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Individual
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Individual
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Priority to ES224230ApriorityCriticalpatent/ES224230A1/en
Publication of ES224230A1publicationCriticalpatent/ES224230A1/en
Security mechanism for tram trolleys and trolleybuses, characterized by consisting of a chassis formed by two elongated metal plates, equal and mounted parallel, with a longitudinal groove, one of whose edges constitutes a rack; the upper part is hooked, constituting a support for two axes, under one of which, it carries some housings for a pair of carbon brushes, pushed by a spring; the upper part of the chassis being covered, with a cover in which a strap is attached, or any other elastic means of attachment to the trolley bar. (Machine-translation by Google Translate, not legally binding)
ES224230A1955-09-301955-09-30A safety mechanism for tram and trouble trucks (Machine-translation by Google Translate, not legally binding)
ExpiredES224230A1
(en)
Improvements introduced in the construction of carretones or bogies with mobile travesaºo (Machine-translation by Google Translate, not legally binding)