Improvements relating to Bottles or Receptacles suitable for Containing Ethyl Chloride, and for Supplying the same for Producing Anesthesia.
Year: 1892

page_text: This Print is in accordance with the Original Specification as it stands after
Amendment (under Section 18 of the Patents, &c., Act, 1883), as allowed by
the decision of the Comptroller General of the 28th day of May 1895.
Date of Application, 30th May, 1892
Complete Specification Left, 28th Feb., 1893-Accepted, 27th May, 1893
PROVISIONAL SPECIFICATION.
Improvements relating to
Bottles or Receptacles suitable for
Containing Ethyl Chloride, and for Supplying the same for
Producing Anesthesia.
I, JULES BERNARD BENGUE of No. 2 Rue Caulaincourt, Paris, France, Doctor
and Pharmaceutical Chemist, do hereby declare the nature of this invention to be
BS follows:-
This invention relates to bottles or receptacles suitable for containing ethyl
chloride and for supplying the same for producing anesthesia, the object being to
so close the bottle that the ethyl chloride contained therein can be effectually
preserved therein and that only so much of it as may be required to produce
anesthesia can be easily and accurately withdrawn.
Experiments have been made for producing general anesthesia by the use of
pure ethyl chloride, but the anesthesia though obtained rapidly, does not last
long. It is as a local anesthetic and as an analgesic that ethyl chloride is
particularly useful; consequently it has been found necessary to provide an
apparatus which shall allow of effecting these local operations in a safe and
convenient manner.
A receptacle according to this invention designed to contain ethyl choride, and
to enable one or more local anesthetic operations to be effected, terminates in a
neck, around which a piece of metal is arranged to exactly fit the contour of the
same. The upper part of this enclosing piece of metal, which is on a level with
the top of the glass neck is screw-threaded, and provided with a shoulder just
below the screw thread.
Within the neck of the receptacle is a calibrated capillary tube, through which
a jet of ethyl chloride may be allowed to issue.
On the screw-threaded portion of the enclosing piece, is adapted to be screwed
a metallic cap in the upper part of which is located a washer of caoutchouc or
other suitable material. On screwing the cap down firmly, the packing is pressed
upon the end surface of the neck and consequently closes the capillary tube in a
hermetic manner.
When it is desired to employ the ethyl chloride contained in the receptacle, the
cap is unscrewed, then the receptacle is inclined so as to produce a jet which is
directed upon the part in which anesthesia is to produced, the receptacle being
When the result is
held at a distance of about 15 to 20 centimetres from such part.
effected, the cap is replaced, and the apparatus will then remain ready for the next
aneration.

page_text: The receptacle may be enclosed in a protecting case which may be egg-shaped
and of suitable material such as wood or cardboard,
COMPLETE SPECIFICATION (AMENDED).
Improvements relating to Bottles or Receptacles suitable for
Containing Ethyl Chloride, and for Supplying the same for
Producing Anæthesia.
I, JULES BERNARD BENGUE of 34 Rue Labruyère late of No. 2 Rue Caulaincourt,
Paris, in the Republic of France, Doctor and Pharmaceutical 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:-
My invention has for its object a hermetical stopper for flasks or receptacles
containing chloride of ethyl, by means of which, in combination with a capillary
tube or orifice with which the neck of the receptacle is provided, the chloride of
ethyl may be efficiently preserved and only so much of the liquid used as is
necessary to produce anesthism.
The production of general anesthism by the employment of pure ethyl-chloride
has been attempted; the anesthism is effected rapidly, but is transitory. It is
specially as a local anesthetic and as an analgesic that ethyl-chloride is of medical
service, and consequently an apparatus was to be sought for permitting these local
operations to be effected with certainty and convenience.
The importance will be understood of having a simple and practical method, not
only of being able to preserve the ethyl chloride in a closed flask, but also of using
a certain quantity of this liquid without losing the whole or a portion of what may
remain in the flask or receptacle.
This is the result which I propose to obtain by the application of the hermetical
stopper, the object of my invention, which I describe hereafter with reference to
the accompanying drawing.
.
Figure 1 represents a flask fitted with my hermetical stopper, for containing.
ethyl-chloride and allowing one or more local anesthisms to be effected.
Figure 2 is a section of the apparatus.
Figure 3 represents an external view of the same apparatus, the receptacle having
a tubular shape.
.
Figure 4 shows separately the stopper capsule, Figure 5 the water tight disc
and Figure 6 the metal neck fitted to the glass neck of the flask.
The receptacle a in the shape of a flask (Figures 1 and 2) or of a tube (Figure 3)
is terminated by a neck 6 on which is applied and fixed a metal piece e covering it
exactly. The upper part of the piece c is level with the edge of the glass neck b
and is screw threaded up to a collar d.
The neck of the receptacle is fitted internally with a tube f having a capillary
bore through which is forced the jet of the ethyl-chloride contained in the
flask.
On the threaded part of the cap piece c is fixed a metal capsule g in the bottom
of which is placed a disc h of india rubber or other suitable material. By firmly
screwing down the cap g the disc h is pressed on the end of the neck b, and
consequently forms an absolutely hermetical joint on the capillary jet f1.
When it is desired to use the ethyl chloride contained in the flask the cap g is
unscrewed with the disc h, the flask is then inclined in order to obtain the jet, and
this jet is directed on to the part which it is desired to anasthetise, holding the

page_text: flask at a distance of 15 to 20 centimeters (6 to 8 inches). When the effect is
produced the stopper is replaced and the apparatus is ready for the next
operation.
The flask is contained in a wooden holder x (see the shaded part in Figure 1)
shaped like an egg, which preserves it from breakage and makes it very portable.
The tubular receptacle (Figure 3) is placed in a holder of corresponding shape
made of cardboard or other suitable material.
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 hermetical stoppers for flasks or receptacles for the use of chloride of
ethyl; providing the neck of the flask or receptacle with a glass tube having a
measured capillary bore substantially as described.
2. The arrangement and construction of hermetical stoppers for flasks or
receptacles for the use of chloride of ethyl substantially as described with
reference to the annexed drawing.
Dated this 28th day of February 1893.
WHEATLEY & MACKENZIE,
40 Chancery Lane, London, W.C., Agents.