An Improved Respirator.
Year: 1889

page_text: Date of Application, 29th July, 1889
Complete Specification Left, 23rd Nov., 1889-Accepted, 4th Jan., 1890
PROVISIONAL SPECIFICATION.
An Improved Respirator.
1 PHILIP BURROWS, of 14 Kinver Road North, Sydenham, in the County of Kent,
Builders general Forman, do hereby declare the nature of this invention to be as
follows:-
Heretofore the respirators as ordinarily made are worn outside the mouth, thus
preventing the person wearing it from talking or opening the lips freely, it is also
unsightly and uncomfortable.
Now by my invention I provide a respirator to be worn inside the month without
interfering to any great extent with the comfort of the wearer, and which is so
arranged as to be quite out of sight when the lips are closed and of which but little
can be seen when the lips are partially opened to admit air or for the purpose of
speech.
In carrying out my invention I form a frame, mould or case following the contour
of the jaws or teeth, and of such shape sectionally as to receive the teeth or gums on
which the apparatus is fixed or rests.
I prefer to form the apparatus of thin gold plate which is so bent as to receive the
teeth or gums of the upper and lower jaw, and also so as to form a chamber or cavity
behind the said teeth or gums into which the air is drawn in the act of breathing
through the space left between the upper and lower jaw. I fit or fix into this cavity
gauze, folded or arranged in any desirable manner-or other material may be substi-
tuted through which the air passes before entering the mouth. The back of the
chamber or cavity is perforated with holes or slots.
1 may if desired construct my apparatus in two parts with suitable hinges
and springs by means of which the jaws may be more freely opened and closed.
Dated this 29th July 1889.
POPPLEWELL & Co.,
17 & 18, Southampton Buildings, W.C., Agents for the Applicant.
COMPLETE SPECIFICATION.
An Improved Respirator.
I PHILIP BURROWS of 14 Kinver Road North Sydenham in the County of Kent.
Builders Foreman 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 :—
The respirator in ordinary use is worn outside the mouth, preventing the wearer
from talking or opening the lips freely it is also unsightly and uncomfortable.
Now by my invention I provide a respirator to be worn inside the mouth without
interfering to any great extent with the comfort of the wearer and which is so
arranged as to be quite out of sight when the lips are closed and of which little
can be seen when the lips are partially opened to admit air or for the purpose of
speech.
In carrying out my invention I form a frame mould or case following the contour
of the front of the jaws or teeth and of such shape sectionally as to receive the teeth
or gums on which the apparatus rests.
I prefer to form my improved respirator of thin gold or other plate which is so
bent as to receive the teeth or guns of the upper and lower jaw and also bent or
formed so as to form a cavity or chamber behind the said teeth or gums into which
chamber or cavity the air is drawn in the act of breathing through the space left

page_text: between the upper and lower jaws as will be readily seen on reference to the
drawings.
1 fix or fit into this cavity gauze folded or arranged in any desirable manner
or other material may be substituted through which the air passes before entering
the mouth.
The back of the chamber or cavity is perforated with holes or slots.
Referring to the accompanying drawings and to the Figures and letters of reference
marked thereon
Figure 1 is a perspective view of my improved respirator.
Figure 2 is an enlarged section on line a― Figure 1.
Figure 3 shews the respirator in use.
Figure 4 is a plan of my improved respirator.
A and A' are the extensions that fit between the teeth and lips, B is the cavity or
chamber provided if desired with a lid C for removing or replacing of the rolled or
folded gauze or other material D. The back of this chamber or cavity is perforated
as shewn.
When the respirator is to be used it is simply placed in the mouth and the teeth
closed on to the parts e¹ el.
Suitable hinges and springs may if desired be arranged so that the jaws may be
more freely opened and closed.
Having now particularly describod and ascertained the nature of my said
invention and in what manner the same I declare that what I claim is :
FirstA respirator adapted to be held in the inside of the mouth instead of outside
as heretofore and provided with a perforated cavity or chamber filled with gauze or
any other suitable filtering purifying or antiseptic material through which the air is
drawn thus being warmed and purified before reaching the lungs, substantially as
herein described and illustrated by the accompanying drawings.
Second-In combination with a respirator such as hereinbefore described of a
lid for the purpose of removing or replacing the gauze or other filtering or anticeptic
material substantially as described.
Third The general arrangement and construction of parts constituting my
improved respirator substantially as herein before described and illustrated in the
accompanying drawings.
Dated this 22nd day of November 1889.
POPPLEWELL & Co.,
17 & 18, Southampton Buildings, London, W.C., Agents for the Applicant.