Improvements in Ventilators for Ventilating Rooms, Buildings and the like.
Year: 1898

page_text: Date of Application, 18th Aug., 1898-Accepted, 15th Oct.,
1898
COMPLETE SPECIFICATION.
Improvements in Ventilators for Ventilating Rooms, Buildings
and the like.
I, JAMES CARK, of Perambulator Works, Trafalgar Street, in the City of Brad-
ford, Perambulator Manufacturer, 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 ventilators for ventilating rooms,
apartments, buildings and the like, and its object is to provide a ventilator which
may be used to discharge foul and heater gases or introduce fresh air.
To fully describe my invention reference is made to the accompanying sheet
of drawings, forming a part of this specification, in which similar letters of refer-
ence indicate corresponding parts in each of the figures.
Figure 1, represents an elevation of my improved ventilator.
Figure 2, is a cross section of the same with the ventilator lid closed and the
deflector in one position.
Figure 3, is a similar view with the ventilator lid open and the deflector in
another position.
The improved ventilator consists of a box or case having a back A, sides A³
and A3 and a top A. This box is adapted to be secured in any convenient way
with the back A against the wall or side of the apartment to be ventilated and an
opening B is made through the back which opening is placed in communication
with an air inlet or outlet passage formed in the wall or side of the apartment.
The ventilator lid is provided with two sides C and C2, a curved back C³ and a
top C. The lid is pivoted between the sides A2 and A³ of the case by the pins D, D
secured to its back C, A stud E fixed to the side C projects through a curved
slit E2 in the side A². A cord G, passing over the pulley G2 mounted on the
stud G fixed outside the case has one end connected to the stud E and the other
end hangs down to within convenient reach so that by pulling the string the lid
can be moved from the position shown in Figure 3 to that shown in Figure 2 to
close it. A cord fastener is provided below to which the end of the cord can be
secured to hold the lid in this position, and a weight H or its equivalent is pro-
vided to open the lid, that is to say: cause it to swing to the position shown in
Figure 3 when the cord G is released or sufficiently slackened.
To deflect the air admitted by the ventilator forwards and more or less upwards
I employ a deflector consisting of two sides J and J2 and a curved bottom J³.
This deflector is preferably pivoted by its pins J, J* between the sides A2 and A³
of the case and a cord and pulley L and L2 are provided by which the position of
the deflector may be adjusted to any position from that shown in Figure 2 to that
shown in Figure 3. The pulleys above referred to are shown without guards but
they are by preference encased in any ordinary way to prevent the cords being
thrown off.
It will be seen that the ventilator is of simple construction, that its range is
readily adjusted, and the direction of the inflowing current can be modified.

page_text: Having now particularly described and ascertained the nature of my said in-
vention, and in what manner the same is to be performed, I declare that what
I claim is:
1. A ventilator consisting of a case or box containing a swing lid and provided
with a curved deflector below, substantially as herein shown and described.
2. A ventilator consisting of a case or box containing a swing lid and provided
with a curved adjustable deflector below, substantially as herein shown and
described.
Dated 17
1000
DRACUP & NOWELL,
Patent Agents, Bradford.