An Improved Construction of Ventilator for Supplying Fresh Air to Enclosed Spaces.
Year: 1898

page_text: 4000
Date of Application, 14th June, 189
Complete Specification left 14th Mar. 1899-Accented 15th Apr. 1899
Complete Specification Left 14th Mar 1899-Accented 15th Anr. 1899
PROVISIONAL SPECIFICATION.
An Improved Construction of Ventilator for Supplying Fresh Air to
Enclosed Spaces.
We, CHARLES ELLIS and FREDERICK HORATIO STREET, trading as Ellis and
Street, of 5, Humber Chambers, Princes Dock Street, City of Hull, in the County
of Yorkshire, Ventilating Engineers, do hereby declare the nature of this inven-
tion to be as follows:-
The object of our invention is to construct an improved form of ventilator of
the kind commonly known as downcasts ventilators, which will induce an incur-
rent of air into apartments, ship cabins and holds, or other enclosed spaces, so
that by means of suitable uptake or exhaust ventilators a continual current of
fresh air is caused to pass through such enclosed spaces and be carried away,
so leaving the apartment free from vitiated air.
For the purpose of our invention, we employ a tube or pipe of suitable thick-
ness for inserting into the roofs, walls, ceilings or other parts of buildings,
carriages, sewers, ships, or the like, this tube or pipe has an enlarged part
fitted to it, such part being provided with holes, preferably in the form of short
tubular projections, shields being provided at some little distance away from these
holes, these shields can be attached in any suitable manner but are preferably
fitted to flanges projecting at the required distances apart on the tube or pipe
aforesaid.
The holes in the enlarged part are divided by means of plates which pass
through them, these plates in the case of vertical ventilators, for example, pass
from the shields through to the inner tube or pipe, dividing the holes or air
passages into two parts vertically; the tube or pipe is carried for some distance
up the inside of the enlarged part but not quite up to the top, a suitable space
being left between the end of the tube and the top or roof of the ventilator,
the plates are continued at this part and run across the top of the tube dividing
the space into so many parts as there are plates.
It will be understood that the method of fixing the plates will vary in its
application to the many different shapes of ventilators, but the principle will
be the same in all cases. Inclined strips are employed for carrying off any water
which may enter through the air holes or passages.
The introduction of the air into the apartment or the like, is caused as
follows:-
When the ventilator is fixed, the wind or current of air blows between the
shields, and the enlarged part of the ventilator which contains the air holes,
which in our invention are preferably tubular projections, instead of the current
passing away through the shields and into the open again, and causing a vacuum,
and drawing the air out of the apartment as it does in uptake ventilators, it
comes in contact with the plates which block up the shields and prevent it pass-
ing through, this checking or deflecting of the air causes it to rush through the
tubular projections or air passages into the space between the enlarged part and

page_text: the inner tube or pipe, the plates dividing such space into compartments, whence
it passes into the said inner tube or pipe between the top or roof of the ventilator
and the top end of the pipe, through which it is carried into the apartment or
the like being ventilated.
By the employment of these downcast ventilators in conjunction with suitable
uptake or exhaust ventilators a continual current of fresh air can be made to
pass through rooms or other enclosed spaces which require ventilating.
T
1000
JOHN E. WALSH,
Savile Street, Hull, and Crossley Street, Halifax,
Patent Agent for the Applicants.
An Improved Construction of Ventilator for Supplying Fresh Air to
Enclosed Spaces.
We, CHARLES ELLIS and FREDERICK HORATIO STREET, trading as Ellis and
Street, of 5. Humber Chambers, Princes Dock Street, Hull, in the County of
Yorkshire, 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 our invention is to construct an improved form of ventilator of
the kind commonly known as downcast ventilators, which will induce an incur-
rent of air into apartments, ship cabins and holds or other enclosed spaces, so
that by means of suitable uptake or exhaust ventilators a continual current of
fresh air is caused to pass through such enclosed spaces and be carried away
so leaving the apartment free from vitiated air.
DESCRIPTION OF DRAWINGS.
Fig. 1 represents an elevation of a vertical circular ventilator with our im-
provements applied.
Fig. 2 represents a sectional plan view with the top or roof removed.
Fig. 3 represents a vertical sectional view.
For the purpose of our invention we employ a tube or pipe A of suitable
thickness and shape for inserting into the roofs, walls ceilings or other parts of
buildings, carriages, sewers, ships or the like, this tube or pipe has an enlarged
part B fitted to it such part B being provided with holes preferably in the form
of short tubular projections C shields D being provided at some little distance away
from these holes C these shields D can be attached in any suitable manner but
are preferably fitted to a flange or flanges E and to the top or cover F which
project the required distances to leave a space between the holes or tubular
projections C and the shields D.
'
The holes C in the enlarged part are divided by means of plates G which pass
through them these plates in the case of vertical ventilators for example pass
from the shields D through to the inner tube or pipe A dividing the holes or air
passages into two parts vertically the tube or pipe A is carried for some distance
up the inside of the enlarged part but not quite up to the top a suitable space
being left between the end of the tube and the top or roof F of the ventilator
the plates Gare continued at this part and run across the top of the tube A divid-
ing the space into so many parts as there are plates,
It will be understood that the method of fixing the plates will vary in its
application to the many different shapes of ventilators but the principle will be

page_text: the same in all cases, as for instance in flat ventilators no inner tube such as A
would be required the dividing plate or plates G would simply run from the
shield or shields to the centre of the tubular projections C or the holes for the
admission of air if tubular projections are not used.
The drawings show our invention applied only to vertical circular ventilators
that being the class of ventilator most commonly used but our improvements are
applicable to every kind of ventilator having a shield or shields and holes or air
passages in combination. Inclined strips H are employed for carrying off any
water which may enter through the air holes or passages.
The introduction of the air into the apartment or the like is caused as
follows:-
When the ventilator is fixed the wind or current of air blows between the
shields D and the enlarged part B of the ventilator which contains the air holes C
which in our invention are preferably tubular projections instead of the current
passing away through the shields and into the open again and causing a vacuum
and drawing the air out of the apartment as it does in uptake ventilators it
comes in contact with the plates G which block up the shields and prevent it
passing through; this checking or deflecting of the air causes it to rush through
the tubular projects or air passages C into the space between the enlarged part B
and the inner tube or pipe A the plates G dividing such space into compartments
whence it passes into the said inner tube or pipe A between the top or roof F
of the ventilator and the top end of the pipe through which it is carried into the
apartment or the like being ventilated.
By the employment of these down cast ventilators in conjunction with suit-
able uptake or exhaust ventilators a continual current of fresh air can be made
to pass through rooms or other enclosed spaces which require ventilating.
Having now particularly described and ascertained the nature of this in-
vention and in what manner the same is to be performed we declare that what
we claim is;—
1. In ventilators having shields and air holes in combination, the employment
of a plate or plates running from each shield to the centre or other suitable part
of its accompanying air hole or holes so dividing such air hole or holes stopping
the passage of the air through the space between the shield and the air holes
and causing it to pass through such air holes and into the ventilator and thus
to the apartment in the manner and for the purposes substantially as shown and
described.
2. The combination of the tube or pipe A enlarged part B holes or tubular
projections C shields D dividing plates G and inclined strips H in the manner
and for the purposes substantially as shown and described.
Dated this Thintaanth dov of Manah 1000
JOHN E. WALSH,
Savile Street, Hull, and Crossley Street, Halifax,
Patent Agent for the Applicants.