AN IMPROVED CHIMNEY OR GLASS POR GAS BURNERS
Year: 1864

page_text: LETTERS PATENT to Richard Archibald Brooman, of 166, Fleet Street,
in the City of London, Patent Agent, for the Invention of "AN
IMPROVED CHIMNEY OR GLASS POR GAS BURNERS."-A communication from
abroad by Alexandre Perié, of Paris, France.
Sealed the 28th October 1864, and dated the 30th April 1864.
PROVISIONAL SPECIFICATION left by the said Richard Archibald Brooman
at the Office of the Commissioners of Patents, with his Petition, on the
30th April 1864.
I, RICHARD ARCHIBALD BROOMAN, of 166, Fleet Street, in the City of
London, Patent Agent, do hereby declare the nature of the said Invention
for "AN IMPROVED CHIMNEY OR GLASS FOR GAS BURNERS," to be as follows:-
This improved glass is bi-cylindrical, or composed of two cylinders, one of
larger diameter for the body of the glass or tube, and the other of a smaller
diameter for the chimney or top of the glass. The improved glass is repre-
sented in elevation, one half in section in Figure 1, and in top view in
Figure 2; Figure 3 is a view of the glass as seen from below.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Richard Archibald Brooman in the Great Seal Patent Office on
the 29th October 1864.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, RICHARD
ARCHIBALD BROOMAN, of 166, Fleet Street, in the City of London, Patent
Agent, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Thirtieth day of April, in the year of our Lord
One thousand eight hundred and sixty-four, in the twenty-seventh year of
Her reign, did, for Herself, Her heirs and successors, give and grant unto
me, the said Richard Archibald Brooman, Her special licence that I, the said
Richard Archibald Brooman, my executors, administrators, and assigns, or such
others as I, the said Richard Archibald Brooman, 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 Inven-
'tion for "AN IMPROVED CHIMNEY OR GLASS FOR GAS BURNERS," (communicated
to me from abroad by Alexandre Perié, of. Paris, France,) upon the condition
(amongst others), that I, the said Richard Archibald Brooman, 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 Richard Archibald Brooman, 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 thereof, reference being had to the Drawings hereunto
annexed, that is to say:-
The object of this Invention is to produce a steadier, purer, and more
brilliant flame, while at the same time consuming less gas than heretofore.
The improved glass or chimney is bi-cylindrical, or composed of two
cylinders, one of larger diameter for the body of the glass or tube, and the
other of a smaller diameter for the chimney proper, or top of the glass.
Figure 1 of the accompanying Drawings is an elevation of one of these
improved glasses; Figure 2 is a bottom plan or view as seen from below;
Figure 3 a vertical section, and Figure 4 a plan or top view.

page_text: b
The body a of the glass or tube is cylindrical, and suddenly narrows at top,
as shewn, to join the chimney proper or top 6 of the glass, which is likewise
cylindrical, and is of smaller diameter than the body a. I do not limit myself
to the respective diameters or to the respective heights shewn in the
Drawings of the body a and chimney or top 6 of the glass, as they may be
varied as required, provided the part 6 be always of smaller diameter than the
part a.
b
And having now described the nature of the said Invention, and in what
manner the same is to be performed, I declare that I claim, constructing
chimneys or glasses for gas-burners as herein-before described and represented
in the accompanying Drawings.
In witness whereof, I, the said Richard Archibald Brooman, have here-
unto set my hand and seal, this Twenty-ninth day of October, One thou-
sand eight hundred and sixty-four.
R. A. BROOMAN. (L.S.)