AN IMPROVED.GAS BURNER
Year: 1865

page_text: LETTERS PATENT to George Davies, of No. 1, Serle Street, Lincoln's
Inn, in the County of Middlesex, and No. 87, St. Vincent Street, in the
City of Glasgow,.Civil Engineer and Patent Agent, for the Invention
of "AN IMPROVED.GAS BURNER."- A communication from abroad by
James Stratton, of Philadelphia, Pennsylvania, in the United States of
America.
Sealed the 19th June 1866, and dated the 21st December 1865.
PROVISIONAL SPECIFICATION left by the said George Davies at the
Office of the Commissioners of Patents, with his Petition, on the 21st
December 1865.
I, GEORGE DAVIES, of No. 1, Serle Street, Lincoln's Inn, in the County of
Middlesex, and No. 87, St. Vincent Street, in the City of Glasgow, Civil
Engineer, and Patent Agent, do hereby declare the nature of the said
Invention for "AN IMPROVED GAS BURNER," (a communication to me from
abroad by James, Stratton, of Philadelphia, Pennsylvania, in the United
States of America,) to be as follows:-
The improved gas burner consists of a hollow conical projection having one
or more openings in the side, a cap having corresponding openings (also in

page_text: the side), and a tip having in the top the usual aperture or apertures for the
egress of the gas according to the form of jet required, the whole being
constructed substantially as described hereafter, so as to regulate the amount
of gas which passes through the burner, and thus prevent the waste of gas by
servants and others careless in its use. The base of the hollow projection is
provided with an internal screw thread which is adapted to an external screw
thread on the upper end of the supply pipe. On the upper conical or taper
part of the former is fitted a cap closed at the top and having a hole or holes
in the side corresponding with the opening or openings in the conical
projection, so that when this cap is in one position the gas passes freely
through the opening or openings and a full supply is allowed to pass through,
but upon turning round this cap the opening or openings is or are partially
closed, and thus the supply of gas is diminished. The tip which forms the
jet passes over and encloses both the hollow projection and the cap, and is
provided at its base with an internal screw thread adapted to an external
screw thread on the former, and this tip is secured so firmly in its place as to
require considerable exertion and the employment of a suitable instrument to
remove it, the adjustment of the cap by unauthorized persons being thus.
rendered a matter of some difficulty. It will be evident that by the use of a
device of this description the quantity of gas to be passed through the burner
may be regulated with the greatest nicety, and the wasting of gas by servants
and others who are careless in its use will be thus obviated.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said George Davies in the Great Seal Patent Office on the
21st June 1866.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, GEORGE
DAVIES, of No. 1, Serle Street, Lincoln's Inn, in the County of Middlesex,
and No. 87, St. Vincent Street, in the City of Glasgow, Civil Engineer and
Patent Agent, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-first day of December, in the year of our
Lord One thousand eight hundred and sixty-five, in the twenty-ninth year
of Her reign, did, for Herself, Her heirs and successors, give and grant
unto me, the said George Davies, Her special licence that I, the said
George Davies, my executors, administrators, and assigns, or such others as

page_text: I, the said George Davies, my executors, administrators, and 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 "AN
IMPROVED GAS BURNER," (a communication to me from abroad by James
Stratton, of Philadelphia, Pennsylvania, in the United States of America,)
upon the condition (amongst others) that I, the said George Davies, my
executors or administrators, by an instrument in writing under my, or their,
or one of their hands and seals, should particularly describe and ascertain
the nature of the said Invention, 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.
NOW KNOW YE, that I, the said George Davies, do hereby declare
the nature of the said Invention, and in what manner the same is to be
performed, to be particularly described and ascertained in and by the following
statement in writing, and on reference to the accompanying Sheet of Drawings,
that is to say:
The improved gas burner consists of a hollow conical projection having one
or more openings in the side, a cap having corresponding openings (also in
the side), and a tip having in the top the usual aperture or apertures for the
egress of the gas according to the form of jet required, the whole being
constructed substantially as described hereafter, so as to regulate the amount
of gas which passes through the burner, and thus prevent the waste of gas by
servants and others careless in its. use. The base of the hollow projection is
provided with an internal screw thread on the upper end of the supply pipe.
On the upper conical or taper part of the former is fitted a cap closed at the
top and having a hole or holes in the side corresponding with the opening or
openings in the conical projection, so that when this cap is in one position the
gas passes freely through the opening or openings and a full supply is allowed
to pass through, but upon turning round this cap the opening or openings is
or are partially closed, and thus the supply of gas is diminished. The tip
which forms the jet passes over and encloses both the hollow projection and
сар, and is provided at its base with an internal screw thread adapted to
an external screw thread on the former, and this tip is secured so firmly in its
place as to require considerable exertion and the employment of a suitable
instrument to remove it, the adjustment of the cap by unauthorized persous
the

page_text: being thus rendered a matter of some difficulty. It will be evident that by'
the use of a device of this description the quantity of gas to be passed through
the burner may be regulated with the greatest nicety, and the wasting of gas.
by servants and others who are careless in its use will be thus obviated.
Such being the nature and object of the said Invention for "An Improved
Gas Burner," I will now proceed to describe more in detail the manner in
which the same is to be or may be performed or carried into practical effect,.
and in order that the same may be distinctly understood I have annexed
hereunto a Sheet of Drawings illustrative thereof, and have marked the same.
with figures and letters of reference corresponding with those in the following
explanation thereof, that is to say :-
In the annexed Drawing, Figure 1 is a sectional elevation of the improved
burner drawn to an enlarged scale; Figure 2, a sectional plan:on the line 1, 2,
Figure 1; Figure 8, an elevation of the burner, partly in section.; Figure 4,
a sectional plan on the line 3, 4, Figure 3.
A is a gas burner, in the hollow cylindrical base a of which are internal
threads adapted to those on the supply pipe B, to which the burner is attached.
At the upper end of the base a is a hollow tapering projection a¹, open at the.
top, and having at the base external screw threads adapted to the internal
threads of a tip C; in the upper end of the latter are the usual openings c, c.
To the tapering projection a¹ is adapted a conical cap D, in the side of which
is an opening a, the latter when the cap D is in the position shown in
Figure One coinciding with a similar opening a³ in the projection a¹. It will
be seen that when the openings x, x³, coincide with each other, as shewn in
Figure 1, the gas from the supply pipe can pass freely from the hollow
projection a¹ into the tip and to the openings c, c', where it is ignited in the
usual manner. When it is desired, however, to limit the quantity of gas
which is to pass through the burner the tip is removed and the cap D is
turned so as to partially close the opening a¹; the tip is again secured in its
place, the supply of gas which escapes from the openings c, c', being diminished
in proportion to the extent to which the openings has been covered by the
cap.
Having now described the nature and object of the said Invention for "An
Improved Gas Burner," together with the manner in which the same is to be
or may be performed or carried into practical effect, I would remark in
conclusion that I claim as the Invention (communicated to me by the above-
named James Stratton) the within-described gas burner, consisting of the
hollow tapering projection a¹ having one or more openings a, the cap D

page_text: having one or more openings corresponding with the openings a³, and the
tip C, the whole being constructed substantially as and for the purpose
described.
In witness whereof, I, the said George Davies, have hereunto set my
hand and seal, this Twenty-first day of June, in the year of our Lord
One thousand eight hundred and sixty-six.
GEORGE DAVIES. (L.S.)