| 摘要 |
PROBLEM TO BE SOLVED: To improve the replacement of air inside a container in mixing operation so as to make the upper liquid flow down faster. SOLUTION: A downwardly widened stepped part 4 is formed in the inner periphery of somewhere suitable from the neck 2 to the trunk 3 of a first liquid container 1. On the outer periphery of the neck 2 a peripheral cylinder 5 is fitted in a removable manner. On the inner side of the peripheral cylinder 5 and as its continuation from the top end a cylinder 6 is provided, which is inserted through the neck 2 and into the trunk 3 with play and whose lower end is brought down under the downwardly widened stepped part 4. Above the peripheral cylinder 5 a second liquid container 7 is placed in a manner of communicating with the upper end of the cylinder 6. Inside the cylinder 6 a pipe 8 for replacement of air is erected and at the lower end of the cylinder 6 an inside stopper 9 is fitted in a renaovable manner. From the outer peripheral edge of the inside stopper 9 one to several slantingly projecting pieces 10 are projected with their forward ends opposite to the downwardly widening stepped part 4. |
