|
US3057615A
|
|
Air supply system for cupolas
|
|
US2721736A
|
|
Water-cooled cupola
|
|
US2687294A
|
|
Pressurized cupolas
|
|
US2709009A
|
|
Cupola charging device
|
|
US2595295A
|
|
Wedge testing
|
|
US2595296A
|
|
Tuyere arrangement in cupola furnaces
|
|
US2595294A
|
|
Production of iron for use in the manufacture of cast iron products
|
|
US2595293A
|
|
Apparatus for determining the fluidity of molten metals
|
|
US2595292A
|
|
Method of adding alloys to metals
|
|
US2471776A
|
|
Air supply apparatus for cupola furnaces
|
|
US2471775A
|
|
Apparatus for supplying air to cupola furnaces
|
|
US2467406A
|
|
Method of obtaining predetermined physical constitution in iron
|
|
US2345503A
|
|
Tuyere
|
|
US2345502A
|
|
Cupola apparatus and method of melting metal
|
|
US2361416A
|
|
Fluxing material for metallurgical furnaces and method of operating said furnaces
|
|
US2313769A
|
|
Apparatus and method for the control of air flow through furnace tuyeres
|
