US42721A - Improvement in apparatus for inhaling gas - Google Patents

Description

UNITED STATES PATENT OFFICE.

SIMEON W. ALBEE, OF CHARLESTOWN, NEW HAMPSHIRE, ASSIGNOR TO HIMSELF, AND HENRY HODSON, OF GHARLESTOWN, MASSAUHUSE'ITS.

Specification forming part ot' Letters Patent No. 42,72 l, dated May 10, 18('4.

To all whom, it may concern.'

Be it known that I, SIMEoN W. ALBEE, a resident of Charlestown, in the county ot' Sullivan and State of New Hampshire, have invented an Improved Apparatus for the In hal-ation of Nitrous Oxide or other Gas or Vapor; and I do hereby declare the same to be fully described in the following` specication and represented in the accompanying draw ings, of which- Figure l denotes aside elevation, and Fig. 2 a vertical and longitudinal section ot' it. Fig. 3A is an end view ofthe mouth-tube.

The nature ot' my invention consists in the combination of an elastic inflexible mouthcushion with a mouth tube or conduit and its valve or valves, as described; also, in a peculiar combination and arrangement of valves, valve seats, and valve stein, with the mouth-tube and valve-case arranged as specitied.

In the drawings, A denotes t-he valvecase, which is cylindrical and tubular, and formed so that its lower end maybe titted 1n and fastened to the mouth of a gas bag or a con'- duit leading therefrom or from a gasreservoir. Within the said valve-case are two valveseats, a b, through openings et' which a valvestem, c, extends and is furnished with two valves, d e, the upper of which (viz., that marked d) being above the seat a, while the lower (or that marked e) is below the stat b. The two valves are also so arranged that when either may be closed against its seat the other will be ott' its seat. Furthermore, there is a spring,f, arranged on that part of the stem c which projects below the valve c, the said spring being made to rest on a stationary cross-bar, g, and to operate so as to force the valvestem upward and close the lower valve against its seat. The valve-stem is to be surmounted b v a button or head, h.

A tubular conic t'rustum or mouth-tube, B, is joined at its smaller end to the valve-case, and projects at right angles thereto and opens into it between the two valve seats a and l), the whole being as shown in Figs. l and 2. ll`he larger end ot' this mouthtube is provided with a elastic intlatable mouth-piece or cushion, C, ma e of vulcanized caoutchouc or other suitable air-tight material. This cushion is annular in shape and formed to go around the mouth or about the mouth and across the nose of a person, and to t closely to the external surfaces thereof when pressed l against the same, the object of the cushion being to make a closejoint about the mouth or breathing-orices of the nose and mouth, in order that a person using the apparatus may be able to inhale and exhale a gas through it. g

lhe elastic cushion should Vbe provided with a nozzle, i, having a suitable screw-cap (or its equivalent) t'or closing such nozzle and for enabling air-to be blown through the nozzle and into the cushion, or be expelled from the cushion, as circumstances may require.

In using thel apparatus when coupled to a gas-bag or gasometer containing nitrous-oxide gas, the operator is to apply the cushion U to the tace and mouth ot' the person or patient to whom the gas is to be administered, the operator at the same time holding the apparatus in one hand by the part A, and having the index-finger ot' such hand placed on the top of the button or head h of the valve-stem. Under these circumstances the valve d will be open and the valve e will be closed, so that no gas can escape from the bag, the patient in the meanwhile breathing or inhaling` and exhaling common atn'iospheric air, which he will do through the opening of the valve-seat a. After a short time, and when the patient may have become accustomed to the apparatos, so as to breathe naturally through it, the operator is to quietly press downwai d the valve-stem so as to close the valve d down upon its seat a, and open the valve e, or press it away from its seat b, which having been done the gas will pass into the valve-case and from thence be drawn through the mouthtube B and into the lungs of the patient.

It' desirable, a mixture of air and gas may be breathed by the patient, such being accom plished by slightly depressing the valve-stem, so as to cause both ot' its valves to be open.

I claim as my invention- 1. rIhe combination ofthe elastic inatable moutltcushion C with the mouth-tube or conduit B, and its valvecase A, provided with valves or a valve apparatus, as described.

2. The combination and arrangement ot` the two valves, valve-seats, and valve stem together, and with the valve-case and a mouthtube arranged as described.

SIMEON W. ALBEE.

Witnesses:

E. L. CUsHING, J. PORTER.

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