GB358928A - Improvements relating to phonographic records - Google Patents
Improvements relating to phonographic recordsInfo
- Publication number
- GB358928A GB358928A GB1406030A GB1406030A GB358928A GB 358928 A GB358928 A GB 358928A GB 1406030 A GB1406030 A GB 1406030A GB 1406030 A GB1406030 A GB 1406030A GB 358928 A GB358928 A GB 358928A
- Authority
- GB
- United Kingdom
- Prior art keywords
- gelatine
- solution
- per cent
- wax master
- celluloid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B3/00—Recording by mechanical cutting, deforming or pressing, e.g. of grooves or pits; Reproducing by mechanical sensing; Record carriers therefor
- G11B3/68—Record carriers
- G11B3/70—Record carriers characterised by the selection of material or structure; Processes or apparatus specially adapted for manufacturing record carriers
Landscapes
- Materials For Medical Uses (AREA)
Abstract
Moulds for impressing phonograph records are made by pouring a gelatine solution on the original wax master to form a film which when solid is mounted on a backing. The gelatine may have alkaline bichromate added as a hardening agent. The gelatine may be secured to a metal plate by an adhesive, or may be applied to the wax master as a thin coating upon which celluloid or a solution of pyroxyllin in acetone is poured and allowed to dry. The celluloid &c. may be used in the form of dry or damp sheets which are secured to the film by a solution of the same material. The gelatine solution when used as a thin coating for the wax master may comprise 3 per cent gelatine, 15 per cent glycerine, and 82 per cent water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1406030A GB358928A (en) | 1930-05-07 | 1930-05-07 | Improvements relating to phonographic records |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1406030A GB358928A (en) | 1930-05-07 | 1930-05-07 | Improvements relating to phonographic records |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB358928A true GB358928A (en) | 1931-10-07 |
Family
ID=10034261
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1406030A Expired GB358928A (en) | 1930-05-07 | 1930-05-07 | Improvements relating to phonographic records |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB358928A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT202200010328A1 (en) * | 2022-05-18 | 2023-11-18 | Univ Degli Studi Roma La Sapienza | Procedure for preparing a phonograph record |
-
1930
- 1930-05-07 GB GB1406030A patent/GB358928A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT202200010328A1 (en) * | 2022-05-18 | 2023-11-18 | Univ Degli Studi Roma La Sapienza | Procedure for preparing a phonograph record |
| WO2023223151A1 (en) * | 2022-05-18 | 2023-11-23 | Universita' Degli Studi Di Roma "La Sapienza" | A process for the preparation of a phonograph disc |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| FR1202284A (en) | Plate for lithographic reproduction | |
| GB358928A (en) | Improvements relating to phonographic records | |
| US2008092A (en) | Process for the production of sound records with a metallic base for talking machines | |
| GB743766A (en) | Stabilized dichromated polyvinyl alcohol coating material | |
| US2351600A (en) | Laminated sound record | |
| DE579177C (en) | Process for hardening phonetic carriers made from hardenable protein compounds | |
| GB208389A (en) | Improved abrasive paper or cloth for polishing purposes | |
| GB419368A (en) | Improvements in and relating to the production of metal casts from gelatine and likeheat-developable reliefs | |
| GB287044A (en) | A new or improved process for obtaining casts of the face, any part of the body and objects of any kind | |
| GB468942A (en) | Improvements in or relating to the duplication of diffraction gratings and like surface patterns | |
| US1954026A (en) | Sound record | |
| GB324330A (en) | Photographic paper having a transferable gelatine-silver film, and processes in connection therewith | |
| GB295797A (en) | Improvements in the manufacture of cellulose esters or the like sheets | |
| GB359018A (en) | Method of manufacturing stereotype matrices or embossing dies | |
| GB240532A (en) | Improvements in or relating to kinematograph or like films and the manufacture or treatment thereof | |
| GB358378A (en) | Improvements relating to the production of specimens or negatives for use in the microscopic observation of the surfaces of substances | |
| GB318580A (en) | Process for the production of foils, films and the like | |
| GB340976A (en) | Improvements relating to gramophone and like sound records | |
| US1777033A (en) | Printing stuff and printing method | |
| CH319264A (en) | Transparent material for receiving the impressions of printing forms for the purpose of producing master copies | |
| GB205828A (en) | Improvements in photographic and cinematographic films and in the process for the manufacture of same | |
| GB320963A (en) | Improvements in gramophone disc records and methods of manufacture thereof | |
| GB419412A (en) | Improvements in and relating to the production of metal casts from gelatine and likeheat-developable reliefs | |
| GB299752A (en) | Improvements in and relating to sound reproducing records | |
| GB791381A (en) | Improvements in or relating to the preparation of sand for use in making foundry sand moulds and cores |