ollers, the latter being of wrought iron with The instrument is mounted in a copper building steel centers, steel shafts. and steel miter wheels. The (shown in the small engraving), from the construction plant also embraces a fine powerful of which alliron has been rigidly ex- shearing machine… … girls, are prohibited from being em- The two plates forming the belt loyed in the coal mines of that would have a horizontal projectio State, and most of the large coal of 5 feet and a vertical height of 10 mining companies have been discharging such help feet, or each plate would be on an angle of…
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