GB548126A - Electrical recording stylus and method of making the same - Google Patents
Electrical recording stylus and method of making the sameInfo
- Publication number
- GB548126A GB548126A GB9518/41A GB951841A GB548126A GB 548126 A GB548126 A GB 548126A GB 9518/41 A GB9518/41 A GB 9518/41A GB 951841 A GB951841 A GB 951841A GB 548126 A GB548126 A GB 548126A
- Authority
- GB
- United Kingdom
- Prior art keywords
- core
- outer layer
- stylus
- cavity
- chromium
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L21/00—Apparatus or local circuits for mosaic printer telegraph systems
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Impact Printers (AREA)
Abstract
548,126. Making electric components. CREED & CO., Ltd. July 26, 1941, No. 9518. Convention date, Aug. 3, 1940. [Classes 83 (ii) and 83 (iv)] [Also in Group XL] Cutting by spark discharge.-A stylus for scanning a recording medium and applying thereto electric marking currents is made by producing a core 12b of relatively soft conducting material such as iron, steel, bronze and beryllium copper, and coating it with refractory conducting material such as chromium, rhodium, tungsten and molybdenum. The end of the stylus is formed with a cavity c by passing an alternating current between the end 12c and an opposed electrode. During use the cavity tends to be preserved and if alternating current be used in recording the cavity need not be preformed. The outer layer may first be formed and then filled with the core material or the core may be first formed and the outer layer applied by means such as electrodeposition. In a preferred form the core is of steel piano wire and the outer layer is of chromium. The core diameter may be from 8 to 10 mils and the outer layer may be 1 mil thick, and the stylus is particularly for use in a telegraph system.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US548126XA | 1940-08-03 | 1940-08-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB548126A true GB548126A (en) | 1942-09-25 |
Family
ID=21993680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9518/41A Expired GB548126A (en) | 1940-08-03 | 1941-07-26 | Electrical recording stylus and method of making the same |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB548126A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1276388B (en) * | 1963-02-25 | 1968-08-29 | Lightning Fasteners Ltd | Separable end link for a zipper |
-
1941
- 1941-07-26 GB GB9518/41A patent/GB548126A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1276388B (en) * | 1963-02-25 | 1968-08-29 | Lightning Fasteners Ltd | Separable end link for a zipper |
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