IMPROVEMENTS IN LAMP BURNERS
Year: 1876

page_text: LETTERS PATENT to William Morgan-Brown, of the Firm of Brandon and
Morgan-Brown, Engineers and Patent Agents, of 38, Southampton Buildings,
London, and 13, Rue Gaillon, Paris, for the Invention of "IMPROVEMENTS IN
LAMP BURNERS." A communication from abroad by Henry Harrison Doty,
of Washington, D.C., United States of America.
Sealed the 2nd June 1876, and dated the 2nd March 1876.
PROVISIONAL SPECIFICATION left by the said William Morgan-Brown at
the Office of the Commissioners of Patents on the 2nd March 1876,
WILLIAM MORGAN-BROWN, of the Firm of Brandon and Morgan-Brown, Engineers
and Patent Agents, of 38, Southampton Buildings, London, and 13, Rue Gaillon,
Paris. "IMPROVEMENTS IN LAMP BURNERS."
These improvements in lamp burners have reference to burners consuming more
especially hydrocarbon oils, and consists in forming the same with three separate
wicks, arranged together in the form of a triangle, a certain amount of space being
left at each of the three angles or places of junction of the said wicks, the three
being united under one glass, combining together the light which they emit and
drawing the produce of their combustion preferably from one common source, but
each being provided with a separate means of adjustment.
I prefer making use of the ordinary flat wicks, passing them through the ordinary
flat wick holders; the latter however may be either curved inwardly or outwardly,
or formed with an angle converging towards the centre of the burner or diverging
therefrom.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by the
said William Morgan-Brown in the Great Seal Patent Office on the 23rd
June 1876.
WILLIAM MORGAN-BROWN, of the Firm of Brandon and Morgan-Brown, Engineers
and Patent Agents, of 38, Southampton Buildings, London, and 13, Rue Gaillon,
Paris. "IMPROVEMENTS IN LAMP BURNERS." (A communication from abroad by
Henry Harrison Doty, of Washington, D.C., United States of America.)
In order that the Invention be clearly understood and easily put into practical
application I will describe the same in detail conjointly with the four Figures of

page_text: the accompanying Drawing, of which Figure 1 is a plan of the triangular burner
in section through E, F, Figure 2; Figure an elevation of the same in section
through A, B, Figure 1; Figure 3, a plan complete; and Figure 4, an elevation idem.
In these Figures a, a, a, are the three tubes for the wicks; they are soldered or
otherwise attached in the first place to the lower circular base plate 6 provided
with an external thread c, to screw into the vase charged with hydrocarbon oil,
into which the lower extremities of the wicks are immersed in the usual manner;
and in the second place to the upper circular plate d which is turned down and
soldered or otherwise attached at e to the upper part of the base b. At e is also
attached the usual circular perforated basket f which terminates with an enlarged
diameter at g. Internally this basket receives and supports a perforated metallic
diaphragm through which the wick tubes a, a, a, pass, and externally serves as a
support to the triple capsule or cap i slotted above in three places r, r, r, for the
passage of the flame emitted by each wick, and laterally by a series of holes ;
this triple capsule i, which may either be simply placed on the top of the basket,
as shown in the Drawing, or jointed thereto in the manner well known, also serves
to receive the glass chimney inside the vertical gallery and a globe on the hori-
zontal flaunch m. n, n, n, are the racks mounted each on the stems o, o, o, which
are provided externally with the buttons p, p, p, for the purpose of regulating
individually and separately each wick.
As it will be seen the three wicks composing the new burner are arranged
together in the form of a triangle, preferably equilateral, each wick having separate
ineans of adjustment; on the other hand all three are fed from one source of
hydrocarbon or other liquid oil and one common supply of air, whilst the three
flames they emit are united under one glass chimney.
The main innovation in the Invention consists in grouping together three wicks
under the circumstances above-mentioned in the shape of a triangle, and to this
end many peculiarities of construction and arrangement are necessary, I will
mention amongst others the flaring of the wick holders, as more particularly shown
in Figure 2, that is, their divergence from one another as they emerge from the
base plate b, the object of which is twofold; in the first case to create between
the upper extremities of the burning wicks such a space as is found is necessary for
the perfect combustion of the fluid, and in the second place so that the three wicks
at their lower extremities can be brought as closely as possible together, thus
reducing to a minimum the diameter of the aperture or neck of the vase containing
the hydrocarbon liquids. I also mention the peculiar form of the capsule or cap i,
which whilst round at its base is composed at its upper part of three domes or
heinispheres q, q, q, one for each wick, as shown in elevation at Figures 2 and 4,
and in plan by an imaginary section line taken through C, D, Figures 2 and 4.
Having thus explained the nature of the Invention, as well as the best means
that I am acquainted with for carrying the same into operation, I would have it
understood that what I claim is,-
Firstly. A burner composed of three wicks arranged in the shape of a triangle,
as above described and illustrated.
Secondly. The flaring of the wicks and their tubes composing the said burner,
that is, their divergence one from another, after leaving the vase containing the
liquid oils, as above described and illustrated.
And, Thirdly. The peculiar construction and form of the cap i, with the throe
raised hemispheres q, q, q, slotted for the passage of the flames.
In witness whereof, I, the said William Morgan-Brown, have hereunto set my
hand and seal, this Twenty-third day of June, in the year of our Lord One
thousand eight hundred and seventy-six.
WILLIAM MORGAN-BROWN. (L.S.)