nough and allows the water or mud to pass out at M. To wonderfully within twenty-five years. Our coal pro- for the extinguishment of our national debt, with- retain and secure the elevator at any point, as the duction, which was the main mining interest, was the out aid from any other element of… … angle, always retaining an upright position. This is shared by the lifting WILLIAMS'S ELEVATOR FOR MINES. is done by a yoke, shown in the dotted lines, which rope and the incline at I. suspends the elevator by the rear of the bottom, and Soon as the elevator begins to turn over, a portion pie…
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