IMPROVEMENTS IN TREATING YOLK OF EGG IN ORDER TO PRESERVE IT AND PREPARE IT FOR EDIBLE AND CULINARY PURPOSES
Year: 1874

page_text: LETTERS PATENT to Josef Pollak, of Vienna, in the Austrian
Empire, now temporarily residing at Charing Cross Hotel, in the
City of. Westminster, Merchant, for the Invention of." IMPROVEMENTS
IN TREATING YOLK OF EGG IN ORDER TO PRESERVE IT AND PREPARE IT FOR
EDIBLE AND CULINARY PURPOSES." -A communication from abroad by
Herr Lengsfeld, of Vienna, aforesaid.
PROVISIONAL SPECIFICATION left by the said Joseph Pollak at the
Office of the Commissioners of Patents, with his Petition, on the
12th May 1874.
I, JOSEF POLLAK, of Vienna, in the Austrian Empire, now tempo-
rarily residing at Charing Cross Hotel, in the City of Westminster,
Merchant, do hereby declare the nature of the said Invention for “Iм-
PROVEMENTS IN TREATING YOLK OF EGG IN ORDER TO PRESERVE IT AND PREPARE
IT FOR EDIBLE AND CULINARY FURposes,” communicated to me from abroad
by Herr Lengsfeld, of Vienna, aforesaid, to be as follows:-

page_text: manner that it may be preserved and applicable for use in food and
beverages. For this purpose the yolk of a number of fresh eggs is
poured or placed in a vessel and well stirred or agitated until the mass
assumes the consistency of butter and becomes of a whitish yellow
colour. Care must be taken that no lumps be formed, or if formed they
must be at once removed, crushed, or smashed. While the mass is being
stirred two or three drops of oil of peaches is added and, the mass is
then spread on smooth plates, slabs, or surfaces of glass, porcelain,
earthenware, metal, or other smooth material, but zinc plates are pre-
ferred. The surfaces are first rubbed with a little fine or pure almond
oil or with wax, clean grease, or other similar material before the yolk
is spread thereon:
The plates, slabs, or surfaces, with the mass on them, are deposited in
a well ventilated drying room, in which a temperature of from 30° to 32°
Reaumur or about 104° Fahrenheit, is continuously maintained. Carc
must be taken that the product is not singed or burnt. After some
hours the product is scraped off the plates or slabs with a blade or sharp
instrument, and it is then reduced to powder, and stored or packed in
tin cases or other suitable receivers.
SPECIFICATION. in pursuance of the conditions of the Letters Patent,
filed by the said Josef Pollak in the Great Seal Patent Office
on the 11th November 1874.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOSEF 2
POLLAK, of Vienna, in the Austrian Empire, formerly temporarily
residing at Charing Cross Hotel, in the City of Westminster, Merchant,
send greeting.
..
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent bearing date the Twelfth day of May, in the year of
our Lord One thousand eight hundred and seventy-four, in the thirty-
seventh year of Her reign, did, for Herself, Her heirs, and suc-
cessors, give and grant unto me, the said Josef Pollak, Her special
license that I, the said Josef Pollak, my executors, administrators, and
assigns, or such others as I, the said Josef. Pollak, my executors,

page_text: 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 of Great Britain and Ireland, the
Channel Islands, and Isle of Man, 'an Invention for "IMPROVEMENTS IN
TREATING YOLK OF EGG IN ORDER TO PRESERVE IT AND PREPARE IT FOR EDIBLE
AND CULINARY PURPOSES," (communicated to me from abroad by Herr
Lengsfeld, of Vienna, aforesaid,) upon the condition (amongst others) that
I, the said Josef Pollak my executors or administrators, by an instrument
) in writing under my, or their, or one of their hands and scals, 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 immediately after the date of the said Letters Patent.
"
NOW KNOW YE, that I, the said Josef Pollak, do hereby declare
the nature of the said Invention, and in what manner the same is to bo
performed, to be particularly described and ascertained in and by the
following statement thereof, that is to say :-
The object of the Invention is to treat the yolk of eggs in such
manner that the said yolk may be preserved and rendered applicable
in such preserved state for use, as or in food and beverages. For this
purpose the yolks of a number of fresh eggs are poured or placed in a
vessel and well stirred or agitated until the mass assumes the con-
sistency of butter and becomes of a whitish yellow colour. Caro
must be taken to stir or agitate the mass so that no lumps be formed, or
if lumps be formed they must be at once removed, crushed, or smashed.
While the mass is being stirred or agitated two or three small drops of
peach oil are added. The mass is then spread on smooth plates, slabs,
or surfaces of glass, porcelain, earthenware, metal, or other smooth
material, but zinc plates are preferred for the purpose. The surfaces
are first rubbed with a little fine pure almond oil, or they may be rubbed
with wax or very pure grease, or with other similar material, before the
yolk is spread thereon.
The plates, slabs, or surfaces, with the mass of yolk spread thereon,
are deposited in a well ventilated drying room in which a temperature
· of from 30° to 32° Reaumur, or about 104° Fahrenheit, is continuously
maintained. Care must be taken that the product is not singed or burnt,

page_text: After a few hours have elapsed the product is scraped off from the
plates, slabs, or surfaces, by means of a blade or sharp instrument, and
it is then crushed or ground, or otherwise pulverized or reduced to
powder. This powder is then ready for being stored or packed in tin
cases or other ordinary suitable receivers.
The powder produced as above described, is readily soluble in warm
water, milk, broth, or other edible liquids.
The peach oil above referred to is used very sparingly, i. e., in very
small proportions. To a quantity of, yolk of egg, say at least or. rather
exceeding 600 yolks (that is the yolk of 600 eggs) two or three drops
of peach oil are added.
Sometimes instead of using peach oil I use the oil of sweet almonds
in a like proportion and in the same manner.
Having now described the nature of the said Invention and in what
manner the same may be performed, I declare that I claim, the mode or 1
process of treating yolk of eggs, substantially in the manner and for
purposes herein described.
the
.
In witness whereof, I, the said Josef Pollak have hereunto set
my hand and seal, this Thirty-first day of October, in the year of
our Lord One thousand eight hundred and seventy-four.
Witness,
RICHARD POпl.
JOSEF POLLAK. (L.S.)