finely powdered. a core of cheap material, and all then pressed into a kind of plate. As a mass for supporting carriers, e.g. cores made of resin with the addition of mineral or fibrous materials, except for thin metal sheets, cardboard usually and prepared, plywood or similar materials. All these materials can be easily pulled off the weight described in the main patent. PL
Claims (1)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| PL2092B3 true PL2092B3 (en) | 1925-06-30 |
Family
ID=
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US1465383A (en) | Composite lumber | |
| US2014749A (en) | Acoustic tile | |
| PL2092B3 (en) | A method of producing sound discs for speaking machines. | |
| US1709035A (en) | Manufacture of veneered blocks | |
| CN102990728A (en) | Highly shearing-resistant container bottom board and manufacturing method thereof | |
| US2503609A (en) | Phonograph record disk | |
| GB455557A (en) | Improvements in or relating to amusement devices | |
| US1468519A (en) | Laminated horn and process of making same | |
| GB768418A (en) | Magnetic recording discs and their manufacture | |
| US1047971A (en) | Phonograph-record. | |
| US1082709A (en) | Blank for talking-machine records. | |
| GB454101A (en) | Improvements in and relating to structures of cork | |
| US1511398A (en) | Phonograph needle | |
| US850494A (en) | Gramophone record-tablet. | |
| Bohannan | Large glued-laminated timber beams with two grades of tension laminations | |
| US1398144A (en) | Manufacture of sound-records | |
| US1694103A (en) | Game counter and process of making the same | |
| US1438078A (en) | Phonograph disk or record | |
| US2087973A (en) | Acoustic material | |
| GB361612A (en) | Improvements in or relating to centrifugal spinning pots | |
| GB561809A (en) | Improvements in sound records and the production thereof | |
| US1734139A (en) | Process of making master records | |
| US1274324A (en) | Phonograph-record and method of making the same. | |
| SU444692A1 (en) | Method for the production of wood fiber boards | |
| Michelman | Chladnian Movement in the Wood of Violins |