IMPROVEMENTS IN STOVE GRATES
Year: 1884

page_text: I, GEORGE WILTON CHAMBERS of Burton Weir, Rotherham in the County of
York, Stove Grato Manufacturer do hereby declare the nature of my Invention
for IMPROVEMENTS IN STOVE GRATES to be as follows:-
I stop the draught through the bottom grate of an ordinary stove grate or
kitchen range, thus converting it instantaneously into a slow-combustion stove, by
raising a flat plate, with or without a rim or raised margin, suspended under the
bottom grate by hinges, hooks, or pivots attached to the said bottom grate, or to
the sides, or back of the grate, or to the bottom bar, or to a distinct separate box,
so that when the plate is raised up it stops or checks as may be desired the
draught of air through the bottom grate. The plate when raised up may be kept
in its place by a catch, turnbuckle, bolt, or loose leg or legs, dependent below it, or
in any other way that may be most convenient.
Dated this 10th day of June 1981

page_text: I GEORGE WILTON CHAMBERS Senior Partner in the firm of George Wright & Co
of Burton Weir Rotherham in the County of York Stove Grate Manufacturers do
hereby declare the nature of my Invention for THE CONVERSION OF ORDINARY
STOVE GRATES OR KITCHEN RANGES INTO SLOW COMBUSTION GRATES OR
RANGES and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement:—
In an ordinary stove grate or range the air passes up through the bottom grate
into the fire and supports the free combustion of the coal, while what is called a
slow combustion has a solid bottom of brick, stone, or iron.
The ordinary stove-grate or range may be converted into a slow combustion by
taking out the bottom-grate and substituting a brick which involves the removal
of the whole of the fire; or by covering the bottom grate over with a loose iron
plate, which is inconvenient troublesome, and even dangerous; or by means of a
tightly-fitting ashes-pan which is expensive and seldom satisfactory.
My Invention has for its object the immediate stoppage of the draught of air
through the ordinary bottom-grate thus converting the stove-grate or range into a
slow-combustion which may at any moment be turned again, at will into a free
combustion without any difficulty or inconvenience.
1 effect this by raising an iron plate from below the ordinary bottom-grate, so
that it shall come into contact with it and thus at once check or stop the draught
of air through it. It is not necessary that it should be in immediate contact with
the whole of the bottom-grate, and I prefer that only the rim or raised margin of
the plate should be in contact with the outer portion of the bottom-grate.
There are various ways of raising this plate, of retaining it in its position, and
of lowering it again at will which it is unnecessary to describe.
Having now particularly described the nature of my said Invention, and in
what manner the same is to be performed I declare that what I claim is the
method of converting an ordinary stove-grate or kitchen range into a slow
combustion one by raising an iron plate from below the ordinary bottom grate so
that it shall so cover the under surface of the bottom grate as to stop or check the
draught of air through it, while retaining the power of restoring the fire to free
combustion at will by again lowering the said plate.
Dated this Thirtieth day of July 1884.