, and mounted in a peculiar Manner upon a pair of broad-tired they intend to make two trips daily. It takes 22,000 feet ma- man. timber wheels. ple tolay a mile of track, and from $80 to $100 States cur- Patented through the Scientific American Patent Agency, To the rear of the wheels is a strong… … plank may be placed under going up the steepest grades the wheels and props. The sand had to be used; the cars levers are then put into theirscckets at the nut, and thescrew isrun down. A chain or gripper is then fastened around the the mines. The sharpest curves on the road were of 250 feet…
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