IMPROVEMENTS IN OVENS
Year: 1863

page_text: LETTERS PATENT to William Clark, of 53, Chancery Lane, in the
County of Middlesex, Engineer and Patent Agent, for the Invention of
"IMPROVEMENTS IN OVENS."-A communication from abroad by Jacques
Blondel, of 29, Boulevart St. Martin. Paris. Proprietor.
Sealed the 19th January 1864, and dated the 6th August 1863.
PROVISIONAL SPECIFICATION left by the said William Clark at the
Office of the Commissioners of Patents, with his Petition, on the 6th
August 1863.
I, WILLIAM CLARK, of 53, Chancery Lane, in the County of Middlesex,
Engineer and Patent Agent, do hereby declare the nature of the said Inven-
tion for "IMPROVEMENTS IN OVENS," to be as follows:-
This Invention relates to an improved portable metal oven for baking bread,
meat, and all kinds of eatables. This improved oven possesses the following
advantages over those in ordinary use:-1st, that of baking the articles in a
regular manner to any desired extent; 2ndly, producing considerable economy
of fuel, amounting to about two-thirds as compared with that usually required;
3rdly, great security against fire; 4thly, this form and arrangement of oven
renders it readily portable and useful for service on board ship; 5thly, the
heat may be easily regulated while it disperses a gentle heat around; 6thly,
this improved oven may be heated at will, either with coal, wood, or any other
fuel. This oven is represented in the accompanying Drawing.
Fig. 1, Sheet 1, represents a side view of the oven; Fig. 2 a front view,
one of the furnace doors being open; Fig. 3 shows another elevation of this
oven, the door of the oven being opened to show the interior; Fig. 4 is a
central vertical section of the oven; Fig. 5, a plan of the sole plate; and
Fig. 6, top plan of the oven. The same letters serve for all these Figures.

page_text: A, oven, properly so called, forming a single compartment, in which the
various articles are baked, such as bread, meat, or fruit; B, door for closing
the front part of oven A; C, C, doors of furnaces F F, which are placed under
the front part of the oven; the products of combustion heat the oven by
circulating through flues G placed under the sole, as seen in Fig. 5 by the
red dotted lines and arrows. The products of combustion thence rise into
vertical flues G', and continue their traverse through flues G" placed over the
oven, as represented in Fig. 6, afterwards escaping at the central chimney II;
L, L, row of bricks placed over the furnaces F, F, for the purpose of
neutralizing the heat, which at that part is greater than at any other; K,
frame furnished with a grating, on which are placed the articles to be baked;
this frame may be drawn about two-thirds of its length out of the oven in order
to allow of the articles being placed thereon; to facilitate its movement the
grating is mounted on rollers; it may also be raised and lowered by means of
racks; M, M, feet of the apparatus; O, reservoir placed over the front part
of the oven and serving to heat water for various purposes.
Sheet 2 of the Drawings represents another arrangement of oven according
to this Invention differing somewhat from the one above described.
Fig. 1 shows a front view of the oven, one of the furnace doors being
opened; Fig. 2 another elevation, the door being opened for showing the
interior; Fig. 3 is a side view of the oven; Fig. 4 a central vertical section of
the same; Fig. 5 shows a back view of the oven; Fig. 6 a plan of the sole
plate of same; while Figs. 7 and 8 represent flattened tubes filled with sand,
which may be placed over the furnace, if desired, in order to neutralize the
heat when occasion requires. The letters of reference in Sheet 1 apply also
to these Figures.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said William Clark in the Great Seal Patent Office on the 5th
February 1864.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, WILLIAM
CLARK, of 53, Chancery Lane, in the County of Middlesex, Engineer and
Patent Agent, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Sixth day of August, in the year of our Lord
One thousand eight hundred and sixty-three, in the twenty-seventh year of
Her reign, did, for Herself, Her heirs and successors, give and grant unto
me, the said William Clark, Her special licence that I, the said William Clark,

page_text: my executors, administrators, and assigns, or such others as I, the said William
Clark, 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 OVENS,"
a communication to me from abroad by Jacques Blondel, of 29, Boulevart
St. Martin, Paris, Proprietor, upon the condition (amongst others) that I, the
said William Clark, my executors or administrators, by an instrument in
writing under ny, or their, or one of their hands and seals, should par-
ticularly 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 Clark, 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,
reference being bad to the Sheet of Drawings hereunto annexed, and to the
letters and figures marked thereon (that is to say) :-
This Invention relates to an improved portable metal oven for baking bread,
meat, and all kinds of eatables. This improved oven possesses the following
advantages over those in ordinary use:-1st, that of baking the articles in a
regular manner and to any desired extent; 2ndly, producing a considerable
economy of fuel, amounting to about two-thirds as compared with that usually
required; 3rdly, great security against fire; 4thly, the form and arrangement
of the oven renders it easily portable and useful for service on board ship;
5thly, the heat may be easily regulated while it disperses a gentle heat around;
6thly, this improved oven may be heated at will, either with coal, wood, or
any other fuel. This improved oven is represented in the accompanying
Drawings.
Fig. 1 represents a side view of the oven; Fig. 2 a front view, one of the
furnace doors being opened; Fig. 3 shows another elevation of this oven, the
door of the oven being opened to show the interior; Fig. 4 is a central
vertical section of the oven; Fig. 5, plan of the sole plate; and Fig. 6, top
plan of the oven.
The following Figures represent a modified arrangement of oven, the same
letters of reference indicating the same parts in all the Figures.
Fig. 7 shows a front view of the oven, one of the furnace doors being
opened; Fig. 8, another elevation, the oven door being opened for showing

page_text: the interior; Fig. 9 is a side view of the oven; Fig. 10, a central vertical
section of same on line 1, 2, Fig. 12; Fig. 11 shows a back view of the oven;
Fig. 12, a plan of the sole plate of same; while Figs. 13 and 14 represent a
flattened tube filled with sand, which may be placed over the furnace, if
desired, in order to neutralize the heat when occasion requires.
A, oven, properly so called, forming a single compartment in which the
various articles are baked, such as bread, meat, or fruit; B, door for closing
the front part of oven A ; C, C, doors of furnaces F, F, which are placed
under the front part of the oven. The products of combustion heat the oven
by circulating through flues G placed under the sole, as seen in Fig. 5 by the
lines and arrows. The products of combustion thence rise into vertical flues G₁
and continue their traverse through flues G placed over the oven, as repre-
sented in Fig. 6, afterwards escaping at the central chimney H; L, L, row's
of bricks placed over the furnaces F, F, for the purpose of neutralizing the
heat, which at that part is greater than at any other; K, frame furnished with
a grating, on which are placed the articles to be baked; this frame may be
drawn about two-thirds of its length out of the oven in order to allow of the
articles being placed thereon; to facilitate its movement the grating is
mounted on rollers, it may also be raised and lowered by means of racks;
M, M, feet of the apparatus; O, reservoir placed over the front part of the
oven, and serving to heat water for various purposes.
Having described the nature of this Invention, and the manner of performing
the same, I declare that what I claim as the Invention to be protected by the
herein-before in part recited Letters Patent is, the improvements in ovens for
baking bread, meat, potatoes, chesnuts, and other articles, as herein-before
described and represented in the Drawings annexed.
In witness whereof, I, the said William Clark, have hereunto set my
hand and seal, this Third day of February, in the year of our Lord One
thousand eight hundred and sixty-four.
Witness,
W. G. E. SwINNOCK,
53, Chancery Lane,
London.
W. CLARK. (L.B.)