Year: 1896

page_text: HORACE WILLIAM SWAIN Jeweller and Fancy Dealer "Rook House"
Stapleton Road Bristol do hereby declare the nature of this invention to be as
follows:-
A chimney pot or ventilator, so constructed as to be a fixture, to catch the wind.
by openings on all sides, the said openings to form upshafts so as to cause au
upward draught and thus force all smoke and hot air upwards, the same openings.
to act as down shafts for any down draught and so allow all smoke and hot
air to escape without returning into the flues or rooms, thus preventing smoky
chimneys and faulty ventilation. The pot to be formed of two or more sections,.
as globe upon globe, with holes or openings all round the under parts, to catch the
wind from all quarters. The opening at the top of the pot to be greater than
that at the base so that as smoke or air is blown back or down the pot by reverse
wind, it shall become compressed and so forced through the holes or openings in the
under parts mentioned instead of returning into the flue.
Dated this 22nd day of April 1896.
HORACE WILLIAM SWAIN..
HORACE WILLIAM SWAIN Rock House Stapleton Road Bristol Jeweller and
Fancy Dealer &c. 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 :-
A chimney pot or ventilator consisting of three or more chambers or sections
placed one upon the other; each section is made in the shape of an obtuse angle.
The under half of each chamber or section is pierced all round with holes a of an
upward tendency. The flue way or shaft of the pot or ventilator is made tapering
the largest opening being at the apex C and the smallest opening at the lowest end
of the bottom chamber thus showing a downward tapering.
The base of the pot or ventilator is square, and in each side of the square base
or pedestal an opening bis cut, each of these openings are covered by a shield or
lug which stands off from the sides of the pedestal of the pot about one and a half
inohes.
The object in making the pot as before-mentioned is as follows:-
The holes a pierced with an upward tendency alround the lower portion of each
chamber, and the openings covered with the shield or lug in the pedestal of
the pot or ventilator allow the wind coming from any quarter a free course into
the pot or ventilator and drives the smoke or hot air upwarde.

page_text: To prevent a downdraught caused by squally winds blowing into the pot or
ventilator the diameter of the neck of each chamber decreases from the top;
d being less in diameter than C; E being less than d, and F being less than E.
Owing to this decrease in the diameter of the necks of each chamber the air
passing through C must become compressed to pass through d, again from d to E
and from E to F, and the surplus air passes through the holes a in the lower portion
of each chamber, and finally through the openings b in the sides of the pedestal of
the pot or ventilator.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what [
To prevent a downdraught caused by squally winds blowing into the pot or
ventilator the diameter of the neck of each chamber decreases from the top;
d being less in diameter than C; E being less than d, and F being less than E.
Owing to this decrease in the diameter of the necks of each chamber the air
passing through C must become compressed to pass through d, again from d to E
and from E to F, and the surplus air passes through the holes a in the lower portion
of each chamber, and finally through the openings in the sides of the pedestal of
the pot or ventilator.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what [
claim is
1st. Pot made in chambers on an obtuse angle.
2. Flueway or shaft tapering downwards.
3. The holes a and openings b to act as upshafts or downahafts.