nstitute, tion are to economically correct such peripheral varia- A cast steel car wheel with its rim or tread rolled and an interesting communication was read on the chemi- tions as are liable to exist in a solid steel-wheel casting, condensed, as in my machine, and by the method de- cal processes… … thereby. does not protect the iron, but favors, by its My machine is believed to be novel, in that hygroscopic character, the condensation of it embodies the combination of a series of circularly-ar- water vapor from the air as liquid water. A piece of because of the fact that the tread is…
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