DE533198C - Support, especially paper, for scanning graphite records for the purpose of electrical remote transmission - Google Patents
Support, especially paper, for scanning graphite records for the purpose of electrical remote transmissionInfo
- Publication number
- DE533198C DE533198C DEL76305D DEL0076305D DE533198C DE 533198 C DE533198 C DE 533198C DE L76305 D DEL76305 D DE L76305D DE L0076305 D DEL0076305 D DE L0076305D DE 533198 C DE533198 C DE 533198C
- Authority
- DE
- Germany
- Prior art keywords
- records
- graphite
- support
- scanning
- remote transmission
- 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
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N31/00—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods
- G01N31/22—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using chemical indicators
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
- Molecular Biology (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Biophysics (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Inks, Pencil-Leads, Or Crayons (AREA)
Description
Unterlage, insbesondere Papier, zur Abtastung von Graphitniederschriften für die Zwecke der elektrischen Fernübertragung Es ist bekannt, bildtelegraphische Stromzeichen durch Abtastung von Bleistift- (Graphit-) Niederschritten oder -Zeichnungen mittels zweier nahe benachbarter Metallspitzen zu geben. Das Verfahren hat sich praktisch nicht eingeführt, weil die Kontaktvermittlung durch Graphitstriche auf den üblichen Schreib- oder Zeichenpapieren nicht genügend zuverlässig ist. Zum mindesten mußte man die Bleistiftzeichen mit großer Sorgfalt unter kräftigem Druck niederschreiben. Die Erfindung behebt den Übelstand durch Anwendung der an sich bekannten sogenannten Metallstiftpapiere oder -folien, die mit einem Überzug von mineralischen Stoffen, wie z. B. den Oxyden, Carbonaten, Sulfaten, Phosphaten, Silikaten der Metalle einschließlich des Siliciums und Bors unter Zusatz von Bindemitteln, wie Stärke, Schellack, Seife, versehen sind. Solche Papiere sind als Indikatorpapiere im Handel und werden benutzt, um Schriftzeichen von Metallstiften, wie Messing, Silber, Blei, Zinn usw., aufzunehmen. Gegenüber dieser bekannten Verwendung beruht die Erfindung auf der Beobachtung, daß Graphitzeichen bei üblicher Schreib- oder Zeichenweise in einer Form aufgenommen werden, die auffallend gute und fehlerfreie Abtastung gewährleistet. Auch graphithaltige-Maschinenschriftzeichen lassen sich auf diesem Papier für die Zwecke verwenden.Support, in particular paper, for scanning graphite records For the purposes of long-distance electrical transmission it is known to use telegraphic telegrams Current signs by scanning pencil (graphite) steps or drawings by means of two closely spaced metal tips. The procedure has turned practically not introduced because the contact is made by graphite lines is not sufficiently reliable with the usual writing or drawing papers. At least the pencil marks had to be written down with great care, applying forceful pressure. The invention eliminates the drawback by using the so-called known per se Metal pen papers or foils coated with mineral substances, such as B. the oxides, carbonates, sulfates, phosphates, silicates of metals including of silicon and boron with the addition of binders such as starch, shellac, soap, are provided. Such papers are on the market as indicator papers and are used to pick up characters from metal pens such as brass, silver, lead, tin, etc. Compared to this known use, the invention is based on the observation that graphite characters recorded in the usual way of writing or drawing in a form that guarantees remarkably good and error-free scanning. Also graphite machine characters can be used on this paper for the purposes.
Die auf solchem Papier hergestellten Zeichen werden-- durch die Schleifnadeln sogar bei mehrmaliger Abtastung nicht verschmiert, was bei gewöhnlichem Papier in solchem Maße der Fall ist, daß die elektrischen Zeichen in störender Weise unscharf werden.The characters made on such paper are - through the grinding needles not smeared even with repeated scanning, which is in it is the case to such an extent that the electrical signs are blurred in a disturbing manner will.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEL76305D DE533198C (en) | 1929-09-26 | 1929-09-26 | Support, especially paper, for scanning graphite records for the purpose of electrical remote transmission |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEL76305D DE533198C (en) | 1929-09-26 | 1929-09-26 | Support, especially paper, for scanning graphite records for the purpose of electrical remote transmission |
Publications (1)
Publication Number | Publication Date |
---|---|
DE533198C true DE533198C (en) | 1931-09-09 |
Family
ID=7283914
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEL76305D Expired DE533198C (en) | 1929-09-26 | 1929-09-26 | Support, especially paper, for scanning graphite records for the purpose of electrical remote transmission |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE533198C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1171255B (en) * | 1955-01-26 | 1964-05-27 | Oxford Paper Company | Pressure-sensitive, heat-resistant recording material |
-
1929
- 1929-09-26 DE DEL76305D patent/DE533198C/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1171255B (en) * | 1955-01-26 | 1964-05-27 | Oxford Paper Company | Pressure-sensitive, heat-resistant recording material |
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