Year: 1887

page_text: Date of Application, 23rd Feb., 1887
Complete Left, 9th Nov,, 1887
Complete Accepted, 20th Dec., 1887
I RICHARD WALTER HELLYER of No. 97 Park Street Grosvenor Square Builder,
Decorator and Sanitary Engineer do hereby declare the nature of this invention to he
as follows:-
To supply fresh warm air into and warming & illuminating the interior of buildings
rooms or offices and also for taking off the vitiated air and all products of combustion
It consists of one or more burners to consume coal gas or an inflammable liquid the
said burner or burners are enclosed with glass and metal and called chamber No. 1.
This chamber is surmounted with two pipes and made to communicate with the external
wall These pipes are called outlet and inlet pipes The outlet pipe is fitted with a down
draught check or cowl and passes through the inlet pipe and takes off all products of
combustion and vitiated air of the room or place to which the apparatus is fixed and
the inlet pipe which supplies fresh warm air to the room or place and to the burner or
burners this pipe is made to enclose a portion at least of the outlet pipe and is divided
into two chambers called chambers No. 2 and three (2 and 3) chamber No. 2 is fitted
immediately over chamber No. 1 communication to this chamber is made with a man-
hole or door, and in which the outlet pipe is disconnected Chamber No. 3 is immedi-
ately over chamber 2 and extends to the external wall There is attached to chamber 3
an inlet ventilator to allow the air drawn into it by the heat of the outlet pipe to
escape into the room. Communications between chambers 1 and 3 are made by a pipe
to feed the flame or otherwise an independant pipe is taken from the external wall
direct to the flame A pipe with a valve & ventilator is attached to chamber No. 1 to
take off the vitiated air of the place to which the said apparatus is attached.

page_text: COMPLETE SPECIFICATION.
Ventilating, Warming, and Illuminating Apparatus.
I RICHARD WALTER HELLYER of Number 97 Park Street Grosvenor Square
London W. Builder and Sanitary 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 :-
The primary object of my invention is to supply fresh warm air into and for
warming and illuminating the interior of buildings rooms or offices and also for
taking off the vitiated air therefrom and all products of combustion. It consists of one
or more burners to consume coal gas but although I refer to coal gas as the medium I
wish it to be understood that I do not confine myself thereto inasmuch as in cases
where gas is unobtainable inflammable liquid might be employed with burner or
burners suitable for such purpose. The said burner or burners are enclosed with
casing of glass the top being fitted with metal framing to form a chamber which I
call chamber No. 1. marked A on drawing and immediately over the said burner or
burners is fitted a glass chimney the top of which is also fitted into metal framing-
Immediately over chamber No. 2 and marked B on drawing are surmounted two pipes
called outlet & inlet pipes; the outlet pipe marked EE E is conveyed to the external
wall and as much further as may be necessary and takes off all products of combustion
and the vitiated air of the place to which the apparatus is fixed and is supplied with a
down draught check or cowl; the said inlet pipe which I call chamber No. 3 marked C
is made so as to enclose the said outlet pipe as much as possible and is also carried to
the external wall. This pipe supplies fresh air to the room or place to which the
apparatus is fixed and by the heat of the said outlet pipe the air is drawn into it and
warmed and the current multiplied, it also supplies air to chamber No. 1 in order to
feed the burner or burners; it can be conveyed to this chamber either as a branch
from the said inlet pipe marked C as shewn by dotted lines at D or taken through
pipe marked D direct from the outer wall; to this pipe a manhole or door is attached
to be opened at pleasure to take off the vitiated air of the room. The said outlet pipe
marked E. E. E commences in chamber No. 1 marked A and passes into chamber
No. 2 marked B and through chamber No. marked C. by means of pipe E E E
Chamber No. 2 marked B disconnects the said outlet pipe and access to it is obtained
by a manhole or door and by means of a valve attached to the said manhole or door
the said outlet pipe can be entirely shut off at such times as when the manhole or
door is opened Chamber No. 3 marked C extends to the external wall & is fitted
with a ventilator which is referred to below to regulate the discharge of fresh air into
the room or place I now show by the accompanying drawing the apparatus as
attached to a wall but it only represents one of the many means of its application-
A represents as aforesaid chamber No. 1. B. chamber No. 2. C. chamber No. 3.
D. branch inlet pipe to feed burner. E. E. E. outlet pipe. When the apparatus is

page_text: suspended from a ceiling chamber No. 3 marked C is altered and the ventilator now
shewn at the top of this chamber is fitted to come at the bottom under the ceiling line.
The apparatus in point of size is governed by the work it will have to do.
Having now particularly described & ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what I
claim is
The novelty of providing a constant supply of fresh warm air into and in warming
and lighting the interior of buildings by two separate air chambers as shewn in
drawing marked A and C and for taking off the vitiated air through pipe E E E
and all products of combustion as accumulated without either using or contaminating
the air of the place to which my invention is applied.