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Priority to ES0244950ApriorityCriticalpatent/ES244950A1/en
Publication of ES244950A1publicationCriticalpatent/ES244950A1/en
Improvement in the molding of hollow pieces by casting, consisting essentially of arranging in the piece of the mold that constitutes the cover or complement of the mold itself, a rod-shaped core concentric to the circular emptying of said piece, with a separation between one and the other equivalent to the thickness of the wall that one wishes to obtain and whose height will coincide substantially with that of the open base of said complementary piece of the mold. (Machine-translation by Google Translate, not legally binding)
ES0244950A1958-10-281958-10-28A perfection in the molding of hollow pieces by colada (Machine-translation by Google Translate, not legally binding)
ExpiredES244950A1
(en)
Improvements in the dismollection of hollow fibrocement parts injected between two media molds with rigid nucleus. (Machine-translation by Google Translate, not legally binding)
Improvements in the construction of molding provisions for the manufacture of concrete pieces. (Machine-translation by Google Translate, not legally binding)
Device for obtaining concrete parts with built-in glass, applicable to machines for the manufacture of prefabricated concrete pieces. (Machine-translation by Google Translate, not legally binding)