TY - JOUR AU1 - Hall, Leon M. AU2 - AB - JULY 27, I<}or. J titutifit �tUtritau. sea. Like an immense blanket the fog !s dra.wn air and the other gas. Valves in the pipes regulate eould not be traced, it having passed through several through the Golden Gate. Below the blanket all is the flow. The upper ends of the pipes, A. and B, sup­ hands and used without any test as to its strength. gray and dreary; above, all is sunshine and delight­ port a valve-casing in which a valve-plug is mounted Owing to defective construction and design it was said ful weather. The topography of the district is re­ to turn. The valve-plug, as shown in the smaller to have been safe when new for only 20 pounds poc markable because of the close juxtaposition of the figure, is formed with two annular ports, one of which square inch, but was being used at 70 pounds when it is constantly in register with the air-pipe and the ocean, bay, mountain and foothills. The valley, level blew up. The inspectors found that this latter event other with the gas pipe. From these ports channels as a table, is 450 miles long and 50 miles wide, having was due TI - Electric Hoists on the Comstock JF - Scientific American DO - 10.1038/scientificamerican07271901-53b DA - 1901-07-27 UR - https://www.deepdyve.com/lp/unpaywall/electric-hoists-on-the-comstock-Ly8wwtmkhM DP - DeepDyve ER -