Smoke or Foul Air Mask, for enabling persons to Breathe in Poisonous Atmospheres.
Year: 1897

page_text: Date of Application, 20th May, 1897
Complete Specification Left, 19th Feb., 1898-Accepted, 23rd Apr., 1898
PROVISIONAL SPECIFICATION.
Smoke or Foul Air Mask, for enabling persons to Breathe in
Poisonous Atmospheres.
ROBERT DOWLING, Chemist, 14, King's Road, Reading, do hereby declare the
nature of this invention to be as follows:-
A mask for the face by means of which persons will be able to enter places full
of smoke or foul air; will have tubes attached by means of which the person will
be able to breathe.
Smoke or Foul Air Mask, for enabling persons to Breathe in
Poisonous Atmospheres.
I, ROBERT DOWLING, 14, King's Road, Reading, Chemist, 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:.
A mask for the face by means of which persons will be able to enter places full
of smoke or foul air, will have tubes attached by means of which the person will
be able to breathe.
In order that my invention may be fully understood, I will now refer to the
annexed drawings:-
Figure 1 is a front view of my mask.
Figure 2 view of inside.
Figure 3 plan view.
Figure 4 side elevation.
Figure 5 sectional side elevation shewing mask in position.
The mask a consists of a casing which may be of metal or other suitable
substance, and is shaped and padded at 6 so as to fit the face of the wearer and is
provided with the tapes or strings c by which it may be attached and secured in
position. d is a surface of glass or other transparent material to enable the
wearer to see. e is a valve which is so arranged as to permit the exit of air from
the mask but does not allow any to enter. f is a perforated tube which may be
covered with any suitable absorbent material for carrying the antiseptic and the
like and may be so arranged as to condense any impurities or absorb obnoxious-
gases. This tube f is in communication with a pump g so arranged that it may
be operated by the wearer as required.

page_text: The padding is of any suitable material and is arranged so as to render the
junction with the face as air-tight as possible and also to isolate the eyes from
the air in the mask. The tapes or strings are secured around the head of the
wearer and fastened in any suitable manner by means of the peg h or clip i.
By this means the wearer can pump a certain amount of air into the mask as
required, and the used air is thus expelled through the escape valve e.
Although for purposes of illustration I have described a particular construction,
it will be readily seen that there are various details which may be varied without
departing from the principle of my invention.
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 mask for enabling persons to breathe in poisonous atmospheres sub-
stantially as described and illustrated herein.
2. A mask consisting of a casing of suitable material, having a transparent
surface to enable the wearer to see, and being provided with padding for fitting
the face of the wearer so arranged as to prevent foul air or gases coming into
contact with the eyes; a tube in connection with a suitable pump and carrying
an antiseptic material for the absorption of obnoxious gases or fumes; a valve
for the outlet of surplus or used air; tapes or cords for securing the device on
the head of the wearer.
Dated this 19th day of February 1898.