AN IMPROVED MEANS OF ENSURING DRAUGHT IN SMOKE FLUES OR CHIMNIES
Year: 1856

page_text: LETTERS PATENT to Eugene Armand Roy, John Archibald Hall, and
William Thomas Binns, all of Camden Town, in the County of Middle-
sex, for the Invention of "AN IMPROVED MEANS OF ENSURING DRAUGHT IN
SMOKE FLUES OR CHIMNIES."
PROVISIONAL SPECIFICATION left by the said Eugene Armand Roy,
John Archibald Hall, and William Thomas Binns at the Office of the
Commissioners of Patents, with their Petition, on the 4th September
1856.
We, EUGENE ARMAND ROY, JOHN ARCHIBALD HALL, and WILLIAM THOMAS
BINNS, all of Camden Town, in the County of Middlesex, do hereby declare the
nature of the said Invention for "AN IMPROVED MEANS OF ENSURING DRAUGHT
IN SMOKE FLUES OR CHIMNIES," to be as follows:-
For the purpose of ensuring draught according to our said Invention, we
make use of a fan constructed on the well-known principle of the screw pro-
peller, and caused to revolve in the flue or chimney, or in the pot or cow!
connected therewith, in such manner as to propel the air or gases contained
therein in a current having the direction required. When placed in a pot or
cowl, and only required to act in windy weather, a rotary motion may be
imparted to the fan by suitable drivers actuated by the wind alone, but when
required to act during calm weather, or in positions where the power of the
wind is not available, it will be necessary to connect the fan with clockwork
or other power to cause it to revolve.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Eugene Armand Roy, John Archibald Hall, and William
Thomas Binns in the Great Seal Patent Office on the 4th March
1857.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, EUGENE
ARMAND ROY, JOHN ARCHIBALD HALL, and WILLIAM THOMAS BINNS, all of
Camden Town, in the County of Middlesex, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Fourth day of September, in the year of our Lord One
thousand eight hundred and fifty-six, in the twentieth year of Her reign,
did, for Herself, Her heirs and successors, give and grant unto us, the said
Eugene Armand Roy, John Archibald Hall, and William Thomas Binns,
Her special licence, that we, the said Eugene Armand Roy, John Archibald
Hall, and William Thomas Binns, our executors, administrators, and assigns,
or such others as we, the said Eugene Armand Roy, John Archibald Hall,
& William Thomas Binns, our 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 "AN IMPROVED
MEANS OF ENSURING DRAUGHT IN SMOKE FLUES OR CHIMNIES," upon the con-
dition (amongst others) that we, the said Eugene Armand Roy, John Archibald
Hall, & William Thomas Binns, our executors or administrators, by an
instrument in writing under our, 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 Patent Office within six calendar months
next and immediately after the date of the said Letters Patent.
NOW KNOW YE, that we, the said Eugene Armand Roy, John Archibald
Hall, and William Thomas Binns, do hereby declare the nature of our said
Invention, and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement:-
For the purpose of ensuring draught, according to our said Invention, we
make use of a fan constructed on the well-known principle of the screw pro-
peller, and caused to revolve in the flue or chimney, or in the pot or cowl
connected therewith, in such manner as to propel the air or gases contained
therein in a current having the direction required. When placed in a pot or
cowl, and only required to act in windy weather, a rotary motion may be

page_text: wind is not available, it will be necessary to connect the fan with clockwork
or other power to cause it to revolve.
DESCRIPTION OF THE DRAWINGS.
In order that our said Invention may be more clearly and perfectly under-
stood, we will now proceed to describe it with reference to the accompanying
Sheet of Drawings, representing several modes in which the same may be
carried into effect.
Fig. 1 represents a vertical section of a chimney top, with revolving cowl,
having our Invention applied thereto; and Fig. 2, an elevation of the same as
it would appear if viewed at right angles to the foregoing Figure. a represents
the chimney top, to which is attached the arched bar b, terminating in the
point c, upon which is suspended the cowl d, capable of revolving freely upon
the point as a pivot. A driver, formed of two inclined vanes e and f, fixed in
the manner of the vanes of a screw propeller on the bar g, revolves upon the
pin h, supported by the bar i, and is attached by the tube or boss j to the screw
propeller fan k, the vanes of which are inclined in the same direction as those
of the driver.
From an inspection of the Drawing it will be seen that the cowl, acting in
the usual manner, will invariably present its back to the wind, which, acting
on the inclined vanes e and f of the driver, will cause it to revolve and carry
with it the propeller k, which being placed within the mouth of the cowl will,
by its rotation, give an outward motion to the air or gases contained therein,
and thus produce a corresponding upward draught in the chimney with which
it is connected.
Figs. 3 and 4 are respectively a vertical section and an elevation of an
arrangement of chimney top, in which the screw propeller fan k is fixed upon
the vertical spindle l, supported by the bars m, and carrying a turn-cap n
of the ordinary construction, whereby, by the action of the wind, it is caused
to revolve in the direction necessary for ensuring an upward draught in the
chimney upon which it is placed.
Fig. 5 is a front elevation, shewing an application of the screw fan actuated
by clockwork to that part of a chimney or flue situated near to an ordinary
fire-place, and Fig. 6 a vertical section of the same. In this arrangement
the actuating clockwork is contained in a case or box o, and communicates
the required rotary motion through the shaft p and wheels 9 to a vertical
shaft l, suitably supported in the chimney, and carrying the screw k, which by

page_text: its rotation gives the required upward current to the air or gases contained in
the chimney.
Having now particularly described and ascertained the nature of our said
Invention, and in what manner the same may be performed, we would have it
understood that we do not confine ourselves to the methods represented of
causing the screw propeller fan employed for the purpose of ensuring draught
in smoke flues or chimnies to revolve, as any other suitable methods or
arrangements may be employed for that purpose, but that we claim, as of
our Invention, the use or employment of a revolving fan constructed on the
principle of the screw propeller, for the purpose of ensuring draught in
smoke flues or chimnies.
In witness whereof, we, the said Eugene Armand Roy, John Archibald
Hall, and William Thomas Binns, have hereto set our hands and seals,
this Fourth day of March, A.D. 1857.
EUGENE ARMAND (L.S.) ROY.
JOHN ARCHIBALD (L.S.) HALL.
WILLIAM THOMAS (L.S.) BINNS.