Year: 1887

page_text: Date of Application, 27th Aug., 1887
Complete Left, 3rd Nov., 1887
Complete Accepted, 27th Jan., 1888
1, STEPHEN FRANCIS SMITH, Physician, Brunswick House, 309 Holloway Road,
London N. do hereby declare the nature of this invention to be as follows:-
This Respirator, made of silver, zinc, or other suitable material or materials,
contains a chamber large enough to hold a piece of sponge, medicated wool, or other
material through which the air is drawn, thus being filtered or medicated before being
breathed. The air in expiration is prevented getting into, or going back through the
chamber holding the sponge, wool, or other material, by the movement of a valve or
ball, but it escapes from the respirator, through another opening made by the move-
ment of another valve or ball. Thus the chamber holding the filtering or medicated
material is not made foul by the return passage through it of the bad impure, and
poisonous air coming from the lungs. This respirator may be made in the usual
shape of respirators placed on the mouth, or in a lengthened tube-shape to be held
between the teeth. The improvement consists in the fact, principally, that the valve
for expiration is protected by an outside covering, forming a part of the respirator,
thus hiding the valve from view.
Dated this 27th day of Anne 1007

page_text: COMPLIM
An Improved Combined Respirator and Inhaler.
I, STEPHEN FRANCIS SMITH, of Brunswick House, 309 Holloway Road, London, N.
Physician 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 :-
This respirator, made of zinc, silver, or other suitable material, or materials,
contains a chamber A large enough to hold a piece of sponge medicated wool, or
other material, through which the air is drawn, thus being filtered or medicated, before
being breathed. The air in expiration is prevented getting into or going back
through the chamber holding the sponge wool or other material by the movement of
a valve or ball B in another chamber. Thus the chamber holding the filtering or
medicated material is not made foul by the return passage through it of the bad
impure and poisonous air coming from the lungs. This respirator may be made of
the usual shape of respirators either for the mouth alone, or covering mouth and
nose, or in a lengthened tube-shape, to be held between the teeth. The front of
the respirator shaped either straight & flat in front, or convex made of metal with
apertures or slits, or of gauze, or other suitable material, is made moveable, either to
be taken off entirely like a cap I-II-III or to be opened out on a hinge; and
when so opened out two compartments are seen separated from each other by a
vertical or longitudinal partition, C. One compartment A is for inspiration, and
holds a sponge S or other material for filtering or medicating the air-The bottom of
the compartment has one or more openings in it. to allow the air to pass into the
mouth On the other side of the bottom next the mouth is a valve or valves which
move towards the mouth in inspiration, but cover over the hole, or holes in the
botton in expiration. The other compartment E, for expiration, has a bottom with
one or more holes in it, covered on the outside, or the side furthest from the mouth,
by one or more valves. The valve or valves move outwards from the mouth in
expiration and allow the air to pass out but close against the bottom in
inspiration.
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 :-
1st Two compartments A and E in the front of a respirator which respirator
may be for the mouth alone, or for mouth & nose separated from each other by a
A
1
or longitudinal

page_text: 2-A cap, or covering, covering both compartments I. II. III.
3-An expiratory valve e. v. or valves working in one of the compartments E, under
the covering in the front of the respirator, 1. 2. 3.
4-A respirator with the above described contrivance. This I especially claim,
an expiratory valve e. v. or valves in the front of the respirator under cover. I make
no claim for a respirator with one compartment in front, covered by a cap, but for a
respirator with the two together; the cap I. II. III. covering both, and the expiratory
valve e. v. or valves in front.
Dated this Second dox of Nam……. n*