An Improved Chimney Pot.
Year: 1889

page_text: Date of Application, 12th Apr., 1889
Complete Specification Left, 25th Nov., 1889-Accepted, 11th Jan., 1890
PROVISIONAL SPECIFICATION.
An Improved Chimney Pot.
I FREDERICK MERITON of 54 Darville Road Stoke Newington in the County of
Middlesex, Estate Agent, do hereby declare the nature of this invention to be as
follows:-
The apparatus consists of an upright tube of a cylindrical or other convenient form
having at the top a cap preferably of an octagonal form with inclined overhanging
sides with openings therein.
The openings are to be covered with plates or flaps hinged at the top and hanging
vertically.
Or the cap may be reversed the inclined sides inclining inwards towards the top
and standing vertically but hinged at the bottom and having counterbalance weights
attached such that when these flaps are caused by the wind to move out of the vertical
when the force of the wind is removed the counterbalance weights enable the flaps to
regain their vertical position.
Both forms may be surmounted by a hood.
It is claimed that by this arrangement when the wind blows directly against the
chimney the flap directly opposite its line of direction closes thus preventing a down
draught in the chimney while those flaps adjoining at the sides retain their vertical
position allowing the wind to pass rapidly between it and the opening into the flue
thus tending to form a partial vacuum in the opening thus increasing the velocity of
ascension of the smoke and increasing the power of discharge of the chimney and
preventing smoke in the room.
It is also claimed that there being no bars or other connection between the flaps
internally the flue may be swept clear from soot without difficulty.
In the Drawings accompanying this Specification Figs. 1, 2 & 3 shew the arrange
ment herein first described Fig. 1 being an elevation Fig. 2 a vertical section and
Fig. 3 a horizontal section looking up Figs. 4. 5 & 6 shew the second arrangement
described Fig. 4 being an elevation Fig. 5 a plan looking down and Fig. 6 a vertical
section. In the whole of the above figures the letter A shews the position of flaps.
Dated this 12th day April 1889.
COMPLETE SPECIFICATION.
An Improved Chimney Pot.
I FREDERICK MERITON of 54 Darville Road Stoke Newington in the County of
Middlesex Estate Agent 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 :-
The apparatus consists of an upright tube of a cylindrical or other convenient form
having at the top a cap preferably of an octagonal form with inclined overhanging
sides with openings therein. These openings are to be covered with plates or flaps
hinged at the top and hanging vertically or the cap may be reversed the inclined sides
inclining inwards towards the top and standing vertically but hinged at the bottom
and having counterbalance weights or counterbalanced by a rim from the hood or
otherwise. Both forms may be surmounted by a hood.
In the Drawings left with the Provisional Specification Figs. 1. 2. & 3 show the
arrangement herein first described Fig. 1 being an elevation Fig. 2 a vertical section
and Fig. 3 a horizontal section looking up Figs. 4. 5. & 6 show the second arrange-
ment described Fig. 4 being an elevation Fig. 5 a plan looking down and Fig. 6 a

page_text: In the whole of the above figures the letter A shows the position of flaps.
It is claimed that by this arrangement when the wind blows against the chimney
the flap directly opposite its line of direction closes thus preventing a down draught
in the chimney while those flaps adjoining at the sides retain their vertical position
allowing the wind to pass rapidly between it and the opening into the flue tending to
form a partial vacuum in the opening thus increasing the velocity of ascension of the
smoke and increasing the power of discharge of the chimney and preventing smoke in
the room.
It is also claimed that there being no bars or other connection between the flaps
internally the flue may be swept clear from soot without difficulty.
Having described the nature of my invention I declare that what I claim is :—
That the flaps both vertical and looking upward are acted solely by the course of
the wind being free from any automatical construction.
Dated this 25th day of November 1889.
FREDERICK MERITŪN.