IMPROVEMENTS IN APPLIANCES FOR ECONOMIZING THE CONSUMPTION OF FUEL."
Year: 1874

page_text: LETTERS PATENT to Edmund Hawken, of Tachbrook Street, Pimlico,
in the County of Middlesex, for the Invention of "IMPROVEMENTS
IN APPLIANCES FOR ECONOMIZING THE CONSUMPTION OF FUEL."
PROVISIONAL SPECIFICATION left by the said Edmund Hawken at
the Office of the Commissioners of Patents, with his Petition, on
the 6th October 1874.
I, EDMUND HAWKEN, of Tachbrook Street, Pimlico, in the County of
3 Middlesex, do hereby declare the nature of the said Invention for
"IMPROVEMENTS IN APPLIANCES POR ECONOMIZING THE CONSUMPTION OF FUEL," to
be as follows:-
This Invention is an improvement, and is based upon an Invention
for which Provisional Protection, No. 3889, dated November 28, 1873,
was granted to me, and consisted in introducing within the stove, grate,
or range, a removable back of such form and construction that while
much of the space ordinarily occupied by the fuel is taken up, little or
no alteration in the appearance of the fire or reduction in the radiating

page_text: surface of the fuel is produced. The ends of this removable back are
made to fit close to the cheeks of the grate, and the bottom has an
indent or space to allow of the application of a poker to clear the bottom
of the grate and to admit air from the back of the firc-bars in such a
manner that the air so admitted will pass through the fuel and sustain t
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Edmund Hawken in the Great Scal Patent Office
on the 6th April 1875.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, EDMUND
HAWKEN, of Tachbrook Street, Pimlico, in the County of Middlesex,
send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Sixth day of October, in the
year of our Lord One thousand eight hundred and seventy-four, in:
the thirty-eighth year of Her reign, did, for Herself, Her heirs and
successors, give and grant unto me, the said Edmund Hawken, Her
special licence, that I, the said Edmund Hawken, my executors,
administrators, and assigns, or such others as I, the said Edmund
Hawken, 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 APPLIANCES FOR ECONOMIZING THE CONSUMPTION OF
FUEL," upon the condition (amongst others) that I, the said Edmund
Hawken, my executors or administrators, by an instrument in writing
under my, or their, or one of their hands and seals, should par-
ticularly describe and ascertain the nature of the said Invention, and

page_text: carried into effect, I would observe in conclusion that I do not confine or
restrict myself to the precise details or arrangements which I have de-
scribed or referred to, as variations may be made therefrom without
deviating from the principles or main features of this Invention, but
what I consider to be novel and original, and therefore claim as the
Invention secured to me by the herein-before in part recited Letters
Patent is, the construction. of appliances with holes, slits, slots, or
openings therein for economizing the consumption of fuel, as herein
described and shown on the Drawings.
In witness whereof, I, the said Edmund Hawken, have hereunto 1
set my hand and seal, this Fifth day of April, in the year of
Our Lord One thousand eight hundred and soventy-five
EDMUND HAWKEN. (L.S.)