AN IMPROVED SKIPPING DIPPER OR VESSEL FOR REMOVING SUGAR AND OTHER LIQUIDS FROM BOILING PANS
Year: 1861

page_text: LETTERS PATENT to Richard Sydney Lambert, of White Hall, Clevedon,
in the County of Somerset, for the Invention of "AN IMPROVED SKIPPING
DIPPER OR VESSEL FOR REMOVING SUGAR AND OTHER LIQUIDS FROM BOILING
PANS."
Sealed the 4th February 1862, and dated the 20th August 1861.
PROVISIONAL SPECIFICATION left by the said Richard Sydney Lambert
at the Office of the Commissioners of Patents, with his Petition, on
the 20th August 1861.
I, RICHARD SYDNEY LAMBERT, of White Hall, Clevedon, in the County of
Somerset, do hereby declare the nature of the Invention for "AN IMPROVED
SKIPPING DIPPER' OR VESSEL FOR REMOVING SUGAR AND OTHER LIQUIDS FROM
BOILING PANS," to be as follows:-
Vessels designated "skipping or dipping teaches," have long been used for
the withdrawal in large quantities of the contents of open sugar pans and
other vessels suspended over and in contact with naked fires, under conditions
which do not admit of the use of drawing-off cocks, but these original vessels
are constructed without any security against the removal so great a proportion
of the heated contents of the boiling pans, that the portions left behind are so
greatly diminished on the repetition of every operation of dipping up that they
are subjected to the destructive action of excessive and uncontrollable heat,

page_text: and from this cause are materially injured. This injury is again increased
through the circumstance that until the original skipping or dipping teache is
lifted wholly out of the pans, being thereby emptied, there has been no means
of refilling them, and so this operation of lifting out the original dipper
necessarily prolongs the exposure of the diminished residuum to further
destruction from inordinate heat.
The above describes the defects which it is desirable to remove or avoid.
The nature of the Invention consists in the construction of a dipper
provided,―
Firstly, with external ribs or guards, so applied as to prevent the contact of
the exterior surfaces of the vessel with the interior surfaces of the pans from
which it is intended to dip up the contents, whereby the heated surfaces of
these latter, even whilst the improved dipper is actually within them, charged
with a portion of their contents ready for removal, remain covered with liquid
matter in quantity always sufficient to prevent injury from charring or
scorching.
Secondly, with a dome or elevated cover, which enables the operator to
"change over" or take into the pans in action, and before the improved dipper
is in any degree lifted out or removed therefrom, sufficient liquid to replace
that taken into the improved dipper for removal, so that when this vessel and
its charge are actually lifted away the pan is found to be already replenished.
By these means all possibility of injury from the destructive effects of large
overheated surfaces acting on small quantities of highly inspissated substances
is wholly avoided.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Richard Sydney Lambert in the Great Seal Patent Office
on the 20th February 1862.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, RICHARD
SYDNEY LAMBERT, of White Hall, Clevedon, in the County of Somerset, send
greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twentieth day of August, in the year of our Lord One
thousand eight hundred and sixty-one, in the twenty-fifth year of Her reign,
did, for Herself, Her heirs and successors, give and grant unto me, the said
Richard Sydney Lambert, Her special licence that I, the said Richard
Sydney Lambert, my executors, administrators, and assigns, or such others

page_text: as I, the said Richard Sydney Lambert, my executors, administrators, and
assigns, should at any time agree with, and no others,. from time to time
and at all times thereafter during the term therein expressed, should and
lawfully might make, use, exercise, and vend, within the United Kingdom
5. of Great Britain and Ireland, the Channel Islands, and Isle of Man, an
Invention for "AN IMPROVED SKIPPING DIPPER' OR VESSEL FOR REMOVING SUGAR
AND OTHER LIQUIDS FROM BOILING PANS," upon the condition (amongst others) that
I, the said Richard Sydney Lambert, my executors or administrators, by an
instrument in writing under my, or their, or one of their hands and seals, should
particularly describe and ascertain the nature of the said Invention, and in
what manner the same was to be performed, and cause the same to be filed in
the Great Seal Patent Office within six calendar months next and imme-
diately after the date of the said Letters Patent.
NOW KNOW YE, that I, the said Richard Sydney Lambert, 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 thereof, that is to say:-
Vessels designated "skipping or dipping teaches," have long been used for
the withdrawal in large quantities of the contents of open sugar pans and
other vessels suspended over and in contact with naked fires, under conditions
which do not admit of the use of drawing-off cocks, but these original vessels
are constructed without any security against the removal of so great a pro-
portion of the heated contents of the boiling pans, that the portions left behind
are so greatly diminished on the repetition of every operation of dipping up
that they are subjected to the destructive action of excessive and uncontrollable
heat, and from this cause are materially injured. This injury is again increased
through the circumstance that until the original skipping or dipping teache is
lifted wholly out of the pans, being thereby emptied, there has been no means
of refilling them, and so this operation of lifting out the original dipper
necessarily prolongs the exposure of the diminished residuum to further
destruction from inordinate heat.
The above describes the defects which it is desirable to remove or avoid.
The nature of the Invention consists in the construction of a dipper-
provided,―
-
Firstly, with external ribs or guards so applied as to prevent the contact of
the exterior surfaces of the vessel with the interior surfaces of the pans from..
which it is intended to dip up the contents, whereby the heated surfaces of
these latter, even whilst the improved dipper is actually within them, charged.
with a portion of their contents ready for removal, remain covered with liquid-

page_text: matter, in quantity always sulhcient to prevent injury from charring on
scorching.
Secondly, with a cover (by preference a dome or elevated cover) which
enables the operator to "charge over" or take into the pans in action, and
before the improved dipper is in any degree lifted out or removed therefrom,
sufficient liquid to replace that taken into the improved dipper for removal, so
that when this vessel and its charge are actually lifted away the pan is found
to be already replenished. By these means all possibility of injury from the
destructive effects of large overheated surfaces acting on small quantities of
highly inspissated substances is wholly avoided.
Having thus stated the nature of my. Invention, I will proceed more fully
to describe the manner of performing the same.
The lower part of the skipping dipper or vessel, by which the contents of a
teache or boiling pan is emptied of the greater part of its contents, is like in
form but somewhat smaller than the interior of the teache or boiling pan, into
which, as heretofore, the dipping vessel descends, in order that the fluid contents
of the teache or boiling pan may rise up through the bottom of the skipping
dipper or vessel where, as heretofore, there is a valve, which is closed when
the fluid contents of the teache or boiling pan has for the most part passed
into the dipping vessel. To the outside of the lower part of the skipping or
dipping vessel are applied ribs or other formed distance pieces or projections,
which prevent the dipping vessel coming in contact with the interior of the
teache or boiling pan, except by the distance pieces, so that there is a quantity
of the fluid contents remaining in the teache or boiling pan when the skipping
or dipping vessel has descended to its lowest position, which tends to prevent
the otherwise prejudicial effect of the heat of the teache or boiling pan, more
particularly when, as heretofore, the dipping or skipping vessel is removed or
raised out of the teache or boiling pan before a fresh charge was supplied
thereto, but according to my Invention I not only so form the skipping or
dipping vessel as above explained as to insure there being a space between its
exterior and the interior of the teache or boiling pan, but I also so construct
the dipping or skipping vessel that a fresh charge may be introduced into the
upper part of the teache or boiling pan before the dipping or skipping vessel is
raised out of the teache or boiling pan, and this I do by raising the upper part
of the skipping or dipping vessel by a cover (by preference a cone or dome-
shaped cover) or inclosure, simply leaving an opening at the upper part for
the passage of the valve rod.. By this arrangement, when the dipping or
skipping vessel has been lowered into the teache or boiling pan, and the
valve has been closed, a fresh supply is run into the teache or boiling pan,

page_text: after which the dipping or skipping vessel is raised with its contents out of the
teache or boiling pan, the fresh supply descending into and filling the lower
part of the teache or boiling pan, as the dipping or skipping vessel is raised, so
that the interior surface of the teache or boiling pan where it is most heated
will not at any time be uncovered, on the contrary, there will at all times be
sufficient quantity of the fluid in the teache or boiling pan to cover the heated
parts.
In witness whereof, I, the said Richard Sydney Lambert, have hereunto
set my hand and seal. this Fifteenth day of February. in the year of
R. SYDNEY LAMBERT. (L.S.)