Improvements in and relating to the Drawing Off and Condensing of the Vapour from Sugar Pans, and Apparatus therefor.
Year: 1889

page_text: Date of Application, 30th May, 1889
Complete Specification Left, 7th Oct., 1889-Accepted, 16th Nov., 1889
PROVISIONAL SPECIFICATION.
Improvements in and relating to the Drawing Off and Condensing of
the Vapour from Sugar Pans, and Apparatus therefor.
J, JAMES FOSTER, of Baltic Chambers, Sunderland, in the County of Durham,
Engineer, do hereby declare the nature of my invention to be as follows:-
This Invention has reference to and comprises a new or improved construction, or
arrangement and combination of "Save-all" and condenser to be used for the treating
and condensing of the vapour coming from the boiling or evaporating vessels or
Multiple Effets" used in the manufacture of sugar and other like substances, and
which will be more simple and efficient than the appliances heretofore in use for this
$
purpose.
According to my invention the combined "save-all" and condenser would consist
of an outer jacket vessel, preferably of cylindrical shape, having a cover bolted on
above, and bolted to the rim flange of a condensing vessel below, as will herein-
after be described. An inner "save-all" vessel would be placed within this outer
vessel preferably by being overhung on securing bolts or hangers attached to the cover
of the outer vessel, and extending to near the lower part of this vessel. leaving a
short open space between the top of the inner vessel and the cover of the outer vessel
for the vapour to pass over into the outer jacket vessel as will hereinafter be described.
The inner vessel would have a bottom or division near its centre so as to form an
upper "save-all" trap chamber into which the vapour from the evaporating vessel or
vessels or
triple effet" evaporators would flow through a central branch or nozzle
formed in the cover of the outer vessel, and after passing into this "save-all" chamber
would overflow or pass down the jacket annular space formed between this inner
chamber and the outer vessel or case to the condenser bolted below as hereinafter
described. The lower part of the inner vessel would be formed with a chamber
between its lower end and the bottom division of the upper
"save-all vapour
chamber, and have a perforated or slotted hinged bottom secured by a fastening or
clasp. Into the centre of this chamber a transverse water pipe would be led through
both cases, said pipe extending across the inner chamber and perforated with holes
and slots within the chamber for the pressure water to pass through, in a "rose" of
jets and then pass through the perforated bottom and into the space below leading to
the discharge pipe of the condenser. The lower part of the condensing vessel would
consist of a central double conoidal branch or pipe tapering to a narrow throat at
the vertical centre or middle with flanges above and below jointed at its upper end by
its flanges to the flanges of the lower end of the outer jacket vessel and the lower
wide-trumpet or conoidal end of condenser is bolted by a flange to a pipe leading to
an air or vacuum pump, or it might be to a supplementary condenser in connection
therewith. The discharge branch or pipe forming the bottom of the condenser at its
upper wide conoidal part would collect all the water and vapour in a condensed form,
in one solid column passing through the narrowed throat, so as to be led off by the
lower wide or trumpet delivery end, also in a solid column to the pipes leading to the
air pump, or to a condenser or cistern placed in connection therewith, so as to draw
off and condense all the vapour which passes to the "save-all" from the sugar
evaporating pans. The "save-all" chamber of the inner vessel would be fitted with
a pipe at its lower end leading through the cases of both vessels to the outside, where
it would be fitted with a cock so as to periodically draw off any liquid that may
condense or accumulate in the "save-all" chamber. Similar lower and upper pipes
would lead from this "save-all" chamber to a gauge glass placed outside the jacket
chamber to indicate when liquor had accumulated within the "save-all" so as to be
drawn off. And a hand hole or holes with close jointed covers would be fitted at the

page_text: lower part of the outer vapour or condenser case, for periodically getting at the
perforated hinged bottom of the inner case for lowering and cleaning out any debris
that may accumulate therein.
The contracted throat of the condenser, could be fitted with curved vanes or
conductors to give the water a greater velocity and produce a better vacuum in the
vessel to which it is attached.
11
COMPIETE SPECIFICATION.
Improvements in and relating to the Drawing Off and Condensing of
the Vapour from Sugar Pans, and Apparatus therefor.
I, JAMES FOSTER, of Baltic Chambers, Sunderland in the County of Durham,
Engineer, do hereby declare the nature of my invention, and in what manner
the same is to be performed, to be particularly described and ascertained in and
by the following statement in writing, reference being had to the accompanying
Sheet of Drawings, and to the letters and Figures marked thereon, that is to say:-
This Invention has reference to and comprises a new or improved construction, or
arrangement and combination of "save-all" and condenser to be used for the drawing
off or treating and condensing of the vapour coming from the boiling or evaporating
vessels or <
Multiple Effets" used in the manufacture of sugar and other like sub-
stances, and which will be more simple and efficient than the appliances heretofore
in use for this purpose.
And in order that my said invention and the manner of performing or carrying
the same into effect or practice may be properly understood, I have hereunto
appended an explanatory Sheet of Drawings, in which the same reference letters
are used to indicate corresponding parts in all the figures where shown. Figure 1 is
a back external elevation, and Figure 2, a vertical side section, at right angles to
Figure 1, of my new or improved combined "save-all" and condenser.
Figure 3 is
a plan view of Figure 1, half of it with the top cover A¹ removed. And Figure 4 is
a horizontal section taken on the line 1- 1 of Figure 2.
---
Referring to these Drawings:-According to my invention the combined "save-all"
and condenser consists of an outer jacket vessel A preferably of cylindrical shape as
shown, having a cover A¹ bolted on above, and bolted to the rim flange C of a con-
densing discharge vessel C below, as will hereinafter be described. An inner
"save-all" vessel B is formed or fitted within this outer vessel A from near the top
to near the bottom of the vessel A leaving an annular space A2, between it and the
cuter vessel A, or this inner vessel B might be overhung on securing bolts or
hangers attached to the cover A¹ of the outer vessel A, and extending to near the
lower part of this vessel. A short open space A" is left between the top of the
inner vessel B and the cover A¹ of the outer vessel A for the vapour to pass over
into the annular space A² between the vessel B and outer jacket vessel A as will
hereinafter be described. The inner vessel B has a bottom or division B' near the
centre of its vertical length, so as to form an upper "save-all" trap chamber B
above this into which the vapour from the sugar liquor boiling vessels or "triple
effet "
evaporators flows through a central branch A formed in the cover A¹ of
the outer vessel A, and after passing into this save-all chamber B2 would overflow or
pass down the jacket annular space A2 formed between this inner chamber B B2, and
the outer vessel or case A to the condensing chamber C below as hereinafter described.
The lower part of the inner vessel B is formed with a chamber 6 between its lower
end B and the bottom division B₁ of the upper "save-all" vapour chamber B B²,
and has a perforated or slotted bottom & hinged at band secured at its other end
by a fastening or clasp at the lower end B₁. This chamber has an upper compart-
ment 62 formed in it below the division plate B¹ of the vapour chamber B2, and
has a plate 63 perforated with holes or slits to distribute the condensing water over

page_text: "
the sieve which enters by an inlet branch at one side passing through both
vessels A, B, and has a distributing curved vertical plate & in front of the branch bt.
Or instead of forming this upper compartment in the chamber b a transverse
water pipe might be led through both cases A, B, said pipe extending across the
inner chamber band perforated with holes and slots within the chamber for the
condensing pressure water to pass through. The condensing water would pass from
the branch and compartment 6 or the perforated pipe, in a rose or shower of
jets through the perforated bottom b' of the chamber and into the upper part C²
of the condensing chamber C, and there condense all the vapour passing down the
annular space A2 and out through the throat of the discharge trumpet C³.
This lower discharging part of the condensing vessel C consists of a central double
conoidal branch or pipe C³ tapering to a narrow throat at C, with flanges C¹
above and at C below, jointed at its upper ends by its flanges C to the flanges A³
of the lower end of the outer jacket vessel A and the lower wide trumpet or conoidal
end C3 of the condenser is bolted by a flange C to a pipe leading to an
ordinary air or vacuum pump, or it might be to a supplementary condenser in
connection therewith. The discharge branch or pipe C³ forming the bottom of the
condenser, at its upper wide conoidal part would collect all the condensed vapour
and condensing water which would pass in one solid column through the narrowed
throat C and delivery end C³, to the pipes (leading to the air pump, or to a
condenser or cistern placed in connection therewith, so as to draw off and condense
all the vapour which passes to the "save-all" B² from the sugar evaporating pans,
all as indicated by the arrows. The "save-all" chamber B2 of the inner vessel B,
is fitted with a small branch B³, near the bottom B', leading through the cases of
both vessels A, B, to the outside where it would be fitted with a cock, so as to
periodically draw off any liquid that may condense or accumulate in the "save-all
chamber B². Lower and upper branches B would lead from this "save-all"
chamber B2 to the brass cock fittings B of a gauge glass B6 placed outside the
jacket chamber A to indicate the height of the liquor accumulated within the
save-all" vessel B2, so as to know when to draw it off. And a hand hole or holes
with close jointed covers would be fitted at A* at the lower part of the outer vapour
or condenser case B, for periodically getting at the perforated hinged bottom b¹ of
the inner water distributing chamber for lowering and cleaning out any debris
that may accumulate therein.
"
The contracted throat C of the discharge tube C³ of the condenser C could be
fitted or formed with curved or spiral vanes or conductors to give the water a spiral
or vortex action downwards and produce a better vacuum in the vessel A, B, and C,
to which it is attached.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is.
First. A combined "save-all" and condenser, consisting of an outer jacket vessel A,
and an inner vessel B with a "save-all" vapour chamber B2, and water distributing
chamber b, b, 62, and with a combining and discharge condenser C to C³ below,
constructed substantially as and for the purposes herein described in reference to
and shown in the accompanying Drawings.
Second. In a combined "save-all" and condenser, the use of an inner "save-all "
vapour vessel B B2, with water distributor 6 62 in combination with an outer con-
densing vessel A, C, and discharge trumpet C", C3, substantially as and for the
purposes herein described, in reference to and shown in the accompanying Drawings.
Dated the 5th October 1889.
W. R. M. THOMSON & Co.,
96, Buchanan Street, Glasgow, Agents.