AN IMPROVED CONSTRUCTION OF CHIMNEY POT
Year: 1884

page_text: I, THOMAS ANWYL of Balham in the County of Surrey, Gentleman, do hereby
declare the nature of my invention for AN IMPROVED CONSTRUCTION OF CHIMNEY
POT, to be as follows:-
"
The object of this invention is to produce a chimney pot by the use of which
that great desideratum, the cure of smoky chimneys, is to be obtained.
In carrying out my invention I form the chimney pot for about say one-quarter
of its height in the ordinary way so as to obtain a proper base on which it may
rest and by which it may be secured to the chimney stuck. The remaining portion
of the pot I form of louvres in the mauner well known to manufacturers of this
class of earthen ware goods.
The top of the pot is closed by a flat or curved plate or by an ornamental cap
or in any other convenient manner.
Inside the pot I place a series of vertical partitions of a depth equal, or nearly
equal, to the depth of the louvre portion of the pot, and which I so arrange as to
divide the pot into three or more equal sized chambers or flues, one of which at
least will be free for the escape of the smoke, from whichever direction the wind
is blowing.
The number of the partitions may of course vary, but in general I prefer to
employ four, which are set radially at equal distances apart, but in some cases
may find it desirable to employ a greater number of partitions.
I
In this arrangement of chimney pot the current of air will strike against the
louvres on one side of the pot and be caused to take an upward direction, and they
will then be deflected sideways by the vertical partitions while the closed top will
prevent the wind blowing directly down the chimney.
The chambers or flues on the opposite sides of the partitions will thus be free for
the escape of smoke which to a certain extent will be drawn or sucked out by the
sideways deflected currents of air.
I prefer that the chimney pots shall be male of earthenware and of cylindrical
form.

page_text: I THOMAS ANWYL of Balham in the County of Surrey, Gentleman, do hereby
'declare the nature of my invention for " AN IMPROVED CONSTRUCTION OF CHIMNEY
POT," and in what manner the same is to be performed, to be particularly described
and ascertained in and by the following statement:-
The object of this invention is to produce a chimney pot by the use of which
that great. desideratum the cure of smoky chimneys, is to be attained.
In carrying out my invention I form the chimney pot with louvres, and I close
the top of the pot in any suitable manner. Inside the louvre portion of the pot
I place vertical partitions, set preferably at right angles so that in whichever
direction the wind is blowing, there will be always free egress for the smoke.
In the accompanying drawing I liave shown at
Fig: 1 a side elevation of a chimney pot constructed according to my invention.
Fig: 2 is a sectional elevation on the line, Fig: 3, which is a sectional plan
taken on the line y y, Fig: 2.
A is the body of the pot; B are the louvres. These louvres I prefer shall be
set at an angle of 45 degrees, and shall overlap one another about one inch. The
top of the pot I close by a plate C which may be secured to the pot by a bayonet
joint, or in any other convenient manner.
Inside the louvre portion of the pot, I place a series of vertical partitions D, so
as to form a number of equal-sized chambers or flues.
The number of these partitions may vary, but in general I prefer to employ four
which are set radially at equal distances apart as seen at Fig: 3, but in some cases
I may find it desirable to employ a greater, or even a less number of partitions.
A chimney pot constructed as above described will act as follows:-Any direct
currents of air which may strike against the pot will first strike on the louvres and
if they enter the pot will be caused to take an upward direction, and will strike
against the partitions and be deflected outwards laterally back through the louvres.
The closed top will not only assist this outward course of any currents of air
which enter the pot, but will absolutely prevent the wind blowing directly down
the chimney.
In this way when the wind blows on one side of the partitions, the chambers or
flues on the opposite side will be free for the egress of smoke, which, to a certain
extent will be drawn or sucked out by the laterally deflected currents of air.
I prefer that the chimney pots shall be made of earthenware and of cylindrical
form.
Having now particularly described and ascertained the nature of my said
Invention and in what manner the same is to be performed 1 declare that what
I claim is
In a chimney pot, the combination of louvres B closed top C, and vertical
partitions D substantially as and for the purpose set forth.