IMPROVEMENTS IN THE CONSTRUCTION OF DOMESTIC STOVES AND GRATES "
Year: 1883

page_text: LETTERS PATENT to Henry Thompson, of Marquess Road, Canonbury, in the
county of Middlesex, Builder, for an Invention of "IMPROVEMENTS IN THE
CONSTRUCTION OF DOMESTIC STOVES AND GRATES
"
PROVISIONAL SPECIFICATION left by the said Henry Thompson at the
Office of the Commissioners of Patents on the 14th February 1883.
HENRY THOMPSON, of Marquess Road, Canonbury, in the County of Middlesex,
Builder, " IMPROVEMENTS IN THE CONSTRUCTION OF DOMESTIC STOVES AND
GRATES,"
"
This invention relates to improvements in the construction of domestic stoves
and grates whereby the coal or other fuel is regularly supplied to the fire, the
amount of smoke escaping up the chimney greatly diminished, whilst at the same
time, a considerable economy in the consumption of fuel, as compared with stoves
and grates of ordinary construction, is effected. The fire in the improved stove or
grate is similar in appearance to the fire in an ordinary stove or grate.
The front bars, the bottom and the sides of the stove or grate are constructed
and arranged in the ordinary manner and the back which consists of a metal plate
instead of being fixed as in ordinary stoves is pivotted at the bottom and is BO
arranged as to be capable of revolving backwards from its normal upright position
into a more or less horizontal position. The said back of the stove or grate is
prolonged, at the bottom below its pivots, such prolongation acting as a weight to
counterbalance that portion of the back which is situated above the said pivots,
and by so doing tends to maintain the back in an upright position. The said
prolongation of the back of the stove or grate is provided with projections, studs
or other suitable contrivances by means of which the back can be brought into a
more or less horizontal position by passing the poker or any other suitable apparatus
below the bottom of the stove or grate, when by engaging the poker or other
apparatus with some suitable catch or attachment on the stove or grate the said
back can be retained in the desired position.
The said back turns on its pivots within a chamber at the back of the stove, and

page_text: when in an upright position forms the front side of such chamber, whilst when in
The upper
a more or less horizontal position, it forms the bottom of the same.
part of the back of the said chamber is prolonged and arranged to project between
the chamber and the lower part of the chimney, and the extremity of the said
projecting portion is arranged to turn on pivots so as to present a channel through
which the fresh fuel can be supplied to the chamber when the back of the stove or
grate has been brought to a more or less horizontal position, as hereinbefore
described, and the chamber having been supplied with the desired quantity of fuel
the said projecting portion is turned back into its normal position.
*
In some cases, instead of prolonging the back of the stove or grate below the
pivots, as hereinbefore described, the back is constructed and arranged to be moved
or raised, as required, by a rack and pinion or by any other suitable and known
mechanical contrivances, as will be well understood.
The fuel having been supplied on to the more or less horizontal back of the
stove or grate, as hereinbefore described, it is brought forward on to the fire in
the body of the grate or stove by the rising of the said back as the fuel is
consumed in the said stove or grate, such rising being caused by the action of
the said weighted prolongation or other means. Any smoke or gases evolved from
the fuel at the back of the fire is brought by the projecting portion of the back of
the said chamber into the lighted fuel and is entirely, or nearly so, consumed
hunted

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Henry Thompson in the Great Seal Patent Office on the
14th August 1883.
HENRY THOMPSON, of Marquess Road, Canonbury, in the County of Middlesex,
-Builder, "IMPROVEMENTS IN THE CONSTRUCTION OF DOMESTIC STOVES AND
GRATES
"
My said Invention relates to improvements in the construction of domestic
stoves and grates whereby the coal or other fuel is supplied to the fire from a
chamber at the back of the grate, the amount of smoke escaping up the chimney
is greatly diminished, whilst at the same time a considerable economy in the
consumption of fuel, as compared with stoves and grates of ordinary construction,
is effected. The fire in the improved stove or grate is similar in appearance to the
fire in an ordinary stove or grate.
The front bars, the bottom and the sides of the stove or grate are constructed
and arranged in the ordinary manner and the back, which consists of a metal
plate, instead of being fixed as in ordinary stoves, is pivoted at the bottom and is
so arranged as to be capable of revolving backwards from its normal upright
position into a more or less horizontal position. The said back of the stove or
grate is prolonged, at the bottom below its pivots, such prolongation acting as a
weight to counterbalance that portion of the back which is situated above the said
pivots and by so doing tends to maintain the back in an upright position. The
said prolongation of the back of the stove or grate is provided with projections,
studs or other suitable contrivances by means of which the back can be brought
into a more or less horizontal position by passing the poker or any other suitable
instrument below the bottom of the stove or grate, when by engaging the poker or
other apparatus with some suitable catch or attachment on the stove or grate, the
said back can be retained in the desired position.
The said back turns on its pivots within a chamber at the back of the stove, and
when in an upright position, forms the front side of such chamber, whilst when in
a more or less horizontal position it forms the bottom of the same.
The upper
part of the back of the said chamber is prolonged and arranged to project between
the chamber and the lower part of the chimney, and the extremity of the said
projecting portion is arranged to turn on pivots so as to present a channel through
which the fresh fuel can be supplied to the chamber when the back of the stove or
grate has been brought to a more or less horizontal position as hereinbefore
described, and the chamber having been supplied with the desired quantity of fuel
the said projecting portion is turned back into its normal position.
I will now proceed to refer to the accompanying drawings from which the nature
of my said Invention will be more clearly understood. Figure 1. is a front elevation
of a stove constructed as herein before described and Figure 2, is a vertical section
through the centre of the same. The same letters of reference indicate like parts
in both the Figures. A. is the front of the stove. B. are the front bars and C. is
the bottom. The upper part of the back of the stove is shown at D. and is pivoted
at d. D. is the weighted prolongation of the back. . is a recess in the part D'.
of the back into which the end of the poker or other instrument is engaged when
it is desired to move the back. E' is the back of the chamber E. and e. is the
hinged projecting portion of the same. In Figure 2. the back of the stove is
shown in a more or less horizontal position and the projecting portion e. of the
back of the chamber E. is shown open, that is to say, in the requisite position to
permit of the said chamber being charged with fuel. The positions of these parts

page_text: are, however, shown reversed in dotted lines, that is to say, the projecting portion 6.
is shown closed and the back D. is shown in an upright position, a position it
would assume when all the fuel had been discharged from the chamber E.
In some cases the weighted part D'. of the back D. is dispensed with, and the
back is constructed and arranged to be raised or moved as required by a rack and
pinion or by any other suitable and known mechanical contrivances as will be well
understood.
The fuel having been supplied on to the more or less horizontal back D. of the
stove or grate as hereinbefore described, it is brought forward into the fire in the
body of the grate or stove by the rising of the said back as the fuel is consumed in
the said stove or grate such rising being facilitated by the action of the weighted
prolongation D. or other means. Any smoke or gases evolved from the fuel at the
back of the fire is or are brought by the projecting portion of the back of the said
chamber into the lighted fuel and is or are entirely, or nearly so, consumed or
combusted.
Having thus described and ascertained the nature of the said Invention and the
manner in which the same is to be performed I would observe in conclusion that
what I consider novel and original and therefore desire to claim as constituting
the invention secured to me by the said hereinbefore in part recited Letters
-Patent, is-
The combination and arrangement of the pivoted back D., chamber E, and the
hinged or pivoted projecting portion e. of the back of the latter, substantially as
and for the purposes hereinbefore set forth and described.
In witness whereof I the said Henry Thompson have hereunto set my band
and seal this eleventh day of August in the year of our Lord One thousand eight
hundred and eighty three.
זמו
MHAMN