A System of Electrotherapeutics as Taught by the International Correspondence Schools, Scranton, Pa.

A System of Electrotherapeutics as Taught by the International Correspondence Schools, Scranton, Pa.

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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. 1902 edition. Excerpt: ...(see Fig. 1) that keeps clean, and is a convenience, particularly for travel to distant parts. A, A, A, Hard-Rubber Cells, 20. B. B, B, Corner-Posts. Z, C, Zinc and Carbon Elements E, A Wash-Tray in Which the Elements are Cleaned and Firmly Held for Transportation The features of this battery are: ' 1. It can be transported any distance, and a concentrated fluid may be kept separately in a bottle, and, when ready for the operation, diluted, and the cells filled. 2. All parts of the battery are easy of access. 3. If any element is broken, it can be changed or easily replaced, without the aid of an instrument-maker. 4. The elements are cleaned in the dripping-pan after each use, ' preventing any crystallization on the elements. 5. There is no spilling of fluids. 6. One-half of the battery (ten cells) can be used independently, thereby saving the zincs. 10. Cabinet Stationary Galvanic Battery.--Many different cells are used. The Leclanche cells are now generally employed. A semidry cell recently put on the market is the Hydra cell. It presents some advantages over other dry cells in having a very large zinc electrode that is exposed to the action of an energetic depolarizer. This is accomplished by dividing the zinc electrode in two, each in the form of a cylinder, of which one is placed in the interior of the carbon cylinder and the other exterior to same. The carbon is not alone surrounded by the depolarizer, but its exterior cavity is also filled with same. The result is that the depolarizer is given an extended zinc surface on which it may act and neutralize the polarizing effects of the current. When not in use, the liquid is more or less taken up by the absorbent material with which it is mixed, but as soon as the cell is put...show more

Product details

  • Paperback | 94 pages
  • 189 x 246 x 5mm | 181g
  • Rarebooksclub.com
  • United States
  • English
  • black & white illustrations
  • 1236972570
  • 9781236972576