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Application filed by Arturo Scartazzi, Antonio OpessifiledCriticalArturo Scartazzi
Publication of CH2487ApublicationCriticalpatent/CH2487A/fr
B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
B61L5/00—Local operating mechanisms for points or track-mounted scotch-blocks; Visible or audible signals; Local operating mechanisms for visible or audible signals
B61L5/20—Audible signals, e.g. detonator audible signalling
B61L5/22—Devices for initiating the release of detonators in a certain position of a signal
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Engineering & Computer Science
(AREA)
Mechanical Engineering
(AREA)
CH2487A1890-07-161890-07-16Appareil automatique et répétiteur pour décharges d.larme sur les chemins de fer
CH2487A
(fr)