CLAY-DRYING OVEN]

Along the north wall, bins are provided for the storage of fuel, clay,

sand, and other kiln supplies. There are two floor drainage sinks, and

electric current, steam, water, and compressed air, are provided.

[Illustration: Fig. 8.

Transactions of the American Society of Civil Engineers, vol. LXX, Dec. 1910 Federal Investigations of Mine Accidents, Structural Materials and Fuels. Paper No. 1171 · 第 26 / 46 题