A New or Improved Method of Preserving Eggs.
Year: 1899

page_text: Date of Application, 21st Aug., 1899--Accepted, 7th Oct., 1899
COMPLETE SPECIFICATION.
A New or Improved Method of Preserving Eggs.
I, BRUNO ENDLER, of Baumgarten, near Vienna, in the Empire of Austria,
Gentleman, 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: -
This invention relates to a method of preserving eggs that differs advan-
tageously from hitherto known methods of preserving eggs in that the eggs pre-
served according to it do not show any physical or chemical difference from fresh
eggs or any alteration of the original colour or the smell and taste.
This result is attained according to the method in question by laying the eggs
to be preserved in a liquid mixture whose specific gravity equal or nearly equal
to that of the eggs, whilst the essential components of the said mixture corres-
pond to the inorganic substances contained in the egg (yolk, white, and shell),
so that diffusion-processes between the eggs in the preserving mixture and this
mixture appear to be prevented and the eggs themselves will be kept perfectly
fresh.
Now as the egg contains the inorganic components, potash, soda, lime, mag-
nesia, alumina, iron oxide, phosphoric acid or silicic acid, and chlorine in the
form of salts, according to this invention an aqueous solution of common salt or
mother-liquor salt (sulphate of soda is first prepared, to this solution there are
then added small quantities of the said inorganic substances in any desired
known form, and the whole is brought by suitable dilution to a specific gravity
that approaches as closely as possible that of the eggs to be preserved. As will
be understood this latter, as it is variable according to the place of origin of the
eggs, must be determined for each new lot of eggs by several tests and the aver-
age of the figures so obtained must be taken.
Potash, soda, lime, magnesia, alumina, as well as iron oxide, phosphoric acid
or silicic acid, together with small quantities of chlorine, are, as is known, also
contained in the ashes of several vegetable fibres, particularly in peat ashes;
the said substances can therefore be introduced into the salt solution by adding
peat ashes without departure from the spirit of the invention.
In order to carry out the preserving method in practice the eggs to be pre-
served are arranged in layers in receptacles or cisterns and the mixture having
the composition stated and brought to the specific gravity of the eggs, is then
poured over them, so that the liquid completely covers the eggs. The rooms
intended for the accommodation of the receptacles filled in this manner should
be kept cool and clean; a hermetical sealing of the receptacles is unnecessary.
Eggs that have been treated according to the present method remain quite
fresh for a long time after being taken out of the preserving substance.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed I declare that what
I claim is:
1. A method of preserving eggs consisting in placing the cœơs in a
common.

page_text: salt solution mixed with potash, soda, lime, magnesia, alumina, iron oxide, phos-
phoric acid or silicic acid, and chlorine or with vegetable fibre ashes (preferably
peat ashes) containing these substances, after having made the specific gravity
of the whole liquid equal or approximately equal to the specific gravity of the
eggs.
2. The preservation of eggs as hereinbefore set forth.
F. WISE HOWORTH,
46, Lincoln's Inn Fields, London, W.C., Agent for the Applicant.