igned to operate the Their inductive system consists of two large horse- mine-doors through the medium of a rock-shaft, a shoe eleeti-omagnets placed one in front of the other crank-arm, and a link connected with one of the doors. behind the axle. The armature is of the Brown type, The rock-shaft… … hour. The weight of the engine and its tender in ser- various widths of studding. AN AUTOMATIC MECHANISM FOB OPEBATING vice is 198,660 pounds. The results, which, as we have MINE-DOOBS. said, were very satisfactory, were the following, in the Tbe First Horseless Carriage. course of the most recent…
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