The Edison Monthly Volume 5

The Edison Monthly Volume 5

By (author) 

List price: US$19.84

Currently unavailable

Add to wishlist

AbeBooks may have this title (opens in new window).

Try AbeBooks


This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1912 edition. Excerpt: ...this continuous, selffeeding process in a furnace constructed to meet the needs of the inching industry may readily be seen. Not only is this furnace designed to separate all classes of ores, but by its economy of fuel it reduces the cost from Svo to $1.25 per ton. which represents in the aggregate an enormous saving. It may be noted also that it works on low voltage and e jnparativcly low amperage, sixty volts and-' amperes being sufficient to melt iron. coIper and silver ores si continuous stream for each arc used. The furnace is now: ng tried at the Hub Machine and Contract ing Company's plant, 117 West Fifty-first Street, and is supplied with Edison direct current at 1,000 amperes, distributed among six or seven arcs; but any desired number of arcs may be used, and, of course, the greater the number the greater the reduction. It is estimated to have a capacity of 500 pounds of iron ore per hour, or eight tons for every twenty-four hours, and although these figures are based upon experiments made in an open furnace with one arc, it is expected that they will be verified by the one which is at present in use. New Arc Furnace of the Hub Machine and Contracting Company In the Phenology Laboratory M IN'D,"said Matthew ArnolJ, in the cynical vein of an ancient sage whom he was describing, "is a light which the gods mock us with, to lead those false who trust it." Nevertheless, it is the best we have, the only light which can lead us to a knowledge of conditions under which life is lived, and help us to a practical control of the forces of nature sufficient for our needs. Considering its importance it is not surprising that attention was very early directed to it, and that psychology, or the science of the mind, is one of the oldest more

Product details

  • Paperback | 108 pages
  • 189 x 246 x 6mm | 209g
  • Miami Fl, United States
  • English
  • black & white illustrations
  • 1236486080
  • 9781236486080