Improvements connected with Gas Burners.
Year: 1895

page_text: Date of Application, 5th Oct., 1895
Complete Specification Left, 28th Nov., 1895-Accepted, 25th Jan., 1896
Improvements connected with Gas Burners.
We, RICHMOND AND COMPANY LIMITED, Engineers, WILLIAM SMITH,
Works Manager, and EDMOND WALTER TYRRELL RICHMOND, Engineer, alí
of Academy Street, Warrington, in the County of Lancaster, do hereby declare
the nature of this invention to be as follows:-
The types of gas-burners to which this invention has special reference are those
wherein the mixing tube or tubes which convey the air and gas to the burning
nozzle or nozzles is or are arranged in the horizontal plane, as for instance, the
burners used in gas fires, or domestic fire-places; and this invention will, for
convenience, be described as applied to a burner of this kind, it being understood,
however, that the improvements are capable of application to gas-burners of similar
or analogous kinds, and therefore are not restricted to this special application.
In a burner according to this invention, an upper and a lower tube or passage,
through which the gas and air flow from the point of entrance of such gas and air
to the burner nozzle, are employed, and they are separated by a diaphragm; and in
one case, the upper and lower tubular parts of the tube and the diaphragm are
separate, and all three are suitably clamped or equivalently fastened together. In
one construction, when made in this way, the upper and lower parts may consist
mainly of open troughs, and will, in one arrangement, be disposed directly one
above the other, the edges of the trough fitting onto the diaphragm at the same
point on the top and bottom thereof, the joint with the diaphragm being
conveniently made by providing a recess or channel on it where the edges of the
mixing tubes come and into which they fit; and in fastening or making up
the burner, the jointing parts may be provided with some suitable jointing
material, as cement, or other suitable material.
In the case of a burner for domestic grates, where the air and gas are introduced
in one tubular portion thereof, and are carried in a duplex arrangement right and
left, towards the ends, and then into another tubular part, where they are
discharged through a plurality of nozzles, the gas and air would be introduced and
mixed in the centre of the front lower mixing tube, in which the gas mixing
nipples may be disposed; and they are then carried right and left around by this
lower tube to the back where the diaphragm is provided with an aperture or
perforation, and through which the gases and air pass into the upper conduit, and
flow right and left, and on into the front upper tube where the burning nozzles or
nostrils are provided, and at which they are burned. The upper and lower parts
and diaphragm are suitably made of cast metal, such as cast iron, and when the
burners are applied to an ordinary domestic grate or fire-place, the diaphragm is
made in form to suit the plan of such fire-grate.
As above stated, the invention is not restricted to the particular type of burner
more especially referred to; nor are the improvements confined to the particular
details and forms of parts more especially mentioned herein.
Dated this 2nd day of October 1895.
CHEESBROUGH & ROYSTON,
15 Water Street, Liverpool, Applicants' Patent Agents,

page_text: We, RICHMOND AND COMPANY LIMITED, Engineers, WILLIAM SMITH,
Works Manager, and EDMOND Walter TyrrELL RICHMOND, Engineer, all
of Academy Street, Warrington, in the County of Lancaster, 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 types of gas-burners to which this invention has special reference are those
wherein the mixing tube or tubes which convey the air and gas to the burning
nozzle or nozzles is or are arranged in the horizontal plane, as for instance, the
burners used in gas fires, or domestic fire-places; and this invention will, for
convenience, be described as applied to a burner of this kind, it being understood,
however, that the improvements are capable of application to gas-burners of similar
or analogous kinds, and therefore are not restricted to this special application.
In a burner according to this invention, an upper and a lower tube or passage,
through which the gas and air flows from the point of entrance of such gas and
air to the burner nozzle, are employed, and they are separated by a diaphragm ;
and in one case, the upper and lower tubular parts of the tube and the diaphragm
are separate, and all three are suitably clamped or equivalently fastened together.
In one construction, when made in this way, the upper and lower parts may consist
mainly of open troughs, and will, in one arrangement, be disposed directly one
above the other, the edges of the trough fitting onto the diaphragm at the same
point on the top and bottom thereof, the joint with the diaphragm being
conveniently made by providing a recess or channel on it where the edges of the
mixing tubes come and into which they fit; and in fastening or making up
the burner, the jointing parts may be provided with some suitable jointing material,
as cement, or other suitable material."
In the case of a burner for domestic grates, where the air and gas are introduced
in one tubular portion thereof, and are carried in a duplex arrangement right and
left, towards the ends, and then into another tubular part, where they are
discharged through a plurality of nozzles, the gas and air woull be introduced and
mixed in the centre of the front lower mixing tube, in which the mixing nipple
may be disposed; and they are then carried right and left around by this lower
tube to the back where the diaphraga is provide with an aperture or perforation,
and through which the gases and air pass into the upper conluit, and flow right
and left, and on into the front upper tube where the burning nozzles or nostrils are
provided, and at which they are burned. The upper and lower parts and diaphragm
are suitably made of cast metal, such as cast iron, and when the burners are applied
to an ordinary domestic grate or fire-place, the diaphragm is made in form to suit
the plan of such fire-grate.
As above stated, the invention is not restricted to the particular type of burner
more especially referred to; nor are the improvements confined to the particular
details and forms of parts more especially mentioned herein.
A burner for domestic and other analogous grates, having the characteristics
above described, is illustrated in the accompanying drawings, in which Figure 1 is
a cross section, and Figure 2 a plan partly in section; the section in Figure 1 being
taken at A A Figure 2. In Figure 2 the diaphragm and some part of tubular
part b, are broken away so as to illustrate and render more clear the construction
of form of the burner.
Referring now to the drawings, a is the lower trough shaped tubular part of the
burner, is the upper inverted trough shaped part, and c is the diaphragm
separating these two parts. The upper and undersides of the diaphragm e, at the
parts where the tubes a and come in contact with it, are provided with wedge

page_text: shaped channels c¹; and the edges a' and 6' of the tubular parts a 6 are of
wedge shape and fit within such channels c¹ and in the fitting together of the
parts of this burner, if a suitable joint making material, as a white or red lead, be
placed between the channels c¹ and the edges a¹ b1, a gas tight joint will be made
between the trough shaped parts a and b and the diaphragm c, these two parts
being clamped and held in position conveniently by bolts d, which pass through
webs e at either end of the burner.
The trough shaped parts a and b form, with the diaphragm c, upper and lower
tubes hi. To the lower of these tubes, h, on the underside of the diaphragm c, the
gas is introduced by nipples g; and at this part also, through an opening, the air,
for admixture with the gas, enters.
Above this portion, but on the upper tube i, flame nozzles k are arranged; while
on the back side of the burner there is an aperture in the diaphragm, through
which entrance from the lower tube his had to the upper tube i.
In general design the burner shewn is similar to that of the ordinary domestic
grate type.
In operation, the gas from the nipples g passes right and left along the under
tube h, and air enters through fand passes along with it through the tube h. This
gas and air mix together and flow in opposite streams along the lower tube h
toward the opposite ends of the burner, and then turn and flow towards one another
to a central point in the back half of the burner, where the aperture 7 is situated,
and at this point they meet and pass upwards through the aperture into the upper
tube i, and then divide and pass right and left, and round the ends and to the
portion of the tube i upon which the flame nozzles k exist, at which they are burned
in the ordinary way.
By this construction of burner, that is, by the arrangement of upper and lower
tubes, and the courses which the gas and air are thereby caused to take, the
prevention of burning back of the gas at the nipples g, due to down draught and
air disturbances, is rendered more certain; a good and efficient admixture of air
and gas is effected; and a cheap and easy construction of burner of the type
referred to afforded.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
1. In a burner of the kind herein referred to, the construction, substantially as
described, of a burner having upper and lower tubes or tubular passages, through
which the gas and air mixture flow from the point of entrance to the flame nozzles,
said upper and lower tubes consisting of tubular parts, and a separating diaphragm ;
substantially as set forth.
2. In a burner of the type herein described and having the characteristics
specified in Claim 1, the construction by which the gas and air are introduced at
one part of a lower tube, and pass in opposite directions and then are brought back
and mix and pass into the upper tubes, and again divide and pass in opposite
directions; substantially as described.
3. The burner constructed particularly as set forth with reference to and shewn
in the drawings.
D
Nb 1005
CHEESBROUGH & ROYSTON,
15 Water Street, Liverpool, Applicants' Patent Agents.