| 摘要 |
PURPOSE:To keep the speed of chemical reaction constant quickly, by providing a heater built-in in a stirrer and semi-fixing the middle part of a stirrer shaft and connecting a motor shaft giving a stirring motion with the stirrer shaft by keeping it eccentric. CONSTITUTION:A stirrer 7 is arranged so as to make a stirring motion by driving of a stirring motor 12. The upper end of the stirrer 7 is fixed at the position made eccentric from the center of a round plate 11 and the stirrer 7 is eccentrically rotated in accordance with revolving motion of the round plate 11, and the stirrer 7 is semi-fixed through a rubber packing 9 at a fixture 8 fixing the stirrer which is disposed around the center of the stirrer. A lead wire 18 of electric source for heating is drawn out on the halfway of the stirrer 7 shaft and its take-out opening 18a is arranged so as to be rotated always to a fixed direction. By this way, a cut of the lead wire 18 is eliminated. By such a way, a sample is stirred and heated efficiently and the speed of chemical reaction is kept constant quickly. |
