Mixed building material-transport equipment - has magnetic-card station controlling hatch lock and additive-metering devices

摘要

The vehicle transports mixed building material from a central mixing station to site, being typically a mobile concrete mixer. The mixture is prepared in predetermined proportions in the station and loaded into the equipment, and is made ready for use at site by adding water and other additives as desired. A lock is for the filler hatch, together with metering feeds for the water and additives. A magnetic-card station controls the lock and metering feeds, also providing all data covering the state and operation of the equipment and of the mixture. ADVANTAGE - Virtually eliminates external effects such as heavy rail or drying out, or manual tampering with mixture.