Process for Preserving Organic Substances and for Disinfection.
Year: 1891

page_text: Date of Application, 11th Dec., 1891
Complete Specification Left, 9th Sept., 1892-Accepted, 15th Oct., 1892
PROVISIONAL SPECIFICATION.
[Communicated from abroad by THE FARBWERKE VORMALS MEISTER LUCIUS
AND BRUNING, of Hoechst a/ Main, in the Empire of Germany, Chemical
Manufacturers.]
Process for Preserving Organic Substances and for Disinfection.
I, OLIVER IMRAY, of No. 28 Southampton Buildings, Chancery Lane, in the
County of London, Chartered Patent Agent, do hereby declare the nature of this
invention to be as follows:-
-
This invention consists in a process of treating substances liable to putrefaction,
fermentation or mildew, with formaldehyde, whereby they are effectually dis
infected and protected against the action of organisms.
In making bacterological experiments it has been discovered that formaldehyde
is an excellent antiseptic and that for example it kills the bacteria of anthrax
already on the addition of a twenty five thousandth part thereof to the nourishing
liquid.
By further experiments tried in this direction it was ascertained that putrefaction
bacteria, ferment germs, mildew fungus, and the like were also completely impeded
in their development by formaldehyde, and on this fact has been based a process
for preserving and disinfecting those products which by the action of the organisms
mentioned are liable to undergo decomposition, showing the symptoms of putre-
faction, fermentation and mildew.
When used in the extremely small quantities that are sufficient for the
preservation of the products, formaldehyde is entirely innocuous, and not the
slightest action upon the physical quality of the products can be traced. Meat,
vegetables and other victuals for example do not lose anything of their appearance
of freshness.
The mode of carrying out the process varies according to the nature of the
products to be preserved. Meat and similar substances are immersed for a short
time (generally a few seconds will be sufficient) into an aqueous solution of
formaldehyde which, when used even in as low a dilution as both part, will have
the required action; or the substances are treated with formaldehyde vapour.
Liquids to be treated are admixed with the quantity (a small one) of a formal-
dehyde solution sufficient to produce the effect aimed at.
Dated this 11th day of December 1891.
ABEL & IMRAY,
Agents for the Applicant.
COMPLETE SPECIFICATION.
Process for Preserving Organic Substances and for Disinfection.
I, OLIVER IMRAY, of No. 28 Southampton Buildings, Chancery Lane in the
County of London, Chartered Patent Agent, 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 consists in a process of treating substances liable to putrefaction,
fermentation or mildew, with formaldehyde, whereby they are effectually dis-
infected and protected against the action of organisms.
In making bacterological experiments it has been discovered that formaldehyde
is an excellent antiseptic and that, for example, it kills the bacteria of anthrax on
the addition of only a twenty five thousandth part thereof to a nutritive liquid.

page_text: By further experiments tried in this direction it has been ascertained that
putrefaction bacteria, ferment germs, mildew fungus, and the like are completely
impeded in their development by formaldehyde, and on this fact has been based a
process for preserving and disinfecting those products which, by the action of the
organisms mentioned, are liable to undergo decomposition, showing the symptoms
of putrefaction, fermentation and mildew.
When used in the extremely small quantities that are sufficient for the
preservation of the products, formaldehyde is entirely innocuous, and not the
slightest action upon the physical quality of the products can be traced. Meat,
vegetables and other articles of food, when treated with it, do not lose anything of
their appearance of freshness.
The mode of carrying out the process varies according to the nature of the
products to be preserved. Meat and similar substances are immersed for a short
time (generally a few seconds will be sufficient) in an aqueous solution of formal-
dehyde which, when used even in as low a dilution as both part, will have the
required action; or the substances are treated with formaldehyde vapour.
liquids to be treated is mixed a small quantity of a formaldehyde solution sufficient
to produce the effect aimed at.
With
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, I declare that what
I claim is :-
The herein described process for preserving and disinfecting organic substances
by treating them with formaldehyde.
1000
ABEL & IMRAY,
Agents for the Applicant.