GB422257A - Improvements in and relating to apparatus for making records - Google Patents
Improvements in and relating to apparatus for making recordsInfo
- Publication number
- GB422257A GB422257A GB9584/34A GB958434A GB422257A GB 422257 A GB422257 A GB 422257A GB 9584/34 A GB9584/34 A GB 9584/34A GB 958434 A GB958434 A GB 958434A GB 422257 A GB422257 A GB 422257A
- Authority
- GB
- United Kingdom
- Prior art keywords
- paper
- pen
- potassium
- class
- aqueous solution
- 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
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D15/00—Component parts of recorders for measuring arrangements not specially adapted for a specific variable
- G01D15/16—Recording elements transferring recording material, e.g. ink, to the recording surface
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Color Printing (AREA)
Abstract
422,257. Inks. BRITISH THOMSONHOUSTON CO., Ltd., Crown House, Aldwych, London. March 27, 1934, No. 9594. Convention date, March 30, 1933. [Class 146 (iii)] [See also Group XIX] A recording pen comprising an automatically-moved tubular stylus is supplied with water or an aqueous solution of a chemical agent from a reservoir 10 and marks on a paper 12 impregnated with one or more substances which react with the water or the. aqueous solution to produce a coloured mark. When water is supplied to the pen the paper may be covered with any of the following mixtures :-(a) ferric sulphate and potassium ferrocyanide, (b) sodium carbonate and phenolphthalein, (c) sodium sulphide and mercurous nitrate, (d) potassium carbonate and alizarin. Aqueous solutions of sodium hydroxide, potassium hydroxide, sodium hydroxide, potassium carbonate may be used as ink on paper containing phenolphthalein, aniline red, thymol blue, brom thymol blue, alizarin or congo red. Aqueous solutions of potassium sulphocyanide, ferricyanide or ferrocyanide, or of sodium sulphide, may be used with ferric, mercurous, cupric, or lead salts. Any of the materials noted above for use in the aqueous solution supplied to the pen may be incorporated in the paper and a corresponding substance used in the pen instead of on the paper. Specifications 659/11, [Class 55 (ii)], and 337,937, [Class 40 (iii)], are referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US422257XA | 1933-03-30 | 1933-03-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB422257A true GB422257A (en) | 1935-01-08 |
Family
ID=21920741
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9584/34A Expired GB422257A (en) | 1933-03-30 | 1934-03-27 | Improvements in and relating to apparatus for making records |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB422257A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1188828B (en) * | 1960-07-25 | 1965-03-11 | Siemens Ag | Disturbance recorder with a writing organ and a fast rotating recording drum |
-
1934
- 1934-03-27 GB GB9584/34A patent/GB422257A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1188828B (en) * | 1960-07-25 | 1965-03-11 | Siemens Ag | Disturbance recorder with a writing organ and a fast rotating recording drum |
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