Apparatus for continuous casting

Claim 1

APPARATUS FOR CONTINUOUS CASTING COMPRISING A LADLE, A MOLD ABOVE THE LADLE AND HAVING A VERTICAL PASSAGE THERETHROUGH FORMING A CAVITY, MEANS FORMING A PASSAGE FROM SAID LADLE TO AND COMMUNICATING WITH SAID MOLD CAVITY AT THE LOWER END THEREOF, SAID MOLD BEING OF HIGH HEAT CONDUCTIVITY RELATIVE TO THE LADLE AND PASSAGE FORMING MEANS, MEANS FOR APPLYING PRESSURE ON THE MOLTEN METAL IN THE LADLE FOR FORCING THE MOLTEN METAL THROUGH SAID PASSAGE AND INTO SAID MOLD, MEANS FOR CONTINUOUSLY WITHDRAWING THE CAST PRODUCT AT A CONSTANT RATE FROM THE UPPER END OF THE MOLD, AND MEANS FOR OSCILLATING THE MOLTEN METAL AND THEREBY RAISING AND LOWERING THE LEVEL THEREOF IN AND RELATIVE TO SAID MOLD, SAID AT MENTIONED MEANS BEING OPERATIVE FOR RAISING THAT LEVEL AT A RATE SUBSTANTIALLY EQUAL TO THE RATE OF WITHDRAWAL OF THE CAST PRODUCTS AND ABRUPTLY LOWERING THE LEVEL INDEPENDENTLY OF AND DURING THE CONSTANT WITHDRAWAL OF THE CAST PRODUCT.