Improvement in Respirators and Inhalers.
Year: 1893

page_text: Date of Application, 29th Mar., 1893
Complete Specification Left, 29th Dec., 1893-Accepted, 24th Mar.,
1894
Improvement in Respirators and Inhalers.
I, LEO KAMM of 1 Laburnum Villas, Gresley Road Highgate, in the County
of London Electrician do hereby declare the nature of this invention to be as
follows:-
My invention relates to an improvement in respirators and inhalers, for the
purpose of enabling the user to breathe purified air.
According to my invention, I provide a chamber, seperated into two by a longi-
tudinal or lateral partition and covered with a perforated lid. Each chamber is
provided with a valve one opening inside to admit the air which has passed through
a purifying substance contained inside the chamber, the other valve opening
outward, to emit the air from the lungs.
COMPLETE SPECIFICATION.
Improvement in Respirators and Inhalers.
I, LEO KAMM, Electrician, of 1 Gresley Road, Hornsey Lane, London N
do hereby declare the nature of this invention and in what manner the same is
to be performed, to be particularly described and ascertained in and by the following
statement:-
My invention relates to an improved and antiseptic respirator and inhaler by
means of which the user is supplied with fresh air during respiration and the
expired air with its carbon dioxide (CO2) is not inhaled a second time.
Fig. I. to the inside, shows the inspiratory valve D.
Fig. II shows a side view.
Fig. III is a sectional view.
View to show the same respirator with a nasal piece by which addition the said
respirator may be used as an inhaler is omited.
For convenience of description I shall tabulate my invention into three divisions.
I a detachable lid or anterior portion A.
II a middle or valvular portion (between the dotted lines F. G. Fig. III.
III a posterior or oral portion.
I shall now describe each of these sections more minutely.
1. The anterior portion or detachable lid is slightly convex anteriorly and is
provided with necessary holes arranged upon each lateral half and bearing an
unperforated portion in the centre. The said lid is made to fit the middle portion
(between the dotted lines F. G. Fig. III.) and is retained in position by a suitable
shoulder or the middle piece. When the lid is fixed the small projecting portion
(C Fig. III.) divides the space left between it, and the middle piece into two
seperate chambers. In one of these chambers is placed some cotton wool through
which the inspired air has to pass before entering the lungs; the other chamber
allowing a free passage for the exhaled air.
11. The middle or valvular portion (between the dotted lines F. and G.) is also
perforated on each lateral half B. and on each half is fixed a valve D and E which
is made to cover the perforations. The said valves (D & E) are internal D. and
external E). The internal D is the inspiratory; the external E is the expiratory
IP 71

page_text: valve. Each of the mentioned valves (D. & E) are circular and are fixed either
on the periphery or in the centre, in the latter case a small series of holes is placed
near the central fixing pin (H Fig. 1) by which latter arrangement a greater
freedom of action is allowed at the periphery of each of the said valves and by
this means a free ingress and egress of air is accomplished during respiration.
III. The posterior or oral portion J surrounds the mouth and is held in position
by suitable elastic or other bands; when the said respirator is used as an inhaler
a suitable nasal piece is attached to this oral portion by which means the whole of
the external respiratory organs is covered.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is :
1. A respirator with an inspiratory and expiratory valves connected with two
chambers each of which are formed by a portion between the anterior and middle
portion substantially as described.
2. A respirator with detachable lid under which are two valves, the one external
the other internal substantially as described.
3. A respirator with an inspiratory and an expiratory valve made of suitable
material, either of which may be peripherely or centraly fixed, in the latter case a
series of holes are placed near the central pin substantially as described.
Dated this 29th day of December in the year 1893.
LEO KAMM.