AN IMPROVED CON- STRUCTION OF DOMESTIC FIRE-STOVE FOR ECONOMIZING FUEL AND PRODUCING A BETTER RADIATION OF HEAT
Year: 1873

page_text: LETTERS PATENT to Thomas Parkin Moorwood, of the Firm of
Marshall, Watson, and Moorwood, Harleston Iron Works, Sheffield,
in the County of York, for the Invention of "AN IMPROVED CON-
STRUCTION OF DOMESTIC FIRE-STOVE FOR ECONOMIZING FUEL AND PRODUCING
A BETTER RADIATION OF HEAT."
Sealed the 16th May 1873, and dated the 24th March 1873.
PROVISIONAL SPECIFICATION left by the said Thomas Parkin Moor-
wood at the Office of the Commissioners of Patents, with his
Petition, on the 24th March 1873.
I, THOMAS PARKIN MOORWOOD, of the Firm of Marshall, Watson, and
Moorwood, Harleston Iron Works, Sheffield, in the County of York, do
hereby declare the nature of the said Invention for "AN IMPROVED
CONSTRUCTION OF DOMESTIC FIRE-STOVE FOR ECONOMIZING FUEL AND PRODUCING A
BETTER RADIATION OF HEAT," to be as follows:-
This Invention relates to that class of stoves known as the "register
stove," and is an improvement upon them, and which I shall designate
by the name of "the Harleston stove."

page_text: 2
Ly improvements consist:—
Firstly. In constructing the stove so that the grate or fire-chair which
has heretofore been within the "front plate" projects or is in front of
the "front plate," and which is effected by having the bevel which in
the ordinary 66
register stoves" inclines inward towards the flue to 5
incline outward, thus enabling me to have a cavity or space between the
"front plate," as well as bringing the grate or fire-chair further into the
room; and when the grate contains fire this cavity is always filled with
hot air, and I perforate the bevel projection with ornamental holes for
the hot air to escape into the room.
Secondly. I construct upon the back side of the fire-chair projections
or "feathers," whereby a great amount of heat is conveyed into the
before-named cavity or hot air chamber from the fire-chair.
10
Thirdly. I construct an air chamber betwixt the outward projection
and the "front plate," whereby the atmospheric air enters through a 18
grating or perforations, and coming in contact with the "feathers" or
projections on the fire-chair becomes heated, it then passes round the
cavity or space before named.
Fourthly. In the construction of a second hot air chamber or box
behind the smoke box of the stove, and this second hot air chamber I 20
may carry to any height, and by means of gratings or perforations convey
the hot air which will arise from the heat of the smoke box into the
cavity before named and to rooms above, or as and where required, accord-
ing to the direction of the flue of the chimney.
By means of these improvements I am enabled to bring the fire- 28
grate further into the room, to combine with an open fire-grate an open
hot air stove, and consequently to greatly economize fuel and obtain a
better radiation of heat, and the stove being also applicable to any present
constructed fire-places where the register stoves are fixed.
.
SPECIFICATION in pursuance of the conditions of the Letters Patent, 30
filed by the said Thomas Parkin Moorwood in the Great Seal
Patent Office on the 17th September 1873.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, THOMAS
PARKIN MOORWOOD, of the Firm of Marshall, Watson, and Moorwood,
Harleston Iron Works, Sheffield, in the County of York, send greeting. 35

page_text: WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twenty-fourth day of March, in the
year of our Lord One thousand eight hundred and seventy-three, in the
thirty-sixth year of Her reign, did, for Herself, Her heirs and suc-
cessors, give and grant unto me, the said Thomas Parkin Moorwood,
Her special licence that I, the said Thomas Parkin Moorwood, my
executors, administrators, and assigns, or such others as I, the said
Thomas Parkin Moorwood, my 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 King-
dom of Great Britain and Ireland, the Channel Islands, and Isle of
Man, an Invention for "AN IMPROVED CONSTRUCTION OF DOMESTIC FIRE-
STOVE FOR ECONOMIZING FUEL AND PRODUCING A BETTER RADIATION OF HEAT,"
upon the condition (amongst others) that I, the said Thomas Parkin
Moorwood, my executors or administrators, by an instrument in writing
under my, or their, or one of their hands and seals, should parti-
cularly describe and ascertain the nature of the said Invention, and
in what 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 aftor the date of the said Letters Patent.
NOW KNOW YE, that I, the said Thomas Parkir Moorwood, do hereby
declare the nature of my said Invention, and in what manner the
same is to be performed, to be particularly described and ascertained
in and by the following statement and accompanying Sheet of Drawings
(that is to say) :-
This Invention relates to that class of stoves known as the "register
stoves," and is an improvement upon them, and which I shall designate
by the name of "the Harleston stove."
Now my improvements consist,-
Firstly. In constructing the stove so that the grate or fire-chair which
has heretofore been within the "front plate" projects or is in front
of the "front plate," and which is effected by having the bevel which
in the ordinary "register stoves "inclines inwards towards the flue to
incline outward, thus enabling me to have a cavity or space between
the "front plate," as well as bringing the grate or fire-chair further into
the room; and when the grate contains fire this cavity is always filled

page_text: with hot air, and I perforate the bevel projection with ornamental holes
for the hot air to escape into the room.
Secondly. I construct upon the back side of the fire-chair projections
or "feathers," whereby a greater amount of heat is conveyed into the
before-named cavity or hot air chamber from the fire-chair.
Thirdly. I construct an air chamber betwixt the outward projection
and the "front plate," whereby the atmospheric air enters through a
grating or perforations, and coming in contact with the "feathers" or
projections on the fire-chair becomes heated, it then passes round the
cavity or space before named.
Fourthly. In the construction of a second hot air chamber or box
behind the smoke box of the stove, and this second hot air chamber
I may carry to any height, and by means of gratings or perforations
convey the hot air which will arise from the heat of the smoke box into
the cavity before named and to rooms above, or as and where required 1
according to the direction of the flue of the chimney.
1
By means of these improvements I am enabled to bring the fire-grate
further into the room to combine with an open fire-grate an open hot
air stove, and consequently greatly economize fuel and obtain a better
radiation of heat, the stove being also applicable to any present con- 2
structed fire-places where the "register stoves are fixed.
"
In order that this my said Invention may be more clearly understood,
I have hereunto annexed one Sheet of Drawings illustrative of the same,
and have marked the same with figures and letters of reference, the
same letter referring to the same part in the various views or Figures.
Fig. 1 is an elevation with portions of the bevel projection broken
away; Fig. 2 is a vertical section of same taken through the line A, B ;
and Fig. 3 is a plan view in section taken through the line C, D.
2
At A is shewn the "front plate" with holes or apertures B for the
heated air to enter the space or cavity B¹ formed by the outward pro- 3
jection of the bevelled portion C. It will be readily observed, that by
having this bevelled portion to project outward and in front of the
"front plate," that I am enabled to bring the grate or fire-chair D
further into the room than heretofore has been accomplished with the
"register stove," and when the grate contains fire the cavity or space 3
formed between the "front plate" is filled with hot air which enters
through the holes B, and I perforate the bevel projection C with orna-.
"

page_text: mental holes or openings E, whereby the heated air can enter the room,
thus assisting the warmth and comfort of it. F are the projections or
"
"
feathers on the back of the grate or fire-chair D, of which there may
be any suitable number, and by the use of which I am enabled to convey
a greater amount of heat into the cavity or hot air chamber B¹. G is
the air chamber constructed betwixt the outward projection C and the
"front plate" A, whereby the atmospheric air enters through a grating
or perforations H, and coming in contact with the "feathers" F on the
fire-chair D becomes heated; it then passes round the cavity or space B¹
in a heated state. At K is shewn the second hot air chamber con-
structed behind the smoke box L, and this chamber I may carry to any
convenient height, and by means of gratings or perforations convey the
hot air which will arise from the heat of the smoke box into the cavity
or chamber B', and to rooms above or where required, according to the
direction of the flue of the chimney.
It will have been observed that by means of these improvements that
I am enabled to combine an open hot air stove with an open fire-grate,
thus obtaining a greater amount and better radiation of heat than
heretofore, with the economizing also of fuel.
Another great advantage resulting from my improvements is that the
stove in summer when no fire is required in the fire-grate acts as a
ventilator and cooler, for the atmospheric air entering and passing into
the cavity or chamber B³, as previously described, escapes in its cool
state through the openings E into the room.
Having thus described the nature of this my said Invention, and
illustrated by Drawings how the same may be put into practice, I would
have it distinctly understood that I do not confine myself to the preciso
details of construction as herein described and shown by the Drawings,
as modifications of the same may be made; but what I claim as of my
Invention and believe to be new is,-
Firstly. The construction of fire-stoves in such manner as to combine
with an open fire-grate an open hot air stove, in manner substantially
as shewn and described.
">
Secondly. The "feathers or projections on the back of the fire-
chair, for purposes herein set forth.
Thirdly. The construction of an atmospheric air chamber, in manner
substantially as shown and described, and a second hot air chamber

page_text: behind the "smoke box," in manner and for purposes substantially as
herein shewn and described.
In witness whereof, I, the said Thomas Parkin Moorwood, have
herounto set my hand and seal, this Tenth day of September,
in the year of our Lord One thousand eight hundred and seventy-
three.
Witness,
W*. WHITEHEAD,
Patent Agent,
Sheffield.
THOS. PARKIN MOORWOOD. (L.S.)

page_text: Filed 24th January 1874.
In the Matter of the Letters Patent granted to THOMAS PARKIN
MOORWOOD, of the Firm of Marshall, Watson, and Moorwood,
of Harleston Iron Works, Sheffield, in the County of York,
for the Invention of "AN IMPROVED CONSTRUCTION OF DOMESTIC
FIRE STOVE FOR ECONOMIZING FUEL AND PRODUCING A BETTER RADIATION
OF HEAT," bearing date the Twenty-fourth day of March One
thousand eight hundred and seventy-three.
DISCLAIMER AND MEMORANDUM OF ALTERATION filed by the
Patentee, Thomas Parkin Moorwood, in the Great Seal Patent
Office, with the Specification to which the same relates, pursuant to
the Statutes in that case made and provided.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, the said
Thomas Parkin Moorwood, send greeting.
WHEREAS Her Majesty Queen Victoria by Her Letters Patent
bearing date the twenty-fourth day of March One thousand eight
hundred and seventy-three, in the thirty-sixth year of Her reign, did

page_text: " before-named cavity or hot air chamber from the fire-chair, but to the
"
use of such projections I make no claim as forming separately any
66 part of my Invention.
"
"Thirdly. I construct an air chamber betwixt the outward projection
"and the front plate,' whereby the atmospheric air enters through a
grating or perforations and coming in contact with the 'feathers'
or projections on the fire-chair when such are used becomes heated,
" and it then passes round the cavity or space before-named.
"
Fourthly. In the construction of a second hot-air chamber, or box
"behind the smoke box of the stove, and this second hot-air chamber I 1
"may carry to any height, and by means of gratings or perforations
convey the hot air which will arise from the heat of the smoke box
"into the cavity before named and to rooms above, or as and where
"required, according to the direction of the flue of the chimney, but to
" the use of such hot-air chamber placed behind the smoke box I make 1
"no claim as forming separately any part of my Invention.
"
"
By means of these improvements I am enabled to bring the fire-
"grate further into the room, to combine with an open fire-grate an
open hot-air stove, and consequently greatly economize fuel and obtain
a better radiation of heat, the stove being also applicable to any 2
present constructed fire-places where the 'register stoves' are fixed.
66
66
.
"In order that this my said Invention may be more clearly under-
"stood I have hereunto annexed one Sheet of Drawings illustrative of
"the same and have marked the same with Figures and letters of
" reference, the same letter referring to the same part in the various 2
"views or Figures.
"Figure 1 is an elevation with portions of the bevel projection
"broken away; Figure 2 is a vertical section of same taken through
"the line A, B, and Figure 3 is a plan view in section taken through
"the line C, D.
3
"At A is shewn the front plate with holes or apertures B for the
"heated air to enter the space or cavity B¹, formed by the outward pro-
"jection of the bevelled portion C. It will be readily observed that by
"having this bevelled portion to project outward and in front of the
" "front plate' that I am enabled to bring the grate or fire-chair D 3
"further into the room than heretofore has been accomplished with the

page_text: 66
$6
"register stove,' and when the grate contains fire the cavity or space
" formed between the front plate' is filled with hot air, which enters
through the holes B, and I perforate the bevel projection C with
" ornamental holes or openings E, whereby the heated air can enter the
room, thus assisting the warmth and and comfort of it. F are the pro-
"tions or 'feathers' on the back of the grate or fire-chair D, of which
"there may be any suitable number, and by the use of which I am
"enabled to convey a greater amount of heat into the cavity or hot
"air chamber B. G is the air chamber constructed betwixt the outward
projection O and the front plate A, whereby the atmospheric air enters
" through a grating or perforations H, and coming in contact with the
" feathers' F on the fire-chair D becomes heated, it then passes round
"the cavity or space B¹ in a heated state. At K is shewn the second
"hot air chamber, constructed behind the smoke box L, and this
"chamber I may carry to any convenient height, and by means of
gratings or perforations convey the hot air which will arise from the
"heat of the smoke box into the cavity or chamber B', and to rooms
" above or where required, according to the direction of the flue A
"chimney.
of the
"It will have been observed that by means of these improvements
"that I am enabled to combine an open hot air stove with an open
fire-grate, thus obtaining a greater amount and better radiation of
"heat than heretofore with the economizing also of fuel.
66
"Another great advantage resulting from my improvements is that
* the stove in summer when no fire is required in the fire-grate acts as
a ventilator and cooler, for the atmospheric air entering and passing
"into the cavity or chamber B' as previously described escapes in its
" cool state through the openings E into the room.”
is Having thus described the nature of this my said Invention, and
"illustrated by Drawings how the same may be put into practice, I
"would have it distinctly understood that I do not confine myself to
"the precise details of construction as herein described and shewn by
"the Drawings, as modifications of the same may be made, and I do
"not claim separately as forming part of my Invention either the
" feathers or projections above mentioned, or the chamber behind the
"smoke box, or any use of such feathers or chamber otherwise than in

page_text: " combination with the front air chamber B₁ herein-before described
" but what I claim as of my Invention, and believe to be new is,-
66
Firstly. The construction of fire-stoves in such manner as to
“combine with an open fire-grate an open hot air stove in manner
substantially as shewn and described.
"
"Secondly. The construction of an atmospheric air chamber B¹ in
manner substantially as shewn and described, and a second hot air
"chamber behind the smoke box when-used-therewith in manner and for
purposes, substantially as herein shewn and described."
66
In witness whereof, I, the said Thomas Parkin Moorwood have 1
hereunto set my hand and seal, this Eleventh day of December,
in the year of our Lord One thousand eight hundred and
seventy-three.
Witness,
W. WHITEHEAD,
Patent Agent,
Sheffield.
THOMAS PARKIN MOORWOOD. (L.S.)
W. V. HARCOURT,
Solicitor-General.
Jan'. 23, 1874.