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Hijos De Joaquin Domenech S L
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Hijos De Joaquin Domenech S L
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Application filed by Hijos De Joaquin Domenech S LfiledCriticalHijos De Joaquin Domenech S L
Priority to ES1975214348UpriorityCriticalpatent/ES214348Y/en
Publication of ES214348UpublicationCriticalpatent/ES214348U/en
Application grantedgrantedCritical
Publication of ES214348YpublicationCriticalpatent/ES214348Y/en
Improved toy drum that being constituted by a hollow cylinder closed by both bases, is essentially characterized in that the rings that end their ends, comprising internal ribs of axial seat against the latter, are related to each other by several traction springs, cylindrical helical, whose respective ends engage in each of the rings, determining an elastic tension of compression between rings and ends of the cylinder constituting the drum. (Machine-translation by Google Translate, not legally binding)
ES1975214348U1975-07-301975-07-30
PERFECTED TOY DRUM.
ExpiredES214348Y
(en)
Stability of a closed cylindrical orthotropic elastic shell with allowance for linear heredity(Stability analysis of elastic axially compressed orthotropic glass-fiber-reinforced-plastic cylindrical shell with linear heredity properties)