GB618239A - Synthetic jewel or bearing material and method of making same - Google Patents
Synthetic jewel or bearing material and method of making sameInfo
- Publication number
- GB618239A GB618239A GB28786/45A GB2878645A GB618239A GB 618239 A GB618239 A GB 618239A GB 28786/45 A GB28786/45 A GB 28786/45A GB 2878645 A GB2878645 A GB 2878645A GB 618239 A GB618239 A GB 618239A
- Authority
- GB
- United Kingdom
- Prior art keywords
- oxide
- jewels
- bearing material
- making same
- synthetic jewel
- 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
-
- C—CHEMISTRY; METALLURGY
- C30—CRYSTAL GROWTH
- C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
- C30B29/00—Single crystals or homogeneous polycrystalline material with defined structure characterised by the material or by their shape
- C30B29/10—Inorganic compounds or compositions
- C30B29/16—Oxides
- C30B29/22—Complex oxides
- C30B29/26—Complex oxides with formula BMe2O4, wherein B is Mg, Ni, Co, Al, Zn, or Cd and Me is Fe, Ga, Sc, Cr, Co, or Al
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Glass Compositions (AREA)
- Adornments (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
Abstract
618,239. Glass manufacture. BENDIX AVIATION CORPORATION. Oct. 30, 1945, No. 28786. Convention date, Nov. 21, 1944. [Class 56] Synthetic jewel material, e.g. for instrument bearings, is produced by heating the following mixture in a vented furnace to raise it in not less than 80 mins. to a temperature of 2732- 2760‹ F.: ammonium alum 400 (parts by weight); boric acid 120; magnesium oxide 40; and either calcium oxide 10 and litharge 20, or beryllium fluoride or oxide 10 and zirconium oxide 10; with or without a trace of metallic colouring agent, e.g. cobalt. The first mixture is suitable where the material is to be drawn into canes for subsequent working into jewels, the second where the jewels are to be made by the drop method directly from the molten mass.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US618239XA | 1944-11-21 | 1944-11-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB618239A true GB618239A (en) | 1949-02-18 |
Family
ID=22038362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB28786/45A Expired GB618239A (en) | 1944-11-21 | 1945-10-30 | Synthetic jewel or bearing material and method of making same |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB618239A (en) |
-
1945
- 1945-10-30 GB GB28786/45A patent/GB618239A/en not_active Expired
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB885618A (en) | Glass body having a semi-crystalline surface layer and method of making the same | |
| GB818958A (en) | Glass-batches and method of preparation | |
| GB618239A (en) | Synthetic jewel or bearing material and method of making same | |
| GB848296A (en) | Improvements in the manufacture of glass | |
| GB627672A (en) | Improvements in and relating to optical glass | |
| GB597110A (en) | Improvements in or relating to the manufacture of glass | |
| GB799662A (en) | Production of plutonium-aluminium alloys | |
| US2415661A (en) | Beryllium boro-phosphate glass | |
| GB594394A (en) | Improvements in crystal contacts of which one element is silicon | |
| GB797203A (en) | Improvements in or relating to methods of growing quartz crystals | |
| GB780355A (en) | Dissoluble preparation, a method for its manufacture and a solution manufactured from the preparation | |
| CA492055A (en) | Process for the manufacture of fuzes and composition therefor | |
| AU213099B2 (en) | Improvements in or relating to process forthe manufacture of oil-gas | |
| GB913201A (en) | Process for producing a platinum coloured fe-ag alloy | |
| AU119733B2 (en) | Improvements in or relating tothe production of shaped articles of polymethylmethacrylate | |
| GB746164A (en) | Process for the manufacture of glass measuring instruments | |
| AU120342B2 (en) | Improvements in the production of compositions of or containing organic polysulphides and articles produced therefrom | |
| GB596346A (en) | Improvements in methods of producing reflection reducing surfaces on glass | |
| GB159865A (en) | Improvements in or relating to the manufacture of refractory articles | |
| AU158534B2 (en) | Process of producing insulin crystals with increased metal content | |
| AU159904B2 (en) | Improvements in or relating to methods of manufacturing resonat-cavity magnetrons and resonant-cavity magnetrons manufactured by this method | |
| ES213347A2 (en) | A procedure for the preparation of tereftal acid (Machine-translation by Google Translate, not legally binding) | |
| AU119950B2 (en) | Improvements in or relating to high temperature reactions and furnaces therefor | |
| AU755452A (en) | Process of producing insulin crystals with increased metal content | |
| CA491750A (en) | Process and furnace for the electrothermic production of carbon disulphide |