Year: 1888

page_text: Date of Application, 3rd July, 1888
Complete Specification Left, 13th Aug., 1888
Complete Specification Accepted, 14th Sept., 1888
I, KHURSED MANEKII TATA of Narsari, near Bombay, India, at present residing at
Glendower Hotel, 17 Harrington Road South Kensington in the County of Middlesex
Merchant, do hereby declare the nature of this invention to be as follows:-
The object of this invention is to indicate the respirations of the body.
The invention consists of a bent curved or straight metal, glass, or other tube one
end of which is widened and if desired provided with a partition and the other end is
provided with a membraneous diaphragm. A thermometer may if desired be attached
to the tube, the glass bulb being in contact with the air inside the tube.
The widened end of the tube is placed over or about the nostrils of the invalid or
other person whose respirations will agitate the diaphragm the pulsations of which
can be counted. The thermometer if attached will also indicate the temperature of the
respirations and will therefore give a correct indication of the temperature of
the body.
If desired the diaphragm may be placed in the interior of the tube and attached
by suitable mechanism to the pointer of a dial graduated so as to indicate the strength
or register the number of respirations.
Or the needle or pointer may be attached to the diaphragm longitudinally of the
tube and the tube provided with rings so that the longitudinal travel of the needle or
pointer may be easily read off.
To either form a pencil may if desired be attached to the needle and the movement
thereof traced upon a sheet of paper or other substance.
CASTLE SMITH,
Per F. W. G.,
"Invention" Office,
54, Fleet Street, London, E.C.,
Agent for the Applicant.

page_text: COMPLETE SPECIFICATION.
An Apparatus for Indicating the Respirations of the Body.
1, Khubsen ManeRJI TATA of Narsari near Bombay, India, temporarilly residing
at Glendower Hotel 17 Harrington Road South Kensington, in the County of
Middlesex, Merchant, 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 object of this invention is to indicate the respirations of the body by placing
one end of a tube over the nose or mouth of the person whose respiration are to
be measured or recorded, the other end of the said tube being provided with a
valve, su constructed as to be susceptible to slight movements of the air or with
a membraneous or other diaphragin, or with any other substance or hody to
which light breathing will impart motion. This valve, diaphragm or other body
carries a needle or pointer for the purpose of indicating, measuring or recording
the number or strength of the respirations.
The invention will be well understood by reference to the accompanying drawings
which illustrate different forms of the invention and how the same may be practically
carried into effect. In all the figures the same letters of reference are used to
indicate the same or corresponding parts where they occur.
Figure 1 is an elevation of one form of my invention.
Figure 2 is a plan of the same, part of the mechanism being omitted for the sake of
clearness, and,
Figure 3 is a part elevation showing the valve
open.
The tube is made in one or more parts and of any suitable shape or material,
in figure 1 the tube consists of a central part A made of india rubber or other
olastic material with a widened end piece of papier mache caoutchouc or similar
substance which is not cold to the touch provided with a nose piece C proforably
screwed thereon, so that it may be unscrowed and a mouth piece substituted when
required. The other end of the elastic tube A is attached to a metal tube D
from which opens a short tube E carrying a valve F on a suitable seating.
When the instrument is in position the tubo D will be horizontal and the
tube E vertical as shewn, so that the weight of the valve F will keep it closed
until the breath acts upon the underside thereof when it will be opened as shown
in figure 8.
The central elastic tube A is attached by simply stratching it over the ends
of B and 1 in the ordinary manner, or suitable screw collars may be fitted upon
its ends and screwed over or into the ends of B and D which are provided with
screw threads for this purpose if desired, the different parts of the tube being so
mado that the tube may be shortened when necessary.
The valve carries a bent needle G loosely pivotted thereto, the end of which
punctures small holes in a travelling strip of paper H or the end of the needle C

page_text: may be blunted so as to brace a line upon the travelling paper which is previously
smoked or otherwise prepared so as to shew delicate bracings thereon (see Figure 2).
As the valve opens and closes the end of the needle will travel across the width of
the paper, whilst the paper is travelling longitudinally under the needle so that an
irregular line will he traced upon the paper as shewn in Figure 2.
The paper H. passes between a roller J and a spindle K carrying two friction
rollers K1 or K may be a friction roller itself if desired, kept against the roller J by
the spring L attached to the case M which carries the mechanism for revolving
the roller J. This mechanism forms no part of my invention, and consists simply
of an ordinary train of wheels and a mainspring actuated by any suitable winding
apparatus O and provided with a stop N. The paper H is made of just sufficient
length to pass through the rollers in a given time, say, for example one minute, or
a length of paper may be used with divisions thereon, corresponding to the time
which it will take to pass through the rollers say into one minute or half minute
divisions, so that the apparatus may be in use for any time and the respirations in,
say one minute compared with those of any other minute and so on.
Where it is not required to take a tracing of the respirations, the apparatos may
be constructed without the mechanism and tracing needle or the mechanisin and
tracing needle may be detached by unscrewing or otherwise from the case M and the
valve or seating made of some resonant material or provided with an abutting pin so
that a sound will be emitted each time the valve falls, and the eyes of the Physician
or other person may be fixed upon a watch or clock.
The above described apparatus is suitable for indicating the number of expirations
in any given time, and their strength will be seen by the distance which the tracing
shews the needle to have travelled transversely, but since the valve falls by its own
weight, no indication of the inspirations will be given.
Figure 4 shews another form of my invention designed to indicate both the
expirations and inspirations.
The tube is closed by means of a bag-shaped diaphragm F of any suitable
material which will be alternately blown out of and drawn into the tube E. This
diaphragm has a needle G1 passing through its centre to which the bent tracing
needle & is loosely pivotted. In using this form of my invention it is advisable to
place the apparatus so that the tube E is horizontal; and for this purpose the
winding device O is placed so that the case M may stand upon the side 'm when
desired.
Figures 5 and 6 shew modifications of my invention.
In figure 5 the valve or diaphragm is replaced by a piston F 2 sliding within a
cylinder P. the tracing needle being attached to the piston rod F 1.
In figure 6, the valve or diaphragm is replaced by an open cylinder P with a
sliding cover G 1 to which the tracing needle G is attached.
Figure 7 shews a simple and cheaper form of my invention in which the mechanism
is dispensed with.
In this modification the tube D is made of glass with any number of graduated
rings D1 thereon. A bag shaped diaphragm F is fixed transversely within the tube
and has a needle G 1, passing through its centre. The longitudinal travel of the
needle within the tube D as it is alternately blown out and drawn in by the
respirations will indicate the strength of the respirations and their number can be
counted.
In the section shewn in figure 8 a Thermometer Q is placed in the tube, the bulb
being in contact with the air inside the tube so that the temperature of the breath
may be read off from the outside of the tube. The Thermometer may be placed in
any suitable part of the tube through which the breath passes and may or may not
be used as found desirable. The screw thread R is also shewn on to which the nose
or mouth piece C may be screwed.
Figures 9, 10, and 11 shew respectively front back and side views of a suitable
nose piece, and figure 12 shews a front view of a suitable mouth piece for use with
my invention.

page_text: A pencil point may be attached to the end of the indicating needle, and made to
trace upon the travelling paper, in lien of using the specially prepared paper hereinbefore
described.
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) The tube with nose or mouth piece and valve F carrying needle G transversely
across a travelling strip of paper H all combined and operating, substantially as and
for the purpose herein before set forth and illustrated in Figures 1, 2 and 3.
(2) The tube with nose or mouth piece thermometer Qand valve F carrying needle G
transversely across a travelling strip of paper H, all combined and operating sub-
stantially as and for the purpose hereinbefore set forth and illustrated in Figures 1,
2, 3 and 8.
(3) The tube with nose or mouthpiece and valve F part of which or of its seating
is made of some resonant material and with or without a thermometer. substantially
as and for the purpose hereinbefore describoil.
(4) The bag shaped diaphragm F 1 carrying needle (1 through its centro with
tracing needle G affixed thereto in combination with the mechanism described in
claim 1 or 2, substantially as and for the purpose hereinbefore set forth and illustrated
in Figure 4.
(5) The cylinder P with piston F 2 with piston rod F1 carrying tracing needle G
in combination with mechanism described in claim 1 or 2 substantially as and for the
purpose hereinbefore set forth and illustrated in figure 5.
(6) The open cylinder P with sliding cover (1 carrying the tracing needle G in
combination with mechanism described in claim 1 and 2 substantially as and for the
purpose hereinbefore set forth and illustrated in figure 6.
(7) The partly glass tube with graduations DI and nose or mouth piece and bag
shaped diaphragm F 1 carrying needle G 1 longitudinally substantially as and for the
purpose hereinbefore set forth and illustrated in figure 7.
Datel th: 1000