Improved apparatus for enabling a person to breath fresh air while surrounded with a poisonous or noxious atmosphere, more esecially for use in saving miners from being suffocated by choke damp or after damp / [Charles Addison Ash].

  • Ash, Charles Addison.
Date:
1894
Catalogue details

Licence: Public Domain Mark

Credit: Improved apparatus for enabling a person to breath fresh air while surrounded with a poisonous or noxious atmosphere, more esecially for use in saving miners from being suffocated by choke damp or after damp / [Charles Addison Ash]. Source: Wellcome Collection.

    1/6
    N° 13,982 A.D. 1893 Date of Application, 19th July, 1893 romplete Specification Left, 18th Apr.. 1894—Accepted, 19th M^y, 1894 PROVISIONAL SPECIFICATION. Improved Apparatus for Enabling’ a Person to Breathe Fresh Air while Surrounded with a Poisonous or Noxious Atmosphere, more especially for Use in Saving- Miners from being’ Suffocated by Choke Damp or After Damp. I, Charles Addison Ash, of Meretown, Newport in the County of Salop, Agricultural Engineer, do hereby declare the nature of this invention to be as follows : — This invention has for its object a simple and convenient apparatus, which may 5 be readily and expeditiously put into use, by means of which any person may safely pass through, or remain a considerable time in, a poisonous or noxious atmosphere. The apparatus is, however, specially designed for the purpose of saving life in mines by enabling the miners to live whilst surrounded by choke damp or after clamp resulting from an explosion. 10 An apparatus constructed according to this invention consists of a hood which is passed completely over the head and which fits around the neck, and of a portable air supply reservoir having a connection with the hood and a valve by which communication may be opened between the reservoir and the hood. The hood is conveniently formed of indiarubber or other soft material made sufficiently 15 air tight for the purpose, and is formed with an opening at the bottom which is stretched to allow of the passage of the head therethrough and which then closes again around the neck. A pair of glass eye-pieces, or a single piece of glass, is fitted into the 1’ront of the hood through which the person using the apparatus can see his way. The reservoir is conveniently made of strong elastic tubing, such 20 for instance as the tubing used for pneumatic tyres, coiled into a spiral form leaving an opening through the middle through which the arm of the person using the apparatus may be passed for facility in carrying the reservoir. The reservoir is kept permanently inflated with air so that it may be used at a moment’s notice. A person requiring to use the apparatus can slip the hood over his head almost as 25 quickly as putting on his hat, and immediately he turns on the valve and opens the connection between the reservoir and the hood he is supplied with fresh air in any quantity he requires. The hood may be fitted with a valve which opens outwards through which the foul air breathed out from the lungs can escape. Dated this 18th day of July 1893. 30 STEPHEN WATKINS, Wolverhampton, Agent for the Applicant. COMPLETE SPECIFICATION. Improved Apparatus for Enabling a Person to Breathe Fresh Air while Surrounded with a Poisonous or Noxious Atmosphere, 35 more especially for Use in Saving Miners from being Suffocated by Choke Damp or After Damp. I, Charles Addison Ash, of Meretown, Newport in the County of Salop, Agricultural Engineer, do hereby declare the nature of this invention and in what manner the same is to be performed, to be particularly described and ascertained 40 in and by the following statement This invention has for its object a simple and convenient apparatus, which may [ I'nce 8//. |