Telephony Volume 15

Telephony Volume 15

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1908 edition. Excerpt: ...insulators to be overlooked, no breakage of the copper oxide plates in shipment, and no sifting of powdered copper oxide, which in some types of cells occasionally causes internal short circuits. The "BSCO" battery is being widely introduced in large telephone exchanges and the manufacturers, The Battery Supplies Company, Newark, N. J., will, we understand, send cells for inspection and test to managers of telephone companies. They also have several booklets and other literature which will doubtless be of interest to those who use batteries of any kind which will gladly be sent upon request. AMERICAN JUNIOR JOINTS. THE American Electric Fuse Company, Muskegon, Michigan, has gotten out an improvement in wire con-' nectors or joints called the American Junior joint, of which the illustration's show the general design. There are new American Junior joint twisted. new plates could be inserted. In the new "BSCO" cell, the old elements, holder and all, are allowed to drop from the cover and are discarded without being touched. An assembled set of elements and also a set of elements attached to the cover, together with the other materials for a "renewal," are shown in the accompanying illustrations. The other materials just mentioned are a can of caustic soda (just sufficient for one cell )and a bottle of oil. In the process of renewal, the cell is first disconnected, then the covers are removed, after which, by unfastening the large thumb nut, the old elements are allowed to drop to the ground. The old solution is then poured out of the jar, which is refilled with clean water. After cutting out the bottom of the soda can with a pen knife, the contents Cross section American junior Joint twisted. points and ideas more

Product details

  • Paperback | 490 pages
  • 188.98 x 246.13 x 25.15mm | 870.89g
  • United States
  • English
  • black & white illustrations
  • 1236972058
  • 9781236972057