An Improved Ventilator for Rooms, Halls, Public Buildings, Churches, and also for Chimneys.
Year: 1888

page_text: - Date of Application, 26th Jan, 1888.
Complete Specification Left, 25th Oct., 1888
Complete Specification Accepted, 30th Nov., 1888
An Improved Ventilator for Rooms, Halls, Public Buildings, Churches,
and also for Chimneys.
ALFRED BROWN 240 Queen's Road Dalston in the County of Middlesex, Gas
Engineer, do hereby declare the nature of this invention to be as follows:-
:-
The Merits of this Invention consists of an Internal circular shaft of Perforated
Zinc or any other metal or material enclosed in an outer shaft of a larger diameter
which can be either hexagon, octagon, circular or square, also perforated and fastened
to the inner one by stays. To this outer shaft are fixed O G Louvres and the whole
surmounted by a cap or Roof the current of hot or vitiated air from the Rooms or
Hall escapes through the ornamental pierced opening fixed at the bottom end of the
shaft and level with the ceiling and illustrated in the Drawing with this Specification
annexed, and ascends by its high specific gravity to the upper portion of Shaft and
escapes out of the Louvres and is cooled by the admission of cold or pure air entering
from the lower Louvres and reenters the Room or Rooms through the same opening
thus the vituated or hot air is constantly being replaced by a current of fresh air and
a constant circulation is kept up. This principle can also be applied to Chimneys and
flues.
1000

page_text: COMPLETE SPECIFICATION.
An Improved Ventilator for Rooms, Halls, Public Buildings, Churches,
and also for Chimneys.
ALFRED BROWN 240 Queen's Road Dalston in the County of Middlesex Gas
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, reference being had to the drawings accompanying my
Provisional Specification:
:-
The merits of this invention consists of an Internal circular Shaft of perforated
Zine or any other metal or material enclosed in an outer shaft of a large diameter which
can be either hexagon, octagon circular or square also perforated and fastened to the
inner one by stays. To this outer shaft are fixed O. G Louvres and the whole
surmounted by a cap or Roof the current of hot or vitiated air from the Rooms or
Hall escapes through the ornamental pierced opening fixed at the bottom end of the
shaft and level with the ceiling and ascends by its own low specific gravity to the
upper portion of Shaft and escapes out of the Louvres and is cooled by the passage of
cold or pure air entering from the lower Louvres which enters the Room or Rooms
through the same opening thus the the vitiated or hot air is constantly being replaced by a
current of fresh air and a constant circulation is kept up-This principle can also be
applied to Chimneys and flues.
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. That by means of this invention and by the cylinder in conjunction with the
centre flower the Room or Rooms wherein this Invention is fixed the hot or foul air is
killed and the current of fresh air constantly replaced minute by minute by the
.natural action of the apparatus.
'
2. This keeps the Temperature at a given point either in Summer or Winter and can
be regulated accordingly.
3. This invention also applies to will cure the straightest of smoky Chimneys and
flues and will effectually prevent the down Draft.
Dated the 25th day of October 1888.