IMPROVEMENTS IN CHIMNEY TOPS OR VENTILATORS
Year: 1884

page_text: PROVISIONAL SPECIFICATION.
I, REGINALD STANLEY, of the Midland Tile Works, Nuneaton, in the County of
Warwick, England, Manufacturer do hereby declare the nature of my invention
for IMPROVEMENTS IN CHIMNEY TOPS OR VENTILATORS to be as follows:-
By means of contracting slits or apertures in the sides and top of a chimney pot
or ventilator, as shewn on the accompanying plan, (with the slits or apertures
marked D,) a current of air is introduced in such a manner as to assist in ejecting
and propelling any smoke, steam or foul air that may be within such chimney pot
or ventilator. The said smoke, steam, or foul air together with the ejecting and
propelling current escapes into the passages marked E on the plan, from which,
assisted by a second current, which enters the passage E from the windward end;
they are ejected and propelled into the surrounding atmosphere from the opposite
end of the passage E.

page_text: COMPLETE SPECIFICATION.
I, REGINALD STANLEY, of the Midland Tile Works, Nuneaton, County of
Warwick, England do hereby declare the nature of my invention for "IMPROVE-
MENTS IN CHIMNEY TOPS OR VENTILATORS" and in what manner the same is to
'be performed, to be particularly described and ascertained in and by the following
statement:-
This invention has for its object an improved method of causing smoke, steam,
heated or foul air to be emitted from a chimney, pipe, flue or chamber.
I propose to do this by constructing on the side of a chimney top, pipe, flue or
ventilator one or more slits or openings (marked C on plan). These slits or
openings are guarded by a shield (marked D on plan); which I make either
straight or rounded; so that no current of air or wind can strike or directly enter
the said slits or openings so as to prevent the smoke, steam heated or foul air, that
may be within the said chimney top, pipe, flue or ventilator, from escaping.
I also construct two passages (marked E & F on plan) for the purpose of con-
ducting any current of air or wind that may enter them in such a manner and
direction, as to assist in drawing out, ejecting, and propelling, any smoke, steam,
beated or foul air, that may be within-such chimney top, pipe, flue or ventilator,
and which shall escape by the slits or openings (marked O on plan). I construct
the inside of the passages (marked E on plan) of such a shape that a current of
air or wind that enters from one side, shall be conducted and turned in such
direction as to assist the exit or cause the expulsion of any smoke, steam, heated
or foul air that may escape through the slits or openings (marked C on plan), and
shall mix with them, and escape from the other or opposite end of passages
marked E & F on the plan. And I construct the outside passage (marked Fon
plan) of such a shape that it shall conduct any current of air or wind in such a
inanner and direction as to propol and cause the exit of the said smoke, steain,
heated or foul air that may escape from the slits or openings (marked C on plan) or
that may have become mixed with the current of air or wind that has entered by
the passage E, through and out of the other or opposite ends of the passages E & F
into the surrounding space or atmosphere.
1 the elevation of
Fig. 3 the elevation
C marks the slits or
the outside passage.
The drawings accompanying this specification show Fig
chimney top. Fig. 2 a horizontal cross section of the same.
of Ventilator. Fig 4 cross horizontal section of the same.
openings. D marks the shields. E the inside passago, and F
I wish it to be understood that I do not confine or bind myself to the exact
details, shape and size of the parts herein described, as the same may be varied or
modified according to circumstances, without in any way departing from the nature
of my invention,
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
1st. The construction of a chimney top, pipe, flue, or ventilator with one or more
guarded slits or openings at the side or sides for the escape of smoke, steam, foul or

page_text: heated air, and with two passages for conducting currents of air or wind to assist in
drawing out and expelling any smoke, steam, foul or heated air that may be within
the said chimney top, pipe, flue or ventilator.
2nd. The manner of the construction and action of the two passages (marked E
& F on plan) being perpendicular and on the side of a chimney top, pipe, flue or
ventilator, passage E being of such a shape as to conduct any current of air or
wind that enters it, in such a manner as to assist in drawing out and helping the
exit of smoke, steam, foul or heated air through the other or opposite end of the
two passages E & F. Passage F being of such a shape as to conduct any current
of air or wind that enters it in such a manner as to propel and cause the exit of
any smoke, steam, foul or heated air from the other or opposite ends of the
passages E & F