266 / | HD | METALLURGICAL APPARATUS |
200 | DF | MEANS FOR MELTING OR VAPORIZING METAL OR TREATING LIQUEFIED METAL {19} |
243 | DF | .~ Bessemer-type treating vessel {2} |
245 | DF | .~.~ With means pivotally mounting vessel {2} |
246 | .~.~.~ Means mounting vessel to trunnion ring |