Improvements connected with Roasting Coffee.
Year: 1890

page_text: Date of Application, 9th Jan., 1890
Complete Specification Left, 28th Feb., 1890-Accepted, 19th Apr., 1890
PROVISIONAL SPECIFICATION.
Improvements connected with Roasting Coffee.
I, NICOLAS LUCIEN LE TURCQ DES ROSIERS of Château de Moulainville par Etain
(Meuse) France, Gentleman do hereby declare the nature of this invention to be as
follows:-
The object of my Invention is the production of coffee possessing qualities superior
to those possessed by coffees prepared by any other known process. This result is
attained by augmenting the proportion of caffeine and caffeone in the roasted coffee
which I am enabled to do by the employment of means for effecting the condensation
of the vapors as they pass from the roaster in such manner that those only which are
of service are collected, while those which do not possess any tonic properties are
discharged into the atmosphere before being allowed to condense.
The improved process of my invention may be carried into effect by means of the
condenser hereinafter described and illustrated in the accompanying drawings by
which the automatic separation of the vapors is produced under such conditions that
only the useful principles contained in the roasted coffee are collected, as above
mentioned.
The process is based on the free condensation of the vapors in the air as they pass
from the roaster, the apparatus being so constructed that the temperature can never
fall sufficiently low to condense the vapors of the pyridic and other substances which
are to be got rid of.
Figure 1 of the drawing represents, by way of example, the combination of the
condenser with a coffee roaster of any desired kind, while figures 2 and 3 represent
details of the condenser for effecting the condensation and collection of the products,
but it will be understood that the details of construction of the condenser may be
varied to any desired extent.
a, figure 2, is a vessel provided or not with a cover to contain water or other liquid
for regulating the condensation which is maintained at a temperature of about
212° Fahrenheit. The liquid in this vessel may be renewed at intervals or a circu-
lation of hot water may be established in such manner as to maintain the walls of the
vessel at the exact temperature required to ensure the automatic separation of the
vapors according to their respective points of condensation. The vessel a (whose
surface may be increased by corrugations, flutes, etc.,) fits into the mouth of a
cylinder b, figure 3, which has around its upper part a series of orifices c, in any
suitable number and position, or is formed with a rim, upon which the vessel a rests,
having ribs or projections between which the vapors can escape. The cylinder b
connects at its base with the roaster by pipe d, through which the vapors pass into
the cylinder, and it is provided with another pipe e for running off the condensed
liquid products which collect therein.
It will be understood, by what has preceded, that the temperature in cylinder b
never much exceeds 212° Fahrenheit.
Now, it has been found by experiment that of the vapors which escape from coffee
in roasting, caffeine and caffeone alone condense below that temperature and the
result of this is that those which remain in the form of vapor pass away into the
atmosphere through the orifices c. In this manner, an automatic separation of
the vapors is effected wholly independent of the action of the roaster. The caffeine
and caffeone are collected in a liquid form at e and are afterwards mixed with the
roasted coffee berries while they are still sufficiently hot to vaporize the water
contained by means of any suitable apparatus provided with an injector and stirrer.

page_text: These products become reassimilated to a remarkable degree with the berries without
sensibly increasing the weight of the coffee and furnish a relatively high proportion of
those elements which impart to the coffee its tonic properties.
Dated this 9th day of January 1890
N. L. LE TURCQ DES ROSIERS.
By A. M. & Wm. Clark,
53, Chancery Lane, London, Patent Agents.
COMPLETE SPECIFICATION.
Improvements connected with Roasting Coffee.
I, NICOLAS LUCIEN LE TURCQ DES ROSIERS of Château de Moulainville par Etain
(Meuse) France, Gentleman, do hereby declare the nature of this invention and in
what manner the same is to be performed, to be particularly described and ascer-
tained in and by the following statement:-
The object of my invention is to confer upon coffee qualities superior to those
obtained by any other known process of roasting. This result is attained by effecting
the condensation of the vapors, as they pass from the roaster in such manner that
those only which are of service are collected while those which do not possess any
tonic properties are discharged into the atmosphere before being allowed to condense,
the condensed product of the first-mentioned vapors being afterwards added to the
roasted coffee berries whereby the proportion of caffeine and caffeone is augmented.
The improved process of my invention may be carried into effect by means of the
condenser hereinafter described and illustrated in the drawings accompanying my
Provisional Specification by which the automatic separation of the vapors is produced
under such conditions that only the useful principles contained in the roasted coffee
are collected as above mentioned. The process is based on the free condensation,
under atmospheric pressure, of the vapors in the air as they pass from the roaster, the
apparatus being so constructed that the temperature can never fall sufficiently low
to condense the vapors of the pyridic and other substances which are to be got
rid of.
Figure 1 of the drawing represents, by way of example, the combination of the
condenser with a coffee-roaster while figures 2 and 3 represent the two parts of the
condenser for effecting the fractional condensation of the vapors and the collection
of the products, but it will be understood that the details of construction of the
condenser may be varied to any desired extent.
a, figure 2, is a vessel provided or not with a cover to contain water or other liquid
for regulating the condensation which is maintained at a temperature of about
212° Fahrenheit. The liquid in this vessel may be renewed at intervals or a circu-
lation of hot water may be established in such manner as to maintain the walls of the
vessel at the exact temperature required to ensure the automatic separation of the
vapors according to their respective points of condensation. The vessel a (whose
surface may be increased by corrugations ribs etc.) fits into the mouth of a cylinder b,
figure 3, which has around its upper part a number of orifices c or is formed with a
rim, upon which the vessel a rests, having ribs or projections between which the
vapors can escape. The cylinder bis connected at its base with the roaster by pipe d
through which the vapors pass into the cylinder and it is provided with another pipe e
for running off the condensed liquid' products which collect therein.
It will be understood by what has preceded that the temperature in cylinder b
never much exceeds 212° Fahrenheit. Now it has been found by experiment that,
of the vapors which escape from coffee in roasting, caffeine and caffeone alone
condense below that temperature and the result of this is that those which remain
in the form of vapor pass away into the atmosphere through the orifices c. In
this manner an automatic separation of the vapors is effected wholly independent

page_text: of the action of the roaster. The caffeine and caffeone are collected in a liquid
form at e and are afterwards mixed, by means of any suitable apparatus provided
with an injector and stirrer, with the roasted coffee berries while they are still
sufficiently hot to vaporise the water contained. These products become reassimilated
to a remarkable degree with the berries without sensibly increasing the weight of
the coffee, and furnish a relatively high proportion of those elements which impart
to the coffee its tonic properties.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is;
The herein described process of increasing the proportion of caffeine and caffeone
in coffee, which consists in effecting the fractional condensation of the vapors evolved
during the roasting operation by means of an apparatus wherein the temperature
is maintained at such a point as to permit the condensation only of the caffeine
and caffeone the condensed product being afterwards reassimilated with the coffee
berries, as specified.
D
ليوم
1000
N. L. LE TURCQ DES ROSIERS.
By A. M. & Wm. Clark,
53, Chancery Lane, London, Patent Agents.
N. L. LE TURCQ DES ROSIERS.
By A. M. & Wm. Clark,
53, Chancery Lane, London, Patent Agents.