GB326765A - Improvements in gramophone records and the method of manufacture - Google Patents
Improvements in gramophone records and the method of manufactureInfo
- Publication number
- GB326765A GB326765A GB3692728A GB3692728A GB326765A GB 326765 A GB326765 A GB 326765A GB 3692728 A GB3692728 A GB 3692728A GB 3692728 A GB3692728 A GB 3692728A GB 326765 A GB326765 A GB 326765A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cellulose
- sheets
- impressed
- grooves
- cemented together
- 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
Abstract
326,765. Thornton. J. E. Dec. 14, 1928. Compound sheet materials.-Gramophone records are made of preformed sheets of regenerated cellulose, produced by precipitating the cellulose from viscose, i.e. a solution of cellulose xanthate, the sound-grooves being impressed in the usual manner, in one or both faces of the cellulose, preferably by using heated dies. When two or more sheets are used, they are cemented together before the grooves are impressed. Fillers such as barytes, pigments, or substances such as gums or resins may be incorporated with the cellulose. The material may be chemically hardened-superficially or throughout its mass by treatment with an agent such as formalin or alum. Flexing agents such as oils, glycerine, or sugars, may also be used. A multi-layer disc may be formed with the two outer sheets slightly larger than the interior, the two overhanging portions being turned over and cemented together to form a rounded edge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3692728A GB326765A (en) | 1928-12-14 | 1928-12-14 | Improvements in gramophone records and the method of manufacture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3692728A GB326765A (en) | 1928-12-14 | 1928-12-14 | Improvements in gramophone records and the method of manufacture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB326765A true GB326765A (en) | 1930-03-14 |
Family
ID=10392310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3692728A Expired GB326765A (en) | 1928-12-14 | 1928-12-14 | Improvements in gramophone records and the method of manufacture |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB326765A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3022078A (en) * | 1956-01-25 | 1962-02-20 | Tdk Electronics Co Ltd | Magnetic record sheet for a magnetic recording and reading apparatus |
| US3689078A (en) * | 1969-06-30 | 1972-09-05 | Yasujiro Ban | Colored recording discs |
| US4277071A (en) * | 1977-02-18 | 1981-07-07 | E M I Limited | Disc records having surface markings |
| US5799008A (en) * | 1993-02-26 | 1998-08-25 | Sony Corporation | Casing having multiple printed layers which provide a protected decorative area and unprotected area on which writing can be formed |
-
1928
- 1928-12-14 GB GB3692728A patent/GB326765A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3022078A (en) * | 1956-01-25 | 1962-02-20 | Tdk Electronics Co Ltd | Magnetic record sheet for a magnetic recording and reading apparatus |
| US3689078A (en) * | 1969-06-30 | 1972-09-05 | Yasujiro Ban | Colored recording discs |
| US4277071A (en) * | 1977-02-18 | 1981-07-07 | E M I Limited | Disc records having surface markings |
| US5799008A (en) * | 1993-02-26 | 1998-08-25 | Sony Corporation | Casing having multiple printed layers which provide a protected decorative area and unprotected area on which writing can be formed |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| FR834990A (en) | Method of applying ethylene polymers for the manufacture of impregnated, coated and lined or laminated products made of paper, fabric, etc. | |
| GB326765A (en) | Improvements in gramophone records and the method of manufacture | |
| GB551733A (en) | Improvements in cellular materials for structural or other purposes | |
| US2028126A (en) | Phonograph record | |
| GB502364A (en) | Process for producing proteic coating or film upon fibre, textile materials or the like | |
| DE470270C (en) | Process for the production of objects made of rubber or similar plastic materials when heated | |
| GB459544A (en) | Improvements in or relating to the manufacture of sheet material | |
| US1937680A (en) | Moldable material | |
| US1398148A (en) | Sound-record | |
| US1812550A (en) | Phonograph disk | |
| US1450739A (en) | Material for phonograph record blanks and process of making the same | |
| DE469933C (en) | Method for filling the cavity between the insole and the outsole in footwear | |
| DE581968C (en) | Carrierless adhesive film made from glutinous protein | |
| US1623285A (en) | Sound record | |
| CA234353A (en) | Composition for manufacturing artificial fibre, film, etc. | |
| DE607800C (en) | Process for the production of records from gelatine foils | |
| DE855056C (en) | Method of manufacturing a shoe sole plate | |
| GB327134A (en) | Improvements in gramophone records and the method of manufacture | |
| DE698818C (en) | Adhesive for plywood, veneer or the like. | |
| GB320963A (en) | Improvements in gramophone disc records and methods of manufacture thereof | |
| DE1942800A1 (en) | Release paper or cardboard | |
| GB210526A (en) | Improvements in and relating to the manufacture of paper and other fibrous compositions | |
| GB327135A (en) | Improvements in gramophone records and the method of manufacture | |
| GB351732A (en) | Improvements in or relating to sound records | |
| GB174372A (en) | An improved gramophone disc and process for the manufacture of same |