wn over, and in all specifications for gun steel and armor plate; and the flow of the gases: is reversed. By this regenerative it is only by the slower and more carefully watched process the gas and air enter the furnace at a temper- and manipulated open-hearth process that these quali- ature of… … jected to fluid compression, which is de- heat, and the operator can tell at any time signed to remove certain defects that are just what is the chemical condition of the heat, and can control with the greatest common to all steel ingots not so treated. These defects are the formation of blow-…
Internet Archive · Public domain (published before 1931). Free to use for anything.
