Improvements in or relating to Clover's Inhaler.
Year: 1893

page_text: COMPLETE SPECIFICATION.
Improvements in or relating to Clover's Inhaler.
I EDWARD CANNY RYALL of St. Marks Hospital, City Road, London, L.R.C.P.
London, 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 invention has for object certain detail improvements and additions to the
inhaler known as Clover's inhaler whereby a reserve quantity or quantities of
ether or other volatile liquid employed for a similar purpose as ether can be kept
within the vessel to be freed for lowing into the usual charge chamber for renewing
or recharging such chamber when desired.
For the purpose of my invention I fit a dome preferably over the usual top of
a Clover inhaler and provide two stoppered apertures one for filling the space
between the two domes with the reserve liquid and the other for closing the
vent and preventing the flow until the stopper is turned when both become open.
The usual vapourizing chamber is closed by a stopper provided with a bayonet
joint fastening and has a sight glass to enable the height of the contained liquid to
be seen.
I make a V or slotted opening in the gas tube which is adjustable in the dome
tube for regulating the admission of air for mixture with the gas when the gas
process is used.
My invention will be clearly understood by an inspection of the annexed
drawings.
Figure is a part sectional elevation of a Clover inhaler with my detail
improvements before referred to.
A is the usual ether vessel with its dome B and C the inner tube. D is my
additional dome secured to the rolled bead E of the dome B and forming a separate
vessel or chamber F.
G is the hole (closable by a plug or stopper) for filling the chamber F, and H is
a turn plug or stopper which has a hole for opening communication by the small
pipe I to the upper chamber F for vent purposes, when any quantity of the reserve
liquid is required in the usual ether vessel, this liquid then flowing through the
aperture J.
I fix a pointer K on the plug H and mark the dome so that one can see whether
the vent is open or closed.
L is a stopper plug to the usual ether chamber A this plug is cylindrically
slotted for taking over pins as a bayonet joint to lock the plug in place and for easy
removal.
The plug is tubular and has an eye glass M in it to enable the height of the
liquid in the vessel A to be seen.
In Figure 2, N is a V slot in the gas tube of a Clover inhaler which can be
more or less opened by withdrawing the tube to determine the amount of air that
shall flow in and mix with the gas escaping from the bag P.
Qis the adjustable mouth piece of a Clover inhaler.
Another improvement is in the filler by which the vessel or vessels can be
charged. The Clover inhaler filler is a plain open ended measure and requires
some skill and a steady hand to pour the ether into the opening whereas by my
improved filler smaller openings than usual can be made as at C the filling being
accomplished from the spout R of the filler S (see Figure 3) which spout
rises in a curve from the meeting edges of the belly S and guard T. By
this arrangement the contents are easily poured out and overflow at the top edge
prevented.

page_text: U is a bayonet joint plug, (instead of the usual screw) for easy removal to
enable the chamber V to be filled with hot water from one of my fillers S when
it is required to evaporate the ether during cold, weather instead of placing the
appliance into hot water to heat the cold water contained in the chamber V as is
usual.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what I
claim is :-
-
1. In conjunction with a Clover inhaler an extra vessel for containing a reserve
charge or charges of ether or other volatile liquid and the means for admitting such
reserve liquid to the usual vapourizing chamber as set forth and substantially as
shown in the annexed drawings.
2. In combination with a Clover inhaler, the stoppered filling hole and the turn
plug.
3. Providing the usual filling hole of a Clover inhaler with a bayonet joint
means of fastening and in conjunction with same an eyeglass for sighting the
contents as described and represented by the annexed drawings.
4. Making a V slot in the gas tube of a Clover inhaler as and for the purpose
explained.
1009
H. GARDNER,
Patent Agent, 166, Fleet Street, London,
Agent for the said Dr. E. C. Ryall.