tial vacuum isproduced in the tunnel, and the pressure of and 3 feet in width, have been operated with success for the any of the annoyances that attend the waiting for street the atmosphere then propels the car in an opposite direction. past seven years. cars at street corners. THE SCOPE OF THE… … The New York Herald says " it was virtually the opening ing the press and public an opportunity to examine the day of the first underground railway in America." works, and witness the operations of the machinery. Mr. THE TUNNEL AND WAITING STATION. The New York Times says: " Certainly the most…
Patents · Cobalt · Asphalt · Machine · Wheel · Vis viva · Tho · Seyssel asphalt · Mechanical work · Patent office · Scientific American · Dust particles · Half cylinder · Specific gravity · Wrought iron · Zircon light
Internet Archive · Public domain (published before 1931). Free to use for anything.
