CERTAIN IMPROVEMENTS IN APPARATUS FOR WARM- ING AND VENTILATING BUILDINGS
Year: 1842

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, GEORGE
HADEN, of Trowbridge, in the County of Wilts, Engineer, send greeting.
WHEREAS Her present most Excellent Majesty Queen Victoria, by Her
Royal Letters Patent under the Great Seal of Great Britain, bearing date at
Westminster, the Fifteenth day of February, in the fifth year of Her reign,
did, for Herself, Her heirs and successors, give and grant unto me, the said
George Haden, Her especial licence, full power, sole privilege and authority,
that I, the said George Haden, my executors, administrators, and assigns, and
such others as I, the said George Haden, my executors, administrators, or
assigns, should at any time agree with, and no others, from time to time
and at all times during the term of years therein mentioned, should and
lawfully might make, use, exercise, and vend, within England, Wales, and
the Town of Berwick-upon-Tweed, and in all Her Majesty's Colonies and
Plantations abroad, and in the Islands of Jersey, Guernsey, Alderney, Sark,
and Man, my Invention of "CERTAIN IMPROVEMENTS IN APPARATUS FOR WARM-
ING AND VENTILATING BUILDINGS;" in which said Letters Patent is contained a
proviso obliging me, the said George Haden, by an instrument in writing
under my hand and seal, particularly to describe and ascertain the nature of
my said Invention, and in what manner the same is to be performed, and
to cause the same to be inrolled in Her Majesty's High Court of Chancery
within six calendar months next and immediately after the date of the said
in part recited Letters Patent, as in and by the same, reference being there-
unto had, will more fully and at large appear.
NOW KNOW YE, that in compliance with the said proviso, I, the said
Georgo Haden, do hereby declare that the nature of my said Invention, and

page_text: the manner in which the same is to be performed, are particularly described
and ascertained in and by the following description thereof, referenco being
had to the Drawings hereunto annexed, and to the letters and figures marked
thereon, that is to say:-
My Invention of Improvements in Apparatus for Warming and Ventilating
Buildings consists in the adaptation or application to the external sides of
stoves, grates, or other warming apparatus, of certain metallic plates or zigzag
pieces, which, being cast on to or otherwise fixed to the sides of the stove or
grate, increase the extent and effect of the heating surfaces and cause currents
of air to pass with considerable rapidity in close contact with these heated
surfaces, the air thereby becoming warmed, and which warmed air may then
be conducted to any room or apartment that may require its temperature
raised.
In order that my Invention may be perfectly understood, I have appended
hereto a sheet of Drawings representing various modes of carrying my Invention
into effect.
Fig. 1 is a front external elevation of a close stove of a rectangular form,
the front casing being removed; and Figs. 2, 3, 4, and 5 represent other
external views of the same, observing also that in these the outer rectangular
casing is removed. Fig. 6 is a section taken horizontally through the stove
and its air passages; the surfaces of the top and four sides of the stove,pro
furnished with projecting plates of metal a, a, a, a, which may be straight
and ranged in angles, or bent or curved in any way that may be thought most
desirable. These plates vary in projecting depth from one inch to twelve inches
or more according to the size of the stoves, and they may be arranged in any
directions and at any angles with reference to the sides that may be found
most convenient. The sides of the stove being furnished with any number of
these plates and arranged in any convenient manner, as said, the stove may
be covered or surrounded with a casing of any suitable material, which, as it
must touch the outer edges of the projecting plates a, a, a, a, will form a
number of zigzag channels. Through these channels atmospheric air is
conducted from below through apertures made for that purpose. As metals
of all descriptions are known to be good conductors of heat, the projecting
plates which are connected to the sides of the stove soon become heated by the
fire within, and the air being obliged to pass in narrow streams between these
plates soon becomes warned, and on arriving at the top may be conducted off
through a pipe or flue to any apartment that requires warming, or may bo
allowed to pass at once into the room which contains the apparatus. Straight
or bent plates are equally applicable, and. the apparatus may be also employed
for diffusing heat derived from hot water, as shewn in the horizontal section

page_text: Fig. 7, or from steam or gas. I prefer the projecting plates to be cast on to the
sides of the stove so as to form a component part thereof, but I do not confine
myself thereto, as they may be affixed to the side of the stove by hard solder.
The air to be warmed is admitted to the apparatus through suitable holes
or apertures made at the lower part of the casing or in its bottom, and
which air in passing up the narrow channels becomes warmed, and ultimately
escapes at the upper part through similar holes or flues, or may be conducted
off to some other apartment, as before mentioned. Pure atmospheric air may
be supplied to the apparatus by means of pipes or flues leading from the out-
side of the building, and, by thus causing a constant draft, ventilate the
apartment. One of the principal advantages derivable from my Invention is
the increased extent of heating surface which is obtained by the application
of the projecting plates, whereby a small stove constructed according to my
Invention may be made to give out as much or more heat than one of larger
dimensions having plane sides as at present made.
Having now described my Invention, and the manner of carrying the same
into effect, I claim as the Invention secured to me by the herein-before in
part recited Letters Patent, the application of projecting plates or pieces
placed in zigzag ranges and at any angles on the sides or surfaces of grates
or stoves or other apparatus for diffusing heat by radiation and rapid circulation
of the atmosphere.
In witness whereof, I, the said George Haden, have hereunto set my
hand and seal, the Sixth day of August, in the year of our Lord One
thousand eight hundred and forty-two.
GEORGE (L.B.) HADEN.
AND BE IT REMEMBERED, that on the Sixth day of August, in the
sixth year of the reign of Her Majesty Queen Victoria, the said George
Haden came before our said Lady the Queen in Her Chancery, and acknow-
ledged the Instrument aforesaid, and all and every thing therein contained
and specified, in form above written. And also the Instrument aforesaid
was stamped according to the tenor of the Statute made in the fifty-fifth year
of the reign of His late Majesty King George the Third.