The Administration of Nitrous Oxide And Oxygen for Dental Operations
The book The Administration of Nitrous Oxide And Oxygen for Dental Operations was written by author Hewitt, Frederic W. (Frederic William), Sir, 1857-1916 Here you can read free online of The Administration of Nitrous Oxide And Oxygen for Dental Operations book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is The Administration of Nitrous Oxide And Oxygen for Dental Operations a good or bad book?
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Each nitrous oxide cylinder will furnish 50 gallons of nitrous oxide gas ; and each oxygen cylinder about 1 5 gallons of oxygen. The combined stand and union is so made that the cylinders can be connected together 28 Apparatus or disconnected without the aid of spanners or other appHances. In order to prevent undue strain to the union when the foot-key is being used upon the oxygen cyHnder, an adjustable screw pillar, fixed to the stand below, is made to engage that part of the under surface of... the oxygen cylinder upon which foot-pressure directly tells. In this way all foot-pressure is transmitted to the stand. Fig. 3. — Diagrammatic section of cylinders, and of combined stand and union. When the foot-key is placed upon one of the nitrous oxide cylinders, and is turned, the liberated nitrous oxide passes to its bag through brass and india-rubber tubes of com- paratively large calibre. When oxygen is similarly released from its cylinder it passes to its bag through brass and india-rubber Apparatus 29 tubes which are so much smaller than the nitrous oxide tubes that they are made to travel inside the latter.
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