Improvements in the Manufacture or Preparation of Disinfectants or Antiseptics.
Year: 1889

page_text: Date of Application, 22nd May, 1889
Complete Specification Left, 20th Feb., 1890-Accepted, 22nd Mar.,
1890
PROVISIONAL SPECIFICATION.
Improvements in the Manufacture or Preparation of Disinfectants or
Antiseptics.
We, WILLIAM BLACK of the City and County of Newcastle-on-Tyne, Engineer and
WILLIAM LAMBERT RENNOLDSON of Jarrow-on-Tyne in the County of Durham,
Chemical Engineer, do hereby declare the nature of this Invention to be as follows:-
In the Specification of Letters Patent No. 1696, 4th February 1888 granted to us
we have described the manufacture or preparation of antiseptics wherein we incorporate
perchloride of mercury with Glauber salt or other salts. According to this present
Invention we also incorporate with the material along with the perchloride of mercury,
free sulphuric acid or hydrochloric acid, eucalyptus oil or essence or a similar
substance a essence which evolves a pervading purifying odour such as thymol and
we also colour the material with some distinct colouring matter such for instance as
indigo made soluble
By this means we make the disinfectant or antiseptic more efficient the free acid
making the action of the perchloride more energetic and the eucalyptus oil. or the like
assists in itself while to have the material and its solution of a distinct colour is an
advantage in practice.
The proportions in which we prefer to mix the ingredients are about as follows:-
Perchloride of mercury 4 parts (by weight,) sulphuric acid 4 parts, eucalyptus
1 part, indigo 1 part, Glauber salt 90 parts, but we do not limit ourselves to those
proportions.
We prefer to compress the substance into blocks or tablets of convenient size and
weight for use, these we enclose separately in an impervious covering of such material
as waxed paper or vegetable parchment to prevent any hygroscopic alteration, outside
of which we wrap a covering of ordinary paper, having printed on it directions
for use.
We thus relieve the user of all trouble which is usually entailed in taking from a
bottle &c. a portion of its contents for use, as one block about a cubic inch is a proper
quantity to dissolve in a convenient quantity (usually about a quart) of water to obtain
a very strong disinfecting or antiseptic liquid.
Dated this 22nd day of Mar 1889
J. H. JOHNSON & Co.,
47, Lincoln's Inn Fields, W.C., Agents.
COMPLETE SPECIFICATION.
Improvements in the Manufacture or Preparation of Disinfectants or
Antiseptics.
We, WILLIAM BLACK of the City and County of Newcastle on Tyne, Engineer and
WILLIAM LAMBERT RENNOLDSON of Jarrow-on-Tyne in the County of Durham
Chemical Engineer 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 :-
In the Specification of Letters Patent No. 1969 granted to us and dated 4th
February 1888 we have described the manufacture or preparation of antiseptics
wherein we incorporate perchloride of mercury with Glauber salt or other salt.
According to this present Invention we also incorporate with the perchloride of
mercury and Glauber or equivalent salt free sulphuric acid or hydrochloric acid and
also eucalyptus oil or essence or a similar substance or essence which evolves a
4.27

page_text: pervading purifying odour such as thymol and we also colour the material with some
distinct colouring matter such for instance as indigo made soiuble..
By this means we make the disinfectant or antiseptic more efficient the free ácid
making the action of the perchloride more energetic and the eucalyptus oil or the like
assists in itself to give disinfecting or antiseptic properties to the mixture whilst to
have the material or its solution of a distinct colour is an advantage in practice.
The proportions in which we prefer to mix the ingredients are as follows:-
Perchloride of mercury four parts by weight sulphuric acid or hydrochloric acid.
four parts by weight, eucalyptus oil (or its equivalent) one part by weight, indigo
(or its equivalent) one part by weight and Glauber salt (sulphate of soda) either
anhydrous or crystallized or both together ninety parts by weight, but we do not limit
ourselves to these proportions.
We prefer to compress the substance into blocks or tablets of convenient size and
weight for use. These we enclose separately in an impervious covering of such
material as waxed paper or vegetable parchment to prevent any hygroscopic action
outside of which covering we wrap an out r cover of ordinary paper which may have
printed on it the directions for use. We thus relieve the user of all trouble which is
usually entailed in taking the mixture or solution from a bottle or the like a portion
of its contents for use, as one block (say about a cubic inch) is a proper quantity to
dissolve in a convenient amount (usually about a quart) of water to obtain a very
strong disinfecting or antiseptic liquid. We may if desired however supply it for
sale in the form of a liquid or solution.
Having now particularly described and ascertained the nature of our said Inven-
tion and in what manner the same is to be performed we declare that what we
claim is :-
1. The manufacture or preparation of a disinfectant or antiseptic by mixing.
perchloride of mercury; free sulphuric or hydrochloric acid; eucalyptus oil or
thymol or the like; and a colouring matter and an absorbing material such as Glauber
salt or the like substantially as hereinbefore described.
2. As a new article of manufacture a disinfectant or antiseptic made substantially
as hereinbefore described and whether in the form of a liquid or solution or in a dry
state and made up if so desired in impervious packets containing any proper quantities
for use.
Dated this 20th day of February 1890.