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Priority to ES8702225ApriorityCriticalpatent/ES2007671A6/en
Publication of ES2007671A6publicationCriticalpatent/ES2007671A6/en
Ironware for roadways, particularly mine shafts and the like which can be adapted to heights and widths variables and that consists of supporting elements shaped porticos. Every support element comprises two side pillars and sill head based profiles i, that are related at their ends by connectors intermediate compounds for clamp fluted and staples pressure that allow its attachment and / or sliding along the pillars and bars. Assembly of supporting elements used gatos fixing the pillars and in supporting the intermediate connectors, solidly joined to the crosspiece, for submission progressive. (Machine-translation by Google Translate, not legally binding)
ES8702225A1987-07-291987-07-29Entibation for galleries (Machine-translation by Google Translate, not legally binding)
ExpiredES2007671A6
(en)