Draught in Chimneys, available also for Ventilating Purposes.
Year: 1885

page_text: Draught in Chimneys, available also for Ventilating Purposes.
We WILLIAM STOBBS and EDWARD LLEWELLYN WHITE both of Palace Chambers,
9 Bridge Street Westminster London, SW in the County of Middlesex, Domestic
Engineers, do hereby declare the nature of our Invention for AN IMPROVED MODE
OF AND APPLIANCE FOR, PREVENTING DOWN DRAUGHT IN CHIMNEYS, AVAILABLE
ALSO FOR VENTILATING PURPOSES
Our Invention consists substantially in providing an improved means and
appliance whereby not only the down draft productive of the annoyance of
smoky chimneys may be averted but by the adoption of which the ventilation
of the interior of buildings may also be facilitated
In carrying out our Invention we adapt to the ordinary chimney top or cap a
central tube or pipe, preferably of metal, forming a vertical extension of the
ordinary chimney top Said central tube or pipe has a series of openings formed
circumferentially around the upper portion of same, and in a horizontal plane
Deflected wing-pieces are attached at the top of the last mentioned openings, thus
leaving a concentric space around the central tube aforesaid. To these latter are
attached hood-pieces of considerably increased area to that of the wing-pieces first
named, and so arranged as to "break joint" or form a "baffle" in relation to the
openings in the central vertical tube aforesaid
The whole contrivance or appliance above described is surmounted by a cone
shaped cover or cap and at a suitable height above the top of the central vertical
tube aforesaid Said top cover does not form a fixed portion of the appliance
according to my Invention but is connected thereto by means of helical or other
suitable springs each contained in an enclosing tube or box and a suitable number
of which are arranged around, and attached to the top of the central portion of the
apparatus Thus, by this mode of attaching said conical cap or cover, while, on
the one hand it is held securely in position when exposed to the action of the wind,
the springs aforesaid allow of the cap or cover having a certain amount of vertical
"play" or "travel This feature will be found of advantage when the operation
of sweeping or cleaning is being performed, in the event of the cleaning brush
being impelled against the said top conical cover
"

page_text: An Improved Mode of and Appliance for Preventing Down
Draught in Chimneys, available also for Ventilating Purposes.
We WILLIAM STOBBS and EDWARD LLEWELLYN WHITE, both of Palace Chambers,
9 Bridge Street Westminster, Domestic Engineers do hereby declare the nature of
this invention and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement:-
Our Invention consists substantially in providing an improved means and
appliance whereby not only the down draught productive of the annoyance of
smoky chimneys may be averted but by the adoption of which invention the
ventilation of the interior of buildings may also be facilitated In carrying out
our said Invention we adapt to the ordinary chimney top or cap a cential tube or
pipe preferably of metal, forming a vertical extension of the ordinary chimney top
Said central tube or pipe has a series of openings formed circumferentially around
the upper portion thereof and in a horizontal plane
"
"
Deflector wing pieces or plates are attached at the top of the above mentioned
openings, thus leaving a concentric belt of space around the central space before
mentioned To these " wing pieces are attached "hood pieces" of an area con-
siderably larger than that of the wing pieces aforesaid and so arranged as to
"break Joint
or form a "baffle" in relation to the openings in the central vertical
tube aforesaid.
The whole appliance or contrivance above described is surmounted by a cone
shaped cover or cap disposed at a suitable height above the top of the central
vertical tube above mentioned.
In order that our Invention may be the better understood we have appended the
accompanying sheet of drawings illustrative of our said Invention, the same letters
of reference being employed to denote like or corresponding parts in the several
views Figure 1 18 a vertical sectional elevational view of the device according to
our Invention Figure 2. a vertical elevational view, and Figure 3 a horisontal
section on line A B Figure 1 A 18 the central pipe or tube aforesaid, a the
deflected wing pieces attached at the top of the series of circumferential openings b,
c is the cone shaped cover or top above referred to as surmounting the whole
appliance Said cone shaped cover c does not form a fixed portion of the device
according to our Invention but is free to have a certain amount of play or travel
on the vertically arranged guide rods d provided with suitable casings e Thus, on
the one hand while said cone shaped cover c is held securely in its position when
exposed to the varying influences of the wind, the provision above described
whereby a certain amount of vertical travel is ensured, will be of advantage
especially, when the operation of sweeping or cleaning is being performed, in the
event of the brush or other cleaning implement being impelled against the top of
the movable cone c We may also in lieu of or in addition to the provisions d. o,
introduce vertically arranged springs contained within an enclosing tube or casing

page_text: The arrows indicate the exit course taken by the smoke, or foul air relatively
to the direction of the wind as indicated at g.
Having now particularly described and ascertained the nature of our said
Invention and in what manner the same is to be performed, we declare that what
we claim 18
The improved mode of and apparatus for preventing down draught in chimneys,
available also for ventilating purposes substantially as herein shewn and described.
D. Jam
1000
JAMES STEVENSON,
Agent for Applicants,