IMPROVEMENTS IN REVOLVING OVENS FOR COOKING STOVES
Year: 1871

page_text: LETTERS PATENT to William Robert Lake, of the Firm of Haseltine,
Lake, & Co., Patent Agents, Southampton Buildings, London, for
the Invention of "IMPROVEMENTS IN REVOLVING OVENS FOR COOKING
STOVES." A communication from abroad by David Curtis, of
Mishawaka, and Charles Boothe Graham, of South Bend, both in
T
-
ז'ד
PROVISIONAL SPECIFICATION left by the said William Robert Lake
at the Office of the Commissioners of Patents, with his Petition,:
on the 29th March 1871.
I, WILLIAM ROBERT LAKE, of the Firm of Haseltine, Lake, & Co.,
Patent Agents, Southampton Buildings, London, do hereby declare the
nature of the said Invention for "IMPROVEMENTS IN REVOLVING OVENS FOR
COOKING STOVES," a communication, to be as follows:-
The nature of this Invention consists in a cylindrical rotating oven
with horizontally revolving shelves within the said oven, forming part
of or attached to a cooking stove. The top plate of the stove has a
On the rear
flue underneath for the passage of the smoke and heat.

page_text: part of this plate is placed a box within which is the cylindrical
revolving oven. The smoke and heat from the aforesaid flue pass up
into the box around the oven and out through the chimney pipe. Doors
are placed in the sides of the said box through which access is gained
to the oven. Within the box on each side and immediately inside of
the doors are attached circular rims, over or around which the end of
the oven fits, the said rims forming bearings around which the oven will
revolve. The oven may be revolved in various ways either by clock-
work, by a crank, or other suitable means, or the smoke and heat may
be made use of for revolving it by attaching wings or flanges on the
outside of the oven, and so arranging a damper that the smoke and heat
will only pass up on one side of the oven and striking the said wings
or flanges will cause the oven to revolve. Attached to the collars or
rims and passing longitudinally through the oven are two metal bars,
one near the top and the other near the bottom. Circular shelves are
arranged horizontally in stands with journals or pivots having their
bearings in the said metal bars. One of the shelves in each stand is
provided with cogs on its outer periphery which gear with spiral flanges
arranged on the inside of the oven, and hence when the oven is rotated
as above set forth the shelves are also made to revolve slowly.
The above is a very important addition to all cooking stoves as any-
thing placed on the said shelves will be evenly baked or roasted. The
oven revolving makes all parts thereof nearly equally hot and in addition
the shelves revolving horizontally will insure a uniform heat to all parts
of the articles placed thereon.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said William Robert Lake in the Great Scal Patent
Office on the 25th September 1871.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, WILLIAM
ROBERT LAKE, of the Firm of Haseltine, Lake, & Co., Patent Agents, a
Southampton Buildings, London, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twenty-ninth day of March, in the year
of our Lord One thousand eight hundred and seventy-one, in the thirty-
fourth year of Her reign, did, for Herself, Her heirs and successors, give a

page_text: and grant unto me, the said William Robert Lake, Her special licence
that I, the said William Robert Lake, my exccutors, administrators,
and assigns, or such others as I, the said William Robert Lake, 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 "IMPROVE-
MENTS IN REVOLVING OVENS FOR COOKING STOVES," a communication to me.
from abroad by David Curtis, of Mishawaka, and Charles Boothe Graham,
of South Bend, both in Indiana, United States of America, upon the
condition (amongst others) that I, the said William Robert Lake, 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 Robert Lake, 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 had to the accompanying
Drawing forming a part of this Specification.
The nature of this Invention consists in a cylindrical rotating oven
with horizontally revolving shelves within the said oven forming part of
or attached to a cooking stove.
To enable others skilled in the art to which this Invention appertains
to make and use the same, I will now proceed to describe its con-
struction and operation, referring to the Drawing, in which Figure 1 is a
longitudinal vertical section of the said oven and shelves; Figure 2
shows the position of the oven on a stove; and Figure 3 is a detached
view of one of the shelves.
A represents the top plate of a stove with the flue B underneath for.
the passage of the smoke and heat. On the rear part of this plate A
is placed a box C, within which is the cylindrical revolving oven D.
The smoke and heat from the flue B pass up into the box C around the
oven D and out through the chimney pipe E; F, F, are doors in the
sides of the box C through which access is gained to the oven.
Within

page_text: the box on each side and immediately inside of the doors is attached
a circular rim a, over or around which the end of the oven D fits, said
rims forming as it were journals or bearings around or on which the
oven is to revolve. The oven may be revolved in various ways either
by clockwork as shown in the Drawing, by hand, by a crank or other
suitable means, or the smoke and heat may be made use of for revolving
it by attaching wings or flanges on the outside of the oven, and so
arranging a damper that the smoke and heat will only pass up on one
side of the oven, and strike the said wings or flanges, thereby causing
the oven to revolve. Attached to the collars or rims a, a, and passing
longitudinally through the oven are two metal bars b, b, one near the
top and the other near the bottom; G, G, represent circular shelves
arranged horizontally in stands as shown with journals or pivots d, d,
having their bearings in the metal bars b, b. One of the shelves G in
each stand is provided with cogs on its outer periphery, which gear
with spiral flanges e, e, arranged on the inside of the oven D, and hence
when the oven is rotated as above set forth the shelves are also made to
revolve slowly.
The above is a very important addition to all cooking stoves, as any-
thing placed on the said shelves will be evenly baked or roasted. The
oven revolving makes all parts thereof nearly equally hot, and in addition
the shelves revolving horizontally will insure a uniform heat to all parts
of the articles placed thereon.
Having thus fully described the said Invention as communicated to me
by my foreign correspondents I claim, a revolving oven provided with
interior horizontally revolving shelves, and attached to or forming part
of a cooking stove, substantially as and for the purposes herein set
forth.
In witness whereof, I, the said William Robert Lake, have here-
unto set my hand and seal, this Twenty-fifth day of September,
in the year of our Lord One thousand eight hundred and
seventy-one.
Witness,
W. J. LOWE.
W. ROBT. LAKE. (L.S.)