IMPROVEMENTS IN FEED WATER PURIFIERS
Year: 1884

page_text: This Specification was, upon the 14th day of August 1888, amended under
Sections 18 to 21 of the Patents, Designs, and Trade Marks Act, 1883.
I, WILLIAM EDWARD GEDGE of N° 11 Wellington Street, Strand, London, in
the County of Middlesex, Patent Agent do hereby declare the nature of my
invention for "IMPROVEMENTS IN FEED WATER PURIFIERS" to be as follows:—
My Invention relates to the purifying of feed water for steam boilers The
object sought to be attained is to produce a device or apparatus that can be applied
to boilers of whatever form and in whatever situation at very small expense for
the effective purifying and feeding of water thereto.
The several improvements included in and constituting my invention consist of
a precipitating and purifying tube or compartment of novel construction and in
combination therewith a means for delivering the feed water into the steam
generating space of the boiler in the form of jets or of finely divided streams all as
hereinafter fully set forth.
The manner in which I proceed to form, construct, apply, and operate my said
invention is explained and pointed out in the following description, the accom-
panying drawing being referred to by letters and figures.
In the said drawing:-
Figure 1, is a perspective view of a boiler to which my improved Device has been
applied.
Figure 2, is a longitudinal section taken through the parts of the Device.
Figure 3, shows a modification or different form of the device for use in boilers
where the space is contracted as hereinafter explained.
A, is a tube closed at one end, and with the other or open end fitted into a
coupling B. This tube is divided longitudinally within into an annular space a
and a central cylindrical space 6 by means of a smaller tube C that is inserted from
the coupling end of the larger tube and is of such length that its inner end
terminates just short of the cap or plug A', on the closed end of the outer tube so
that at the outer end the two spaces a, b, communicate.
This internal tube passes through the coupling and is fixed into a screw threaded
socket d, at the end wherein connection for the end of a feed pipe E, is also
afforded.

page_text: The pipe E, is the feed pipe having connection with the usual pump and source
of feed water supply, while the tube C, is practically a continuation of this feed
pipe into the boiler wherein it is then surrounded by the larger tube A, which is
inserted through an opening provided in the shell.
The coupling B, has about the same diameter internally as the principal tube A,
and from the space therein an outlet, with a connection for a blow off pipe g is
provided.
From the annular space a the water entering the tube is admitted into the
boiler space through an outlet or outlets in the principal tube.
Such outlets consist of several holes nipples or orifices of suitable size to deliver
the feed water in small streams or jets into the boiler water.
I employ two modes of delivering the feed water from the purifying tube of
which one is shown in figure 2, and the other in figure 3, of the drawing. This
last named mode consists in making a single outlet from the tube A, and by means
of a coupling d', connecting a spray pipe H, which being closed at both ends is
provided with apertures in spaced rows or in clusters.
This form of the apparatus is convenient for applications to boilers where the
space will not admit of a long precipitating tube, and in cases where the position
of the boiler will not permit the other forin to be applied without cutting away the
shell or disturbing the setting.
The other mode which is serviceable where the form and situation of the boiler
will admit, enables me to dispense with the distributing pipe H, and it has the
advantage of giving a large amount of heating surface and of distributing the
purified water from several points, along the whole length of the water space, and
therefore in an even manner into the body of boiler water.
As thus constructed the device is located in the water space of the boiler or
between the limits of high and low water so as to be partly in the stream space
and more or less submerged at times in the boiler water. The feed water admitted
through the pipe E, becomes separated by its passage through the tube C, and
between the two tubes and is quickly acted upon by the surrounding temperature,
in consequence of which action and the quiet condition induced by the circuitous
passage through the two spaces separation and precipitation of solid matter and
impurities contained in or brought in by the water are effected; the bottom
surfaces along the two spaces a, b, receiving this sediment and the upper part of
the tube A, contains water in condition for distribution into the boiler.
Dated this thirtieth day of August 1881

page_text: DE MOLNICATION (AMENDED).
I WILLIAM EDWARD GEDGE of N° 11 Wellington Street Strand London, in the
County of Middlesex Patent Agent do hereby declare the nature of my invention
for "IMPROVEMENTS IN FEED WATER PURIFIERS" (a communication from the
California Feed Water Purifying Company of San Francisco California United
States) and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement:-
My invention relates to the purifying of feed water for steam boilers.
The object sought to be attained is to produce a device or apparatus that can be
applied to boilers of whatever form and in whatever situation at very small
expense for the effective purifying and feeding of water thereto.
The several improvements included in and constituting my invention consist of
a precipitating and purifying tube or compartment of novel construction and in
combination therewith a means for delivering the feed water into the steam
generating space of the boiler in the form of jets or of finely divided streams all as
hereinafter fully set forth.
The manner in which I proceed to form, construct, apply and operate my said
invention is explained and pointed out in the following description, the accom-
panying drawing being referred to by figures and letters.
In the said drawing
:―
Fig 1. is a perspective view of a boiler to which my improved device has been
applied.
Fig 2. is a longitudinal section taken through the parts of the device.
Fig 3. shows a modification or different form of the device for use in boilers
where the space is contracted, as hereinafter explained.
A is a tube closed at one end, and with the other, or open end fitted into a
coupling B. This tube is divided longitudinally within into an annular space a,
and a central cylindrical space b, by means of a smaller tube C, that is inserted
from the coupling end of the larger tube and is of such length that its inner end
terminates just short of the cap or plug A¹, on the closed end of the outer tube so
that at the outer end the two spaces, a-b communicate.
This internal tube passes through the coupling and is fixed into a screw threaded
socket, at the end wherein connection for the end of a feed pipe E, is also
afforded.
The pipe E, is the feed pipe having connection with the usual pump and source
of feed water supply while the tube C is practically a continuation of this feed
pipe into the boiler wherein it is then surrounded by the larger tube A, which is
inserted through an opening provided in the shell. The feed pipe and the blow off
are provided with the necessary cocks and check valves for regulating the feed and
controlling the discharge.
The coupling B has about the same diameter internally as the principal tube A
and from the space, 1, therein an outlet f, with a connection for a blow off pipe g
is provided.
From the annular space, a, the water entering the tube is admitted into the
boiler space through an outlet or outlets in the principal tube, such outlets consist of

page_text: several holes, nipples, or orifices of suitable size to deliver the feed water in small
streams or jets into the boiler water. I employ two modes of delivering the feed
water from the purifying tube, of which, one is shewn in fig 2 and the other in
Fig 3 of the drawing.
This last named mode consists in making a single outlet from the tube A and,
by means of a coupling d', connecting a spray pipe H which being closed at both
ends is provided with apertures in spaced rows or in clusters.
This form of the apparatus is convenient for application to boilers where the
space will not admit of a long precipitating tube and in cases where the position of
the boiler will not permit the other form to be applied without cutting away the
shell or disturbing the setting.
The other mode which is serviceable where the form and situation of the boiler
will admit, enables me to dispense with the distributing pipe H, and it has the
advantage of giving a large amount of heating surface and of distributing the
purified water from several points along the whole length of the water space and
therefore in an even manner into the body of boiler water. As thus constructed
the device is located in the water space of the boiler or between the limits of high
and low water so as to be partly in the steam space and more or less submerged
at times in the boiler water: The feed water admitted through the pipe E,
becomes separated by its passages through the tube C. and between the two tubes
and is quickly acted upon by the surrounding temperature in consequence of which
action and the quiet condition induced by the circuitous passage through the two
spaces separation and precipitation of solid matter and impurities contained in or
brought in by the water are effected the bottom surfaces along the two spaces, a, b,
receiving this sediment and the upper part of the tube A containing water in
condition for distribution into the boilers.
"Having now particularly described and ascertained the nature of my said
invention as communicated to me by my Foreign correspondent and in what
manner the same is to be performed-I declare that what I claim is :"
1. A feed water purifier attachment for steam boilers consisting of the pre-
cipitating tube formed of the inner and the outer tubes A. C.: a feed pipe coupled
to the inner tube an outlet or outlets from the outer tube into the boiler space and
a blow off outlet from the outer tube to the outside of the boiler and suitable
valves on the feed and blow off pipes substantially as hereinbefore described.
2. In combination with a steam boiler, a precipitating chamber or compartment
formed of an inner and outer tube inclosing water spaces a b. of which one is a
continuation or extension of the feed pipe into the boiler and the other one has
a blow off to discharge outside of the boiler, communication between the said outer
tube and the boiler space being through an aperture or apertures in the tube
substantially as hereinbefore described for the purpose set forth.
3. The precipitating tubes A. C. the feed and blow off pipes and the perforated
distributing pipe H in combination together, substantially as hereinbefore described.
Dated this Fifteenth day of May 1885.
W. E. GEDGE.