IMPROVE- MENTS IN APPARATUS FOR THE COMBUSTION OF GAS
Year: 1869

page_text: LETTERS PATENT to George Sidley Chase, of Belfast, in the County
of Antrim, in Ireland, Gasfitter, for the Invention of "IMPROVE-
MENTS IN APPARATUS FOR THE COMBUSTION OF GAS."
Sealed the 13th August 1869, and dated the 7th April 1869.
PROVISIONAL SPECIFICATION left by the said George Sidley Chase
at the Office of the Commissioners of Patents, with his Petition,
on the 7th April 1869.
I, GEORGE SIDLEY CHASE, of Belfast, in the County of Antrim, in
Ireland, Gasfitter, do hereby declare the nature of the said Invention
for "IMPROVEMENTS IN APPARATUS FOR THE COMBUSTION OF GAS," to be as
follows:-
This Invention consists in the use of a thin vertical plate or bar of
solid or hollow steel or other metallic substance placed on edge across
the upper surface, and between the perforations of an union jet or other
similar burner, and supported at one or each end by a bracket attached
to a hollow socket carrying the gas burner, and fitting into the socket
at the extremity of the arm of a gaselier or gas branch, or attached

page_text: directly to or otherwise fixed upon the arm of a gaselier or gas branch.
The thin vertical plate or bar aforesaid may be perforated.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said George Sidley Chase in the Great Seal Patent
Office on the 7th October 1869.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, GEORGE
SIDLEY CHASE, of Belfast, in the County of Antrim, in Ireland, Gas-
fitter, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Seventh day of April, in the year of
our Lord One thousand eight hundred and sixty-nine, in the thirty-
second year of Her reign, did, for Herself, Her heirs and successors, give
and grant unto me, the said George Sidley Chase, Her special licence
that I, the said George Sidley Chase, my executors, administrators, and
assigns, or such others as I, the said George Sidley Chase, 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 "IMPROVEMENTS IN
APPARATUS FOR THE COMBUSTION OF GAs," upon the condition (amongst others)
that I, the said George Sidley Chase, 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 Sidley Chase, do hereby declare
the nature of my said Invention, and in what manner the same is to be
performed, to be particularly described and ascertained in and by the
following statement, that is to say:-
The said Invention relates to the combustion of gas and is intended to
secure increased illuminating power with diminished consumption of gas

page_text: хатонота щого сощрією ани ротост сотризонот mie Caroon
element.
My Invention may be applied to any union jet or other similar gas
burner, and consists in the use of a thin vertical bar or plate of solid or
hollow steel or other metallic substance placed on edge across the upper
surface of the burner and at right angles to a line intersecting the per-
forations of the burner. The vertical bar or plate may be made to rise
above the burner in a rectangular, circular, semicircular, tapering, or
other form, and it may be perforated. In order to support the vertical
bar or plate in position I make it to extend longitudinally at one end or at
both ends, so as to be caught by or inserted in a bracket or brackets
attached to a tapering socket which is set into the socket or cavity at
the extremity of a gas branch or the arm of a gaselier, and which
carries the burner. The tapering socket thus introduced between the
burner and the socket or cavity of a gas branch or the arm of a gaselier
to support the vertical bar or plate may be screw threaded either
externally or internally, or both externally and internally, if desired. I
may also support the vertical bar or plate by a bracket or snug attached
directly to or otherwise fixed upon a gas burner, gas branch, or the arm
of a gaselier. The position of the vertical plate or bar is to be deter-
mined in each application by the relative forces of the streams of gas
penetrating the perforations of the burner, and the combustion of the
carbon element. The vertical plate or bar is properly adjusted when the
flame is bright and clear. When on the contrary the flame is dull and
smoky the vertical bar or plate is not performing its work, and will
require to be moved or bent towards to or beyond the point or line
at which the forces of the opposite streams of gas neutralize each
other, and allow the gas to rise in a perpendicular direction until
the flame attains the greatest possible brightness and clearness.
And in order that the said Invention may be more particularly
described, I shall proceed to refer to the Drawings on the Sheet here-
unto annexed, the same letters of reference indicating the same or
corresponding parts throughout all the Figures.
Figure I. is a side view of the vertical bar or plate extended at both
extremities to and supported by brackets attached to a screw threaded
tapering socket prepared to fit into the socket or cavity of a gas branch,
or the arm of a gaselier; Figure II. is a side view of the vertical plate
rising in a tapering form above the burner, and perforated; Figure III. is

page_text: a vertical section of the same parts in the plane of the vertical bar or
plate; Figure IV. is a plan of the same parts, and Figure V. is a side view
of a hollow and perforated narrow vertical bar, with a transverse section
thereof.
a, is the vertical bar or plate, b is the tapering socket, c, c, are the
brackets attached to the tapering socket 6 and supporting the vertical
bar or plate a, and d is the burner carried by the tapering socket b.
Having now described the nature of the said Invention, and in what
manner the same is to be performed, I would have it to be understood that
I do not claim the separate mechanical parts which form the apparatus for
the combustion of gas used by me, but I claim the use of a perforated or
other bar or plate of steel, or other metallic substance, made, formed,
and adjusted in the manner and for the purposes herein-before described
and the more complete and perfect combustion of gas by means thereof.
In witness whereof, I, the said George Sidley Chase, have here-
unto set my hand and seal, this Fifth day of October One
thousand eight hundred and sixty-nine.
GEORGE SIDLEY CHASE. (L.S.)