Improvements in Chimneys, Ventilators, and the like.
Year: 1896

page_text: Date of Application, 19th Mar., 1896-Accepted, 2nd May, 1896*
COMPLETE SPECIFICATION.
Improvements in Chimneys, Ventilators, and the like.
I, MALCOLM THOMAS LANDER of 2, Ashbrook Road, Upper Holloway, N..
Hot Water Engineer, 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 connection with chimneys, ventilators,.
and like articles and has for its object to provide a simple device which will
effectually prevent any down or back draught without at the same time disfiguring
the article, the whole of the apparatus being contained within it.
As applied to chimneys I propose to form an extension provided with holes in.
the sides, two sets for preference, one at a short distance above the other. At the
lower openings and inside the chimney I fit a tube or cone of metal, terra-cotta,
stone or other suitable material through which the smoke can pass. A short
distance above this tube, a cap of the same diameter as the tube is suspended from
a frame or rod fitted at the upper portion of the extension and carried by the
upper set of holes or openings. Any wind on blowing through the lower holes will
only tend to increase the draught as the tube will direct the air towards the
upper end of the chimney. The cap at the same time will protect the tube from.
any current passing down from the chimney top at the same time allowing free-
passage for the smoke.
The arrangement as applied to ventilators and the like is similar.
In order that the invention may be more clearly understood, reference is had to.
the accompanying sheet of drawings which show my invention applied to chimneys.
and in which Fig. 1 is a side elevation of the upper end of a brick chimney, Fig. 2 is a
vertical section of the same and Fig. 3 is a cross section.
A is the top of the chimney provided with the extension a which is preferably
slightly enlarged or bulged enlarging the opening or internal passage. Bricks are
removed to form the passages B B' at each side. Inside the passage the tube C
A short distance.
is fitted carried by the plate c embedded in the brickwork.
above the top of this tube, which as above mentioned may be of conical form, is.
suspended a cap or cover plate D by means of the chain d and the rod d...
Sufficient distance is allowed between the cover plate and the top of the tube to
provide a free outlet for the smoke. The ends of the passages B and B may be.
closed by the gratings or air bricks b.
As shown in the drawings the plate mechanism is concealed in the outer casing-
so that the chimney is not disfigured by the ordinary terminals placed at the
head. As shown the tube and cap are of circular form but any other shape may be
employed.
Owing to the covering plate being suspended in the manner described, it will
move out of the way on a sweep's brush or other mechanism being employed to clean.
the chimney.
-
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 I
claim is.-
(1.) Improvements in chimneys ventilators, and the like, consisting in providing-
wha oz cone through which the smoke or air must.

page_text: pass a covering plate or cap a short distance above and openings in the side of
casing, substantially as described and for the purposes specified.
(2.) In an improved device to be used in connection with chimneys, ventilators,
and the like consisting of a tube or cone placed in the smoke or air passage, a cover
plate or cap suspended at a short distance above this tube, and two sets of holes or
openings at the upper and lower ends of the casing, substantially as and for the
purposes specified.
(3.) An improved device for chimneys and the like consisting of a tube, a cover
plate or cap suspended from the casing, holes or passages in the said casing and
gratings or air bricks in the said openings, substantially as described and shown in
the accompanying drawings and for the purposes specified.
Dated this 19th day of March 1896.
GEO. H. RAYNER,
37, Chancery Lane, London, Agent for the Applicant..