Improvements in Chimney Pots for Preventing Down Draught.
Year: 1889

page_text: Date of Application, 16th Nov., 1889-Accepted, 18th Jan., 1890
COMPLETE SPECIFICATION.
Improvements in Chimney Pots for Preventing Down Draught.
We JOHN GINGELL, Plasterer of 11 Old James Street, Sylla Road Peckham Rye-
and ELI STAFFORD, Bricklayer, of 9 Tarbert Road, East Dulwich, both in the County
of Surry 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:
This Invention relates to improvements in chimney pots for preventing down
draught and consists in fitting a series of inclined plates to the interior of the
chimney pot whereby the incoming air is deflected outwardly through passages
formed in the sides of the chimney pot. It is preferable to form the interior part
or uptake of the chimney pot of a square shape in horizontal section, the body being
made of pottery ware or similar material and constructed in two halves so as to.
facilitate the cleaning thereof and the fixing of the inclined plates.
An open top or cap is provided formed in one piece resting upon the top of the
chimney, pot and serving to secure the two halves together. The inclined plates do
not reach right across the interior or uptake of the pot but allow of a space being
left sufficient to permit of the escape of the smoke and gases arising from the chimney
flue. In some cases we construct our improved chimney pot of zinc or other suitable
metal and we then provide provide a fan which is fixed in the lower internal
part of the pot for automatic cleansing purposes.
And in order that our invention may be more fully understood we have shown
the same in the accompanying drawing in which Fig. 1-is an elevation and Fig. 2—
a vertical section of our improved chimney pot. Fig. 8-is a plan of the same with
the cap or hood removed.
Our improved chimney pot consists of a body composed of two halves A and A¹
fitting together at a, a, as shewn in Fig. 3. The walls of this pot are provided on
one side with rectangular openings C, C, having a central circular groove g at the
top and slanting at the bottom as shewn in Fig. 2-and on the opposite side with
similar rectangular openings CC likewise furnished with grooves g¹, g¹ but not in
a line with the former openings C, C
Within the body of the chimney pot are arranged inclined superposed bafle
plates B, B, B, B, placed in alternate rows and having for object to deflect the air
entering at the top of the chimney pot and cause it to escape outside through the
grooves g. 9. g g as indicated by the straight arrows while the ascending smoke
and products of combustion can partly escape at C, C, C, C³, the greater part
thereof passing through the space B₁ B₁ etc. and finding an exit at the top of the
pot between the supports of the cap or hood D and through the opening formed in
the centre thereof as clearly shown by the curved arrows.
The improved chimney pot rests upon a bed plate E fitted over the top of the
chimney.
F is the fan used when the pot is made in one piece and serves for self cleaning
purposes.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed we declare that what we
claim is :-
1. The improved chimney pot arranged and constructed substantially as and for
the purpose described and shewn in the annexed drawing.

page_text: 2. In chimney pots such as above claimed the combination of inclined superposed
bafle plates arranged in alternate rows with the openings formed in the sides of the
pot for the purpose of outwardly deflecting the incoming air and thus allowing the
smoke to escape undisturbed substantially as and for the purpose described.
Dated this 16th day of November 1889.
C
HUGHES SON & Co.,
38, Chancery Lane, Agents.