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.)
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WICHMANN HENRY FRAHM
Original Assignee
WICHMANN HENRY FRAHM
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Publication date
Application filed by WICHMANN HENRY FRAHMfiledCriticalWICHMANN HENRY FRAHM
Priority to ES0234887ApriorityCriticalpatent/ES234887A3/en
Publication of ES234887A3publicationCriticalpatent/ES234887A3/en
Three-carbon automatic arc lamp with automatic adjustment, characterized by being composed of three coals converging at a point, and between the three points of the coals the arc is produced when the three coals are connected to the three phases of a three-phase current, existing a transformer for the transformation of the industrial current to a low voltage, convenient to produce the arc, and elements of automatic adjustment for the advance of spent coals and for a final automatic interruption to the total wear of the coals. (Machine-translation by Google Translate, not legally binding)
ES0234887A1957-04-151957-04-15Automatic three carbon voltaic arc lamp (Machine-translation by Google Translate, not legally binding)
ExpiredES234887A3
(en)
Improvements in transformers with adjustable derivatives under load through magnetic reinforcers (Machine-translation by Google Translate, not legally binding)
System for regulating the current power supply in high current resistance ovens fitted with alternate current (Machine-translation by Google Translate, not legally binding)