A Practical Introduction to Medical Electricity with a Compendium of Electrical Treatment

A Practical Introduction to Medical Electricity with a Compendium of Electrical Treatment

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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. 1878 edition. Excerpt: ...coils, the second in a compartment for the one not in use. O, O. Holes for the rheophores when the extra-current is wanted; for the pedal rheotome; and for an external battery, if required. Faradic apparatus, designed by Dr. Tibbits. Size: length, 13 inches; breadth, 4J inches; depth, 10 inches; weight, 16 pounds. AA. Two large Leclanche cells, united in multiple arc, and exposed by the removal of B, a drawer for accessories. C. Key for closing the circuit between the cells and the primary coils--the circuit is automatically broken by the guard R.'when the lid is shut. D. Screw regulating the intermittences of the hammer E. F. Soft iron core protruding from the primary coil K. G. Screw between which and F the hammer vibrates. H. Rod for elevating the secondary coil, L, which is kept in any position by the spring O. The drawing represents the secondary entirely withdrawn from the influence of the primary--at least practically so for therapeutical purposes. The current strength will depend upon the amount of the secondary made to enclose the primary; this evidently is measured by the protrusion of H, which is accordingly graduated. M, M. Binding screws for attaching Duchenne's pedal rheotome N. Slow interruptions are made by pressing upon the spring P with the foot. In the following the battery consists of chloride of silver elements. Fig. 55. Gaiffe's pocket faradic apparatus. A, B, C, D. Box containing the apparatus. L, L'. Two chloride of silver cells. M. The primary and secondary coils. R. Milled head for pulling out the graduating tube. P. Lever which sets the apparatus into action and graduates the rapidity of intermittences. O. Metallic pin for producing slow interruptions. For this purpose the lever in P' is pressed down with the...show more

Product details

  • Paperback | 54 pages
  • 189 x 246 x 3mm | 113g
  • Rarebooksclub.com
  • United States
  • English
  • black & white illustrations
  • 1236758447
  • 9781236758446