Improvements in Apparatus for Heating, or Heating, Softening, and Purifying Liquids, and for Condensing, applicable as a Feed Water Heater, Feed Water Heater Softener and Purifier, Evaporator, or Condenser.
Year: 1895

page_text: Date of Application, 14th Oct., 1895
Complete Specification Left, 16th July, 1896-Accepted, 26'h Sept., 1896
PROVISIONAL SPECIFICATION.
Improvements in Apparatus for Heating, or Heating, Softening, and
Purifying Liquids, and for Condensing, applicable as a Feed
Water Heater, Feed Water Heater Softener and Purifier,
Evaporator, or Condenser.
We, FRANCIS HERBERT TYACKE, of Broad Street Hou-e, Old Broa! Street,
in the City of London, Civil Engineer, and RICHARD SYDNEY BROWNLOW, Of
Abbey Hey Works, Gorton, Manchester, in the County of Lancaster, Engineer,
do hereby declare the nature of this invention to be as follows :—
This invention has reference to improvements in apparatus for heating, or
heating softening and purifying liquids, or for condensing, applicable as a feel water
henter, a feed water heater softener and purifier, evaporator, or condenser, and it
his for its object to provide in such apparatus a very large amount of heating or
cooling surface, as the case may be, in a comparatively small area, and in the
case of softening and purifying apparatus, to facilitate the softening and puritying
process.
The apparatus is of the class in which steam used for heating and evaporating
purposes, or steam that is to be condensed, as the case may be, is caused to pass
through a series of pipes located within a vessel provided with inlet and outlet for
the liquid that is to be heated or that is to serve for abstracting the heat from
steam to be condensed, as the case may be. In such apparatus according to this
invention there is or are provide one or more heating or cooling devices com-
prising or each comprising two steam chambers or boxes arranged parallel and
near together and connected by bent pipes arranged in a horizontal or nerly
barizantal plane ut planes and so that water of condensation can readily drain
away therefrom.
The bent pipes are preferably bent to a circular form as seen in plan, those
comprising a group being arranged concentrically, and the steam chambers or
boxes being arranged between their adjacent ends. When the heating device has
only one group of bent tubes, the steam chambers or boxes may be in the form
of straight horizontal pipes.
In another arrangement, the heating or cooling device, or each of them if two
or more be used, comprises two steam chambers or boxes from which, radiate a
number of tubes cach doubled or bent back upon itself and connected by its ends
to the two steam chambers or boxes, the several tubes being arranged after the
manner of the spokes of a wheel and as closely as convenient to each other. The
steam chambers or boxes are preferably arranged one above the other with
the radial tubes extending nearly to the wall of the containing vessel.
In each case, the steam chambers or boxes with their connecting pipes may be
variously arranged and connected together so that there is a constant circulation
of steam through the pipes, but they are preferably arranged in groups of two
or three together, the steam being continuously admitted to the first chamber of
each group, and when it bas parted with a portion of its heat and is nearing the
point of condensation, being taken away by an exhaust pipe from the second or
last chamber of the group.
Conveniently, a single steam inlet pipe with a branch to the first chamber of
each group, and a single steam exhaust or exit pipe with a branch from the last
chamber of each group may be used, but many variations may be made in the
details of the arrangement so long as two or more lateral steam chambers or boxes

page_text: in the one case, and contact steam chambers or boxes in the other case, aro
connected together by a series of bent steam pipes arranged in the same plane,
or by doubled steam pipes radiating like the spokes of a wheel as above described.
In some applications of our heating devices, the liquid to be heated may be
passed through the bent tubes and the heating medium, which may then be steam
or lint gases from a furnace, be brought in contact with the external surface of the
tubes.
In applying such heating devices to water purifying and softening apparatus, we
prefer to use apparatus of the kind described in the Specification of Letters Patent
No. 9814 of 1894 granted to one of us riz, the said Francis Herbert Tyacke, and
to George Glass Hooper. In such apparatus according to this invention, we
arrange one or more heating devices of the kind hereinbefore described, outside of
and preferably concentrical with but below the vertical water mixing tube and
above the lower conical receptacle described in that specification. In the case of
the eating device first herein described, the steam chambers or luxes of such
device are carried by the containing vessel and connected with steam supply an
water exit pipes arranged preferably external to such vessel, and to the spindle
currying the screw-like blade arranged within the said mixing tube and which is
adapted to be rotated when necessary, is or are secured one or more brushes,
scrapers or like cleaning devices, adapted, when rotated or partly rotated, to clean
the exterior of the bent tubes of the beating device. When the second form of
heating device hereinhefore described is used, its central steam chambers or boxes
are or may be made of annular form and be fixed to the aforesaid spindle, which
is arrange preferably centrally within the containing vessel, and is adapted to be
rotated, when necessary, so Rs to bring the several heating tubes opposite a
normally closed opening in the side of the vessel through which access can be
gained to the tubes for cleaning or other purpose. The steam supply and exhaust
pipes may, in this case, he led through the sand mixing tube to the heating device,
but they may be otherwise arranged if desired. Or the said second form of heating
device may be fixed within the containing vessel, and the rotary spindie he provided
with means for cleaning the external surfaces of the heating tubes. In this case
it will not be necessary to empty the vessel preparatory to cleaning the tubes, as
will be necessary in the other ense.
As will be obvious heating devices of the kind hereinbofore described, can be
applied to water softening and purifying apparatus of various constructions.
Dated this 16th day of October 1895.
W. LLOYD WISE,
46 Lincoln's lun Fields, London, W.C., Chartered Patent Agent,
COMPLETE SPECIFICATION.
Improvements in Apparatus for Heating, or Hoating, Softening, and
Purifying Liquids, and for Condensing, applicable as a Feod
Water Heater, Feed Water Heater Softener and Purifier,
Evaporator, or Condenser.
We, FRANCIS HERBERT TYACKE, of Broad Street House, Old Broad Street,
in the City of London, Civil Engineer, and RICHARD SYDNEY BROWNLOW, of
Abbey Hey Works, Gorton, Manchester, in the County of Lancaster, Engineer, do
hereby declare the nature of this invention and in what manner the same is to bo
performed to be particularly described and ascertained in and by the following
statement
This invention has reference to improvements in apparatus for heating, or

page_text: heating softening and purifying liquids, or for condensing, applicable as a feed
water heater, a leed water heater softener and purifier, evaporator, or condenser,
and it has for its object to provide in such apparatus a very large amount of heating
or cooling surface, as the case may be, in a comparatively small area, and in the
case of softening and purifying apparatus, to facilitate the softeuing and purifying
process.
The apparatus is of the class in which steam is used for heating and evaporating
purposes, or steam that is to be condensed, as the case may be, is caused to pass
through a series of pipes located within a vessel provided with inlet and outlet for
the liquid that is to be heated or that is to serve for abstracting the heat from
steam to be condeused, as the case may he.
In the accompanying drawings Fig. 1 is a vertical section, and Fig. 2 a plan
shewing part of an apparatus of the kind referred to provided with one construction
of heating or cooling device according to this invention.
The heating or cooling device in this case comprises two steam chambers or
boxes 1, 2 (hereinafter called boxes) place near together and connected by bent
pipes 3 which may be arranged in a horizontal plane, or, as shown, in a nearly
horizontal plane and so that water of condensation can readily drain away
therefrom. In the example illustrated, the bent pipes 3 are each built up of three
lengths of pipe connected by junction pieces 33, the several lengths being preferably
bent to a circular form as seen in plan, and the several pipes comprising the
group being arranged concentrically with each other, and with the steam boxes I
and 2 arranged between their adjacent ends. The adjacent junction pieces 3ª are
connected together so that water of condensation can drain from the upper to
the lower pipes 3 and thence pass to the box 2, thus keeping the upper pipe, r
those nearest the centre of the vessel 4, as free as possible of water of condensation.
The boxes and 2 extend through the wall of the vessel 4 by which they and the
pipes 3 are, in conjunction with angle iron supports 4ª, carried, and are provide
with pipes 5 and 6 respectively for inlet of steam and exit of water of
condensation.
Figs. 3 and are similar views to Figs. 1 and 2 respectively, showing another
construction of heating or cooling device according to this invention. In this
case the device comprises two central steam boxes 1 2 from which radiate a
number of tubes 3* each doubled or bent back upon itself and connected by its ends
to the two boxes, the several tubes being arranged after the manner of the spokes
of a wheel and as closely as convenient to each other. The steam boxes are
preferably arranged one above the other, as shown, with the radial tubes extending
nearly to the wall of the containing vessel 4 within which the device is fixed in any
convenient manner.
As will be obvious the vessel 4 may be provided with two or more devices of
either of the kinds described, arranged one above the other according to the extent
of heating or cooling surface desired, the steam boxes of the said devices being in
all cases so arranged and connected together that there will be a constant circulation
of steam through the connecting pipes 3 3.
In some applications of our heating devices, the liquid to be heated may be passed
through the bent tubes, the heating medium, which may then be steam or hot
gases from a furnace, be brought in contact with the external surface of the
tubes.
In applying such heating devices to water purifying and softening apparatus, we
prefer to use apparatus of the kind described in the Specification of Letters Patent
No. 9814 of 1894, granted to one of us, cis, the said Francis Herbert Tyacke, and
to George Glass Hooper. Fig. 5 is a sectional elevation of such an apparatus
provided with a heating device of the kind first herein before described. This
device, represented collectively by the reference figure 7, is arranged outside of
and preferably concentrical with, but below the vertical water mixing tube 8 and
above the lower conical receptacle 9, which parts are similar to the correspondingly
nained parts in the said former specification. The steam boxes of the said heating

page_text: device are carried by the containing vessel 4 and support 4" (Fig. 2) and connertel
with steam supply and water exit pipes 5 and 6 respectively arrangel preferably
external to such vessel as hereinbefore described. To the spindle 10 carrying the
screw-like blade 11 arranged within the said mixing tube 8, and which is adapted to
be rotated when necessary from the exterior of the apparatus by suitable means
such as the bevel wheels 12, shaft 13, and crank handle 14, are secured one or
more brushes, scrapers, or like cleaning devices, adapted, when rotated or partly
rotated, to clean the exterior of the bent tubes 3 of the heating device of the
mud-like matter deposited upon them during the purifying and heating process,
In the example shown there are pairs of brushes 15, the brushes in each pair being
arranged the one above and the other below the pipes. The spindle 10, which is
provided with a deflector 16, as before, is carried by a fotstop bearing 17.
When the second form of heating device hereinbefore described with refertuce
to Figs. 3 and is used, it's central steam boxes 1", 2" may be made of annular form
and be fixed, as shown in Fig. 6, to the aforesai spialle 10, which is arrangel
preferably centrally, within the containing vessel 4 and is a laptet to be rotated
when necessary, so as to bring the several heating tubes 3" of the devies opposite.
a normally closed opening 4 in the side of the vessel through which access can be
gained to the said tubes for cleaning or other purpose. The steam supply and
exhaust pipes and 6 may, in this case, by del through the said mixing tube N to
the beating device, but they may be otherwise arranged if desir !. In the
example shown, the pipes 5 and 6 are fixed at opposite sides of the spin le 10
and are fixed at their upper end to a cylindrical vessel 16 that is mounted to
rotate in a fluid tight manner in a fixed casing 17 and is formed with t vo separate
chambers 18 and 19 which are respectively in connection with the upper ends of the
pipes 5 and 6 and through passages in the casing 17 with fixel s ply and exit
pipes 3 and 6. 20 is a handle by which the spin lle 10 with attached parts can be
rotated when necessary. Or the form of heating device now being described may
be fixed within the containing vessel 4, and the rotary spindle 10 be provided with
means, such as the rotary brushes 15 shown in Fig. 5, for cleaning, as far as
possible, the external surfaces of the heating tubes. In this case it will not be
necessary to empty the vessel 4 preparatory to cleaning the tubes, as will be
necessary in the case where the heating device is arranged to be rotated opposite
an opening 4* in the vessel 4.
As will be obvious heating devices of the kin 1 hereinbefore describe 1, can with
advantage be applied to water softening and purifying apparatus of various
constructions for the purpose of facilitating the softening and purifying process.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed we declare that what wo
claim is
1. In apparatus of the kind herein referred to, a heating or cooling device
constructed substantially as hereinbefore described with reference to an shown
in Figs. 1 and 2 of the accompanying drawings for the purpose specified.
2. In apparatus of the kind herein referred to, a heating or cooling device coo-
structed substantially as hereinbefore described with reference to and shown in
Figs. 3 and 4 of the accompanying drawings for the purpose specified.
3. Water purifying and softening apparatus provided with heating devices
constructed arranged and operating substantially as hereinbefore described with
reference respectively to and shown in Fig. 5 and in Fig. 6 of the drawings
Annexed.
13.11
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