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Priority to ES0305823ApriorityCriticalpatent/ES305823A1/en
Publication of ES305823A1publicationCriticalpatent/ES305823A1/en
Lighting Device Outwards From Vehicle And Optical Signal
(AREA)
Abstract
Permanent lighting system for stairs, which is characterized by comprising a variable number of lamps powered at reduced voltage from a reducing transformer whose primary is permanently connected to the power supply network of the sector and whose lamps, connected in parallel, receive their feeding through the contacts at rest of a relay whose winding is connected in derivation with the supply of the set of lamps of normal lighting of the ladder and therefore of operation dependent on the ignition of these through the respective chronometric relay, and likewise, through a switch designed to prevent the operation of said lamps of reduced power and voltage by opening them, so that said lamps shine permanently during the hours of poor visibility and stop showing automatically by opening the contacts of the relay when switching on the set of lighting lamps normal nation of the ladder. (Machine-translation by Google Translate, not legally binding)
ES0305823A1964-11-091964-11-09Permanent lighting system for stairs. (Machine-translation by Google Translate, not legally binding)
ExpiredES305823A1
(en)
Improvements in filament ignition and disconnection systems, particularly in fluorescent lamps (Machine-translation by Google Translate, not legally binding)
Improvements in intermediate connection devices that guarantee the progressive lighting of the electric lamps of incandescence (Machine-translation by Google Translate, not legally binding)
Breathing for two fluorescent lamps of any fast starting power a. F. And corrected strobascopic effect (Machine-translation by Google Translate, not legally binding)