An Improved Inlet Ventilator.
Year: 1898

page_text: Date of Application, 29th July, 1898-Accepted, 1st Oct., 1898
An Improved Inlet Ventilator.
We, CHARLES KITE and CILARLES FOSTER KITE, both of 132, Euston Road,
London, Sanitary 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:
This invention has for its object an improved inlet ventilator which is par-
ticularly adapted for use in hospital wards, stables, and other buildings and
places where it is desirable to admit large volumes of fresh air at low velocities.
In the accompanying drawings Figures 1, and 2 shew back and front eleva-
tions and Figure 3 a top plan of our improved inlet ventilator. Figure 4 is a
front elevation thereof with the screen plates removed to shew the baffle plates.
Figure 5 is a transverse section thereof taken on the line Z, Z. Figure 4, and
Figure 6 is a view in perspective of the back of one of the screen plates shewing
the check plates and springs. Similar letters of reference indicate corresponding
parts throughout the several views.
Such improved inlet ventilator consists of a box or casing a having at the back
a perforated plate b, through which the inlet air current passes. A central
baffle plate c is fitted internally in the box or casing while lateral baffle plates c¹,
are fitted on the front thereof as shewn in Figure 4. Such baffle plates serve
to moderate the force of the incoming air current. The front of the box or
casing is fitted with a vertical support to which removable and adjustable screen
plates e, are hinged as shewn at Figure 2, so that the incoming air current can
be thereby diverted and diffused throughout the surrounding space, thus prevent-
ing any direct draught and obviating the injurious results arising therefrom.
Such screen plates are made removable to facilitate cleaning the ventilator. In
order to prevent up and down draught check plates f furnished with springs g,
are fitted on the back of each screen plate as shewn at Fig. 6. The top and
bottom edges of the lateral baffle plates c¹ form guides over which the springs g
travel as the screen plates are operated to and fro, while owing to such springs
being compressed between the baffle plates c¹ and the check plates f they assist
in retaining the screen plates in position. In order to prevent such screen plates
being drawn out too far stops 1 are formed on the check plates, which stops
engage with the framing as shewn in Fig. 5 when the screen plates are drawn
out to their full extent. In this figure the position of the screen plates when so
fully drawn out together with the position of the check plates is indicated in full
lines, while the dotted lines in such figure indicate their position when closed.
Guard plates h are formed on or fitted to the front of the box or casing at top
and bottom in order to prevent injury by coming in contact with the edges or
corners of the screen plates. One of such guard plates is shewn in plan at
Figure 6 of the accompanying drawings.

page_text: Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed we declare that
what we claim is :-
1. In an inlet ventilator the combination of a central and lateral baffle plates
with adjustable and removable screen plates furnished with check plates to pre-
vent up and down draught, and otherwise so arranged and fitted that the incoming
air current can be diverted and diffused so as to obviate direct draught all sub-
stantially as hereinbefore described.
2. The improved construction of inlet ventilator all substantially as herein-
before described.
ELT & Co.,
Registered Patent Agents, 43, Southampton Buildings, London, W.C.,
Agents for Applicants.