Improvements in Stop Cocks or Distributing Valves for Gas and other Inhalers.
Year: 1893

page_text: Date of Application, 29th Aug., 1893-Accepted, 7th Oct., 1893
COMPLETE SPECIFICATION.
Improvements in Stop Cocks or Distributing Valves for Gas and
other Inhalers.
I SYDNEY RUMBOLL of Hope Villa Woodhouse Lane Leeds in the County of
York Surgeon 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 refers to stop cock or distributing valve arrangements of apparatus
for inhaling gas, ether and the like, with or without admixture with air; and has
more especially for its object, to enable the gas to be introduced into and exhaled
from one and the same orifice in the gas bag; instead of the introduction and
withdrawal taking place at separate orifices (generally at opposite ends of the gas
bag) as is at present usual. This renders the whole apparatus lighter, more
compact and portable.
And in order that my invention and the manner in which the same is to be
performed may be more readily and clearly understood, I have annexed hereto the
accompanying sheet of drawings of a stop cock and distributing valve constructed
in accordance with my invention.
Fig. 1 is a plan, and
Fig. 2 a side elevation; whilst
Figs. 3, 4, and 5 are horizontal sections shewing the plug piece of the cock or
valve in different positions.
The following description for the sake of illustration and clearness refers to my
improved stop cock or distributing valve used in connection with the gas and ether
inhaler described in the Specification of Letters Patent No. 13815 of 1892.
The stop cock or distributing valve consists of an outer case a having three
projecting tube pieces; viz. :- a gas generator or supply socket b, to which the
flexible tube from the gas generator or supply is attached, an expiring or exhaust
and a socket piece d for the gas bag socket. The expiring or exhaust tube c
is provided with a rubber or other valve to prevent the exhaust being re-inhaled.
g is a cap piece fitting over the exhaust tube, and suitably provided with holes to
render the exhaust noiseless.
tube
C9
The gas bag socket piece d is divided by a diaphragm h, each passage in the
One
socket piece having a separate opening (i and k) in the side of the casing a.
of these passages is provided with a check valve 1, which for the sake of renewal
or cleaning is made removable.
The casing a is further provided with an air inlet m. n is the socket piece for
attaching the stop cock to the ether apparatus, (see drawings to Specification
No. 13815 of 1892), or directly to the face piece, when used for the administration
of gas alone.
o is the cylindrical plug or valve, provided with three openings p, q and r; the
former p being separated or cut-off from the interior of the plug by the vertical
diaphragms and top and bottom (t) sector shaped diaphragms. The handle u,
screwed into the plug o and moving in a horizontal slot in the casing a, serves to
rotate the plug, so as to place the same in any of the three positions shewn in
Figs. 3, 4 and 5.
With the plug in the position shewn in Fig. 3 the patient inhales only air
entering through the openings m and r, whilst gas from the gas generator or supply
enters from the socket b, and passes through the openings p, k, into the
gas bag.
On turning the handle further round, the plug is brought into the position shewn
in Fig. 4. The air inlet m is now closed, gas still enters from the gas supply into
the gas bag, but the opening i is now placed in communication with the interior of
1

page_text: the stop cock, and the patient commences to inhale gas and to expire through the
opening and the valve f.
On moving the handle so as to bring the plug into the position shewn in Fig. 5,
the gas is cut off from the gas supply by the diaphragm s, and the patient inhales
only ether, supposing the ether apparatus inserted between the socket n and the
face piece.
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. In stop cocks or distributing valves for gas or other inhalers, the combination
of an outer casing such as a having a gas inlet piece band a gas bag socket piece
such as d the latter being provided with a diaphragm such as h forming two
separate passages in said socket piece, with a plug such as o having a diaphragm
such as s substantially as herein set forth.
2. In stop cocks or distributing valves for gas or other inhalers, the use of a gas
bag socket piece having a diaphragm and separate openings on each side of the
diaphragm into the stop cock or valve casing, whereby gas can be introduced and
withdrawn through one and the same opening to and from the gas bag.
3. In stop cocks or distributing valves for gas or other inhalers, the combination
of a plug having an internal diaphragm with a gas bag socket piece having a
diaphragm forming two separate passages in said socket for the purpose or purposes
herein set forth.
4. A stop cock or distributing valve for gas or other inhalers substantially as
herein set forth and illustrated in the accompanying drawings.
with a
5. The combination of a cylindrical or conical casing such as a, provided with a
gas supply socket b, a divided or partitioned gas bag socket piece d and corre-
sponding inlet openings and i and air inlet and exhaust openings m and
hollow cylindrical or conical plug such as e having three openings p, 1 and r, the
former (p) separated from the latter (q and r) and from the interior of the plug by
a diaphragm (or diaphragms) s, t, substantially as and for the purposes herein set
forth.
Dated this 28th day of August 1893.
J. CLARK JEFFERSON,
2, East Parade, Leeds, Agent for Applicant.