IMPROVED APPARATUS FOR EVAPORATING SACCHARINE JUICES
Year: 1877

page_text: LETTERS PATENT to Alexander Melville Clark, of 53, Chancery Lane, in the
County of Middlesex, Patent Agent. for the Invention of "IMPROVED
APPARATUS FOR EVAPORATING SACCHARINE JUICES" A communication from
abroad by José Guardiola, of Chocolí, in the Republic of Guatemala, Cential
America
Scaled the 16th March 1877, and dated the 25th January 1877.
COMPLETE SPECIFICATION filed by the said Alexander Melville Clark at the
Office of the Commissioners of Patents on the 25th January 1877
"
AI EXANDER MELVILLE CI ARK, of 53, Chancery Lane, in the County of Middlesex,
Patent Agent
"IMPROVED APPARATUS 10R EVAPORATING SACCHARINEL JUICES
A communication from abroad by José Guardiola, of Chocolá, in the Republic of
Guatemala, Central America
This Invention relates to a new suga evaporating apparatus, and to new means
for rapidly and effectually evaporating sugai juice
It consists more particularly
na novel construction of series of connected oblong channels, aranged in suc-
cessive steps one above the other, in which the syrup or juice is gradually evaporated
and conveyed to tanks for further treatment, and wherein it is also skimined by
overflowing from one channel of the evaporator to another
The Invention also consists in a novel combination of one or more such selles
of channels with a series of tanks for the further effectual treatment of the
saccharine matter
Figure 1 of the accompanying Drawings is a plan view of the improved
evaporator, and Figure 2 is a transverse section of the same taken on the line x, x,
Figure 1
Similar letters of reference indicate corresponding parts in the two Figures
The
A is an oblong evaporator consisting of a series of connected channels or a
continuous channel B' arranged in successive steps a¹, a', the central one being the
highest, and each successive step being inclined downwards towards the next below,
and the last in the series being inclined toward the discharge spout c¹
channel B thoughout its entire length is made in shape of a vertical ledge d³,
which has the outwardly projecting horizontal flange e¹ and an upwardly inclined
lip If any of the juice that Hows downward along the channel B₁ boils over
D71

page_text: it is thrown on the flange e¹ which is perforated, and is thereby skımıned so that
the impure parts will einain on the surface of the said perforated flange Along
the lower portions of the channel B¹ the flange is not perforated, so that the juice
cannot be laterally discharged from the lower parts of the said channel This
oblong evaporator is set in brickwork and is provided with a furnace suitably
alanged for evaporating purposes
The discharge spout of the oblong evaporator is arranged to discharge into
either compartiment of a vat gl, which is divided longitudinally through its centie
and provided with gates on cocks /¹ The vat is placed at the front or rear of the
fire aich, so that a portion of its under sui face is acted upon by the fire
Defecating tanks nie placed upon the arch remote from the fire, and at such a
level as will permit of running their contents into the evaporator A through a
suitably aanged pipe
The operation is substantially as follows -The cane, beet, or sorghum juice
passes from a mill to the defecating vats when it is treated by the usual known
processes for defecating sacchaimme juices, the process being carried on in alternation
in the vats, and as soon as the juice arrives at the proper state it is permitted to
flow through a pipe into the central and highest part of the evaporator, when it
flows through the channels of the evaporator until discharged through the spout e¹
into one of the compartments of the vat where it is subjected to a further
heating, and is finally drawn off through one of the gates h¹ while the spout is
changed so as to direct the juice into the empty compartment of the said vat g¹
If an oblong evaporator having a channel of considerable length is used the
inclination of the channel should be increased, say, every fifty feet, as the liquid
gradually becomes thicker and requnes more pitch to flow without buning
A great amount of water contained in the juice is diven off in going through
the evaporator, and the stream of Juice or syrup coming out of it is comparatively
pure A boy with a lag or brush can clean the strainer or skimmer flange, no other
attendance being requisite It will take but a few minutes for the juice to pass
through a channel and be properly evaporated The yield will therefore he
greater and the quality of produce better than many other apparatus for the same
purpose
Having described the nature of the said Invention and the manner of performing
the same, I declare that what I clann as new and desne to secure by Letters
Patent is,
Fust The oblong evaporator containing the channel B' and the perforated
skimming flanges of along the said channel, substantially as herein shown and
lescibed
Second The combination of an oblong evaporator with the comparted vat y',
substantially as herein shown and described
Thud The comparted vat g¹ for receiving the liquid from the evaporator, sub-
stantially as herein shown and described
Fourth The movable spout c¹ for discharging the juice from the evaporator into
either of the compartiments of the vat y¹, substantially as herein shown and
described
In witness whereof, I, the said Alexander Melville Clark, have hereunto set
my hand and seal, this Twenty-fifth day of January, in the year of our
Lord One thousand eight hundied and seventy-seven
A M CLARK (LS)