IMPROVEMENTS IN STOVES FIREPLACES AND FURNACES
Year: 1858

page_text: LETTERS PATENT to Thomas Bartlett, of King's Road, Bedford Row,
in the County of Middlesex, M.D., for the Invention of "IMPROVEMENTS
IN STOVES FIREPLACES AND FURNACES"
Sealed the 23rd November 1858, and dated the 15th July 1858.
PROVISIONAL SPECIFICATION left by the said Thomas Bartlett at the
Office of the Commissioners of Patents, with his Petition, on the
15th July 1858.
I, THOMAS BARTLETT, of King's Road, Bedford Row, in the County of
Middlesex, M.D., do hereby declare the nature of the Invention for "IMPROVE-
MENTS IN STOVES, FIRE-PLACES AND FURNACES," to be as follows:-
This Invention has for its object improvements in stoves, fire-places, or
furnaces. For these purposes each stove, fire-place, or furnace is constructed
with two compartments, one above the other, and which for distinction may
be called the upper and lower compartment. The upper compartment has a
horizontal grating of fire bars, which it is preferred should run in a direction
from side to side of the fire-place, or diagonally, rather than in a direction
from front to back.
This horizontal grating may be made a fixture, or it may be arranged to be
fixed or retained in a higher or lower position at different times. The front of
the fire-place is formed with fire bars as heretofore, and at the bottom is a
second or lower grating or bottom to the lower compartment of the fire-place.
A portion of the grate with one or more of the fire bars is made to move in
such manner that the space constituting the lower compartment of the stove,
fire-place, or furnace may have coals introduced therein below the grating of

page_text: the upper compartment of the stove, fire-place, or furnace. The fire is lighted
in the upper compartment, and after the fire is thoroughly lighted, a portion
of the grate with one or more of the fire bars is opened, and coal is supplied
to the lower compartment, which will progressively become ignited, the gases
and products therefrom will rise up through the well-ignited fuel in the upper
compartment of the stove.
When it is desired to replenish the fire with fresh coal, the moveable portion
of the grate is opened, and by the aid of a shovel the well-ignited fuel from
the lower compartment of the stove, fire-place, or furnace is placed in the upper
compartment of the stove, and the lower compartment is then again replenished
with fresh coal.
In some cases the stove, fire-place, or furnace is divided into three compart-
ments, and in such cases there are two horizontal gratings, and the fresh
coals are placed in the middle compartment, when the well ignited fuel from
that compartment has been removed to the lower and the upper compartments.
In some cases, in place of making a stove with two horizontal gratings in the
manner described, there is a moveable bottom to a stove, fire-place, or furnace,
which, when the fire is well lighted thereon, is to be raised and retained in
position in such manner as to retain the fuel thereon nearer the upper part of
the stove, fire-place or furnace, and then another similar bottom is introduced
and fresh fuel placed thereon, the uppermost moveable bottom is then with-
drawn, and when the fire requires to be again replenished with fresh coal, the
lower one is raised up with the well-ignited fuel thereon, and another moveable
bottom introduced into the bottom of the stove, fire-place, or furnace. The
fire is to be continued to be replenished by the use of these moveable bottoms
in succession. When speedy combustion is desired, a portion of the well
ignited fuel is to be placed by the aid of a shovel on the lower moveable
bottom before the fresh coals are introduced thereon. The fuel in these
arrangements may be conveniently introduced at one side of the fire-place from
a side hopper or fuel chamber.
.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Thomas Bartlett in the Great Seal Patent Office on the
4th January 1859.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, THOMAS
BARTLETT, of King's Road, Bedford Row, in the County of Middlesex, M.D.,
send greeting.

page_text: WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Fifteenth day of July, in the year of our Lord One
thousand eight hundred and fifty-eight, in the twenty-second year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto me, the
said Thomas Bartlett, Her special licence that I, the said Thomas Bartlett,
my executors, administrators, and assigns, or such others as I, the said
Thomas Bartlett, my executors, administrators, and assigns, should at any
time agree with, and no others, from time to time and at all times there-
after during the term therein expressed, should and lawfully might make, use,
exercise, and vend, within the United Kingdom of Great Britain and Ireland,
the Channel Islands, and Isle of Man, an Invention for "IMPROVEMENTS IN
STOVES, FIRE-PLACES, AND FURNACES," upon the condition (amongst others) that
I, the said Thomas Bartlett, my executors or administrators, by an instrument
in writing under my, or their, or one of their hands and seals, should particu-
larly 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.
after the date of the said Letters Patent.
NOW KNOW YE, that I, the said Thomas Bartlett, do hereby declare the
nature of the said Invention, and in what manner the same is to be performed,
to be particularly described and ascertained in and by the following statement,.
thereof, that is to say :-
This Invention has for its object improvements in stoves, fire-places, and
furnaces. For these purposes each stove, fire-place, or furnace is constructed
with two compartments, one above the other, and which for distinction inay
be called the upper and lower compartment. The upper compartment has a
horizontal grating of fire bars, which it is preferred should run in a direction
from side to side of the fire-place, or diagonally, rather than in a direction from
front to back.
In constructing this grating, I prefer to use comparatively deep and com-
paratively narrow bars; those I have used are about ths of an inch on their
upper surface, and about one and a quarter inches deep, fixed about one and a
half inches apart, but these dimensions may be varied.
This horizontal grating may be made a fixture, or it may be arranged to be
fixed or retained in a higher or lower position at different times. The front of
the fire-place is formed with fire-bars, as heretofore, and at the bottom is a
second or lower grating or bottom to the lower compartment of the fire-place.
A portion of the grate with one or more of the fire bars is made to move in
such manner that the space constituting the lower compartment of the stove,.

page_text: fire-place or furnace may have coals introduced therein below the grating of
the upper compartment of the stove, fire-place, or furnace.
The front fire-bar or bars of the lower compartment for this purpose may be
made to turn on a hinge at one end, and to catch or fasten at the other end of
such bar or bars. Or the front bar or bars of the lower compartment may be
arranged to turn down in like manner to that practised in respect to the upper
front bar of a kitchen range, or such front bar or bars of the lower compart-
ment may, when the space is not sufficient without, be made to draw out or be
moved out of the way in any convenient manner, so long as the fresh fuel may
be conveniently introduced into the lower compartment of the combined fire-
places. The fire is lighted in the upper compartment, and after the fire is
thoroughly lighted a portion of the grate with one or more of the fire-bars is
opened, and coal is supplied to the lower compartment, which will progressively
become ignited, the gases and products therefrom will rise up through the well-
ignited fuel in the upper compartment of the stove and be burned. When it
is desired to replenish the fire with fresh coal the moveable portion of the grate
is opened, and by the aid of a shovel the well-ignited fuel from the lower com-
partment of the stove, fire-place, or furnace is removed from that compartment
and placed in the upper compartment of the stove, and the lower compartment
is then again replenished with fresh coal. It is preferred that in replenishing
the lower compartment of the fire-place with fresh fuel, there should be a
space left between the upper surface of the fresh fuel and the under surface of
the bottom grating to the upper compartment. In order to prevent the fuel
in the lower compartment of the fire-place from burning away too quickly
when it is desired only to retain a comparatively small fire, there is an under
plate (below the bottom grating of the lower compartment) used, which is
hinged at the back or made to slide into and from the back or in any con-
venient manner, so as completely to close, when desired, the air passages of the
bottom grating of the lower compartment of the fire-place. In some cases the
stove, fire-place, or furnace is divided into three compartments, and which may
be called the uppermost, middle, and lowest compartments, and in such cases
the front bar or bars with or without a portion of the grate of the middle and
lowest compartments is made to move. There are two additional horizontal
gratings, and the fresh coals are placed in the middle or lowest compartment,
or both, when the well-ignited fuel, or part thereof, from the lowest and middle
compartments has been removed to the uppermost compartment. In some
cases, in place of making a stove with two horizontal gratings in the manner
described, there is a moveable bottom of a similar make to the horizontal
grating to a stove, fire-place, or furnace, which when the fire is well lighted

page_text: thereon is to be raised and retained in position in such manner as to retain
the fuel thereon nearer the upper part of the stove, fire-place, or furnace, and
then another similar bottom is introduced at the bottom, and fresh fuel is to be
placed thereon; when the fire has ignited, the first moveable bottom or grating
is withdrawn, and when the fire requires to be again replenished with fresh
coal, the second mentioned bottom or grating is to be raised up with the well
ignited fuel thereon, and another moveable bottom or grating introduced into
the bottom of the stove, fire-place, or furnace. The fire is to be continually
replenished by the use of these moveable bottoms in succession. When speedy
combustion is desired, a portion of the well ignited fuel is to be placed by the
aid of a shovel on the lower moveable bottom before the fresh coals are
introduced thereon. In some cases three moveable bottoms are used, and in
such cases, when the fire is well lighted on one moveable bottom, it is to be
raised and retained in position in such manner as to retain the fuel thereon
nearer the upper part of the stove, fire-place, or furnace, and then two similar
bottoms are introduced, one of them into the bottom of the stove, fire-place, or
furnace, and the other into an intermediate position between the uppermost
and lowest bottoms, and fresh fuel is placed on each. The uppermost and
middle moveable bottoms are withdrawn when the fire has ignited, and when
the fire requires to be again replenished with fresh coal, the lowest moveable
bottom is again raised up with the well ignited fuel thereon, and two other
moveable bottoms introduced into the bottom and middle of the stove, fire-
place, or furnace. In some cases a portion of the well ignited fuel is to be
placed on the middle and lowest moveable bottoms before the fresh coal is
introduced thereon. The fuel in these arrangements may be conveniently
introduced at one side of the fire-place from a side hopper or fuel chamber.
In witness whereof, I, the said Thomas Bartlett, have hereunto set my
band and seal, this Third day of January, in the year of our Lord
One thousand eight hundred and fifty-nine.
Witness,
JNO. ALCOCK.
T. BARTLETT. (L.S.)