IMPROVED PREPARATIONS OF CONDENSED MILK HAVING MEDICINAL, TONIC, AND NUTRITIVE PROPERTIES
Year: 1881

page_text: "
LETTERS PATENT to Alexander Melville Clark, of 53, Chancery Lanc, in the
County of Middlesex, Patent Agent, for an Invention of IMPROVED
PREPARATIONS OF CONDENSED MILK HAVING MEDICINAL, TONIC, AND
NUTRITIVE PROPERTIES." A communication from abroad by Raoul Bris,
of Paris, France.
PROVISIONAL SPECIFICATION left by the said Alexander Melville Clark
at the Office of the Commissioners of Patents on the 2nd April 1881.
ALEXANDER MELVILLE CLARK, of 53, Chancery Lane, in the County of
Middlesex, Patent Agent. "IMPROVED PREPARATIONS OF CONDENSED MILK
HAVING MEDICINAL, TONIC, AND NUTRITIVE PROPERTIES." [A communication
from abroad by Raoul Bravais, of Paris, France.]
This Invention relates to improved preparations of condensed milk with tar or
with extract of meat to form compounds having medicinal, tonic, and nutritive
properties.
Several methods are known and in use for the preparation of condensed milk,
but in order to manufacture it in large quantities, and in order to render it fit for
use as the basis of the compounds of this, Invention, it is necessary to prepare it in
vacuo. The apparatus employed for this purpose consists of a large copper cylinder
hermetically closed and furnished with glazed sight holes, which enable the operator
to watch and graduate the process of manufacture. The vacuum is formed in this
cylinder by an air pump, whereby the rapid evaporation of the aqueous constituents
is determined without liability of the accidental coagulation of the milk. The
operation is more rapid and effective so conducted than in any other way, and
yields for the purposes of this Invention a condensed milk free from any cause of
deterioration.
In order that the tar may be intimately mixed with the condensed milk
and combine with it, and form a compound capable of dissolving entirely in water,
the tar requires to be prepared in a special manner. Up to the present time the
tar could only be rendered soluble in water by treating it with alkalies, whereas,
according to this Invention, the use of these chemical agents is entirely avoided.
I take condensed milk prepared as herein before described, and add thereto a notable
proportion of raw tar, and by means of an energetic stirring and the employment
of heat, the emulsion of the mixture is very gradually brought about.
This
emulsion has the effect of combining the milk with the tar, and of rendering the
[Price 4d.1

page_text: entirely soluble and aiutable in water, whereas it would otherwise remain
in its viscous condition, and could not dissolve. This product contains the tar in
by far too great proportion to be taken internally, and it is in fact but one of the
ingredients of the final compound of milk and tar of this Invention.
In preparing the extract of meat for combination with condensed milk, the
leanest and most nutritious parts of butchers' meat are selected, care being taken
to avoid using fat or bony portions, which would introduce gelatinous or oily
matters into the product. I treat this fresh meat without addition of any foreign
matter by boiling it in water, and I evaporate the decoction in vacuo until
sufficiently concentrated to form a syrupy extract, which is capable of being
intimately mixed with the condensed milk. All the nutritive juices of the meat
are extracted by this process, and they are dissolved by cooking at a very moderate
and regular heat. The operation being effected in the vacuum pan, as above
described, the product is perfectly pure.
The compounds of this Invention are,-
1st. Condensed or concentrated milk with tar.
2nd: Condensed or concentrated milk with meat extract.
The ingredients having been separately prepared by the processes above described,
I incorporate with the pure condensed milk either the milky emulsion of tar above
described, or extract of meat in the proper proportion for use.
The operation, which is identical for the two processes, is performed in a steam
heated receptacle at the proper temperature. The mixture is effected without
interruption by a uniform and rapid rotary motion effected by means of agitators
working within the receptacle, and as soon as the two substances are thoroughly
incorporated together, the mixture is sealed up in bottles or tin cans or boxes. By
avoiding exposure to the air the compounds are not liable to deterioration, and may
be preserved for an indefinite time in a fit state for food.
I would here observe that I employ a double closure for the bottles or tin boxes
containing the compounds of this Invention, that is to say, that after removing
with the point of a penknife an outer cover soldered down, there is beneath it a
second movable cover, and which may be replaced on the box or can, and which
serves to keep out the air and dust. This double closure assures the preservation
in a state fit for food of the improved compounds, and has also the advantage that
it prevents contact of the contents of the can with the soldered joint, thereby
preventing any action on the contents.
It will be hardly necessary to mention that the dose of tar or of meat extract
to be incorporated with the condensed milk would be regulated according to
requirements.
The condensed milk and tar compound furnishes a pleasant and agreeable drink,
the taste of the tar being combined with that of the milk in such manner as with
the addition of a little sugar if necessary to impart a delicious aroma without
acridity, and palatable to all tastes. A spoonful of this compound in a glass of
water makes in a few seconds an excellent milk.
The tar besides its medicinal properties possesses antiseptic properties, and by
its presence in the condensed milk augments in a wonderful degree its keeping
properties. This of itself constitutes an improvement of the very greatest com-
mercial importance.
The condensed milk and meat extract compound combines in the smallest
possible bulk all the principles of a nutritive and agreeable food, such as milk and
ineat, and the combination of these principles has the highly important result that
the presence of the one promotes the assimilation of the other, thereby constituting
a digestive palatable tonic and health giving food, especially valuable for old and
sick persons, delicate stomachs, and children.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Alexander Melville Clark in the Great Seal Patent Office on the
29th September 1881.
"
ALEXANDER MELVILLE CLARK, of 53, Chancery Lane, in the County of
Middlesex, Patent Agent. IMPROVED PREPARATIONS OF CONDENSED MILK
HAVING MEDICINAL, TONIC, AND NUTRITIVE PROPERTIES." A communication
from abroad by Raoul Bravais, of Paris, France.
This Invention relates to improved preparations of condensed milk with tar or
with extract of meat to form compounds having medicinal, tonic, and nutritive
properties.
Several methods are known and in use for the preparation of condensed milk,
but in order to manufacture it in large quantities, and in order to render it fit for
use as the basis of the compounds of this Invention, it is necessary to prepare it in
vacuo. The apparatus employed for this purpose consists of a large copper cylinder
hermetically closed and furnished with glazed sight holes which enable the operator
to watch and graduate the process of manufacture. The vacuum is formed in this
cylinder by an air pump, whereby the rapid evaporation of the aqueous constituents
is determined without liability of the accidental coagulation of the milk. The
operation is more rapid and effective so conducted than in any other way, and
yields for the purposes of this Invention a condensed milk free from any cause of
deterioration.
In order that the tar may be intimately mixed with the condensed milk, and
combine with it and form a compound capable of dissolving entirely in water, the
tar requires to be prepared in a special manner. Up to the present time the tar
could only be rendered soluble in water by treating it with alkalies, whereas
according to this Invention the use of these chemical agents is entirely avoided.
I take condensed milk; prepared as hereinbefore described, and add thereto a
notable proportion of raw tar, and by means of an energetic stirring and the employ-
ment of heat the emulsion of the mixture is very gradually brought about. This
emulsion has the effect of combining the milk with the tar, and of rendering the
latter entirely soluble and dilutable in water, whereas it would otherwise remain
in its viscous condition and could not dissolve. This product contains the tar in
by far too great proportion to be taken into the stomach, and it is in fact but
one of the ingredients of the final compound of milk and tar of this Invention.
In preparing the extract of meat for combination with condensed milk, the
leanest and most nutritious parts of butchers' meat are selected, care being taken
to avoid using fat or bony portions which would introduce gelatinous or oily
matters into the product. I treat this fresh meat without addition of any foreign
matter by boiling it in water, and I evaporate the decoction in vacuo until
sufficiently concentrated to form a syrupy extract which is capable of being
intimately mixed with the condensed milk. All the nutritive juices of the meat
are extracted by this process, and they are dissolved by cooking at a very moderate
and regular heat. The operation being effected in the vacuum pan, as above
described, the product is perfectly pure.
The compounds of this Invention are:-
1st. Condensed or concentrated milk with tar.
2nd. Condensed or concentrated milk with meat extract.
The ingredients having been separately prepared by the processes above described,
I incorporate with the pure condensed milk either the milky emulsion of tar, above
described, or extract of meat in the proper proportion for use.
The operation, which is identical for the two processes, is performed in a steam
heated receptacle at the proper temperature. The mixture is effected without

page_text: interruption by the uniform and rapid rotary motion of agitators working within
the receptacle, and as soon as the two substances are thoroughly incorporated
together the mixture is sealed up in bottles or tin cans or boxes. By avoiding
exposure to the air the compounds are not liable to deterioration, and may be
preserved for an indefinite time in a fit state for food.
I would here observe that I employ a double closure for the bottles or tin boxes
containing the compounds of this Invention, that is to say, that after removing
with the point of a penknife an outer cover soldered down, there is beneath it a
second movable cover which may be replaced on the box or can to keep out the
air and dust. This double closure assures the preservation in a state fit for food
of the improved compounds, and has also the advantage that it prevents contact of
the contents of the can with the soldered joint, thereby preventing any action
on the contents.
It will be hardly necessary to mention that the dose of tar or of meat extract
to be incorporated with the condensed milk would be regulated according to
requirements.
The condensed milk and tar compound furnishes a pleasant and agreeable drink,
the taste of the tar being combined with that of the milk in such manner as with
the addition of a little sugar if necessary to impart a delicious aroma without
acridity, and palatable to all tastes. A spoonful of this compound in a glass of
water makes in a few seconds an excellent milk.
The tar besides being medicinal possesses antiseptic properties, and by its
presence in the condensed milk augments in a wonderful degree its keeping
properties. This of itself constitutes an improvement of the very greatest com-
mercial importance.
The condensed milk and meat extract compound combines in the smallest
possible bulk all the principles of a nutritive and agreeable food, such as milk
and meat, and the combination of these principles has the highly important result
that the presence of the one promotes the assimilation of the other, thereby
constituting a digestive palatable tonic and health giving food, especially for old
and sick persons, delicate stomachs, and children.
Having described the nature of the said Invention, and the manner of performing
the same, I declare that what I claim as the Invention to be protected by the
hereinbefore in part recited Letters Patent is,-
1st. The manufacture of a compound of condensed or concentrated milk and
tar, substantially as herein before described.
2nd. The manufacture of a compound of condensed or concentrated milk and
extract of meat, substantially as hereinbefore described.
In witness whereof, I, the said Alexander Melville Clark, have hereunto set
my hand and seal, this Twenty sixth day of September, A.D. 1881.
A M CLARK