Improvements in Feed Water Purifiers and Heaters, and Methods of Discharging Dirt and other Impurities from Steam Boilers.
Year: 1894

page_text: Date of Application, 1st Aug., 1894
Complete Specification Left, 1st May, 1895-Accepted, 6th July, 1895
PROVISIONAL SPECIFICATION.
Improvements in Feed Water Purifiers and Heaters, and Methods
of Discharging Dirt and other Impurities from Steam Boilers.
I, JOHN CHAPMAN, Engineer, of 32 Gate Street Swinton, near Manchester, in
the County of Lancaster do hereby declare the nature of this invention to be as
follows:-
My invention relates to improvements in feed water heaters & purifiers, in the
construction of which I make arrangements for collecting dirt, and other impurities,
admitted with the feed water into steam boilers, and the like, and discharging such
dirt and impurities by suitable blow off cocks or valves.
According to my improvements the feed water is delivered by pipes into, or on
to the cap or cover of a cylindrical vessel placed in the steam space of a boiler. The
outer rim of this cap or cover is inclined outwards and downwards, & the feed
water flows over it and falls on to a projection extending from the sides of
cylindrical or circular vessel. From the above said projection the feed water
flows on to another projection placed below, and which also extends from the sides
of cylindrical vessel. The latter projection is inclined outward from the sides at
an angle of about 45 degrees. From this inclined projection, the water flows to
the sides of said cylindrical vessel, at which point large holes are provided, through
which the feed water flows from outside to inside of cylindrical vessel. Below the
large holes, and inside the vessel, is placed a division plate, having an opening in
the centre, the feed water falls through this central opening, into the mud collector
below. The mud collector is provided with a recess, or well, into which dirt and
other impurities fall.
The bottom part of cylindrical vessel which is fixed, or stands in mud collector,
is provided with large boles, through which the feed water is forced to pass before
it can escape into the boiler. The feed water after entering the mud collector,
passes downwards, over the recess or well, before it escapes over the outer edge
into the boiler.
The bottom of mud collector is connected by pipes to blow off cock or cocks
outside the boiler. The blow off cock may be provided with a lever and float, for
automatically opening and shutting the blow off cock, thereby discharging the
dirt &c. from mud collector automatically.
The cylindrical vessel may be connidial or any other suitable shape.
One or more of the above devices may be used in one boiler.
Dated this 21st do of Tul 1904
JOHN CHAPMAN.
Improvements in Feed Water Purifiers and Heaters, and Methods
of Discharging Dirt and other Impurities from Steam Boilers.
I, JOHN CHAPMAN 32 Gate Street Swinton near Manchester Engineer do
bereby 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 :-
My invention relates to improvements in feed water, heaters & purifyers, in

page_text: construction of which I make arrangements for collecting dirt & other impurities
admitted with the feed water into steam boilers & the like & discharging such
dirt & impurities by suitable blow off cocks or valves.
According to my improvements the feed water is delivered into or onto the top
or cover of a cylindrical vessel placed in the steam space of a boiler, the outer rim
of this cap or cover is inclined outwards & downwards & the feed water flows over
it & falls on to a projection extending from the sides of cylindrical or circular
vessel from the above said projection, the feed water flows on to another projection
placed below & which also extends from the sides of the cylindrical vessel. The
latter projection is inclined outwards from the sides at an angle of about 45 degrees.
From this inclined projection the water flows to the sides of said cylindrical vessel
at which point large holes are provided, through which the feed water flows from
outside to inside of cylindrical vessel. Below the large holes & inside the vessel
is placed a division plate having an opening in the centre; the feed water falls
through this central opening into the mud collector below; the mud collector is
provided with a recess or well into which dirt & other impurities fall.
The bottom part of cylindrical vessel which is fixed or stands in mud collector,
is provided with large holes through which the feed water is forced to pass before
it can escape into the boiler. The feed water after entering the mud collector
passes downwards over the recess or well, before it escapes over the outer edge
into the boiler.
The bottom of mud collector is connected by pipes to blow off cock or cocks
outside the boiler. The blow off cock may be provided with a lever & a float for
automatically opening & shutting the blow off cock thereby discharging the dirt &c.
from mud collector automatically.
The cylindrical vessel may be conoidal or any other suitable shape. One or
more of the above devices may be used in one boiler.
In order that my invention may be fully understood, I now refer to the annexed
drawings in which :-
Figure 1 is a sectional side elevation of my invention.
6
The feed water enters the point marked a & passes thence to the plate or
surface from whence it falls onto the inclined surface c, & falling over plated is
conveyed by the inclined surface e to the plate whence it passes through
apertures & h to the lower receptacle & then falls over the cup into the boiler.
The conical guard is for the purpose of retaining any flurry," scum or
sediment, which might rise with the water; at I connect a suitable blow off
cock. It will be understood that the water from the inlet is partially vapourised
& during its passage, the various sediments are separated therefrom & may be
removed by opening a suitable blow off cock in connection with chamber l. m are
apertures for allowing the water to pass to the various parts as shown.
Having now particularly described and ascertained the nature of my said inven-
tion & in what manner the same is to be performed, I declare that what I
.claim is
1. In feed water purifyers, a series of filtering or settling surfaces during the
passage over which, the feed water is partially vapourised & the deposited sediment
is collected & may be blown off as desired substantially as herein described.
Dated this 1st of May 1895.
E. EATON,
Agent for Applicant.