IMPROVEMENTS IN GAS LIGHTING AND HEATING
Year: 1885

page_text: I, THOMAS GARDINER MARSH of Failsworth in the County of Lancaster Gas
Engineer do hereby declare the nature of my invention for IMPROVEMENTS IN
GAS LIGHTING AND HEATING to be as follows:-
These improvements have for their object an increase in the amount of light and
radiant-heat emitted during the combustion of Gas and are modifications of the
apparatus described in my application for Patent No. 7893 1885 In the description
of the apparatus in my application for the said patent the Gills are said to be
radial and when one Burner only is used an oval opening in the bottom of the
chamber is stated as being required to suit the shape of the Flame.
With respect to the latter form of the apparatus the shape of the opening in the
bottom of the Chamber is not confined to an oval form but may be of any other
suitable shape and the Flame may be horizontal or at any angle above the same.
When more than one Burner is used the Flames in this case also may be hori-
zontal or at any angle above the same.
With respect to the Gills as well as being radial- these may be parallel and may
extend side by side to any requisite length the ends being closed in, in this case
the Burners are also arranged side by side being supplied with Gas from either or
both sides.
In case Gills are used on one side only of the apparatus both sides must still be
covered with the hood.
The foregoing modifications also apply where my improvements are applied for
heating purposes.

page_text: I, THOMAS GARDINER MARSH of Failsworth in the County of Lancaster Gas
Engineer do hereby declare the nature of my invention for IMPROVEMENTS IN
GAS LIGHTING AND HEATING and in what manner the same is to be performed,
to be particularly described and ascertained in and by the following statement :-
These Improvements have for their objects an increase in the amount of light
and radiant heat emitted during the combustion of Gas.
In carrying out my invention for Gas Lighting I form a metallic chamber above
the flame or flames but having a passage through the same by means of which the
products of combustion pass away.
The passage is however not direct but is made somewhat tortuous by having a
baffle-plate fitted in the interior of the chamber and extending nearly to its sides.
At the same time the space through which the products of combustion pass imme-
diately they leave the Hame is contracted so that in conjunction with the baffle
plate which is immediately above the space very little more than the actual
products of combustion is allowed to pass In the interior of the chamber and
extending across the space through which the products of combustion pass and
downwards to a level somewhat below the burner are radial or other plates. The
gas for supplying the burners is preferably introduced from above and the flames
may be arranged to burn either vertically or at any angle with the same but not
below the horizontal,
A covering of non-combustible material which may be transparent or opaque
surrounds the gills.
When the Gas has been lighted the products of combustion having to make
their exit through the passages in the chamber give up a large portion of their
heat to the plates or Gills and as these extend to a distance below the flames, the
air for supplying combustion becomes highly heated by contact likewise and
increases the amount of light.
In carrying out my invention as applied to heating I adopt a similar arrange-
ment to the foregoing but cause the heat to be thrown out in a horizontal direction
by using a polished metallic reflector beneath the Flames and chamber and supply
the gas in any convenient manner.
And in order that my invention may be fully understood and readily carried
into effect I will proceed to describe the accompanying sheet of drawings reference
being had to the figures and letters thereon marked similar letters referring to
similar parts throughout the several views..
Fig. 1 is a sectional elevation of my Invention as applied to lighting on
line A. A.
Fig. 2 is a sectional plan of same through the line B B one half looking up the
other half looking down.
Fig. 3 is a sectional elevation of one form of my invention as applied to
heating on line C. C.
Fig. 4 is a sectional plan of the same through line D D one half looking up the
other looking down,

page_text: Fig. 5 is a sectional elevation of another form of my invention as applied to
heating on line E E and Fig. 6-is a sectional plan of the same through F F
looking up.
In Figs. 1. 2. 3. 4. 5. 6. a is a metallic chamber containing baffle-plate b c c are
passages through which the products of combustion make their exit, dd are radial
or other plates extending downwards below the flames; e is the Gas-supply pipe
and the burners which are ordinary luminous ones the flames being shown in
dotted lines G is the covering which surrounds the Gills or plates.
In Figures 3. 4. 5. h is a polished metal reflector-In Fig. 5. i is a lining of
non-conducting 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 what
I claim is
1st The radial or other plates extending across the space through which the
products of combustion pass as also to some distance below the Flames and heated
by the products of combustion from luminous Flames substantially as and for the
purpose herein described and shown at d in Figs. 1. 2. 3. 4. 5 and 6 on accom-
panying sheet of drawings.
2nd For heating purposes the combination with Gills or Plates extending across
the space through which the products of combustion pass as also to distance below
the Flames and heated by the products of combustion from luminous flames, of a
polished metallic reflector plain or otherwise substantially as and for the purpose
herein described and shown at h 3, 4 and 5 in the accompanying sheet of
drawings.
1000