IMPROVEMENTS APPLICABLE TO REGENERATIVE AND OTHER GAS: FURNACES
Year: 1874

page_text: LETTERS PATENT to Francis Dixon Nuttall, of St. Helen's, in the
County of Lancaster, Glass Bottle Manufacturer, for the Inven-
tion of "IMPROVEMENTS APPLICABLE TO REGENERATIVE AND OTHER GAS:
FURNACES."
t
Sealed the 11th September 1874, and dated the 28th March 1874..
PROVISIONAL SPECIFICATION left by the said Francis Dixon Nuttall
at the Office of the Commissioners of Patents, with his Petition,
on the 28th March 1874.
.
I, FRANCIS DIXON NUTTALL, of St. Helen's, in the County of Lan-
caster, Glass Bottle Manufacturer, do hereby declare the nature of the
said Invention for "IMPROVEMENTS APPLICABLE TO REGENERATIVE AND OTHER
GAS FURNACES," to be as follows:-
:
The object of this Invention is to simplify construction, facilitate.
inspection and cleaning, and enhance durability in flues and parts con-
nected with gas producing furnaces.
As means therefor I provide the fuel feeding hopper with a sliding'
door preferably formed of sheet iron placed in an inclined position, and
:

page_text: supported by side pieces. I form the flue which leads from the producer
to the main flue of brickwork, and carry the said flue from the producer
upwards, then horizontally, and finally downwards into the main flue.
In the uptake I place a damper to shut off the gas from the producer
during inspection, cleaning, or repair. In the horizontal end of the flue
above the damper I place a door or doors so as to be able to lute the
said damper, and admit air when required. An opening is provided
above the downtake, and a man-hole at the entrance to the main flue;
the said openings are closed by doors or plates when the furnace is at
work.
Manamsonstuction and
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Francis Dixon Nuttall in the Great Seal Patent
Office on the 23rd September 1874..
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, FRANCIS
DIXON NUTTALL, of St. Helen's, in the County of Lancaster, Glass
Bottle Manufacturer, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twenty-eighth day of March, in the year
of our Lord One thousand eight hundred and seventy-four, in the thirty-
seventh ycar of Her reign, did, for Herself, Her heirs and successors, give
and grant unto me, the said Francis Dixon Nuttall, Her special licenco.
that I, the said Francis Dixon Nuttall, my executors, administrators, and
assigns, or such others as I, the said Francis Dixon Nuttall, 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
APPLICABLE TO REGENERATIVE AND OTHER GAS FURNACES," upon the 'condition
(amongst others) that I, the said Francis Dixon Nuttall, 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

page_text: man-hole doors. i, j, and j³, are used for cleaning and repairs. The
arching of the cave a strengthens the front of the producer or producers.
Having now described the nature of the said Invention, and par-
ticularized the same, I claim, the combination and arrangement of parts
substantially as described and illustrated for the purposes set forth.
In witness whereof, I, the said Francis Dixon Nuttall, have here-
unto set my hand and and seal, the Twelfth day of September, in
the year of our Lord One thousand eight hundred and seventy-
four.
FRANCIS DIXON NUTTALL. (L.S.)
In the presence of
JAMES JOHNSON,
Patent Office,
.
· 4, Clayton Square,
Liverpool.