AN* UPRIGHT CELLED BOILER, APPLICABLE TO ALL HEATING PURPOSES BY HOT WATER OR OTHER FLUID
Year: 1859

page_text: LETTERS PATENT to William Henry Edward McKnight, Clerk, of
Lydiard House, near Swindon, co. Wilts, for the Invention of "AN*
UPRIGHT CELLED BOILER, APPLICABLE TO ALL HEATING PURPOSES BY HOT
WATER OR OTHER FLUID."
Sealed the 24th June 1859, and dated the 15th January 1859.
PROVISIONAL SPECIFICATION left by the said William Henry Edward
McKnight at the Office of the Commissioners of Patents, with his
Petition, on the 15th January 1859.
I, WILLIAM HENRY EDWARD MCKNIGHT, Clerk, of Lydiard House, near
Swindon, co. Wilts, do hereby declare the nature of the said Invention for
"AN UPRIGHT CELLED BOILER, APPLICABLE TO ALL HEATING PURPOSES BY HOT
WATER OR OTHER FLUID," to be as follows:-
That the boiler consists of a series of upright cells, so arranged as to obtain,
compared with their capacity, a maximum heating surface, and at the same
time to allow an unimpeded circulation of the water as it becomes heated from
the ingress to the egress pipes, by which the currents are acclerated, and the
heating medium is transmitted more rapidly through the pipes. The objects
attained are simplicity of construction, much greater efficiency of action, with
great economy of fuel.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said William Henry Edward McKnight in the Great Seal Patent
Office on the 15th July 1859..
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, WILLIAM
HENRY EDWARD MCKNIGHT, of Lydiard House, near Swindon, in the County
of Wilts, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Fifteenth day of January, in the year of our Lord
One thousand eight hundred and fifty-nine, in the twenty-second year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto me,
the said William Henry Edward McKnight, Her special licence that I,
the said William Henry Edward McKnight, my executors, administrators,
and assigns, or such others as I, the said William Henry Edward McKnight,
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 "AN UPRIGHT CELLED
BOILER, APPLICABLE TO ALL HEATING PURPOSES BY HOT WATER OR OTHER FLUID,"
upon the condition (amongst others) that I, the said William Henry Edward
McKnight, 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 William Henry Edward M°Knight,
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 thereof, reference being had to the Drawings here-
unto annexed, that is to say:-
My Invention consists in constructing a boiler with a series of upright cells,
so arranged as to obtain a maximum heating surface, and at the same time to
allow an unimpeded circulation of the water as it becomes heated from the ingress
to the egress pipes, by which the currents are accellerated, and the heating
medium transmitted more rapidly through the pipes.
The manner in which I construct my boilers will be more readily understood

page_text: by reference to the accompanying Drawings. Similar letters refer to similar
parts in all the Figures.
Figure 1 is a plan of one of my boilers through the line C, D, of Figure 2;
Figure 2 is a transverse section through the line A, B, of Figure 1;
Figure 3 is a longitudinal section through the line E, F, of Figure 1;
Figure 4 is a transverse section through the line G, H, Figure 1; Figure 5 is
a longitudinal section through the line K, L, Figure 1; and Figure 6 is a
transverse section through the line N, M, Figure 1. a, a, are the upright
cells, forming on the inside water spaces, and on the outside extended surfaces
exposed to the direct action of the fire. The cells a, a, are connected at each
end by transverse cells, that at the back extends only half way up in the
fireways, and thus forms a bridge. b, b, are the ingress pipes or passages;
and c is the egress pipe. The furnace and ash-pit may be of any approved
construction.
And having now described the nature of my said Invention, and in what
manner the same is to be performed, I declare that I do not limit myself to
the precise details herein given, as the same may be varied without departing
from the main features of my Invention; but that I claim the construction of
boilers applicable to all purposes of heating by hot water or other fluids, with
upright cells, essentially in the manner herein-before described, and represented
in the accompanying Drawings.
In witness whereof, I, the said William Henry Edward McKnight, have
hereunto set my hand and seal, this Thirteenth day of July, One
thousand eight hundred and fifty-nine.
WILLIAM HENRY EDWARD MCKNIGHT. (L.S.)