Year: 1899

page_text: I, WILLIAM BOYCE, Brandlee, Dawley, in the County of Salop, Potters Moulder,
do hereby declare the nature of my said invention to be as follows:-
My invention has for its object improvements in chimney pots which are con-
structed in such a manner as to prevent a down draft and also for increasing
the up draft so as to prevent chimneys from smoking.
In carrying my invention into practice I construct my chimney pots whether
made of clay or metal with a number of openings, preferably six, around the
side near the base. These openings communicate with the interior of
the pot near the top and are divided one from the other with partitions so as
to form separate air passages in the interior of the pot which I call up draft
chambers. The bore of the pot from the base of these air passages to as far
as they extend is consequently narrowed but gradually opens out towards the
base of the pot. Formed on the upper edge of the pot are three or more arms
or supports on which a disc or plate is fixed which I call the break wind plate
and this plate is formed with a convex surface on its under side and a flat upper
surface.
Dated this 10th day of February 1899.
WILLIAM BOYCE.
By George Barker,
Fellow of The Chartered Institute of Patent Agents,
Agent for Applicant, 77, Colmore Row, Birmingham.
I, WILLIAM BOYCE, Brandlee, Dawley, in the County of Salop, Potters Moulder,
do hereby declare the nature of my said invention and in what manner the same
is to be performed to be particularly described and ascertained in and by the
following statement:―
My invention has for its object improvements in chimney pots which are con-
structed in such a manner as to prevent a down draft and also for increasing
the up draft so as to prevent chimneys from smoking.
In carrying my invention into practice I construct my chimney pots whether
made of clay or metal with a number. of openings, preferably six, around the
circumference near the base. These openings communicate with the interior of
the pot near the top and are divided one from the other with partitions so as
to form separate air passages in the interior of the pot which I call up draft
chambers. The bore of the pot from the base of these air passages to as far
as they extend is consequently narrowed but gradually opens out towards the
base of the pot. Formed on the upper edge of the pot are three or more arms
ட.
377

page_text: or supports on which a disc or plate is fixed which I call the break wind plate
and this plate is formed with a convex surface on its under side and a flat upper
surface.
In order that my invention may be more clearly understood and easily carried
into practical effect I have appended hereunto a double sized sheet of drawings
upon which I have illustrated examples of my chimney pots.
Figure 1 is an elevation of one of my chimney pots."
Figure 2 is a sectional elevation of Figure 1 with the top cover removed.
Figure 3 is a plan view of Figure 1 with the top cover removed.
Figure 4 is an elevation shewing a modified form of my chimney pot.
Figure 5 is a sectional elevation of Figure 4.
Figure 6 is a sectional plan view of Figure 4, taken on the line 1-2.
In carrying my invention into practice I construct my chimney pot P whether
made of clay or other material or metal with a number of openings or air
passages preferably six, around the circumference near the base as clearly
shewn at Figure 1. These openings or air passages p¹ communicate with the
interior of the pot near the upper end and are divided or separated one from
the other by the partitions or walls 2 thus each forming a separate air passage
in the interior of the pot which I call updraught chambers or openings as
clearly shewn at Figure 3. The portion of the bore 23 of the chimney pot from
the base of these passages p¹ to as far as they extend up the interior of the pot
is narrowed but gradually opens out at p towards the base of the pot as shewn
at Figure 2. Formed on the upper edge of the chimney pot are three or more
arms or supports 2,5 on which the disc or plate A is fixed which I call the break
wind plate and this plate is formed with the convex surface a¹ on its underside
and a flat upper surface as clearly shewn at Figure 1.
At Figures 4, and 6 I have shewn a slight modified form of my chimney pot.
In this case I prefer only four up draught openings pl and in the partitions or
walls immediately above these openings I form four other openings or pas-
sages p which I call the down draught openings. These down draught openings
are provided for the purpose of preventing the wind from driving down the main
shaft or bore p³ as the wind will strike against the disc or plate A and pass
out at the openings 26 as indicated by the arrows a³ Figure 4.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what
I claim is:
CLAIMS.
First: The improvements in chimney pots consisting essentially in providing
up draughts such as p¹ each divided by a separate partition or wall and communi-
cating with the interior of the chimney pot on the upper edge of which are formed
supports or arms to which a disc or cover plate such as A is fixed in the manner
and for the purpose substantially as herein set forth and as shewn upon the
accompanying sheet of drawings.
Second: In chimney pots forming separate air passages such as p¹ and p
communicating with the interior of the chimney pot the said openings p¹ being
protected by a plate or disc such as A in the manner and for the purpose sub-
stantially as herein set forth and as shewn upon the accompanying sheet of
drawings.
Dated this 11th day of November 1899.
WILLIAM BOYCE.
By George Barker,
Fellow of The Chartered Institute of Patent Agents,
Agent for Applicant, 77, Colmore Row, Birmingham.