Improved Disinfecting Materials.
Year: 1895

page_text: Date of Application, 12th Mar., 1895
Complete Specification Left, 11th Dec., 1895-Accepted, 11th Jan., 1896
PROVISIONAL SPECIFICATION.
Improved Disinfecting Materials.
I, JAMES BRAND MCARTHUR, Chemist, of 3 Parkfield, Newferry, in the
County of Chester, do hereby declare the nature of this invention to be as
follows:-
The disinfecting materials are prepared by absorbing carbolic, cresylic, and
similar acids, oil of cloves, oil of eucalyptus, oil of peppermint, and similar
luids having disinfecting properties, or mixtures thereof, by means of carbon, of
animal or vegetable origin, more particularly the following, and also by means of
waste sulphate of lime:-
a Carbon recovered from the manufacture of prussiate of potash.
6 The same carbon after use in decolorizing paraffin wax, as recovered by
means of volatile solvents.
c The "spent" carbon resulting from the decolorizing of glycerine, or the
same recovered.
d Waste recovered carbon produced by the action of sulphuric acid in the
refining of paraffin or fats.
e That form of lamp-black, commonly known as "soot."
Waste sulphate of lime as produced during the recovery of glycerine
from fats.
I prepare the powder by sprinkling the carbolic acid, or other disinfecting fluid
named, over the carbon, sulphate of lime, or mixtures thereof, mixing the mass
mechanically, in order to form a homogeneous powder, and sifting.
25
The quantity of the disinfecting fluid employed depends upon circumstances,
per
cent. being a convenient proportion.
prepare
the tablets or other moulded forms, by mixing the carbon, or sulphate
of lime, or mixtures thereof, already impregnated with the disinfecting fluid,
with solutions of such substances as soap, gum, glue, flour, silicate of soda, and
the like, then pouring or stamping the mass into moulds, and drying it at a low
temperature.
Or alternatively, by dissolving soap, such fatty acids or fats and alkalies as will
produce soap, or similar binding materials, in the disinfecting fluid, then mixing
the carbon, sulphate of lime, or mixtures thereof, and moulding as before.
Dated this Ninth day of March 1895.
I, JAMES BRAND MCARTHUR, Chemist, of 3 Parkfield, Newferry, in the
County of Chester, 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 :-
The disinfecting materials are prepared by absorbing carbolic, cresylic, and

page_text: similar acids, oil of cloves, oil of eucalyptus, oil of peppermint, and similar fluids
having disinfecting properties, or mixtures thereof, by means of carbon, of animal
or vegetable origin, more particularly the following, and also by means of waste
sulphate of lime, and mixtures of the above with wood sawdust :-
a Carbon recovered from the manufacture of prussiate of potash.
6 The same carbon after use in decolorizing paraffin wax, as recovered by
means of volatile solvents.
c The "spent" carbon resulting from the decolorizing of glycerine or the
same recovered.
d Waste recovered carbon produced by the action of sulphuric acid in the
refining of paraffin or fats.
e That form of lamp-black, commonly known as "soot."
Waste sulphate of lime as produced during the recovery of glycerine
from fats.
Where desirable there is combined with these a proportion of the solutions of
the following:-namely chlorides of calcium, zinc, or magnesium, or glycerine.
I prepare the powder by sprinkling the carbolic acid, or other disinfecting fluid
named, over the carbon, sulphate of lime, or mixtures thereof, mixing the mass
mechanically, in order to form a homogeneous powder and sifting.
25
The quantity of the disinfecting fluid employed depends upon circumstances,
per
cent. being a convenient proportion.
I prepare the tablets or other moulded forms, by mixing the carbon, or sulphate
of lime, or mixtures thereof, already impregnated with the disinfecting fluid,
with solutions of such substances as soap, gum, glue, flour, silicate of soda, and
the like, then pouring or stamping the mass into moulds, and drying it at a low
temperature.
Or alternatively, by dissolving soap, such fatty acids or fats and alkalies as will
produce soap, or similar binding materials, in the disinfecting fluid, then mixing the
carbon, sulphate of lime, or mixtures thereof, and moulding as before.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
Absorbing carbolic acid, and the other disinfecting fluids named, by means of
carbon in all its forms, but more particularly those specified, and with waste
sulphate of lime, to produce disinfecting materials in the form of powders or
tablets substantially as described.
Dated this 22nd day of November 1895.