| 摘要 |
<p>Support for metal rings inductively heated to temper and then cooled by a coolant as in the parent Patent, is provided with a number of openings round a circle. Specifically the openings may be equipped with nozzles. The openings or nozzles may be inclined to the axis of rotation of the ring. The nozzles may be reflux nozzles rotating round their own axes.</p> |
