IMPROVE- MENTS IN PETROLEUM OR HYDROCARBON COOKING STOVES."
Year: 1875

page_text: LETTERS PATENT to David Pitcairn Wright, of Birmingham, in the
County of Warwick, Manufacturer, for the Invention of "IMPROVE-
MENTS IN PETROLEUM OR HYDROCARBON COOKING STOVES."
MENTS IN PETROLEUM OR HYDROCARBON COOKING STOVES."
PROVISIONAL SPECIFICATION left by the said David Pitcairn Wright
at the Office of the Commissioners of Patents, with his Petition,
on the 15th April 1875.
I, DAVID PITCAIRN WRIGHT, of Birmingham, in the County of
Warwick, Manufacturer, do hereby declare the nature of the said
Invention for "IMPROVEMENTS IN PETROLEUM OR HYDROCARBON COOKING STOVES,”
to be as follows:-
-
This Invention of improvements in petroleum or hydrocarbon cooking
stoves has for its object the facilitating the lighting, triming, and
cleansing, and rendering the general management of these stoves more
easy and certain than heretofore.
This is accomplished in the following manner :-In place of attaching
the perforated plate or wire gauze, which acts as a wind guard to the

page_text: cone, and which greatly interferes with the lighting, cleaning, and
triming of the stove, the wind guard is attached to the burners, and
the cone to the cylinder, and thus the cone and cylinder are removed
and replaced with the greatest facility for any purpose required.
The exact height of the cone from the burner, a matter of the
greatest importance to the proper burning of these stoves, and the exact
position of the cones with reference to the burner is secured not as
heretofore by the uncertain method of a shit in the wind guard, through
which the burner has to be inserted every time the cone is removed, and
which is liable to accumulate dirt, but by fixed projections on the cone
plate, using on and projecting on each side of the handles, thereby
giving greater steadiness and-certainty.
SPECIFICATION in pursuance of thic conditions of the Letters Patent,
filed by the said David Pitcairn Wright in the Great Seal Patent
Office on the 15th October 1875.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, DAVID
PITCAIRN WRIGHT, of Birmingham, in the County of Warwick, Manu-
facturer, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Fifteenth day of April, in the year of our
Lord One thousand eight hundred and seventy-five, in the thirty-eighth
year of Her reign, did, for Herself, Her heirs and successors, give and
grant unto me, the said David Pitcairn Wright, Her special licence that
I, the said David Pitcairn Wright, my executors, administrators, and
assigns, or such others as I, the said David Pitcairn Wright, 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 PETROLEUM OR HYDROCARBON COOKING STOVES," upon the condition
(amongst others) that I, the said David Pitcairn Wright, my exc-
cutors 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

page_text: 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 imme-
diately after the date of the said Letters Patent.
NOW KNOW YE, that I, the said David Pitcairn Wright, 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:—
This Invention of improvements in petroleum or hydrocarbon cooking
stoves has for its object the facilitating the lighting, trimming, and
cleansing, and rendoring the general management of these stoves more
casy and certain than heretofore.
This is accomplished in the following manner.-In place of attaching
the perforated plate or wire gauze, which acts as a wind guard to the
cone, and which greatly interferes with the lighting, cleaning, and
trimming of the stove, the wind guard is attached to the burners, and
the cone to the cylinder, and thus the cone and cylinder are removed
and replaced with the greatest facility for any purposo required.
The exact height of the cone from the burner is a matter of the
greatest importance to the proper burning of these stoves, and the exact
position of the cones with reference to the burner is secured not as
heretofore by the uncertain method of a slit in the wind guard, through
which the burner has to be inserted every time the cone is removed, and
which is liable to accumulate dirt by fixed projections on the conc
plate resting on and projecting on each side of the handles, thereby
giving greater steadiness and certainty.
Having thus described the nature of my said Invention, I declare that
what I claim and desire to be secured to me by the herein-before in part
recited Letters Patent is, "The Improvements in Petroleum or Hydro-
carbon Cooking Stoves," substantially as herein-before described.
In witness whereof, I, the said David Pitcairn Wright, have here-
unto set my hand and seal, this Fourteenth day of October, in
the year of our Lord One thousand eight hundred and seventy-
five.