COMBINATION MEASURING APPARATUS

PURPOSE: To improve the transfer efficiency of a material to be measured from the upper-stage side hopper to the lower-stage side hopper. CONSTITUTION: The moving direction of a bottom plate 33 of a pool hopper 25 for opening the lower opening surface of the tubular body 26 is made equal to the moving direction of a bottom plate 43 of a low measuring hopper 35 at the lower stage for closing the lower opening surface of a tubular body 36. Furthermore, the moving direction of the bottom plate 43 of the measuring hopper 35 for opening the lower opening surface of a tubular body 36 is made equal to the moving direction of a bottom plate 59 of a timing hopper 50 at the lower stage for opening the lower opening surface of a tubular body 51. When the bottom plate of the lower-side hopper is moved in the closing direction, the bottom plate of the upper-side hopper is moved in the opening direction at approximately the same tine. The material to be measured in the upper-side hopper is transferred into the lower-side hopper.