An Improved Apparatus for Vaporising or Fumigating Purposes.
Year: 1897

page_text: Date of Application, 10th Mar., 1897
Complete Specification Left 19th Nov 1897 Accepted 26th Feb.. 1898
Date of Application, foln Mal., 199
Complete Specification Left 19th Nov 1897-Accented. 26th Feb.. 1898
PROVISIONAL SPECIFICATION.
An Improved Apparatus for Vaporising or Fumigating Purposes.
ISAAC SHIMWELL MCDOUGALL, of No. 68, Port Street, Manchester, and JAMES
THOMAS MCDOUGALL, of No. 10, Mark Lane, London, trading as McDougall
Brothers, Manufacturing Chemists, do hereby declare the nature of this invention
to be as follows:
-
The object of this invention is to produce an improved apparatus for use as a
vaporiser, so constructed that its use shall be more convenient and less dangerous
than the lamps burning methylated or other spirit hitherto used for vaporising.
Also our apparatus is so constructed that the fuel necessary to generate the heat,
and the substance to be-vaporised, shall be contained in distinct compartments of
the apparatus so that it can be conveyed already charged and ready for use
with safety, as well as with a large saving in time and trouble when the vaporisa-
tion takes place.
To effect this we construct our apparatus of tinned sheet iron or other suitable
material in two portions joined together one above the other by suitable support.
Into the upper portion we place the substance (liquid or solid or mixture of same)
to be vaporised, and into the lower portion we place the fuel from which the heat
required in the process is to be generated.
Dated this 11th day of March 1907.
ISAAC SHIMWELL MCDOUGALL.
JAMES T. MCDOUGALL.
An Improved Apparatus for Vaporising or Fumigating Purposes.
ISAAC SHIMWELL MCDOUGALL., of No. 68, Port Street, Manchester, and JAMES
THOMAS MCDOUGALL, of No. 10, Mark Lane, London, trading as McDougall
Brothers, Manufacturing Chemists, 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 produce an improved apparatus for use as
a vaporiser, so constructed that its use shall be more convenient and less
dangerous than the lamps burning methylated or other spirit hitherto used for
vaporising. Also our apparatus is so constructed that the fuel necessary to
generate the heat, and the substance to be vaporised, shall be contained in distinct
compartments of the apparatus_so that it can be conveyed already charged and
ready for use with safety, as well as with a large saving in time and trouble when
the vaporisation takes place. To effect this we construct our apparatus of tinned

page_text: sheet iron or other suitable material in two portions joined together one above
the other by suitable support. Into the upper portion we place the substance
(liquid or solid or mixture of same) to be vaporised, and into the lower portion we
place the fuel from which the heat required in the process is to be generated.
This fuel is of such a nature as to be safely portable within the apparatus-such ō
as stearines, wax (paraffin or otherwise) or suitable mixture of the same, with or
without the addition of oil. This fuel is preferably put into the receptacle above-
described in a melted state and the lower end of a wick embedded therein. Upon
cooling, this fuel becomes solid. Each of the two receptacles has a lid or cap
fitting closely so that when charged none of the contents can escape during 1
transit.
The accompanying drawings will show how our invention may be carried into
effect Figure I is an outside view of the apparatus: Figure II is a sectional
view. In Figure II, A is the upper compartment into which we place the
material to be vaporised. B is the base of the apparatus provided with a suit- 1
able compartment C into which we place the fuel, and in which is embedded the
end of the wick D. The receptacle C is fitted with a cap E, holding the wick D
in position, and the receptacle A is fitted with a cap or lid F, both these caps
fitting so that when charged none of the contents can escape during transit.
To place the apparatus in operation the cap or lid F at the top is removed and 2
the wick D lighted.
Hering now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is:-
An improved apparatus for vaporising or fumigating purposes having two 2
chambers or compartments joined together one above the other by any suitable
support substantially as herein described.
Dated this 22nd day of December 1897.