DE173135C - - Google Patents

Info

Publication number
DE173135C
DE173135C DENDAT173135D DE173135DC DE173135C DE 173135 C DE173135 C DE 173135C DE NDAT173135 D DENDAT173135 D DE NDAT173135D DE 173135D C DE173135D C DE 173135DC DE 173135 C DE173135 C DE 173135C
Authority
DE
Germany
Prior art keywords
coal
tip
acid
charcoal
immersed
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.)
Active
Application number
DENDAT173135D
Other languages
German (de)
Publication of DE173135C publication Critical patent/DE173135C/de
Active legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B31/00—Electric arc lamps
    • H05B31/02—Details
    • H05B31/06—Electrodes
    • H05B31/08—Carbon electrodes
    • H05B31/10—Cored carbon electrodes

Landscapes

  • Carbon And Carbon Compounds (AREA)

Description

BERLIN. GEDRUCKT IN DER REICHSDRUCKEREI.BERLIN. PRINTED IN THE REICHSDRUCKEREI.

Claims (3)

Patent-Ansprüche:Patent Claims: 1. Bogenlampenkohle, dadurch gekennzeichnet, daß die Dochtmasse in der Spitze der Kohle durch chemische Behandlung teilweise zersetzt ist, zu dem Zweck, die Zündstromstärke zu vermindern.1. arc lamp charcoal, characterized in that the wick mass in the tip the coal is partially decomposed by chemical treatment, for the purpose that To reduce the ignition current. 2. Verfahren zur Herstellung von Kohlen nach Anspruch 1, dadurch gekennzeichnet, daß die Spitze der Kohle in eine Saurelösung eingetaucht wird.2. A method for the production of coals according to claim 1, characterized in that that the tip of the coal is immersed in an acidic solution. 3. Ausführungsform des Verfahrens nach Anspruch 2, dadurch gekennzeichnet, daß als Säure kupferhaltige Salpetersäure verwendet wird.3. Embodiment of the method according to claim 2, characterized in that that the acid is copper-containing nitric acid is used.
DENDAT173135D Active DE173135C (en)

Publications (1)

Publication Number Publication Date
DE173135C true DE173135C (en)

Family

ID=437971

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT173135D Active DE173135C (en)

Country Status (1)

Country Link
DE (1) DE173135C (en)

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