Improvements in Apparatus for Facilitating the Use of Volatile Substances for Medical Purposes.
Year: 1896

page_text: Date of Application, 30th May, 1896
Complete Specification Left, 25th Feb., 1897-Accepted, 24th Apr., 1897
PROVISIONAL SPECIFICATION.
Improvements in Apparatus for Facilitating the Use of Volatile
Substances for Medical Purposes.
I, Dr. JULES BENGUE of 34 Rue Labruyère Paris in the Republic of France,
Chemist, do hereby declare the nature of this invention to be as follows:-
Chloride of ethyl has been frequently used lately in therapeutics and this is
mainly due to the apparatus which I have invented.
The object of this invention is a new apparatus of a similar kind which will be
of great service inasmuch as it can be opened or closed instantaneously by the
operator with one hand only, while the other hand holds the special instrument for
operating.
In the improved apparatus the liquid passes out through the capillary hole of a
small glass tube protected by a copper sleeve; the liquid flows without interruption
into the said hole and the obstruction of the latter is prevented by the use of a
cotton filter or any substance suitable for filtering the liquid perfectly.
The closing is effected by means of a washer of india-rubber or any other
suitable material, covered with a metallic cap and driven against the mouth of the
capillary hole by a lever acted upon by a spring.
As soon as the cap and the washer are raised, the liquid runs out in a capillary
current and directly the lever bearing the cap is left to itself, the spring at once
closes the apparatus.
The liquid leaves the receiver through a capillary hole bored through a glass rod,
and widened towards the inside in such manner as to form a double funnel, some
cotton or any other filtering substance for preventing the hole from becoming:
obstructed is placed in said funnel.
The rod is introduced into the sleeve of a junction piece and a washer of india-
rubber which becomes flattened between the screw-threaded tubulure of the
receiver and the shoulder of the junction piece, when said junction piece is put in
position, insures tightness round the rod. This arrangement, may be modified in.
its construction without altering the result.
A bent lever is in articulated connexion with the junction piece, an arm of which
lever is provided with a cap or basin in which an india-rubber washer is placed;
the other arm of the lever is connected by a pivot with a vertical rod, the lower
end of which provided with a screw thread bears a cap the position of which may
be regulated and which surmounts a spiral spring fixed in a tube connected with
the receiver.
The bottom of this tube extends horizontally so as to form a wide heel-piece to
admit underneath the thumb of the hand working the apparatus; and on the
vertical rod is fixed a cross bar which acts as a rest for the forefinger and middle
finger of the operator.
When the apparatus is not in use, the spring raises the arm of the bent lever
and presses the washer of india-rubber against the upper end of the glass rod and
the aperture for the outflow of the liquid is thereby closed..
In order to open and work the apparatus, the operator puts his thumb under the
beel-piece and causes a traction upon the vertical rod by placing the fore-finger and
the middle-finger on the cross bar each side of said rod.

page_text: The cap and washer is raised and at once the liquid flows out in a capillary
current. In order to stop the outflow of the liquid, it is sufficient to let go
the cross bar; the spring, by being released, immediately effects the closing
automatically.
The filling up of the receiver is effected preferably through the lower neck and
the closing on that side is insured; by the screw-threaded cap worked by the
lever.
The receiver may be made of, glass, or any metal, and the liquid used with my
apparatus may be chloride of ethyl or any other volatile liquid.
Dated this 30th day of May 1896
HASELTINE, LAKE & Co.,
45 Southampton Buildings, London, W.C., Agents for the Applicant.
Improvements in Apparatus for Facilitating the Use of Volatile
Substances for Medical Purposes.
I, Dr. JULES BENGUE, of 34 Rue Labruyère, Paris, in the Republic of France,
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:-
This invention relates to apparatus for facilitating the use of volatile substances
for medical purposes.
Chloride of ethyl has been frequently used lately in therapeutics and this is
mainly due to the apparatus which I have invented.
The object of this invention is a new apparatus of a similar kind which will be of
great service inasmuch as it can be opened or closed instantaneously by the
operator with one hand only, while the other hand holds the special instrument
for operating.
In the improved apparatus, the liquid passes out through the capillary hole of a
small glass tube protected by a copper sleeve; the liquid flows without interruption
into the said hole and the obstruction of the latter is prevented by the use of a
cotton filter or any substance suitable for filtering the liquid perfectly.
The closing is effected by means of a washer of india-rubber or any other
suitable material, covered with a metallic cap and driven against the mouth of the
capillary hole by a lever acted upon by a spring.
As soon as the cap and the washer are raised, the liquid runs out in a capillary
current and directly the lever bearing the cap is left to itself, the spring at once
closes the apparatus.
In the accompanying drawing I have illustrated an apparatus with a metallic
receiver fixed according to my invention.
Figure 1 is an elevation of the apparatus supposed to be closed.
Figure 2 is a longitudinal section of said apparatus,
Figure 3 shows in perspective to a reduced scale the manner in which the
apparatus is worked with one hand only and
Figure 4 represents a section on a large scale of the junction piece with capillary.
tube through which the liquid runs out.
The liquid leaves the receiver A through a capillary hole o bored through a glass
rod a and widened toward the inside in such manner as to form a double funnel b,
in which is placed some cotton wool or any other filtering substance for
preventing the hole o from becoming obstructed.
The rod a is introduced into the sleeve c of a junction piece D and a washer of

page_text: india-rubber f which becomes flattened between the screw-threaded tubulure g
of the receiver A and the shoulder of the junction piece D, when said junction
piece is put in position, insures tightness round the rod a.
A bent lever is articulated to the apparatus and one arm e of this lever is.
provided with a cap m; in which is placed an india-rubber washer ; the other
arm of the said lever is connected by a pivot with a vertical rud t, the lower end
of which is provided with a screw thread for receiving a screwed cap the position
of which may be regulated and which is acted upon by a spiral spring r arranged.
in a tube t connected with the receiver A.
The bottom of this tube t extends horizontally so as to form a wide heel-piece
against which the thumb of the operators hand rests as shown in Figure 3. On
the vertical rod t is fixed a cross bar h which acts as a rest for the forefinger and
middle finger of the operator's hand, as represented in Figure 3.
When the apparatus is not in use, the spring r raises the arm of the bent.
lever and presses the washer of india-rubber against the upper end of the glass
rod a and the aperture for the outflow of the liquid is thereby closed.
In order to open and work the apparatus, the operator puts his thumb under the
hecl-piece z as shown in Figure 3 and exerts a pressure upon the vertical rod t by
placing the fore-finger and the middle-finger on the cross bar one on each side of
the said rod. The cap m and washer is raised and at once the liquid flows out
in a capillary current. In order to stop the outflow of the liquid, it is sufficient to
let go the cross bar h; the spring by being released immediately effects the.
closing of the apparatus automatically.
The filling up of the receiver A is effected preferably through a hole in the-
lower neck p and the closing of this hole is insured by a screw-threaded cap 7.
worked by the lever q'..
The receiver A may be made of glass or any suitable metal, and the liquid used.
with my apparatus may be chloride of ethyl or any other volatile liquid.
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 an apparatus adapted for the use of chloride of ethyl or other volatile.
substances for therapeutic purposes, the use of a capillary tube suitably gauged
for the discharge of the liquid, this tube being provided with enlargements
arranged in front of its capillary hole, into which enlargements cotton wool or
other appropriate material is placed so as to form a filter and to thus prevent the
capillary hole from being obstructed by ensuring a perfect separation of the
liquid.
2. In an apparatus serving for the use of chloride of ethyl or other volatile.
substances for therapeutical purposes and provided with a sinall glass tube with
filter and capillary hole for the discharge of the liquid-an arrangement, by which
the operator is enabled to work the apparatus with one hand and to instantly open
and close the same, this arrangement comprising a bent lever, pivotally connected
to the apparatus, one arm of which lever carries a cap or washer of indiarubber or
other compressible material stopping the nozzle for the discharge of the liquid,..
while the other lever arm is pivoted to a rod which is directly acted upon by the
handle of the operator and which moreover constantly tends to move upwards..
under the action of a spiral spring, so that an instantaneous closing of the apparatus.
is automatically effected as soon as the operator ceases to act upon the said rod.
Dated this 25th day of February 1907
HASELTINE, LAKE & Co.,
45 Southampton Buildings, London, W.C., Agents for the Applicant..