(under the class definition) Art collection of processes in which molten Iron (Fe) is treated to improve its properties by a process in which untreated molten Iron is added to an apparatus either continuously or intermittently and treated molten Iron is correspondingly removed from the apparatus. The apparatus remains substantially full of molten Iron being treated at all times. The process can be carried out for an indefinite period as long as more untreated Iron is added.
(1) Note. The use of the term "continuous" in a patent is prima facie evidence that a cross reference is proper in this subclass in the absence of a positive indication that the process is carried out in a discontinuous manner, as by emptying an apparatus of treated Iron and refilling it with Iron to be treated.
