Im- PROVEMENTS IN THE MEANS OF VENTILATING AND REGULATING THE DRAFT OF CLOSE FIRE RANGES OR KITCHENERS
Year: 1867

page_text: LETTERS PATENT to Joseph Douglas, of Bloomsbury, Street,, in the
County of Middlesex, Range Manufacturer, for the Invention of "Im-
PROVEMENTS IN THE MEANS OF VENTILATING AND REGULATING THE DRAFT
OF CLOSE FIRE RANGES OR KITCHENERS."
Sealed the 28th February 1868, and dated the 29th August 1867.
PROVISIONAL SPECIFICATION left by the said Joseph Douglas at the
Office of the Commissioners of Patents, with his Petition, on the.
29th August 1867.
I, JOSEPH DOUGLAS, of Bloomsbury Street, in the County of Middlesex,
Range Manufacturer, do hereby declare the nature of the said Invention
for "IMPROVEMENTS IN THE MEANS OF VENTILATING AND REGULATING THE DRAPT
OF CLOSE FIRE RANGES OR KITCHENERS," to be as follows:-
My Invention relates to a simple and ready means of regulating the draft
of close fire ranges and ventilating the same (that is to say, the chambers in
which they are placed) so as to carry off all smell when cooking, which is at
present the great objection to the use of such close ranges. For this purpose
I make an aperture at any suitable point in the front or side of the range
above the fire and couimunicating with the flue; this opening I provide with
a door or Hap hinged or otherwise jointed of a size when open to the full

page_text: extent to fill up the whole area of the flue, this flap is held in any position by
a bent arm attached thereto having teeth or notches catching in a guide fixed
at the upper part of the aperture or it may be otherwise arranged to hold
the flap more or less open as desired. By adjusting the position of the flap
which acts both as a ventilator and damper, the draft in the flue may be.
regulated according to requirements; the flap may further be closed so as to
cut off direct communication with the room, which adjustment I adopt, except
when cooking, in which case the ventilating aperture is opened, more or less
to afford escape for any smell that may exist in the room from the range as
before mentioned. In order to improve the ventilation in the room at times
when the fire is not lighted the flap may also be shut down so as to cut
off the passage to the lower part of the flue and open wide the communication
to the chimney.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Joseph Douglas in the Great Seal Patent Office on the 29th
February 1868.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOSEPH
DOUGLAS, of Bloomsbury Street, in the County of Middlesex, Range Manu-
facturer, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-ninth day of August, in the year of our Lord
One thousand eight hundred and sixty-seven, in the thirty-first year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto me, the
said Joseph Douglas, Her special licence that I, the said Joseph Douglas, my
executors, administrators, and assigns, or such others as I, the said Joseph
Douglas, 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, 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 THE MEANS OF
VENTILATING AND REGULATING THE DRAFT OF CLOSE FIRE RANGES OR KITCHENERS,"
upon the condition (amongst others) that Ị, the said Joseph Douglas,
my executors or administrators, by an instrument in writing under my, or
their, or one of their hands and seals, should particularly 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

page_text: Patent Office within six calendar months next and immediately after the date
of the said Letters Patent.
:
NOW KNOW YE, that I, the said Joseph Douglas, do hereby declare
the nature of my said Invention, and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following
statement, reference being had to the Sheet of Drawings hereunto annexed,
and to the letters and figures marked thereon (that is to say) :-
My Invention relates to a simple and ready means of regulating the draft
of close fire ranges, and ventilating the same, that is to say, the chambers. in
which they are placed so as to carry off all smell when cooking, which is at
present the great objection to the use of such close ranges. For this purpose
I make an aperture at any suitable point in the front or side of the range
above the fire and communicating with the flue; this opening I provide with
a door or flap hinged or otherwise mounted of a size to fill up the whole area
of the flue; this flap is held in any suitable position by a bent arm attached
thereto having teeth or notches catching in a guide fixed at the upper part of
tlie aperture, or it may be otherwise arranged to hold the flap more or less
open as desired. By adjusting the position of the flap, which acts both as a
ventilator and damper, the draft in the flue may be regulated according to
requirements. The flap may further be closed so as to cut off direct commu-
nication with the room, which adjustment I adopt except when cooking, in
which case the ventilating aperture is opened more or less to afford escape for
any smell that may exist in the room from the range as before mentioned.
In order to improve the ventilation in the room at times when the firé is
not lighted the flap may also be shut down so as to cut off the passage to the
lower part of the flue and open wide the communication to the chimney.
DESCRIPTION OF DRAWINGS.
One example of the mode of carrying out my Invention is illustrated in the
accompanying Drawing, Figure 1 of which shows a front view of a plate
forming either the back or side of a close fire range provided with the draft
regulator and ventilator of my Invention, and Figure 2 a transverse vertical
section of same.
a is the plate, and 6 the aperture giving access to the flue; c is the
ventilating aperture provided with a door or flap d mounted at back of the
plate a and supported by a cross bar a'. This flap d is made of the whole
width of the flue d', and is furnished with a bent arme having ratchet teeth,
as seen taking into a guide of fixed at the upper part of the aperture c, and-by
regulating the position of the flap d by means of the arme the draft in the

page_text: flue d' is regulated as desired. In ordinary the flap d will remain closed so
as to cut off communication between the room and the flue, but when cooking
I open
the ventilating aperture c more or less by means of flap d, as shown by
the dotted lines in Figure 2, so as to allow free escape for the smell from the
room, which is a great objection to existing close fire ranges. When the fire
is not lighted, and for the purpose of improving the ventilation in the room,
the flap d is brought to the dotted position resting on the cross bar a¹ so as to
close the passage to the lower part d² of the flue d', and open free communi-
cation between the room and the chimney. The flap d, instead of being
mounted as described, may be hinged or otherwise arranged for the purpose of
regulating the size of the aperture c.
Having described the nature of my Invention, and the manner of perform-
ing the same, I declare that what I claim as my Invention to be protected by
the herein-before in part recited Letters Patent is, ventilating and regulating
the draft of close fire ranges or kitcheners in the manner herein-before
described and as represented in the accompanying Drawing.
In witness whereof, I, the said Joseph Douglas, have hereunto set my
hand and seal, this Twenty-eighth day of February, in the year of our
Lord One thousand eight hundred and sixty-eight.
JOSEPH DOUGLAS. (L.S.)