PROCEDIMENTO PER LA PRODUZIONE DI FOGLI DI CEMENTO AMIANTO E MATERIALI SIMILARI RIPORTANTI SOVRASTAM PATE DELLE FIGURE E DISPOSITIVO ATTO A REALIZZARE DETTO PROCEDIMENTO

摘要

To provide asbestos-cement and like sheets which are formed by build-up of a thin film on a rotating size roll, with an embossed patterned surface; a flexible mould layer of epoxy resin or like mouldable material having counterpart embossments moulded thereon, is removably wrapped about and secured to the size roll with its patterned side outward and before commencement of film build-up on the roll.