Specification of George Haseltine : inhaling apparatus.

  • Haseltine, George.
Date:
1873
Catalogue details

Licence: Public Domain Mark

Credit: Specification of George Haseltine : inhaling apparatus. Source: Wellcome Collection.

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    Specification. Haseltine* s Improved Inhaling Apparatus. will be instantly opened, allowing the air to escape at this point; the current of air passing through the horizontal branch 12 oyer the mouth or upper open end of the vertical portion 11 of the exhaust tube produces an upward current therein, and consequently no portion of the air blown into the mouth-piece can by any possibility pass down into 5 the main receptacle and exert a pressure upon the medicated liquid therein; all liability is thus avoided of the liquid being forced up the inlet tube into the acid vessel. Instead of employing an exhaust tube constructed as above described, and provided with a valve, an ordinary exhaust tube might be used, 10 and the stopper B or main receptacle provided with a valve opening outward into the external air, in which case should a person breathe or blow into the exhaust tube the air would pass down into the main receptacle, but would instantly escape through the valve before it could exert any pressure upon the medicated liquid. This device is however 15 but an equivalent of that first described, and either may be used as preferred. Having thus fully described the said Invention as communicated to me by my foreign correspondent, and the manner of performing the same, I wish it understood that I claim,— 20 First. The valve d, in combination with the exhaust tube C, inlet tube b9 stopper B, and main receptacle A, operating in the manner and for the purpose described. Second. The stopper B provided with a cavity or recess for the reception of the acid vessel c, as and for the purpose set forth. 25 Third. The stopper b provided with a groove h for the reception of the upper portion 10 of the inlet tube b when forced down, the inlet tube being so constructed and arranged that it may close the exhaust passage and prevent the leakage or escape of the medicated liquid from the main receptacle when tipped or inverted, as herein described. 30 Fourth. The band i in combination with the acid vessel embedded in the stopper B, and the inlet tube b9 as and for the purpose set forth. Fifth. The inlet tube b provided with a valve m9 as and for the purpose described.