feet, and can handle from 300 to 600 cords daily. The horse-power required aver- provide conduits through which air is pumped by ages from two to three in every hundred feet when means of a fan in the cab to the motors and trans- formers. As this air is taken from within the cab, it the conveyer is… … special engine. To operate the largest size rarely more A novel use of com- pressed air is made by than 50 horse-power is are adapted to operate with a voltage of about 285 on needed, and the steam can be furnished from the some railway companies in the Southern States of alternating current, and…
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