GB664112A
Expired / Lapsed
GB
⏱️ 0.0 years remaining
Improvements relating to photo-typecomposing apparatus and teleprinting apparatus
Assignee: Individual
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Filing: 1949-07-11
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Granted: —
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Expires: 1969-07-11
Abstract
Abstract 664,112. Discharge lamps. PEERY, W. E. July 11, 1949 [July 29, 1948], No. 18330/49. Class 39 (i). [Also in Group XL (b)] A printing lamp for a phototeleprinter comprises a glass envelope 280 in which are two electrodes 281, 282 in a hydrogen atmosphere. Electrode 281 is of solid metal but electrode 282 is of porous iron saturated with mercury. A metallic shield 284 acts as a condenser for the vaporized electrode materials and prevents the condensation of vapours on the glass. A window 285 is provided in the shield.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
GB
Data Source
google_patents
Last Synchronized
2026-10-23 01:09
CPC Classifications
B; B41; B41B; B41B17/00; B41B17/04; B41B17/10
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