Davies, Charles, 1798-1876 · New York, Cincinnati [etc.] American book company · leaf 380
slope of 2 inches in10 leet, so that the loaded cars would descend by the force ofgravity, the last car in a train having a brake with which toregulate the speed. The chute should be 12 to 15 feet from theedge of the tunnel, to admit of constructing the inclined bin forthe discharge of the ore into… … 374 ELEME2>TS OF SUEYEYIi^G. [BOOK X. of the proposed tunnel floor and drive a nail in the peg, andrei^eat the operation at the point where the chute is to be sunk.Xow make a careful traverse between these points ; the directionof a line which will run from the mouth of the tunnel directlyunder…
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