ES239148A3 - New procedure for the manufacture of light protective helmets (Machine-translation by Google Translate, not legally binding)
- Google Patents
New procedure for the manufacture of light protective helmets (Machine-translation by Google Translate, not legally binding)
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MASSA ARENAS JOAQUIN
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MASSA ARENAS JOAQUIN
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Priority to ES0239148ApriorityCriticalpatent/ES239148A3/en
Publication of ES239148A3publicationCriticalpatent/ES239148A3/en
Casting Or Compression Moulding Of Plastics Or The Like
(AREA)
Abstract
New method of manufacturing lightweight helmets, characterized in that a thermosetting or thermoplastic agent is dispersed in a quantity of cork granulate, under conditions such that the obtained molding mass is perfectly flowing under pressure and temperature, the molding mass is compressed in a matrix whose parts present, respectively, the configurations of the outer and inner parts of the frame of the hull to be obtained, until achieving the desired reduction in volume, and in heating the compressed mass, while maintaining the applied pressure, under conditions of temperature and such time that hardening of the compressed wall between the parts of the matrix is obtained. (Machine-translation by Google Translate, not legally binding)
ES0239148A1957-12-161957-12-16New procedure for the manufacture of light protective helmets (Machine-translation by Google Translate, not legally binding)
ExpiredES239148A3
(en)
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