Improvements in Kitchen Ranges
Year: 1896

page_text: Date of Application, 12th Sept., 1896
Complete Specification Lelt, 11th May, 1897-Accepted, 19th June, 1897
Improvements in Kitchen Ranges.
THE MASBRO FOUNDRY Co. LD. Holmes, Rotherham, Tronfounders, and HENRY
BOARDMAN, 40 Percy Street Rotherham, Artist and Draughtsman do hereby declare the
nature of this invention to be as follows:-
This invention relates to certain improvements on an invention for which Letters
Patent were granted to The Masborough Foundry Coy. Ld. dated October 28th 1895,
No. 20309. The object is to provide a bottom grate that can be raised or lowered
and that will remain in any desired position without the aid of racks, catches, or
balance weights of any description.
In carrying out the invention we construct the bottom grate with one or more
extensions below it, forming wings or legs which take a bearing on a similar number
of inclined planes or slightly curved surfaces, whilst the plate upon which the back
of the bottom grate rests is set at such an angle or curve as may be necessary to keep
the grate in any position relatively to the position of the extentions on the planes or
curved surfaces, and the front bars of the fire-place.
Accordingly as the bearing of the extension pieces under the bottom grate is moved
backwards or forwards on the planes or curved surfaces, so the centre of gravity of
the bottom grate and its contents becomes altered, causing the bottom grate to
remain in any desired position.
We prefer to use two pairs of extension pieces and inclined planes or curved
surfaces, each pair hearing at similar points on opposite sides of the bottom grate;
the planes or curved surfaces which bear the points of the extension pieces nearest
the front of the bottom grate require to be more inclined than those which give a
bearing to points further away from the front of the bottom grate.
It may be necessary to form slight grooves or undulations on the carrying surfaces
to increase the friction of the parts in contact. There is provision in the front of the
bottom grate or at the extremity of one of the extension pieces to receive a lever or
some similar tool by which the grate can be raised or lowered.
Dated this 11th day of September 1896
THE MASBRO' FOUNDRY COMPANY LIMITED of Holmes, Rotherham in the County
of York, Ironfounders and HENRY BOARDMAN of 40 Percy Street Rotherham,
aforesaid, Designer, do hereby declare the nature of this invention and in what manner
the same is to be performed, to be particularly described and ascertained in and by the
following statement:-
This invention has for its object, to provide a self-supporting bottom grate, that

page_text: can be adjusted to any desired height, so as to increase, or diminish the size of the
fire, and that will remain in position, without the aid of catches, racks, or other
movable supports.
This invention, and the manner in which it can be performed will be well understood
from the following description, with reference to the accompanying drawings, in
which
Figure 1 is a front elevation with part broken away of sufficient of a kitchen range
to illustrate the application of this invention thereto.
Figure 2, is a similar transverse section, shewing the bottom grate in three different
positions.
Like letters of reference, indicate like parts in all the figures of the drawings.
According to this invention, the bottom grate bars connected together to form a
bottom grate A, rest at back upon a plate B running along the rear and bottom of
the full space F, the said bottom grate A being provided at its underside with
prolongations a, b which respectively bear upon the curved radial supports or
tracks D, E forming the front bearing of the said bottom grate A. enabling it to
maintain any position to which it may be brought.
The front part of the bottom grate A has an orifice E for the insertion of a poker
or rod for raising and lowering the said bottom grate.
The bottom grate A in Fig. 2 is shewn in its lowest position by drawn lines in
which position the prolongation a alone rests upon the track D.
The medium and highest positions are indicated by dotted lines, in the former
position, both the prolongations "a" and "b" rest upon their respective tracks D
and E, while in the latter position the prolongation "6" alone rests upon the
track E.
In every position one or other, or both of these prolongations form the front
support of the bottom grate A, the plate B (which is preferably curved) forming the
rear support.
Although we shew two prolongations only in the accompanying drawings, we
wish it to be understood, that a greater number can be employed if desired.
Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed, we declare that what we
claim is :-
In a kitchen range the combination with an adjustable grate bottom of two or
more prolongations, depending upon curved radial supports, substantially as and for
the purpose herein before described with reference to the accompanying drawings.
THE MASDRO FOUNDRY CO., LTD.,
T. M. ELLIS
A. HABERSHON
} Directors.
HENRY BOARDMAN.