GB555344A - Improved method of forming hollow metal bodies - Google Patents
Improved method of forming hollow metal bodiesInfo
- Publication number
- GB555344A GB555344A GB209142A GB209142A GB555344A GB 555344 A GB555344 A GB 555344A GB 209142 A GB209142 A GB 209142A GB 209142 A GB209142 A GB 209142A GB 555344 A GB555344 A GB 555344A
- Authority
- GB
- United Kingdom
- Prior art keywords
- improved method
- hollow metal
- mandrel
- metal bodies
- class
- 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
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/16—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of other metals or alloys based thereon
- C22F1/18—High-melting or refractory metals or alloys based thereon
Landscapes
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Discharge Lamp (AREA)
Abstract
555,344. Making hollow bodies. BRITISH THOMSON-HOUSTON CO., Ltd., BOURNE, H. K., and BEESON, E. J. G. Feb. 17, 1942, No. 2091. [Class 83 (ii)] [Also in Group XL] A hollow body of refractory metal such as tungsten or molybdenum, e.g. an electrode of a discharge lamp, is made by winding a wire of the metal required on to a mandrel of the shape desired with its convolutions close and then surface welding the convolutions, e.g. by an arc in hydrogen. The arc may be between the body and an external electrode or between two such electrodes and caused to impinge on the body by a magnetic field. Where an intricate shape is required it is wound to approximate form on a mandrel and pressed to shape before welding. The wire may extend from the body to serve as a support. The surface of the body may be finally ground. Specification 12731/00, [Class 83]. is referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB209142A GB555344A (en) | 1942-02-17 | 1942-02-17 | Improved method of forming hollow metal bodies |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB209142A GB555344A (en) | 1942-02-17 | 1942-02-17 | Improved method of forming hollow metal bodies |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB555344A true GB555344A (en) | 1943-08-18 |
Family
ID=9733428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB209142A Expired GB555344A (en) | 1942-02-17 | 1942-02-17 | Improved method of forming hollow metal bodies |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB555344A (en) |
-
1942
- 1942-02-17 GB GB209142A patent/GB555344A/en not_active Expired
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