Patent
1975-03-03
1976-03-23
Jenkins, Robert W.
214 2, 214 17R, 259167, B28C 704
Patent
active
039456196
ABSTRACT:
The present disclosure is directed to a continuous concrete proportioning plant of the mobile type movable from job site to job site not requiring extensive site preparation. The primary frame has a compact combination of cement sand and aggregate systems which permits sand and aggregate trucks to be backed onto a three sided hopper for each material which when charged is lifted and tilted toward the center of the machine where it feeds a belt conveyor running longitudinally toward the front of the machine. Each belt system contains a continuous belt weighing device and a totalizer will stop and/or clear the conveyor when a predetermined amount is attained. The sand and aggregate hoppers may be tilted to achieve the best flow rate through metering gates.
REFERENCES:
patent: 3189327 (1965-06-01), Domenighetti
patent: 3251484 (1966-05-01), Hagan
patent: 3295698 (1967-01-01), Ross
patent: 3343688 (1967-09-01), Ross
patent: 3476270 (1969-11-01), Cox
patent: 3603567 (1971-09-01), Sackett
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