Improvements in Gas-burners for Cooking and Heating Purposes.
Year: 1890

page_text: Date of Application, 15th Mar., 1890
Complete Specification Left, 13th Dec., 1890-Accepted, 7th Feb., 1891
PROVISIONAL SPECIFICATION.
Improvements in Gas-burners for Cooking and Heating Purposes.
We, WALTER EDMUND JAQUES, of Munro Street, Stenhousemuir, in the County
of Stirling, Pattern Maker, and JOHN JOHNSTON, of Crofthend House, Langside,
in the County of Renfrew, Iron Merchant, do hereby declare the nature of this
invention to be as follows:-
The improved gas burner for cooking and heating purposes constructed in
accordance with this invention is composed of two sections preferably circular in
plan the upper section having feet or rests projecting downwards from it and on
which the apparatus is supported whilst on its top side it has a number of supports
to afford a rest above the flame for cooking utensils. The other section of the
burner is secured to the under side of the top section and both sections are so dished
that when put together they enclose a series of three distinct concentric spaces the
outer one of which constitutes a mixing chamber for gas and air which are admitted
to it through separate inlets or nozzles. Between the second and the innermost
concentric space four or other mumber of channels preferably rectangular are formed.
vertically in the under section these channels being provided for the inlet from
below of cold air to the centre or interior of the flame. In the top of the middle
and inner concentric spaces slits extending along the outer sides of these air channels
are formed in the upper section the said slits constituting burners at which the gus
is consumed. Openings for the passage of the air and gas from the outer mixing
chamber into the next concentric chamber and from the latter into the innermost
concentric space are provided in the walls of these chambers.
Dated this Fourteenth day of March 1890.
CRUIKSHANK & FAIRWEATHER,
62, St. Vincent Street, Glasgow, Agents.
COMPLETE SPECIFICATION.
Improvements in Gas-burners for Cooking and Heating Purposes.
We, WALTER EDMUND JAQUES, of 32, York Street, Glasgow, in the County
of Lanark, Pattern Maker, and JOHN JOHNSTON, of Crofthead House, Langside,
in the County of Renfrew, Iron Merchant, 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 improved gas burner for cooking and heating purposes constructed in
accordance with one modification of this invention as seen in vertical section at
Figures 1 and 3 and in plan at Figures 2 and 4 of the accompanying drawings is
composed of two sections ab preferably circular in plan the upper section a having
feet or rests c projecting downwards from it and on which the apparatus is supported
or as at Figure 3 the said feet or rests may be made on the lower section b. “On its
top side the upper section has a number of supports d to afford a rest above the
flame for cooking utensils. The lower section is secured to the under side of the
top section a and both sections are so formed or dished that when put together they
enclose a series of three concentric spaces e, f g the outer one e of which constitutes
a mixing chamber for gas and air the gas being admitted to the chamber through a
pipe whilst the air passes in through the opening i. Between the second and
the innermost concentric space four or other number of channels j preferably
rectangular are formed vertically in the under section 6 these channels being
provided for the inlet from below of cold air to the centre or interior of

page_text: the flame. In the top of the middle and inner concentric spaces slits k extending
along the outer sides of these air channels are formed in the upper section a the
said slits constituting burners at which the gas is consumed. Openings for
the passage of the air and gas from the outer mixing chamber è into the next
concentric chamber fand from the latter into the innermost concentric space y are
provided in the walls of these chambers as indicated by Figures 1 and 3.
Under a modification illustrated in vertical section at Figure 5 and in plan at
Figure 6 and which is especially applicable as a gas burner for heating tea and
coffee urns hot water kettles or the like on shop counters or other situations the
mid chamber fand the air channels for the passage of cold air to the centre of
the flame are dispensed with the admixed gas and air from the chamber e passing
through an opening or openings 7, into the chamber g and thence through a number
of holes m made close together on the top section a at which the mixture is con-
sumed in a circular flame. With this arrangement rests or supports d for heating
or cooking utensils may also be formed on the upper section a as seen at Figures 7
and 8 of the drawings.
With burners constructed in accordance with this invention the exterior injector
tube usually employed as a mixing chamber for the gas and air and which tube
extends outwards as a branch from one side of the apparatus is dispensed with the
mixing being effected in the chamber e around which two combined currents of gas
and air are caused to sweep in opposite directions until they meet at the opening
where they are amalgamated and completely mixed and through which they pass
to the burner.
The gas supply tube h instead of being exterior of the apparatus may be introduced
from below and instead of making the burner in two sections a bit may be cast in
one piece with the chambers arranged as set forth.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be perfonned we declare that what we
claim is :-
1. A gas burner for cooking and heating purposes arranged and constructed
substantially as described with reference to Figures 1, 2, 3 and 4 of the annexed
drawings and wherein a projecting or exterior mixing chamber or tube is dispensed
with the air and gas being mixed in sweeping around an interior chamber and passing
thence through other concentric chambers to the point of combustion at which air
currents are supplied to the interior of the flame through specially provided channels
as set forth.
2. A gas burner for cooking and heating purposes arranged and constructed
substantially as described with reference to Figures 5, 6, 7 and 8 of the accom-
panying drawings and wherein a projecting exterior mixing chamber or tube is
dispensed with the air and gas being thoroughly mixed in sweeping round an interior
chamber from whence the mixture passes through a concentric chamber to the point
of combustion as set forth.
c
CRUIKSHANK & FAIRWEATHER,
62, St. Vincent Street, Glasgow, Agents.