Improvements in Smoke Cures and Ventilators.
Year: 1895

page_text: Date of Application, 25th Feb., 1895-Accepted, 30th Mar., 1895
CODILELE
DIECIFICATION.
Improvements in Smoke Cures and Ventilators.
I JOHN HENRY WILSON, of 153 Marlborough Road, Chelsea, London, S. W.,
Sanitary 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 smoke cures and ventilators, and has
for its object to prevent down draught and to increase up draught therein by means
of devices so constructed and arranged as to offer no obstruction to the passage of a
cleaning implement, such as a sweep's brush.
This I effect by the peculiar construction and arrangement of pivotted balanced
baffle plates which I shall now proceed to describe, having reference to the
accompanying drawings wherein similar letters refer to corresponding parts in all
the figures, and in which :-
Fig. 1 is a vertical section of a smoke cure or ventilator constructed in
accordance with my invention, Fig. 2 is a vertical section at right angles to Fig. 1,
and Fig. 3 is a detached plan view of one of the baffle plates.
a is the body of the smoke cure or ventilator which is provided with the usual
louvre top cc are baffle plates, preferably of thin sheet metal, which are
mounted so as to swing freely upon the pivots d passed through the sides of the
body and secured in position by the nuts d'. The baffle plates c are normally
maintained in a horizontal position by the counterbalances e, preferably constructed
of lead, and are arranged alternately upon opposite sides of the body a so as to
overlap one another, as shewn in Fig. 1, whereby the smoke or draught passing
through the body a is caused to follow a serpentine or tortuous path, as indicated
by the arrows.
The baffle plates being free to swing in all directions upon their pivots, as
indicated by the dotted lines Fig. 1, a sweep's brush may be passed up the body, or
a ball or weight lowered down the same for the purpose of removing any obstruction
in the shaft, without any difficulty, the counterbalances e restoring the baffle plates
to their normal horizontal position.
In the drawings I have represented the body. a as provided with three baffle
plates, which I have found to answer well in practice, but I do not coufine or limit
myself to this particular number.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed 1 declare that what !
claim is :-
1. In a smoke cure or ventilator, the employment of pivotted balanced baffle
plates disposed and arranged within the body thereof, substantially as and for the
purpose described and illustrated.
2. A smoke cure or ventilator comprising a body u within which are disposed
baffle plates c mounted so as to swing freely upon pivots d passed through the sides
of the body, and provided with counterbalancese whereby they are normally
maintained in a horizontal position, said baffle plates being so arranged as to cause

page_text: the smoke or draught passing through the body to follow a serpentine or tortuous
path, substantially as and for the purpose described and illustrated.
Dated this 25th day of February 1895.
E. P. ALEXANDER & SON,
Chartered Patent Agents,
19, Southampton Buildings, Chancery Lane, London, W.C., Agents.