K-117 - Pelletizing Furnace

K-117-PELLETIZING FURNACE SILVER BAY, MINNESOTA Hard iron pellets emerge from a pelletiz. ing furnace of the E. W. Davis Works, built by the Reserve Mining Company. These pel- lets are formed by rolling moist iron ore con- centrate into balls. The furnace hardens the balls at 2400° so they may be shipped as pellets. 70-K297 DISTRIBUTED BY HUMPHREY'S, GRAND MARAIS, MINN. PHOTO BY HUMPHREY NATURAL COLOR REPRODUCTION -CURTEICHCOLOR ® ART-CREATION REG.U.S.PAT.OFF.