Year: 1886

page_text: I RICHARD HOBBS TAUNTON of Heneage Street Birmingham in the County of
Warwick Tube Manufacturer do hereby declare the nature of this Invention to be
as follows:-
My invention consists of the improvements hereinafter described in Cornish
steam boilers and such other steam boilers as are not tubulous.
My said invention has for its object to prevent the deposition of earthy matter
in the said boilers by causing the earthy matter in the feed water to be wholly or
mainly precipitated and separated from the water before the water is permitted to
enter the boiler.
"In carrying my invention into effect I fix a coil of piping in the waste flue of the
boiler furnace or in any other heating chamber the axis of the coil being vertical.
The water with which the boiler is to be fed is introduced at the bottom of the said
coil by the feed pump. The water after traversing the said coil and becoming
thereby heated passes through a pipe in the steam space of the boiler. The said
pipe passes from one end of the boiler to the other and returning leaves the boiler
at the end at which it entered. The said pipe is slightly inclined downwards from
its entrance to its exit. The water by having been exposed to the heat of the
steam in the boiler has acquired the temperature of the steam and the earthy
miatter originally dissolved in it is precipitated and is suspended in the water. The
heated water with the suspended precipitate is conducted into a collector con-
sisting of two horizontal drums or pipes of large diameter external to the boiler.
These drums or pipes are connected at short intervals by vertical pipes of large
diameter and as the water slowly passes along the upper horizontal pipe the
suspended earthy matter falls down the vertical pipes into the lower horizontal pipe
from which it can be blown off. Small interceptors are fixed at short intervals
in the upper horizontal pipe by which interceptors the passage of the deposit
into the lower horizontal pipe is promoted.
The water in the upper drum thus purified from earthy matter passes from the
said drum into the lower part of the boiler.
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page_text: In order to prevent an accumulation of steam in the collector the top part of the
upper horizontal tube is connected by a pipe with the steam space of the boiler so
that any steam formed or passing into the collector passes by the said pipe to the
steam space of the boiler.
When the water is not passing into the boiler it continues to circulate in the
manner described and thereby becomes more effectually deprived of earthy matter.
Dated this eighteenth day of February 1886.
I RICHARD HOBBS TAUNTON of Heneage Street, Birmingham in the County of
Warwick, Tube Manufacturer, do hereby declare the nature of the said 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 consists of the improvements hereinafter described in Cornish
steam boilers and such other steam boilers as are not tubulous.
My said invention has for its object to prevent the deposition of earthy matter
in the said boilers by causing the earthy matter in the feed water to be wholly or
mainly precipitated and separated from the water before the water is permitted to
enter the boiler.
vertical.
In carrying my invention into effect I fix a coil of piping in the waste flue
of the boiler furnace or in any other heating chamber the axis of the coil being
The water with which the boiler is to be fed is introduced at the bottom
of the said coil by the feed pump. The water after traversing the said coil and
becoming thereby heated passes through a pipe in the steam space of the boiler.
The said pipe passes from one end of the boiler to the other and returning leaves
the boiler at the end at which it entered. The said pipe is slightly inclined down-
wardsfrom its entrance to its exit. The water by having been exposed to the
heat of the steam in the boiler has acquired the temperature of the steam and
the earthy matter originally dissolved in it is precipitated and is suspended in the
¡water. The heated water with the suspended precipitate is conducted into a col-
lector consisting of two horizontal drums or pipes of large diameter external to the
boiler. These drums or pipes are connected at short intervals by vertical pipes of
large diameter and as the water slowly passes along the upper horizontal pipe the
suspended earthy matter falls down the vertical pipes into the lower horizontal

page_text: pipe from which it can be blown off. Small interceptors are fixed at short intervals
in the upper horizontal pipe by which interceptors the passage of the deposit into
the lower horizontal pipe is promoted. The water in the upper drum thus puri-
fied from earthy matter passes from the said drum into the lower part of the
boiler.
In order to prevent an accumulation of steam in the collector, the top part of
the upper horizontal drum or tube is connected by a pipe with the steam space of
the boiler so that any steam formed or passing into the collector passes by the said
pipe to the steam space of the boiler.
When the water is not passing into the boiler it continues to circulate in the
manner described and thereby becomes more effectually deprived of earthy matter.
Figure 1 of the accompanying Drawing represents in side elevation and Figure 2
in end elevation a Lancashire steam boiler to which my improvements are applied.
The same letters of reference indicate the same parts in both Figures.
a is the coil of piping fixed in the waste flue 6 (or other heating chamber) of the
boiler furnace the axis of the said coil a being by preference vertical as represented.
The feed water of the boiler is introduced at the bottom of the coil a by a feed
pump the feed inlet of the coil being marked c. The upper end of the coil a is
connected by the piped with the horizontal pipe e, e situated in the steam space f
of the boiler, the two branches e, e³ of the pipe being situated nearly on the same
level as seen in the Drawing. The said pipe e, e¹ passes nearly from end to end of
the steain space f, that is to say, the branch e enters the steam space at the rear
end of the boiler and the return branch e³ leaves the steam space at the rear end.
It will be seen by an examination of Figure 1 that both the branches e, e' of the
pipe are slightly inclined downwards. The return branch e³ of the pipe e, eª is
connected by the pipe g with a collector external to the boiler, into which collector
the suspended solid matter in the water is deposited. The construction of the said
collector will be best seen by referring to Figure 1. It consists of the two hori-
zontal drums or large pipes h, i parallel to the sides of the boiler, with the upper
drum h of which drums the pipe g is in communication. The drums h, i are con-
nected at short intervals by vertical pipes k, k and as the heated feed water slowly
passes along the upper horizontal drum h the suspended earthy matter falls down
the vertical pipes k into the lower horizontal drum i from which the said earthy
matter can be blown off. By means of small intercepters, indicated in dotted lines
in Figure 1, fixed in the upper drum h the passage of the deposit into the lower
drum i is promoted. The water in the upper drum h thus purified from earthy
matter passes from the said drum h by the pipe 7 into the lower part of the boiler
(see Figure 2). The pipe 7 from the upper drum is connected by the pipe m with
the bottom of the coil of piping a in the waste flue 6 of the boiler furnace (see
Figure 2). By thus connecting the upper part of the collector with the coil a the
water when not passing into the boiler again circulates through the heating
apparatus and is thereby more effectually deprived of earthy matter. The upper
horizontal drunk of the collector is connected by the pipe p with the steam space
in the boiler. By this means any steam formed on passing into the collector is
conducted to the steam space of the boiler and the accumulation of steam in the
collector is prevented.
From the foregoing description it will be understood that the feed water supplied
to the coil a is heated by its circulation through the said coil and that the heated
water by its passage through the pipe e, e² in the steam space f is further heated
and thereby made to acquire the temperature of the steam, the earthy matter
originally dissolved in the water being precipitated and suspended in the water.
By the passage of the heated water, with the suspended earthy particles, along the
drum of the collector the said suspended earthy particles fall into the lower
drum as herein before described; the water thus purified from earthy matter
entering the boiler from the upper drum by the pipe . In this way the earthy
matter in the feed water is wholly or mainly precipitated and separated from the
water before the water enters the boiler as will be understood by an examination

page_text: of the drawing, where the circulation of the feed water through the heating and
deposit collecting apparatus into the boiler is indicated by arrows and the circula-
tion of the water through the apparatus when the water is not passing into the
boiler is also indicated by arrowa
Although I have represented my improvements in connection with a Lancashire
steam boiler yet I wish it to be understood that the said improvements may also
be applied to steam boilers without internal flues and to steam boilers generally
excepting tubulous boilers.
Having now particularly described and ascertained the nature of my inven-
tion and the manner in which the same is to be performed I declare that what
I claim is,
"
The construction and combination of the parts of the feed water heating and
earthy matter collecting appliances for Cornish and other steam boilers (excepting
tubulous steam boilers) herein before described and 'illustrated in the accom-
panying Drawing; that is to say, appliances for heating the feed water to the tem-
perature of the steam in the boiler, thereby precipitating the earthy matter from
the water, and for collecting the deposited earthy matter before the feed water
enters the boiler substantially as described and illustrated.
Dated this twenty-sixth day of October 1886.
L