Improvements in Heating and Ventilating Apparatus.
Year: 1889

page_text: Date of Application, 23rd Aug., 1889-Accepted, 28th Sept., 1889
COMPLETE SPECIFICATION.
Improvements in Heating and Ventilating Apparatus.
I, WILLIAM ROBERT MAGUIRE, of 10, Dawson Street, Dublin, Ireland, 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 :—
This invention relates to combined heating and ventilating apparatus adapted for
providing large quantities of fresh pure warm air and therefore especially suitable
for use for warming public buildings, dwelling houses, Turkish baths and like places,
and the invention consists in the use in combination with a suitable arrangement of
furnace or furnaces and heating chamber of a series of tubes, open at their upper and
lower ends and placed vertically in the said chamber and arranged round the walls
thereof so as to receive the radiant heat from the furnace or furnaces and communi-
cate it rapidly to the air which surrounds and is passing through them.
In order to enable my invention to be fully understood I will describe how it can
be carried into practice by reference to the accompanying drawing, in which-
Figure 1 is a vertical section, and
Figure 2 a horizontal section of a heating and ventilating apparatus provided with
my improvements.
Similar letters in both the figures indicate similar parts.
a is the heating chamber and 6, 61 are massive cast iron furnaces by the radiant
heat from which the chamber is warmed. c and d are air-ducts provided with
regulating valves, not shewn in the drawing, for admitting air to the chamber a:
e is a grating in the floor of the building placed on the main shaft or passage for
delivering the fresh air which has become warmed by its passage through the chamber a
into the building. The furnaces are fitted with horizontal smoke flues f, f' which
assist to heat the said air; 9, 9 are doors to allow of cleaning out the flues f,fl; his
an inspection door; i, i are the furnace doors; j, j are the ash-pit doors; and k is an
auxiliary shaft for conducting warm air to various parts of the building.
The above described arrangement of furnaces and heating chamber (to which no
separate claim is made) is one which I have found to give good results in practice but
other arrangements may be adopted, provided the furnaces are made air-tight to pre-
vent impure air, smoke or ashes entering the heating chamber a and that care be
taken that the appliances used are those which will give good results and allow full
control over the action of the flues and other parts of the apparatus.
To an arrangement of apparatus, such as that above described I apply my tubes 1, 1, 1,
made of metal or earthenware, open at both ends, placed vertically in the chamber a,
and arranged around and fixed to the walls of the said chamber at a short distance
from the furnaces b, b' so as to receive the heat radiating therefrom and communicate
it rapidly to the air surrounding the tubes and passing through them. The arrows
indicate the course taken by the air from its admission at c and d into the lower
part of the chamber a to its discharge at e and k in a heated condition into the
building or other place to be heated.
By the use of my tubes 1, the air becomes heated in a more rapid, better and more
wholesome manner than hitherto. The number of the tubes can obviously be varied
according to requirements and being arranged vertically they are little liable to accu-
mulate dust and can be easily cleaned with a brush.
Having now particularly described and ascertained the nature of my invention and
the manner of performing the same I declare that what I claim is :-
1. The use in combination with a suitable arrangement of furnace or furnaces and a
heating chamber, of a series of tubes, open at both ends, and arranged vertically round

page_text: the walls of the said chamber so as to receive the radiant heat from the furnace or
furnaces and communicate it to the air which surrounds and passes through them
substantially as hereinbefore described.
2. The improved heating and ventilating apparatus hereinbefore described and
illustrated in the accompanying drawing.
Dated the 23rd day of Angust 1889
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.