IMPROVEMENTS IN AND APPLICABLE TO CERTAIN DESCRIPTIONS OF CLOSE KITCHEN RANGES to certain Descriptions of Close Kitchens
Year: 1854

page_text: LETTERS PATENT to John Nicholson, of the City of Dublin, Engineer, for
the Invention of "IMPROVEMENTS IN AND APPLICABLE TO CERTAIN DESCRIPTIONS
OF CLOSE KITCHEN RANGES."
Sealed the 29th August 1854, and dated the 3rd March 1854.
COMPLETE SPECIFICATION filed by the said John Nicholson at the Office
of the Commissioners of Patents, with his Petition and Declaration, on
the 3rd March 1854, pursuant to the 9th section of the Patent Law
Amendment Act, 1852.
I, JOHN NICHOLSON, of the City of Dublin, Engineer, do hereby declare the
nature of the said Invention of "IMPROVEMENTS IN AND APPLICABLE TO CERTAIN
DESCRIPTIONS OF CLOSE KITCHEN RANGES," 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 Drawing hereunto annexed, and to the
letters and figures marked thereon, that is to say :-
My Invention of "Improvements in and applicable to certain Descriptions
of Close Kitchen Ranges," has for its object the saving of time and fuel in
kitchen ranges adapted for baking and boiling and also for roasting, that is to
say, in ranges which have a fire-place or grate which can be opened in front
for the purpose of roasting, and also a hot hearth or plates for baking, boiling,
and other purposes.

page_text: And my Invention with this object consists in the adaptation and applica-
tion to the grates or fire-places of such kitchen ranges of a moveable or lifting
bottom, and a lever or other suitable equivalent for raising or depressing such
moveable bottom, thereby altering the position of the fire at will, either
causing the heat to bear with greater force upon the top plates, and placing
the fire in the closest contact with all parts of the range requiring the greatest
heat, or bringing the fire forward and presenting an enlarged surface for
roasting or similar purposes.
In order, however, that my Invention may be fully understood, I will
proceed to describe the accompanying Drawing, which contains several Figures
representing the different parts of a close kitchen range constructed according
to my Invention.
Figure 1 is a front elevation; Fig. 2, a plan view shewing the top plates;
Fig. 3 is a horizontal section taken through the boiler fire-place and oven;
Fig. 4 is a vertical section through the line X, X, of Fig. 1, shewing the
moveable bottom depressed; the dotted lines shew the bottom in its elevated
or raised position; and Fig. 5 is a separate view of the grate or fire-place, the
doors being open for the purpose of shewing the moveable bottom lifted up.
A, is the chimney piece; B; the cove plates, sides, and back; C, the top
frame; D, the moveable plates with stew hole; E, the boiler; F, the oven;
G, feeding doors of fire-place; H, doors of roasting fire; I, the cleaning
doors of same; K, lever for lifting the bottom of the fire-place, having its
fulcrum at ; L is the lifting or moveable bottom, having its fulcrum at 7;
M, are the front bars of the fire-place; N, flue passing over boiler; a similar
flue passes over the oven F; O are the side cheeks of the fire; Q are the
side flues of the boiler and oven. The flue N, passing over the boiler, makes
additional provision for allowing the heat of the fire to act on the boiler, and
when any particular portion of the range requires to be accelerated in its
operations, the whole force of the fire can be employed upon it by turning a
damper..
In case it is desired to direct the heat of the fire on to the top plates D,
and bring the fire in the grate into the closest contact with all parts of the
range requiring the greatest heat, the doors H of the roasting fire are closed,
the handle K* of the lever K is depressed, and the moveable bottom L is
elevated to the position shewn in Fig. 5.
In case it is desired to use the fire for roasting purposes, the doors H are
opened, the handle of the lever K is elevated, and the moveable bottom is
thereby depressed, which provides an enlarged surface for roasting, and at the

page_text: same time the movement of the bottom brings forward and acts beneficially
on all the fire in the grate.
Having thus described the nature of my Invention, and in what manner
the same is to be performed, I would have it understood, that I do not mean
or intend to confine myself to the precise forms and arrangements of the
parts shewn and described, and I would remark that my improvements may be
applied with advantage to some close kitchen ranges in ordinary use.
But what I claim as of my Invention is, the adaptation and application
to the fire-places of certain close kitchen ranges of a moveable or lifting
bottom, and a lever or other suitable equivalent for raising and depressing
such bottom, as described.
In witness whereof, I, the said John Nicholson, have hereunto set my
hand and seal, this Second day of March, One thousand eight hundred
and fifty-four.
JOHN NICHOLSON. (L.S.)
Signed, sealed, and delivered in the presence of
JOHN NETTLETON,
5, Malpas Street,
Dublin.