Improved Apparatus for Washing and Drying Cocoa and other Substances.
Year: 1890

page_text: Date of Application, 16th Sept., 1890
Complete Specification Left, 16th June, 1891-Accepted, 18th July, 1891
PROVISIONAL SPECIFICATION.
Improved Apparatus for Washing and Drying Cocoa and other
Substances.
1, MICHEL LIONARONS, of Paramaribo, Surinam, Engineer do hereby declare
the nature of this invention to be as follows:-
This invention relates to an improved apparatus for washing and drying, and is
practically applicable for washing and drying cocoa. The object is to provide a
more efficient system for washing and drying cocoa than is at present in use.
The apparatus consists of two concentric cylindrical vessels having a shaft
carrying vanes. This shaft passes out through stuffing-boxes in the ends of the
two cylinders, and is driven by a steam engine so as to cause the vanes to revolve.
Steam for heating the interior of the inner cylinder is admitted into the space
between the two cylinders. Water can be supplied to the inner cylinder for
washing the cocoa by means of a pump, and a fan is used for driving fresh dry air
into the inner cylinder for drying the cocoa. Proper exits for the water and air are
provided, and also for letting out the condensed steam from the space between the
two cylinders.
The cocoa is supplied by a man-hole at the top of the apparatus. The revolution
When the
of the vanes keeps the cocoa in motion while being washed and dried.
operation is completed the cocoa is removed by means of a door provided in the
bottom of the apparatus.
Dated this 15th day of September 1890.
BOTTOMLEY & LIDDLE,
154, St. Vincent Street, Glasgow, Applicant's Agents.
COMPLETE SPECIFICATION.
Improved Apparatus for Washing and Drying Cocoa and other
Substances.
I, MICHEL LIONARONS of Paramaribo, Surinam, Engineer do hereby declare
the nature of this invention and in what manner the same is to be performed, to
be particularly described and ascertained in and by the following statement :-
My invention relates to an improved apparatus for washing and drying, and is
practically applicable for washing and drying cocoa, coffee, and many other beans.
The object is to provide a more efficient system for washing and drying cocoa than
is at present in use.
The apparatus consists of two concentric cylindrical vessels having a shaft
carrying vanes. This shaft passes out through stuffing boxes in the ends of the
two cylinders, and is driven by a steam engine-so as to cause the vanes to revolve.
Steam for heating the interior of the inner cylinder admitted into the space
between the two cylinders. Water can be supplied to the inner cylinder for
washing the cocoa by means of a pump, and a fan is used for driving fresh dry air
into the inner cylinder for drying the cocoa. Proper exits for the water and air
are provided, and also for letting out the condensed steam from the space between
the two cylinders.
The cocoa is supplied by a man-hole at the top of the apparatus. The revolution
of the vanes keeps the cocoa in motion while being washed and dried. When the
operation is completed the cocoa is removed by means of a door provided in the
bottom of the apparatus.
In order that my invention may be properly understood and readily carried into

page_text: effect I have hereunto appended three explanatory sheets of drawings in the severa
figures of which corresponding parts are marked with the same letters of reference
Figure 1 is an elevation of the apparatus.
Figure 2 is a longitudinal section.
Figure 3 is a transverse section taken through the line ab Figure 1.
A A' are the cylindrical vessels, which rest on seats or standards X X'; A being
the outer vessel into which the steam is admitted, and A' the inner vessel into
which the cocoa to be washed and dried is placed; and B is the shaft for carrying
the vanes C. This shaft passes through stuffing boxes D in the ends of the
vessels A, and it is driven by belting from the main driving shaft of a steam engine
not shewn on the drawings, so as to cause the vanes C to revolve. The interior of
the inner vessel is heated by means of steam passing from the ordinary steam boiler
through the pipe E into the outer vessel, and this pipe E is provided with a valve F,
for regulating the supply of steam, as shewn in Figure 1.
cocoa is supplied to the inner vessel by means of a pump communicating with a
Water for washing the
branch pipe R connected to the pipe G ; and cold air for drying the cocoa is driven
into the inner vessel through the pipe G by means of a fan H, this pipe G being
provided with holes or perforations , so that the cold air will be spread all over
the inner vessel.
I is a valve for the escape of sour air; J is a safety valve for the outer vessel;
K, K are cocks for letting out the condensed steam from the outer vessel; L is a
cock for letting out the water from the inner vessel, which is provided with a sieve S
to prevent the cocoa from coming into the cock; M is a steam gauge; N is a
thermometer for indicating the temperature in the inner vessel; P is the manhole
on top of apparatus through which the cocoa is passed into the inner vessel, the lid
of which I prefer to be of glass in order to shew the temperature indicated by
thermometer; and Q is the exit or door for the cocoa after it has been washed
and dried.
The operation of the apparatus is as follows:--The cocoa is placed into the inner
vessel A through the manhole P, and it is kept in motion while being washed and
dried by the revolution of the vanes C on the shaft B, which is operated by means
of a steam engine as described. When the cocoa is being washed water is supplied
to the inner vessel by means of a pump as hereinbefore described, and when the
washing is completed, the water is drawn off' by means of a cock L. Steam is then
admitted into the outer vessel A., and cold air is distributed throughout the inner
vessel as described, until the cocoa is dried, when it is removed by the door or
exit Q, and the sour air is drawn off by the cock I, when the apparatus is ready for
another charge of cocoa to be washed and dried.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :--
The apparatus for washing and drying cocoa and other substances, substantially
as described and shewn on the accompanying sheets of drawings.
Dated this 15th day of June 1891.
BOTTOMLEY & LIDDLE.
154, St. Vincent Street, Glasgow, Applicant's Agents.