This is the device to untwist the yarn which has been passed through a loom.
The yarn is winded a bobbin or a paper tube and processed, while air between threads is removed by vacuuming. And this can restrain unevenness of setting. This also used for shape‐memory shirts, or for setting pleats shape.
This is a cylinder-shape boiler, which has relatively high efficiency and is suitable for inferior fuel.
With a large quantity of holding water, fluctuations of pressure or water level by change of loads is minimum. It also has excellent operability, maintainability, and durability.