Improvements in Ventilators applicable to Buildings, and the like.
Year: 1898

page_text: Improvements in Ventilators applicable to Buildings, and the like.
We, HENRY BRASSINGTON and HERBERT BRASSINGTON, both of No. 4, Craven
Terrace, Settle, in the County of York, Sanitary and Ventilating Engineers, 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:
The object of this invention is to construct an efficient ventilator for automatically
extracting the vitiated air from the interior of buildings, and to so arrange the
ventilator that it is also applicable for extracting smoke from chimneys.
In describing our invention in detail, reference is made to the accompanying
drawing representing a sectional view of a ventilator made according to our
invention.
The base A of the ventilator may be made square, round, octagonal, or of other
convenient shape, and above the base A are formed a series of what we term louver
openings B around the exterior of the ventilator. A division plate is secured at
intervals around the ventilator, say if the ventilator be of octagonal section then a
plate is secured at each angle extending the whole or a portion of the distance between
the inclined plate C and the inclined plate F, the division plates being secured to
the ventilator casing E and central shaft D, thus a series of conduits M are formed
terminating with openings N into the central shaft D.
The exterior of the ventilator casing E above the base A is preferably inclined
towards the central shaft 1) for some distance, and at or near the top of the central
shaft, the said casing is inclined more rapidly at by which one side of a second
louver G is formed, which may extend all around the ventilator, or be divided by a
number of plates P as shown connecting the inclined surface F with the top plate H,
the opening through each louver G converging for some distance towards the centre,
then the opening takes a vertical course, thus directing the current of air upwards
and thereby assisting the bottom series of louvers B to create an up current and
assist the flow of air through the vertical shaft D.
Above the second louver or series of louvers G we form an opening by securing a
cover J in any convenient manner to the top plate II or the like, thus forming an
open space or what we term louvers K which by preference is covered with wire
netting L for preventing birds getting into the interior of the ventilator and building
nests therein, and thus destroying the utility of the ventilator.
By cutting off the apex of the ventilator and thus making an opening through the
cover J say of the same diameter as the central shaft D and removing the wire
netting D from the top louver K, the ventilator is applicable for extracting the smoke
and preventing the down draughts in chimneys.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to he performed, we declare that what we
claim is :-
Ventilators constructed with a series of louvers around and above the central

page_text: shaft D, arranged substantially in the manner shown and hereinbefore described and
for the purpose set forth.
Dated this 15th day of November 1908
JOHN WAUGH,
Agent, Sunbridge Chambers, Bradford.