i tw> AS J THE ADVOCATE OF INDUSTRY, AND JOURNAL OF SCIENTIFIC, MECHANICAL AND OTHER IMPROVEMENTS. [NUMBER 50. NEW-YORK, AUGUST 30, 1851. VOLUME 6.] it is connected by a rod. The crank is secured BLACK'S CAST-IRON TUBULAR TRACKWAY.—Fig. 1. Scientific American, to a shaft at the front; the said… … gate is secured to a piece fastened to the front cross section, figure 3, show a paved mid way The accompanying engravings represent a Southern Railway!. bar of the shafts, P, and to the end of the for the horses feet. It is graded and built of Tbe Savannah Republican sums up the new track-way for…
Patents · Wheel · Velocity · Oan · Upper · Sash · Upper sash · Learned men · Top bar · Professor owen · Velocity equal · Lower sash · Steam engine · Cut grain · Patent laws · Three years
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