Improvements in connection
Year: 1899

page_text: Date of Application, 12th Apr., 1899-Accepted, 13th May, 1899
Improvements in connection
We, JOHN LUFF RUST, Gas Manager, Tintern House, Chepstow, and JOHN
LEWIS, Plumber and Gasfitter, 8, Moor Street, Chepstow, Monmouth, do hereby
declare the nature of this invention and in what manner the same is to be per-
formed to be particularly described and ascertained in and by the following
statement.
Our invention relates to improvements in connection with gas-cookers and the
object is to provide a boiler which can be placed between the deflecting and crown
plates of the cooker, in the, at present, unoccupied space between those plates.
To this end we provide a boiler of suitable shape and construction so that it can
be slid into the space above mentioned an opening being provided in one of the
walls surrounding the space. Various kinds of boilers may be employed for the
purpose. For instance the boiler may be a simple flat sheel to contain the water.
It may also be in the form of a shell having within it tubes disposed in zig-zag
fashion so as to cause the heat between the plates to circulate through the tubes
and heat the water surrounding them. Again the boiler may consist simply of a
pipe bent to and fro or coiled and communicating at each end with a water
chamber, the water circulating through the pipe or coil and becoming heated by
the surrounding air in the space. In all cases we prefer that the boiler shall be
a short distance above and not rest directly on the deflecting plate. We also pre-
fer that the boiler shall project somewhat outside the opening by which it is
inserted into the space between the deflecting and crown plates in order that pro-
vision may the more conveniently be made for charging and emptying the contents
as and when required. In order to more fully describe our invention we make
reference to the accompanying drawings in which Fig. 1 is a perspective view
showing the position the boiler is to occupy. Fig. 2 is a plan and Fig. 3 a cross
section of one type of boiler we propose to use and Figs. 4 and 5 similar views of
another type we may also employ. Referring to Fig. 1, a is a part of the body of
the cooker, the deflecting plate being on a line with and the crown plate being
shown at c. d shows one of the walls surrounding the space between band c
and we propose to cut away one of the sides as at in order that a boiler may be
One of such boilers as we
slipped in to be heated in the space between b and c.
propose to use is shown by Figs. 2 and 3 in which e is a shell, f a pipe arranged
in the shell as shown, g an inlet at the bottom or side of f for the heated air
A modifi-
which escapes at h after circulating through f and heating the water.
cation of this kind of boiler would be to omit the piping and simply have the
shell. Referring to the boiler shown Figs. 4 and 5 we provide a water chamber i
and the to and fro pipe j, k being the flow and 7 the return, the former opening
into at a greater distance from the bottom of than does the latter. In the
drawings m represents the feed opening and n the draw-off tap. In the drawings
we have shown the boiler projecting outside the opening through which it is
slid in, as being more convenient for filling and emptying, but if desired the boiler
may be placed entirely within the space between 6 and c.
The boilers may be

page_text: permanently or removably attached in position and if desired a separate jet or
burner may be provided for heating the boiler.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed we declare that what
we claim is :-
1. Providing gas cookers with a boiler to slide into or situated in the space
between the deflecting and crown plates an opening to permit the insertion of the
boiler being provided if necessary in one of the walls surrounding the said space
the whole substantially as described in the above specification and exemplified in
the accompanying drawings.
2. For use in gas cookers such as are mentioned in the above Claim 1 boilers
consisting of a shell having or not therein a pipe or pipes arranged in zig-zag or
other fashion and conveying heated air through the water in the shell, the whole
substantially as described in the above specification and exemplified by Figs. 2
and 3 of the accompanying drawings.
3. For use in gas cookers such as are mentioned in the above Claim 1, boilers
consisting of a water chamber having communicating therewith the opposite ends
of a pipe bent to and fro or into a coil, the whole substantially as described in
the above specification and exemplified as regards a pipe bent to and fro by Figs. 4
and 5 of the accompanying drawings.
4. Gas cookers having boilers arranged and situated substantially as described
in the above specification and exemplified in the accompanying drawings.
Dated this 1st day of March 1899.
HUGHES & YOUNG,
23, Coleman Street, E.C., Agents.