Improvements in Ventilators.
Year: 1890

page_text: Date of Application, 12th May, 1890
Complete Specification Left, 16th Oct.. 1890-Accepted, 29th Nov., 1890
Improvements in Ventilators.
1, WILLIAM GEORGE ROBERT ALLEYNE Cox, 29 Rye Hill, Newcastle-on-Tyne,
Veterinary Surgeon do hereby declare the nature of this invention to be as follows:-
The object of my invention is to obtain thorough ventilation without any direct
draught.
This I effect by inserting a metal or other box of any suitable shape and
dimensions in the external wall of a building in any convenient position. Such
box is fitted with a division plate which divides it into two divisions, and which
is provided with flanges or edges that project from the box, both on the inside
and outside thereof. One of the before mentioned divisions forms an outlet for
the escape of the vitiated air, and the other an inlet for the pure air. The box
is furnished with a lip or projection so placed as to cause the current of fresh air
which enters through the inlet to travel in an upward direction, thus preventing any
down draught. Such inlet is closed when required either by means of a suitable slide
or by the division plate itself which may be made to work loose in any convenient
manner so as to close the inlet.
11
10
C
1800
ELT & Co.,
33, Southampton Buildings, Holborn, London, Agents for Applicant.
COMPLETE SPECIFICATION.
Improvements in Ventilators.
I WILLIAM GEORGE ROBERT ALLEYNE Cox 29 Rye Hill Newcastle-upon-Tyne
Veterinary Surgeon 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 obtain thorough ventilation without the inconvenience
of a direct down draught.
My invention consists of a casing of any convenient shape and dimensions furnished
in front at the bottom with an inclined projecting lip placed at an angle of about 40°
to prevent any down draught. A division plate is fixed or fitted either horizontally
or obliquely inside such casing and divides it into an upper and lower opening.
The upper opening forms an outlet for the heated air and the lower one an inlet
for the cold air. The front and back edges of the plate are bevilled and project
beyond the front and back of the casing thus inducing a thorough draft through each
opening and separating the inlet and outlet air currents from each other. When the
division plate is made adjustable it is fitted with a suitable pull whereby it can be
adjusted in any convenient position while its rear end is weighted to ensure its dropping
automatically when uncontrolled by such pull and so closing the ventilator.
however the plate is rigid it is fixed in the required position preferably so as to
slope downwards towards the back of the casing at an angle of about 15° and the
inlet opening is then fitted with a slide not shewn in the drawings which can be
opened or closed at will. If desired the division plate may be placed vertically at any
convenient angle with the sides of the casing and when so fitted the inclined projecting
lip is fixed on one side only in front of the inlet opening. The apparatus is fitted in
the wall of a room or building.
When
In the accompanying drawings wherein similar letters of reference indicate
corresponding parts
Fig. 1 shews a front and Fig. 2 a sectional side elevation of such apparatus.

page_text: a is the casing-b inclined projecting underlip-c division plate which is shewn
adjustable-d pull-e weight-A outlet opening-B inlet opening.
By operating the pull the plate is adjusted in any convenient position thus allowing
the vitiated air to escape at A and the cold air to enter at B. The foul air in escaping
acquires a certain velocity thus displacing the cold air which passing into the inlet
opening traverses the same and impinges against the underlip whereby it is diverted
upwards and so dispersed through the room or building without creating any direct
downdraught. If necessary the openings in the casing may be fitted with cross bars to
prevent missiles being thrown in.
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. A ventilating apparatus consisting of a suitable casing furnished with an inclined
projecting underlip and fitted with a rigid or adjustable division plate placed in any
convenient position all substantially as hereinbefore described and shewn.
2. In such a ventilating apparatus fitting the casing with a slide and also with
cross bars all substantially as hereinbefore described.
Dated th: teil
1000
ELT & Co.,
33, Southampton Buildings, Holborn, London, Agents for Applicant.