AN IMPROVED PROCESS FOR THE MANUFACTURE OF VEGETABLE OILS
Year: 1883

page_text: LETTERS PATENT to Conrad Frederick Stollmeyer temporarily of Chancery
Lane in the County of Middlesex for an Invention of "AN IMPROVED
PROCESS FOR THE MANUFACTURE OF VEGETABLE OILS"
PROVISIONAL SPECIFICATION left by the said Conrad Frederick Stollmeyer
at the Office of the Commissioners of Patents on the 8th May 1883.
CONRAD FREDERICK STOLLMEYER temporarily of Chancery Lane in the County
of Middlesex "AN IMPROVED PROCESS FOR THE MANUFACTURE OF VEGETABLE
OILS."
The present mode of extracting oil from oleaginous substances is tedious and
expensive, and entails considerable waste. It is either done by crushing, grinding;
or fermenting the substances in order to break the cells which hold the oil, and
expensive machinery and much time and labour is required to accomplish the
desired result.
Now the object of the present invention is to effect the breaking or bursting of
the oil cells in a more simple and efficient manner than heretofore, and without
the necessity for complicated and expensive machinery.
i
My improved process consists in boiling oleaginous vegetable substances under a
pressure greater than that of the atmosphere, in closed chambers.
I have found that the following mode of procedure is effective in attaining the
object of my Invention. Into a steam boiler or other suitable vessel capable of
resisting a pressure of 120 pounds to the square inch, the nuts or other oleaginous
vegetables are placed, and water is added to a convenient height. The boiling is
then commenced, and when the pressure has reached to 75 pounds per square inch,
the fire is moderated, so as to keep the pressure as near as possible to that point,
and the boiling is continued for about 12 hours. By this time all the cells of the
nuts or other oleaginous substances are broken, and the mass is reduced to a pulp,
which is run off into a tank to settle. The free oil will float on top, and is drawn
off, while the pulp settles on the bottom of the tank, from whence it is taken to
the press for the purpose of getting what oil may have remained in it. The oil
'

page_text: may be filtered through pulverised charcoal in order to free it from impurities, or
treated in any other convenient manner.
By the use of my invention, I obtain a greater yield of oil than under the old
method of extracting the oil, and also a purer and a better article, while the oil-
meal or cake obtained will be more suitable for cattle feeding, as, partaking of
the nature of cooked food, it will be more easily digested.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Conrad Frederick Stollmeyer in the Great Seal Patent Office
on the 8th November 1883.
CONRAD FREDERICK STOLLMEYER of Trinidad British West Indies but
temporarily of Chancery Lane in the County of Middlesex "AN IMPROVED
PROCESS FOR THE MANUFACTURE OF VEGETABLE OILS"
The present mode of extracting oil from oleaginous vegetable substances is
tedious and expensive and entails considerable waste. The oleaginous substances
are crushed ground or fermented in order to break the cells which hold the oil
previous to submitting the substances to pressure to express the oil, and expensive
machinery and much time and labour are required to accomplish this desired
result.
Now the object of the present invention is to effect the breaking or bursting of
the oil cells in a more simple and efficient manner than heretofore, and without
the necessity for complicated and expensive machinery
My improved process consists in boiling oleaginous vegetable substances under a
pressure greater than that of the atinosphere, in closed chambers.
I have found that the following mode of procedure is effective in attaining the
object of my invention. Into a steam boiler or other suitable vessel capable of
resisting a pressure of One hundred and twenty pounds to the square inch, the
seeds or other oleaginous vegetable substances are placed, and water is added to a
convenient height. The boiling is then commenced and when the pressure has
reached seventy five pounds per square inch the fire is moderated so as to keep
the pressure as near as possible to that point and the boiling is continued for about
twelve hours.
By this time the oil cells of the seeds or other oleaginous substances will be
broken or softened, and the mass is reduced to a pulp which is run off into a tank
to settle. The oil which has been freed will float on the top, and will be drawn
off; while the solid substances will settle on the bottom of the tank these solid
substances will then be submitted to pressure in any convenient manner for the
purpose of getting out what oil may still remain therein. The oil obtained by my
improved process may be filtered through pulverized charcoal in order to free it
from impurities or be treated in any other convenient manner

page_text: By the use of my invention I obtain a greater yield of oil than under the old
method of extracting the oil, and also a purer and a better article, while the oil
meal or cake obtained, should the percentage of oil left in the cake be the same
as in oil meal obtained in the ordinary way, will be more suitable for cattle
feeding; as partaking of the nature of a cooked food it will be more easily.
digested.
I may here remark that I have found by experience the best results in every
respect are obtained by boiling at the pressure and for the time above stated, but
I do not wish to confine myself to such pressure and time as circumstances may
require certain modifications in that respect and similar results though not the
best may be obtained by boiling at a reduced pressure for a longer time.
Having now described the nature of my Invention for "Improvements in the
manufacture of vegetable oils," and explained the manner of carrying the same
into effect; I claim :-
The process substantially as herein described for extracting oil from oleaginous
vegetable substances, whereby a greater yield of oil and a purer and better article
is obtained than heretofore.
In witness whereof I the said Conrad Frederick Stollmeyer have hereunto set
my hand and seal the 17th day of October in the year of our Lord One thousand
eight hundred and eighty three.
CONRAD F STOLLMEYER. (LS.)