Specification of James Coxeter : apparatus for administering nitrous oxide gas.

  • Coxeter, James.
Date:
1873
Catalogue details

Licence: Public Domain Mark

Credit: Specification of James Coxeter : apparatus for administering nitrous oxide gas. Source: Wellcome Collection.

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    A.D. 1873, 25th January. N° 302, Apparatus for Administering Nitrous Oxide Gas* (This Invention received Provisional Protection only.') PROVISIONAL SPECIFICATION left by James Coxeter at the Office of the Commissioners of Patents, with his Petition, on the 25th January 1873. I, James Coxeter, of 23 and 24, Grafton Street East, London, W.C., 5 Surgical Instrument Maker, do hereby declare the nature of the said Invention for “ Improvements in Apparatus pgr Administering Nitrous Oxide Gas previous to Surgical or Dental Operations,” to be as follows My Invention consists, firstly, of the application to the gasometer used for administering nitrous oxide gas of a bell or vessel in the interior 10 thereof charged with water, and of causing the gas to enter this bell through pipes, and to circulate therein and to be drawn therefrom through these pipes for administration in the ordinary manner, the object being to supersede the use of weights and other external appliances for regulating the supply and pressure of the gas, and to 15 afford an easy means of administration. Secondly, my Invention consists of an apparatus containing a bell charged with water and fitted with pipes, through which apparatus the gas is conveyed from an ordinary gasometer, and having passed through