Improvements in or connected with Burners for Gas Fires, Gas Cooking Apparatus, and the like.
Year: 1899

page_text: Date of Application, 11th Jan., 1899
Complete Specification Left, 11th Oct., 1899-Accepted, 11th Nov,, 1899
PROVISIONAL SPECIFICATION.
Improvements in or connected with Burners for Gas Fires, Gas
Cooking Apparatus, and the like.
We, RICHMOND & Co. LIMITED, and EDMUND WALTER TYRREL RICHMOND, both of
Academy Street, Warrington, Lancashire, Carpenters Road, Stratford, London,
132, Queen Victoria Street, London, E.C., and 14, Courtenay Street, Plymouth,
Gas Engineers, do hereby declare the nature of this invention to be as follows:-
This invention has reference to burners of the kinds used in gas fires, gas
cooking apparatus, and the like; and has for its object and effect to provide an
improvement or improvements in connection with same, by which they are
rendered serviceable for use in the places where the gas is either of the ordinary
"illuminating" kind, or water-gas or the like, as the case may be.
According to this invention, as applied to the ordinary flat burner, such as
are used in gas fires with, say, double gas supply and mixing tubes, this end
is accomplished by the use in connection with the openings under the burner,
at which the air enters and mixes with the gas, of slides or shutters fitting over
the under part of the tubes, and provided with a clamping screw or the like for
fixing them in position.
In one tonstruction, these two slides or shutters are each provided with a slot,
in say an inwardly projecting part; and these projecting parts lie over one
another, and the screw screws into the body of the burner at a point within the
nozzles. By this construction, when the screw is loosened, the two slides can be
slid towards or away from one another, and then fixed in position by the clamp-
ing screw.
In burners of gas cooking apparatus, such as loose burners, the inlet ends of
such burners as generally made, are modified; namely, they may be partially
closed, and an air inlet is provided on the underside of the front end; and
fitting on the underside of the mixing tube, in connection with this open-
ing, there is a slide provided with a clamping screw, by which the opening can
be more or less covered, as may be required. At the same time, the gas nozzle
and the burner are disconnected, and the burner mounted as usual, so that it
can be placed in position or removed with the same facility as at present.
By this means, by leaving the air opening full open, giving the normal area
of air inlet, the burner is suitable for use for burning "illuminating" gas;
whilst, for burning water gas, the amount of gas in proportion to air must be
greater, and in that case, the shutters or slides are so moved and adjusted as to
partially cut off some of the supply of air, and so bring up the proportion to that
required.
11.
1011
1000

page_text: Improvements in or connected with Burners for Gas Fires, Gas
Cooking Apparatus, and the like,
We, RICHMOND & Co. LIMITED, and EDMUND WALTER TYRREL RICHMOND, both of
Academy Street, Warrington, Lancashire, Carpenters Road, Stratford, London,
132, Queen Victoria Street, London, E.C., and 14, Courtney Street, Plymouth,
Gas Engineers, 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:―
This invention has reference to burners of the kinds used in gas fires, gas
cooking apparatus, and the like; and has for its object and effect to provide an
improvement or improvements in connection with same, by which they are
rendered serviceable for use in the places where the gas is either of the ordinary
"illuminating" kind, or water-gas or the like, as the case may be.
According to this invention, as applied to the ordinary flat burner, such as
are used in gas fires with, say, double gas supply and mixing tubes, this end
is accomplished by the use in connection with the openings under the burner,
at which the air enters and mixes with the gas, of slides or shutters fitting over
the under part of the tubes, and provided with a clamping screw or the like for
fixing them in position.
In one construction, these two slides or shutters are each provided with a slot,
in, say, an inwardly projecting part; and these projecting parts lie over one
another, and the screw screws into the body of the burner at a point within the
nozzles. By this.construction, when the screw is loosened, the two slides can be
slid towards or away from one another, and then fixed in position by the clamp-
ing screw.
In burners of gas cooking apparatus, such as loose burners, the inlet ends of
such burners, as generally made, are modified; namely, they may be partially
closed, and an air inlet is provided on the underside of the front end.; and
fitting on the underside of the mixing tube; and in connection with this open-
ing, there is a slide provided with a clamping screw, by which the opening can
be more or less covered, as may be required. At the same time, the gas nozzle
and the burner are disconnected and the burner mounted as usual, so that it
can be placed in position or removed with the same facility as at present.
By this means, by leaving the air opening full open, giving the normal area
of air inlet, the burner is suitable for use for burning illuminating" gas;
whilst, for burning water gas, the amount of gas in proportion to air must be
greater, and in that case, the shutters or slides are so moved and adjusted as to
partially cut off some of the supply of air, and so bring up the proportion to that
required.
66
The invention is illustrated in the annexed drawings, .in .which Figure 1 is a
plan of a burner with the improvements applied, and as seen from the underside;
and Figure 2 is an end.clevation.
a are
The burner illustrated is of a type commonly employed in gas fires, with
double, .. right and left hand, gas and air supply, and mixing tubes.
the mixing tubes; 6 is the gas supply fitting, and 6 the two.nipples supplying
gas to the mixing tubes a in the usual way; whilst c are the openings for air
in the inlet end of the mixing tubes.a.
The shutters or slides which are provided and work in connection with these
openings, are designated d, and they are adapted to slide and be adjusted longi-
tudinally over the mixing tubes a and air inlet c; and are fixed in the positions

page_text: to which they are set by screw stud e fixed in the burner, and a thumb nut f,
the screw passing through slots in the projections or horns h formed on the
slides d, one being disposed and working on the other. The slots in the horns
enable the longitudinal adjustment of the slides referred to to take place.
When the gas used in the burner is water-gas, the proportion of gas to air
would be relatively greater, than when using ordinary illuminating gas, and the
slides or shutters d are adjusted so as to obtain the required proportion of air
to such gas; and, generally, accordingly as is the proportion of air to gas
required for its effective combustion, so will the shutters or slides be adjusted
over the air apertures c, more or less, to attain this proportion.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, we declare that what we
claim is :-
1. A burner for gas fires and similar gas heated apparatus of the kinds herein
referred to, having mixing tubes or a tube with air inlets or an air inlet-
on the underside of same at the points of gas supply, and having slides or a
slide working over the said air inlets, and adapted to be fastened and held;
substantially as and for the purposes set forth.
2. The duplex gas fire burner with right and left hand mixing tubes a; air
inlets on the underside; gas supply fitting or nipples b¹; and slides d over the
openings on the underside of the tubes a, and with projections h, by which
the said slides are clamped onto the burner; as set forth with reference to and
shewn in the drawings.