Improvements in Caps, Pots, or Tops for Chimneys, Ventilating Shafts, and the like.
Year: 1895

page_text: Date of Application, 18th Apr., 1895
Complete Specification Left. 20th Jan., 1896-Accepted, 14th Mar., 1896
PROVISIONAL SPECIFICATION.
Improvements in Caps, Pots, or Tops for Chimneys, Ventilating
Shafts, and the like.
I REGINALD STANLEY J.P. of Nuneatou in the County of Warwick,
Manufacturer, do hereby declare the nature of this invention to be as follows:-
The object of my invention is to provide means for increasing the up-draught
and reducing or overcoming down-draught in chimneys, ventilating shafts, or the
like, and especially for preventing the wind from cutting off the smoke so closely
as to prevent its free exit from the top of the chimney pot. It is found that the
wind not only cuts across the top of an ordinary pot, but eddies down the inside of
it to a small extent, thus preventing the exit of the smoke or warm air.
My invention is described herein with reference to ordinary chimneys, but it is
also applicable to ventilating shafts and similar purposes, and in carrying it into
effect, I surround each chimney pot entirely or partially with an attached or
independent structure, containing a series of louvres preferably one above the
other. Any suitable number of louvres may be used, and they may vary in size
or depth according to the height and diameter of the pot, the flaps being inclined
downwardly and outwardly, and with spaces between their inside edges and the
outside of the pot, increasing in area as the volume of the upcast air increases
upon the wind entering the superposed louvres and being diverted in an upward
direction.
Said louvres are supported and kept in position by suitable partitions or uprights,
which may be extended so as to touch, or may be attached to, the pot, these serving
also to confine the wind and up-draught to any particular or convenient direction
where most required, and in some cases, I may provide passages through which the
wind may travel from the front to the back or sides of the pot, or from one side to.
the other.
My improved chimney top may be made of metal, if desired, but I prefer to
mould it from clay or like plastic material.
In the case of a row of chimney pots or flues, either single or double or otherwise,
the two ends of the row need only be surrounded on three sides, or half way round,
by the arrangement of louvres, and every other pot between them on the outer
sides only, forming, as it were, two walls with inclined openings connecting the two
end sets of louvres; in this manner, the whole row of pots or flues is completely
surrounded by an ornamental chimney top resting upon the foundation of the
brickwork or stone, and having a series of continuous louvre openings, one
above the other.
Each moulding, casting, or set of louvres may be secured to its adjacent one
by mortar, ceinent, or with any suitable kind of joint, and in the case of a row
of pots or flues be connected with the opposite one, if desired, by a plain diaphragm,.
tie-rod, or other means, or may be built into or made to surround the brickwork of
any chimney, flue or shaft.
By this invention an up-draught is created outside of the ordinary pot or flue
which deflects or throws upwards the wind blowing across the same, thus producing
a continuous and steady outlet for the smoke.
I may prefer, as a modification, to attach flaps in the form of louvres to the
chimney pot itself, or make them one with the same during the process of

page_text: manufacture, and they may be at or near the top of the pot only, or throughout
any portion of its length. The louvres or openings may be formed and arranged
around the pot or flue in other ways than the manner hereinbefore described,
without departing from the spirit of my invention.
Dated this 18th day of April 1895.
ARTHUR H. STANLEY,
Patent Agent.
Improvements in Caps, Pots, or Tops for Chimneys, Ventilating
Shafts, and the like.
I, REGINALD STANLEY J.P. of Nuneaton, in the County of Warwick,
Manufacturer, do hereby declare the nature of this invention and in what manner
the same is to be performed, to be particularly described in and by the following
statement:-
The object of my invention is to provide a method of and means for increasing
the up-draught and reducing or overcoming down-draught in chimneys, ventilating
shafts, or the like, and especially for preventing the wind from cutting off the
smoke so closely as to prevent its free exit from the top of the chimney pot. It is
found that the wind not only cuts across the top of an ordinary pot, but eddies
down the inside of it to a small extent thus preventing the exit of the smoke, warm
air, or the like.
My invention is described herein with reference to ordinary chimneys, but it is
also applicable to ventilating shafts and similar purposes; and in carrying it into
effect, surround each chimney pot, or group of pots, entirely or partially with
an attached or independent structure containing a series of louvres, arranged
preferably one above the other. Any suitable number of louvres may be used,
and they may vary in size or depth, according to the height and diameter of the
pot, the flaps being inclined downwardly and outwardly, and with spaces between
their inside edges and the outside of the pot, said spaces increasing in area, if
desired, as they get nearer to the top of the pot, so as to cause as little obstruction
as possible to the upcast air.
The louvres aforesaid are supported and kept in position by suitable partitions or
uprights, which may be extended so as to touch, or may be attached to, the pot,
these serving also to confine the wind and up-draught to any particular or con-
venient direction where most required, and in some cases, I may provide passages
through which the wind may travel from the front to the back or sides of the pot,
or from one side to the other.
In the case of a row of chimney pots or flues, either single or double or otherwise,
the two ends of the row may be surrounded on three sides, or half way round, by
the arrangement of louvres, and every other pot between them on the outer sides
only, forming, as it were, two walls with inclined openings, connecting the two end
sets of louvres, so that the whole row of pots or flues is completely surrounded by
an ornamental chimney top, resting upon the foundation of the brickwork or
stone, and having a series of continuous louvre openings, one above the other.
Each moulding, casting, or set of louvres may be secured to its adjacent one by
mortar, cement, or with any suitable kind of joint, and in the case of a row of
pots or flues, be connected with the opposite one, if desired, by a plain diaphragın
tie-rod or other means, or may be built into the brickwork of any chimney, flue or
shaft.
On the accompanying two sheets of drawings is illustrated the manner of
carrying out my invention as applied to a single row of flues, but they will
sufficiently indicate how the same may be applied to a single flue or to a group.

page_text: Referring to Sheet 1,
Figure 1 is a vertical section of my invention applied to a chimney flue;
Figure 2 a plan of the same; and
Figure 3 a front elevation.
My improved chimney top may be made of metal, but I prefer it to be of clay
or like plastic material, and may mould the pots and louvres together, in sections if
desired, as shown more clearly in the plan, Fig. 2, forming thus an extra top to the
chimney rather than a row of independent pots. The louvres A A A are supported
and kept in position by partitions or uprights B B B, the latter touching the pots,
or joined thereto on their inner edge, and serving not only as a support, but as a
means for confining the wind and up-draught to the proper direction, as indicated
by arrows in Fig. 1. Each section or tier of louvres A is connected with its
adjacent one by means of bolts C passing through the flanges or partitions B,
forming a joint F. The outside pots D D at each end of the row, are shown
surrounded by three tiers of louvres on their three sides, being moulded with the
same during the process of manufacture. As has been already pointed out, the
upright partitions B carrying the louvres A may be moulded quite independently
of the pots, instead of as shown, and the tiers or sections placed around a pot or
pots already erected, and there bolted together as before. E is a division or
extension of one of the sides of a pot for preventing smoke from entering an
adjoining flue, a contingency which might arise when said flue is not in use, or
there is insufficient draught. In Fig. 3, one of the flues is shown bonnetted over
by a plate F¹ for cases where it may be necessary to prevent sudden down-draught
of eddying winds.
Referring now to Sheet 2 of the drawings
Figure 4 is a vertical section,
Figure 5 a plan, and
Figure 6 a front elevation of a slightly modified form of my invention, showing
how an up-draught can be created between the pots which, in this instance, are not
joined, as in the former case; but I construct the pots G G G in one piece, being
joined together by diaphragins H H, J J, the outer diaphragms J J being provided
with holes or spaces K K, so that the wind may enter through said holes K K from
the louvres A A. into the spaces L L between two adjacent pots G G, the force
of the upcast being increased by the deflection of the wind against the diaphragm H.
The partitions or uprights B B B carrying the louvres A A A, are here shown
separate from the pots or row of pots, but are bolted to each other by bolts Cas
before, the ends being shown as being attached separately.
Where a double row of pots is employed, I may introduce an up-current between
the two rows by means of covered passages between two adjacent pots (and near
the base thereof) leading from the louvres to the space or upcast enclosed by the
two rows, diaphragms or partitions being provided to deflect the wind in an upward
direction.
Although I prefer to make my improved chimney top in sections for bolting
together, on account of the great weight it would be in one piece, I may never-
theless make it in one piece for a single flue or for small structures; or a single
louvre or a number of louvres may be attached to each chimney pot itself, or be
made one with the same during the process of manufacture.
The louvres may be arranged or built up around, or upon the chimney stack
without any pots, if, in some cases, found more convenient, without departing from
the spirit of my invention, which is designed essentially to provide for the creation
or inducement of an up-draught outside of the pot, flue or stack, so that the wind
blowing across the latter may be deflected or thrown upward.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, 1 declare that what I
claim is :
First. The method of increasing the up-draught, and reducing or overcomin

page_text: down-draught in chimneys, ventilating shafts, and the like by means of an external
upcast of air, substantially as herein before described.
Second. The method of and means for producing or inducing an upcast of air
outside of a chimney, ventilating shaft, or the like, as and for the purpose herein-
before set forth, and substantially as shown by the accompanying drawings.
Third. Providing chimneys, ventilating shafts and the like with a series of
louvres, situated on the outside of same for creating or inducing an up-draught,
substantially as herein before described.
Fourth. The improved top or superstructure for chimneys, ventilating shafts,
and the like, consisting of a pot or pots surrounded by a louvre or series of louvres,
made and arranged substantially in the manner herein before described, with reference
to Figures 1, 2, and 3 of the accompanying drawings.
Fifth. The improved top or superstructure for chimneys, ventilating shafts and
the like, consisting of a row of pots surrounded by a louvre or series of louvres,
with provision for interfluent upcast, substantially as herein before described,
particularly with reference to Figures 4, 5, and 6 of the accompanying drawings.
Dated this 20th day of January 1896.
ARTHUR H. STANLEY,
7 & 8 Southampton Buildings, London, W.C., Chartered Patent Agent.