IMPROVE- MENTS IN ROTATING COOKING APPARATUS TO BE USED IN OVENS, OR IN
Year: 1875

page_text: LETTERS PATENT to William Pitt Brook, of De Crespigny Park,
Denmark Hill, and Matthew Wilson, of Loughboro' Road, both in
the County of Surrey, Esquires, for the Invention of IMPROVE-
MENTS IN ROTATING COOKING APPARATUS TO BE USED IN OVENS, OR IN
Sealed the 27th July 1875, and dated the 29th January 1875.
PROVISIONAL SPECIFICATION left by the said William Pitt Brook
and Matthew Wilson at the Office of the Commissioners of Patents,
with their Petition, on the 29th January 1875.
We, WILLIAM PITT BROOK, of De Crespigny Park, Denmark Hill, and
MATTHEW WILSON, of Loughboro' Road, both in the County of Surrey,
Esquires, do hereby declare the nature of the said Invention for
IMPROVEMENTS IN ROTATING COOKING APPARATUS TO BE USED IN OVENS, OR IN
COMBINATION WITH STOVES, KITCHENERS, OR THE LIKE," to be as follows:-
Our said Invention relates to apparatus consisting of a revolving plate
or two or more such plates fitted in an ordinary domestic oven or other
oven, or-placed upon the said oven, or over or at the side of a fire-place,
.

page_text: and caused to rotate automatically, the said apparatus being designed for
baking such articles as are ordinarily baked in ovens, and for boiling
water, and for other like purposes.
In applying our said Invention to an ordinary oven, such as are usually
constructed in a domestic kitchen range or other like oven, we fit in the
centre of the same a vertical shaft or spindle, upon which we mount the
said plate or plates. Upon one of the said plates we form teeth, or we
place a separate toothed wheel on the said shaft, the said teeth or wheel
being geared with a pinion fixed on a horizontal shaft which forms part
of or is connected with clockwork mechanism, whereby the said shaft
with the plate or plates is rotated.
:
The articles or substances to be baked are placed upon the said plate
or plates, and by the revolutions of the same are kept continually moving
in the oven, so that all parts of them are equally cooked, and there is no
danger or possibility of over cooking or burning any part while the other
parts are insufficiently baked.
When this apparatus is applied to the oven of an ordinary kitchen
range or kitchener we prefer that the clockwork mechanism should be
arranged in the space below the said oven, but if desirable: the said
mechanism may be arranged at the top or side of the oven. The
shaft of the clockwork may be provided with a fly wheel for regulating
its motion.
Instead of clockwork we may use a weight or the apparatus com-
monly applied to spits for roasting large joints of meat, or any other
suitable motor.
'
.
For heating water or boiling meat, vegetables, and the like wo prefer
that a revolving plate should be arranged at the top of the oven, and
project therefrom over the fire. The saucepans or other utensils or
vessels are placed upon the said plate near its periphery, and by the
revolutions of the said plate all of the vessels are alternately subjected
to and withdrawn from the fire, and will thereby. be gradually heated
and kept either simmering or boiling with a uniformity of temperature
which will be found highly beneficial to the article or substances being
cooked.

page_text: tageous in many respects. The proper baking or boiling of any substanco
or article may be accomplished with perfect accuracy without waste of
fuel, and with very little attention. The waste and discomfort occasioned
by the spoiling of meat, poultry, pastry, and the like, and by the-
improper boiling of vegetables and other articles which now frequently
and almost unavoidably occur will be altogether prevented, and the
articles or substances cooked will be more palatable, and present a nicer
appearance when brought to table than when cooked by the appliances
now in use.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said William Pitt Brook and Matthew Wilson in the
Great Seal Patent Office on the 28th July 1875.
:
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, WILLIAM
PITT BROOK, of De Crespigny Park, Denmark Hill, and MATTHEW
WILSON, of Loughboro' Road, both in the County of Surrey, Esquires,
send greeting.
,
WHEREAS. Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twenty-ninth day of January in the
year of our Lord One thousand eight hundred and seventy-five, in
the thirty-eighth year of Her reign, did, for Herself, Her heirs and
successors, give and grant unto us, the said William Pitt Brook and
Matthew Wilson, Her special licence that we, the said William Pitt
Brook and Matthew Wilson, our executors, administrators; and assigns,
or such others as we, the said William Pitt Brook and Matthew Wilson;
our 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,
usc, exercise, and vend, within the United Kingdom of Great Britain
and Ireland, the Channel Islands, and Isle of Man, an Invention for
"IMPROVEMENTS IN ROTATING COOKING APPARATUS TO BE USED IN OVENS, OR IN
COMBINATION WITH STOVES, KITCHENERS, OR THE LIKE," upon the condition
(amongst others) that we, the said William Pitt Brook and Matthew.
Wilson, our exccutors or administrators, by an instrument in writing
under our, or their, or one of their hands and seals, should particularly
describe and ascertain the nature of the said Invention, and in what
'
'
.
"

page_text: 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 we, the said William Pitt Brook and Matthew
Wilson, do hereby declare the nature of our 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:-
Our,said Invention relates to apparatus consisting of a revolving plate
or two or more of such plates fitted in an ordinary domestic oven or
other oven, or placed upon the said open, or over or at the side of a fire-
place, and caused to rotate automatically, the said apparatus being
designed for baking such articles as are ordinarily baked in ovens, and
for boiling water, and for other like purposes.
In the accompanying Drawing we have illustrated the application of
our Invention, with various modifications, to an ordinary kitchen range.
Figure 1 is a front elevation of part of a range or kitchener provided
with our improved apparatus.
. Figure 2 is a front elevation of part of a range illustrating a modifi-
cation of the said Invention.
Figures 3 and 4 illustrate other modifications of the said Invention.
Like letters indicate the same parts. throughout the Drawing.
A is the fire-place or grate; B is the oven. We fit centrally in said
óven a revolving plate, or two or more of such plates. In Figure 1 we
have shewn two plates a, a¹. The lower plate a is fitted to turn upon a
pin or stud b. or short spindle, which projects up from the bottom of the
öven B. The upper revolving plate a' is fitted to turn upon a similar
pin or stud c fixed in a bracket or cross bar d secured in the oven as
shewn:
Upon the periphery of the said plates we form teeth a³. The said
teeth are geared with pinions e, c¹, fixed on a vertical shaft f, which is
geared by bevil wheels g, h, with a horizontal shaft i. The latter is
supported to turn freely in suitable bearings, and carries on its outer
extremity a grooved pulley j, from which a belt k extends to a pulley /
on the shaft m. The latter is furnished with a series of vanes or wings m³,

page_text: which have a rotary motion imparted to them by the draught in the
chimney. This rotary motion is through the above described mechanism
communicated to the plates a, a', in the oven; or the shaft i may form
part of or be connected with clockwork mechanism, whereby the said
5 shaft with the plate or plates in the oven will be rotated.
The articles or substances to be baked are placed upon the said
plates a, a, and by the revolutions- of the same are kept continually
moving in the oven, so that all parts of them are equally cooked, and
there is no danger or possibility of over cooking or burning any part
while the other parts are insufficiently baked.
When this apparatus is applied to the oven of an ordinary kitchen
range or kitchener we sometimes arrange clockwork mechanism in the
space below the said oven connecting it with a shaft placed in the said
space, as shewn at i, Figure 3. The said shaft is provided with bevil
pinions, which gear with teeth on the bottom plate a. In this modifi-
cation of our Invention the plates a, a', are both fixed on a central shaft
or spindle . If desirable the said clockwork mechanism may be
arranged at the top or side of the oven-B, and the shaft of the clock-
work may be provided with a fly wheel for regulating its motion; and if
desired we may dispense with the clockwork mechanism, and provide a
key or winch o to fit the end of the shaft i, and turn the same by hand.
In this instance it is obvious that the operation of the revolving
plates a, a', will not be continuous, as in the case where we employ the
above described mechanism, but this arrangement affords the means for
adjusting the said plates during the cooking of any article thercon
without opening the oven door, and thereby admitting cold air.
Instead of clockwork for operating the said plates in the oven we may
use a weight, as shewn in Figure 2. In this modification of our Inven-
tion the weight p is attached to one end of a cord or chain q, which is
passed over the pulley 1, and wound upon the drum s. The said drum is
fixed on the end of the shaft i, which is geared with the plates a, a', as
above described. When the weight p is drawn up and allowed to descend
it unwinds the cord from the drum s, causing the same and its shaft i to
revolve and actuate the said plates a, a¹; or we may use the apparatus
commonly applied to spits for roasting large joints of meat or any other
suitable motor for imparting the required rotary motion to the plates in
the oven

page_text: In Figure 4 the top and bottom plates 'a, a', are connected by a frame
consisting of two or more upright bars a', and a cross bar a³. The bottom
plate a turns on the pin or stud 6 in the bottom of the oven, and the
top cross bar on the pin or stud c at the top of the oven. The bottom
plate has teeth. on its periphery, and gears with the pinion e on the
vertical shaft f.
For heating water or boiling meat, vegetables, and the like we prefer
that a revolving plate should be arranged at the top of the oven, and
project therefrom over the fire. The saucepans or other utensils or
vessels are placed upon the said plate near its periphery, and by the
revolutions of the said plate all of the vessels are alternately subjected
to and withdrawn from the fire, and will thereby be gradually heated
and kept cither simmering or boiling with a uniformity of temperature
which will be found highly beneficial to the articles or substances being
cooked: The said revolving plates may be operated by any of the motors
and devices or arrangements of mechanism above described, or by other
-suitable and convenient means.
Our improved apparatus may be applied to ovens of any size, whether
for domestic or manufacturing purposes. It will be found very advan-
tageous in many respects. It allows the proper baking or boiling of any
substance or article to be accomplished with accuracy, without waste of
fuel, and with very little attention. It affords the means whereby tho
waste and discomfort occasioned by the spoiling of meat, poultry, pastry,
and the like, and by the improper boiling of vegetables and other articles
which now frequently and almost unavoidably occur may be altogether
prevented, and whereby the articles or substances cooked will be rendered
more palatable, and present a nicer appearance when brought to the
table than when cooked by the appliances now in use.
"Having thus fully described our said Invention, and shown how the
same may be conveniently and advantageously carried into practise, we
wish it understood that we claim,-—
First. In a cooking or baking oven, or above the same, or in any
other convenient position, a plate or plates suitable for supporting the
articles to be cooked or heated, fitted to rotate upon a central axis, and
operated continuously by any suitable mechanical motor.
Second. The combination of parts composing the rotating plate or
plates, the motor actuated by the draft in the chimney, and the mechanism

page_text: described, or other suitable mechanism for connecting the motor with
the said rotating plates, as herein set forth.
Third. The combination of parts. comprising the rotating plate or
plates, and the mechanism for operating the same by a weight, as herein
set forth.
Fourth. The combination of parts comprising the rotating plate or
plates in the oven, and the motor for operating the same arranged in the
space below the oven, as herein set forth.
In witness whereof, we, the said William Pitt Brook and Matthew
Wilson have hereunto set our hands and scals, this Twenty-
'
cighth day of July, in the year of our Lord One thousand cight
hundred and seventy-five.
Witness,
JAS. EDWARDS,
8, Southampton Buildings,
London.
W. PT. BROOK. (L.S.)
(L.S.)
M. WILSON.