CERTAIN IMPROVEMENTS IN THE MANUFACTURE OF GAS DUKNERS.AL SPECIFICATION
Year: 1868

page_text: LETTERS PATENT to John Wright, of Birmingham, in the County of
Warwick, Gas Stove and Burner Manufacturer, and William Henry
Williams, also of Birmingham, aforesaid, Machinist, for the Inven-
tion of "CERTAIN IMPROVEMENTS IN THE MANUFACTURE OF GAS DUKNERS.
PROVISIONAL SPECIFICATION left by the said John Wright and
William Henry. Williams at the Office of the Commissioners of
Patents, with their Petition, on the 25th September 1868.
We, JOHN WRIGHT, of Birmingham, in the County of Warwick, Gas
Stove and Burner Manufacturer, and WILLIAM HENRY WILLIAMS, also
of Birmingham, aforesaid, Machinist, do hereby declare the nature of
our said Invention for "CERTAIN IMPROVEMENTS IN THE MANUFACTURE OF GAS
BURNERS," to be as follows (that is to say) :-
Our Invention directly applies to the description of burners known as
fish-tail burners, and instead of forming them solid we purpose forming
them of tube, cast or otherwise, and applying a metal tip within or to the
same in such a manner that the said tip may be removed for the purpose
of renewal. And in some instances we purpose altering the angle of the

page_text: holes through which the gas passes so as to permit the gas to escape at
an obtuse angle, and also to divide the tip by a groove or nick at right
angles to the orifices of escape, and apply a small thin blade of steel or
other suitable metal or material for the purpose of throwing off and
dividing the jet of gas, thereby enabling it to consume more oxygen, and
consequently a very perceptible increase of light is obtained.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said John Wright and William Henry Williams in the
Great Seal Patent Office on the 25th March 1869.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, JOHN
WRIGHT, of Birmingham, in the County of Warwick, Gas Stove and
Burner Manufacturer, and WILLIAM HENRY WILLIAMS, also of Birming-
ham, aforesaid, Machinist, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twenty-fifth day of September, in the
year of our Lord One thousand eight hundred and sixty-eight, in the
thirty-second year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto us, the said John Wright and William Henry
Williams, Her special license that we, the said John Wright and William
Henry Williams, our executors, administrators, and assigns, or such
others as we, the said John Wright and William Henry Williams, our
executors, administrators, or assigns, should at any time agree with,
and no others, from time to time and at all times thereafter during the
term therein expressed, should and lawfully might make, use, exercise,
and vend, within the United Kingdom of Great Britain and Ireland,
the Channel Islands, and Isle of Man, an Invention for "CERTAIN
IMPROVEMENTS IN THE MANUFACTURE OF GAS BURNERS," upon the condition
(amongst others) that we, the said John Wright and William Henry
Williams, by an instrument in writing under our hands and seals,
should particularly describe and ascertain the nature of the said Inven-
tion, and in what manner the same was to be performed, and cause
the same to be filed in the Great Seal Patent Office within six
calendar months next and immediately after the date of the said Letters
Patent.

page_text: front view of a burner at Figs. 3, 4, 5, and 6, with the top end of the
said tip a nicked or grooved centrally between the orifices of escape,
as will be seen by referring to Figure 5, in which groove we fix the
divisional plate marked e, formed by preference of thin sheet steel, but
other metal or material may be used if desired; the effect of this
divisional plate is to cause the flame to be deflected, flattened, and
diffused into a film, whereby more oxygen is consumed in the process of
combustion, and consequently a better light is produced at considerably
less cost than with burners of ordinary construction. Fig. 7 represents a
detached sectional and side view of the tip a with the divisional plate e 1
inserted, showing the orifices ff, through which the gas is emitted at
a suitable angle for deflecting and diffusing the flame; and Fig. 8 is a
top view of the same, the divisional plate e extending by preference to
the full diameter of the metal tip.
At Figs. 9 and 10 we have exhibited our improvements applied to an ]
argand burner, the burners proper g, g, being made small in proportion,
and fixed firmly either by screwing or otherwise into the plate h, h, flush
with its surface, the only projecting parts being the tips e, as will be
seen by reference to Figure 10, and the said tips radiating from the
centre a circular or argand light will be thereby produced.
Fig. 11 represents an argand burner with the burners proper, such as
exhibited enlarged at Figure 4, fixed either by screwing or otherwise to
the plate h, the upper portions of the said burners projecting from the
surface of the plate, as exhibited.
2
Having now described and illustrated our Invention, and the manner 2
in which the same may be carried into effect, we wish it understood that
we do not purpose confining ourselves to the details herein described
and exhibited, as the same may be varied without departing from the
nature and spirit of our Invention; but what we claim and wish protected
by these our in part recited Letters Patent is,―
Firstly. The application to gas burners known as fish-tail burners of a
metal tip capable of being applied, removed, or renewed at pleasure, as
herein described and exhibited.
Secondly. In forming a slit or groove centrally across such or other
non-metallic tips at right angles to the orifices of escape for receiving and a
applying the thin divisional plate of metal or other material as herein
described and exhibited, that is to say, the combining of the portable tip

page_text: with a portable bar or divisional plate without regard to the material of
which the same may be composed.
In witness whereof, we, the said John Wright and William Henry
Williams, have hereunto set our hands and seals, this Twenty-
fourth day of March, in the year of our Lord One thousand eight
hundred and sixty-nine.
Witness,
WILLIAM LOACH,
JOHN WRIGHT.
(L.8.)
WILLIAM HENRY WILLIAMS. (L.S.)
Clerk to James S. Cockings,
Patent Agent,
Birmingham.