PURPOSE: To facilitate handling and maintenance control and to perform large- quantity production easily by forming a throwaway container which has perforated lines by using a material which transmits an impulsive wave when given an external shock.
CONSTITUTION: The main body 1 of the producing container A which has a cover bottom 2, an opening 4, etc., is made of a material, such as a metallic plate, synthetic resin, and strong paper, which transmits an impulsive wave when given an external shock and also allows concrete to be charged without any air bubble nor gap, and perforated lines 5 are made partially. The container A is divided along the perforated lines 5 to easily take a sample out and the container A is thrown away. Therefore, the handling and maintenance control are easy are compared with cast containers which are heavy and used repeatedly, and the producing container which is easily mass-produced is obtained.
SUMITOMO CORP
MAEDA SEISAKUSHO
| JPS5510929U | 1980-01-24 |
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