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Publication of BE651230ApublicationCriticalpatent/BE651230A/fr
B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
B28C7/04—Supplying or proportioning the ingredients
B28C7/06—Supplying the solid ingredients, e.g. by means of endless conveyors or jigging conveyors
B28C7/08—Supplying the solid ingredients, e.g. by means of endless conveyors or jigging conveyors by means of scrapers or skips
B28C7/0823—Supplying the solid ingredients, e.g. by means of endless conveyors or jigging conveyors by means of scrapers or skips using manually-operated cable-pulled drag shovels
B28C7/0829—Supplying the solid ingredients, e.g. by means of endless conveyors or jigging conveyors by means of scrapers or skips using manually-operated cable-pulled drag shovels using reciprocating cable-suspended drag shovels