Improvements in Humidifying Apparatus.
Year: 1895

page_text: Date of Application, 26th Nov., 1895
Complete Specification Left, 30th July, 1896-Accepted, 21st Nov., .1896
Improvements in Humidifying Apparatus.
I, JOHN TAYLOR, Managing Director of Dowson, Taylor & Co. Ltd.
Engineers, Blackfriars Bridge Manchester, do hereby declare the nature of this
invention to be as follows:-
In the Specification of Letters Patent granted to me No. 11494 of 1893, I
describe and illustrate one of my humidifying machines, which is of a type largely
used.
This machine is suspended from the ceiling of the room to be humidified in
suitable positions, and connected with a water supply and return pipe. The supply
pipe contains water under pressure which is divided by the patent nozzle into a
cone shaped spray inducing a current of air from around the upper part of the
machine, which is drawn through the casing of the humidifier and discharged at its
lower end in a moistened condition.
When ventilation is required in addition to humidification the shape of the
machine is generally modified, and a connecting tube is taken from the upper end
of the machine to the outside of the building either through the roof or a wall or
a window. These tubes have to be provided with shutters or doors for closing off
the outside air when the machine is not in use, and the object of my present inven-
tion is to make these shutters or doors automatic or self-closing and opening.
The method which I employ is, to place on the water supply pipe a chamber
containing a diaphragm which is connected on the outside by a lever or levers, to
the shutter in the air tube. When the pressure of water is turned on to the
machine the diaphragm is expanded and the shutter pushed open, and it remains in
this position until the pressure is removed from the supplying pipe, when it closes
again, either by its own weight or by a spring.
Another modification of my invention would be to utilise the current of water
either in the feed or return pipes, by introducing a screw or worm which would be
revolved and would mechanically open the shutter or door.
Still another modification would be, by the dead weight of the water from the
machine being collected into a pan or vessel. This weight, when sufficiently
accumulated would pull open the shutter; the bottom of this pan would be provided
with a small outlet hole through which the water would be afterwards slowly
escaping, and when the supply was turned off, it would drain dry and the shutter
would close.
The gist of the invention is, that the turning on or off of the water will respec-
tively open and close the shutter, whether by pressure, flow, or the dead weight of
the water used in the system.
Dated this 25th day of November 1895.

page_text: Improvements in Humidifying Apparatus.
I, JOHN TAYLOR, Managing Director of Dowson, Taylor and Company
"Limited," Engineers, Blackfriars Bridge, Manchester in the County of Lancaster,
do hereby declare the nature of my said invention and in what manner the same
is to be performed, to be particularly described and ascertained in and by the
following statement:―
In the Specification of Letters Patent granted to me No. 11494 of 1893, I
describe and illustrate one of my humidifying machines, which is of a type largely
used. This machine is suspended from the ceiling of the room to be humidified in
suitable positions, and connected with a water supply and return pipe. The supply
pipe contains water under pressure which is divided by the patent nozzle into a
cone shaped spray inducing a current of air from around the upper part of the
machine, which is drawn through the casing of the humidifier and discharged at its
lower end in a moistened condition. When ventilation is required in addition to
humidification the shape of the machine is generally modified, and a connecting
tube is taken from the upper end of the machine to the outside of the building
either through the roof or a wall or a window. These tubes have to be provided
with shutters or doors for closing off the outside air when the machine is not in
use, and the object of my present invention is to make these shutters or doors
automatic or self-closing and opening. The method which I employ is, to place
on the water supply pipe a chamber containing a diaphragm which is connected on
the outside by a lever or levers, to the shutter in the air tube. When the pressure
of water is turned on to the machine the diaphragm is expanded and the shutter
pushed open, and it remains in this position until the pressure is removed from the
supplying pipe, when it closes again, either by its own weight or by a spring.
Another modification of my invention would be to utilise the current of water
either in the feed or return pipes, by introducing a screw or worm which would be
revolved and would mechanically open the shutter or door.
Still another modification would be by the dead weight of the water from the
machine being collected into a pan or vessel. This weight, when sufficiently
accumulated would pull open the shutter; the bottom of this pan would be provided
with a small outlet hole through which the water would be afterwards slowly
escaping, and when the supply was turned off, it would drain dry and the shutter
would close.
The gist of the invention is, that the turning on or off of the water will
respectively open and close the shutter, whether by pressure, flow, or the dead
weight of the water used in the system.
DESCRIPTION OF DRAWINGS.
Fig. 1 is a sectional elevation of my improvements in humidifying apparatus,
and Fig. 2 a sectional elevation through line A B in Fig. 1.
A is the casing of the humidifying apparatus; B the shutters; C water supply
pipe D diaphragm; E diaphragm spindle; F crosshead; G links or rods
connecting crosshead with levers H attached to shutters B. On the water supply
pipe C I place the metallic vessel composed of the upper and lower parts F and F
and jointed by the flanges I, the latter being secured by bolts or their equivalents.
Between the flanges 1 is secured the flexible diaphragm D attached to the spindle E
by the washer J and nut K. The upper end of the spindle E is fitted with the
crosshead F to which is secured the links or rods G by the pin or centre M. The
upper ends of the links or rods G are pivoted to the levers H by the pins N.
The levers H are mounted on the centres O secured in the casing A of the

page_text: humidifying apparatus. The shutters B are attached-in any convenient manner-
to the levers H. The casing A is provided with the fixed inverted V piece P in
connection with which operates the shutters B according to the movements of the
flexible diaphragm D and the intervening parts. When the pressure of the water
is turned on through the pipe C the diaphragm D is expanded causing the spindle E
to rise by which action the connecting rods and links G are raised, which action
operates on the levers H and causes the shutters B to be pushed open or removed
from the inverted V piece P, at which point it remains open until the pressure is
removed from or sufficiently reduced in the supply pipe C, when the diaphragm D
again drops and allows the shutters B to come in contact with the edges of the
inverted V piece P, which may be effected by the weight of the intervening parts
or by the action of the spiral spring Q.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
1. In humidifying apparatus for the indicated purposes the combination and
arrangement of parts composed of the cylinder A, angular division P, oscillating
flaps B mounted on the pivoted levers H, the latter being operated from the
spindle E connected with the flexible diaphragm D according to the pressure
supplied from the pipe C, substantially as described and shown.
2. The use and construction of self-acting shutters introduced in the air supply
pipe or tube of a humidifying apparatus, the said shutters being operated by the
pressure, flow, or dead weight of the water used in connection with the humidifying
apparatus, substantially as described and illustrated.
Dated the 29th day of July 1896.
EDMUND CHADWICK,
Agent.