Specification of James Carrick : respiratory and inhaling apparatus.

  • Carrick, James.
Date:
1874
Catalogue details

Licence: Public Domain Mark

Credit: Specification of James Carrick : respiratory and inhaling apparatus. Source: Wellcome Collection.

    5/20 (page 3)
    Specification. A.D. 1874.—N° 1501. 3 Garrick's Improvements in Respiratory and Inhaling Apparatus. The method of using and the action of this respirator are as follows : — The case covered with the filtering medium is worn upon the body outside the clothes of the user, and the mouth-piece, which is connected by the flexible tube to the said case, is placed between the lips. The 5 air inspired is drawn through the filtering medium and thereby purified, it then passes to the air chamber aforesaid through the inlet valve, and thence through the tube to the mouth of the user. On the air being expired it passes back into the said chamber and thence through the outlet valve into the external air, the inlet valve closing and thereby 10 preserving the respirator from contact with the vitiated air. My Invention further consists of the combined inhaling and respi- ratory apparatus, which is more especially designed to warm and to medicate the air to be inspired, and which (like the preceding appa¬ ratus) is to be worn upon the body, but under the clothes, and is con- 15 structed as herein-after described. This apparatus consists of a sheet- metal case divided by a perforated diaphragm into two compartments. In one of these is inserted, through an aperture in the diaphragm, felt, wool, or other absorbent, saturated or impregnated with any medicinal matter with which it is wished to impregnate the air to 20 be inhaled. This compartment communicates with an air chamber (furnished with inlet and outlet valves) similar to that lierein-before described with reference to the respirator, constituting the first part of my Invention, which chamber also is provided with a flexible tube terminating in a mouth-piece. In the other compartment, which is 25 closed by a door of perforated sheet metal, felt, or flannel, or other suitable filtering medium is placed and secured so as to constitute the respirator, which may, if desired, be kept moist by water contained in a receptacle formed at the lower part of the compartment occupied by the said filtering medium. At each inspiration of the user air enters 30 the respirator through the perforations in the door thereof, and thence passes through the felt or flannel or other filtering medium through the perforations in the diaphragm, and thence through the medicated medium placed in the inner compartment of the inhaler, where it is impregnated with the medicinal matter used, and from which it passes ,35 through the air chamber and tube, as in the respirator last described; the said air being warmed in its passage by the animal heat of the person using it. In both the foregoing arrangements, instead of placing the inlet and