Improvements in Gas Stoves for Heating Purposes.
Year: 1898

page_text: Improvements in Gas Stoves for Heating Purposes.
HENRY OSBORNE STRONG, of Norfolk Works, Gloucester Street, Bristol, Mecha-
nical Engineer, do hereby declare the nature of this invention to be as follows:-
I do hereby declare the nature of this invention to be as follows.
1st. This invention relates to the construction of a cover or dome for gas heating
stoves; and may be made of a similar design to that shown by Fig. A of drawing
in plan & section and to consist of a mixture of burnt fire clay, plumbago, per-
oxide of manganese, & silica of soda; or other suitable material, and afterwards
burnt in a kiln in the general way of a fire brick.
2nd. The object of this invention is to provide a cover or dome that may be sus-
pended over a Bunsen or other gas flame and which forms an important part in
the construction of modern gas heating stoves of the regenerative or other prin-
ciple, for the purpose of refracting the heat downwards and whereby the said cover
or dome is raised to a great temperature without giving off the effencive smell
of super-heated metal as is usual with covers or domes made of iron or steel when
employed for this purpose in gas heating stoves.
3rd. These covers or domes may be made of any size and is preferably made
of circular form, but may be square, oblong, or any other shape to suit the parti-
cular stove it is intended to fit in.
4th. The dome or cover may also be made with hole in centre of crown and a
collar plug fitted of same material as shown in Fig. 1 of drawings, Through
this centre hole the Bunsen or other gas burner may be lit and the plug replaced
thus avoiding the necessity of taking the stove or apparatus to pieces for the
purpose of lighting.
9.1
1900
Improvements in Gas Stoves for Heating Purposes.
I, HENRY OSBORNE STRONG, of Norfolk Works, Gloucester Street, Bristol, Mecha-
nical Engineer, 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 relates to improvements in gas stoves for heating purposes, and
more particularly, to the domes or covers which are placed over the flames of
Bünsen or other burners to refract the heat downwards, and has for its object to

page_text: provide a dome made from material more suitable for the purpose, with a simple
means of access to the burner without removing the dome.
With modern gas heated stoves of the regenerative kind, for refracting the
heat downwards, as described in the Specification No. 22153 of 1896 the domes
used for this purpose have hitherto been made of iron or steel, and when heated
to a high temperature, there is frequently an objectionable metallic smell; I
remove this by making the domes from a mixture of fire clay, plumbago, peroxide
of manganese, and silicate of soda, or silica and fire clay only may be used;
these or similar materials are combined and mixed in the same proportions and
prepared in the same manner as crucibles and similar fire proof articles are made,
and burnt in a kiln in the usual way.
For some kinds of stoves, pure hematite iron may be advantageously employed
for the domes.
The domes are made of any desired shape, round, elliptical, polygonal, or rect-
angular, according to the particular form of stove in which they are intended to
be used, but those most suitable for general use are circular, as shown in the
accompanying sheet of drawings, in which Fig. 1 is an elevation and Fig. 2 a
plan of a dome made from this combination of materials, and of a similar shape
to those formerly used for the purpose; Fig. 3 is a section and Fig. 4 a plan
of the same dome, but with a lid in the top, fitted and faced to form an air-tight
cover, which can be removed and replaced for lighting purposes, rendering the
removal of the entire crown unnecessary; the lid may be of the same material
as the dome, or a different combination may be employed if considered desirable.
Fig. shows the dome inserted in a refractory stove made in accordance with
the specification before mentioned.
Having now particularly described and ascertained the nature of my said in-
vention, and in what manner the same is to be performed, I declare that what
I claim is:-
1. In refracting gas heating stoves, making the domes or covers which refract
the flame, from a combination of earthy or similar materials which will be un-
affected by intense heat, and which will not give off the unpleasant odour which
arises when metal domes are used, substantially as described.
2. In domes for use in refracting gas stoves, making the upper part with an
opening fitted with a removable lid, so that access may be obtained to the burner
without disturbing the whole dome; substantially as herein described.
3. The construction of domes for gas heating stoves with removable lids, and
the whole of the domes made of an earthy or similar fire proof material, substan-
tially as and for the purpose herein described and set forth.
Dated this 30th day of December 1898.
J. G. WESTLAKE,
Applicant's Agent, 2, John Street Bristol.