can be used in different veins of coal varying allow sharp locking for turning corners with precision the mines of the Pocahontas District in West Virginia. in thickness from 3 to 8 feet, as the height of the ma- and safety. This shows a very deep vein, where there is plenty of chine over all is… … until the entire width of the room is un- be the case if the vehicle were carrying Fig. 1.—ELECTBIC, CHAIN, CTTTTING MACHINE UAEING VEBTICAL CUT. dercut 5 or 6 feet deep. After the ma- ammunition or stores. The movements chine is started, it continues to advance of the flaps are actuated from the…
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