IMPROVEMENTS IN THE MEANS OR APPARATUS EMPLOYED IN THE VENTILATION OF RAILWAY CARRIAGES AND OTHED VADIOLO of
Year: 1882

page_text: LETTERS PATENT to Anthony Robinson Harding and Joseph William Harding,
Consulting Engineers, both of Leeds in the County of York, for an Invention
IMPROVEMENTS IN THE MEANS OR APPARATUS EMPLOYED IN THE
VENTILATION OF RAILWAY CARRIAGES AND OTHED VADIOLO
of
2
"
PROVISIONAL SPECIFICATION_left by the said Anthony Robinson Harding
and Joseph William Harding at the Office of the Commissioners of Patents on
the 7th August 1882.
ANTHONY ROBINSON HARDING and JOSEPH WILLIAM HARDING, Consulting
Engineers, both of Leeds in the County of York, IMPROVEMENTS IN THE MEANS
OR APPARATUS EMPLOYED IN THE VENTILATION OF RAILWAY CARRIAGES AND OTHER
VEHICLES AND BUILDINGS."
Our Invention has reference to the ventilation of railway carriages and other
vehicles, and its object is to cleanse the air as it passes therein from dust, soot, and
other impurities and afterwards to diffuse it therein without any draught or
inconvenience to the occupants.
Our Invention consists in providing a water tank in a convenient position on or
in the vehicle. By motion of the vehicle the air is caused to pass through a
trumpet shaped mouth piece or tube and thence onto the water (which is contained
in tank) with considerable pressure and in such a direction as to throw up a
continuous spray or splash, through which the air is passed and freed from its
impurities, it then passes through a suitable air passage into the interior of carriage.
We by preference diffuse the air in the carriage by passing it through a pendant
diffuser constructed on a principle similar to those described in the specification of
our patent dated 14th October 1878. The above described apparatus is so constructed
that it can be readily removed for cleansing purposes.
"
For the outlet of vitiated air we employ a tube, to the outer end of it is applied
a double coned chamber having its widest ends meeting. This chamber is per-
forated over its surface and through to its interior, and being thus constructed the
slightest wind playing upon it causes an increased current up the tube from the
interior of compartment or room and all down draught is avoided.
This arrangement may be applied either in combination with the herein before
mentioned air diffuser or other inlets for air.

page_text: onto the surface thereof and throws up a continuous spray or splash, through
which the air passes and is freed from its impurities, after which it continues its
course through the tube h to the air diffuser i and is diffused in the carriage
without any draught or inconvenience to the occupants.
When the air rushes in at the other mouth the operation is the same.
When we use the swing valve f and when the rush of air is in the direction
shewn by arrow k the other open mouth is closed by such valve f and the
air directed down the air passage onto the water and cleansed as before described.
When we employ the swing valve f we dispense with the use of the balance
valve e.
The inverted cover or box 6 may be held down by the ordinary means as
employed for box lids or any other suitable or convenient method.
For the outlet of vitiated air we employ a tube 1 over which is placed a double
coned chamber 2. This chamber is perforated over its entire surface through to its
interior. It may be mounted on a bearing plate 3 such bearing plate being
attached to the tube 1 or the double coned chamber may be attached to the
tube 1 direct. The slightest external wind impinging upon the perforated cones
creates an induced current up the vertical tube 1 drawing the foul air from the
interior and expelling it through the perforations.
The cover 4 is used in cases where it is necessary to prevent rain passing into
the interior of the double coned chamber 2 and down the tube 1. The cover is
quite unnecessary when such a precaution is not required. These outlets may be
applied to railway carriages in the manner shewn at Fig 4, and to ordinary
buildings in a similar manner to air extractors of ordinary construction.
Having now described the nature of our said Invention and described with the
aid of drawings how the same may be carried into practice we would it under-
stood that we do not limit ourselves to the precise details or configuration of
the parts we have described and shewn as the same may be varied or modified
without departing from the nature of our said Invention; what we do claim is :-
The arrangement, construction, and application of the means employed for
receiving, cleansing, or filtering and transmitting air to air diffuser, for the purpose
of supplying and diffusing the same in railway carriages, and other vehicles,
substantially as and for purposes herein set forth.
The arrangement, construction, and application of apparatus shewn at Figs 5
and 6 for extracting the vitiated air, substantially as and for purposes herein set
forth.
The general arrangement and combination of the various parts forming the
means employed for ventilating railway carriages and other vehicles and mere
modifications of the same, substantially as and for purposes herein set forth.
In Witness whereof, we, the said Anthony Robinson Harding, and Joseph
William Harding, have hereunto set our hands and seals this sixth day of
February, in the year of Our Lord one thousand eight hundred and eighty
three.
AR HARDING (L.S.)
J W HARDING (L.S.)