The Manufacture of an Improved Disinfectant or Composition for Antiseptic, Disinfecting, Sanitary, and other Purposes.
Year: 1896

page_text: Date of Application, 12th Sept., 1896-Accepted, 31st Oct., 1896
COMPLETE SPECIFICATION.
The Manufacture of an Improved Disinfectant or Composition for
Antiseptic, Disinfecting, Sanitary, and other Purposes.
I, HERBERT HISCOTT, of 56 and 57 Aldermanbury, in the City of London,
Merchant, do hereby declare the nature of my said 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 the manufacture of an improved disinfectant or com-
position for antiseptic, disinfecting, sanitary and other purposes.
According to my invention I combine or mix a solution or emulsion of one or
more so-called "tar-acids" or "heavy oils," such as carbolic acid, cresylic acid,
with a-naphthol.
In manufacturing my improved disinfectant or composition I advantageously proceed
as follows, that is to say a suitable quantity by weight of carbolic acid, cresylic acid
or of any of their homologues as for instance "commercial carbolic acid
"crude
phenol" "tar-acids" or "heavy tar-oils" is dissolved mixed or emulsified in the
usual manner by being slowly added to from half to nearly its whole weight of
resin or colophony previously melted in a boiler or other suitable vessel which is
preferably provided with a mechanically operated stirrer or paddle. To this mixture
is then added a sufficient quantity of a strong solution of caustic alkali (either
sola or potash or a mixture of both), the proportions of the resin and alkaline
solution depending on the strength and quality of the "tar-acids" or the like
employed.
A little cotton-seed or cocoa-nut oil soap, in quantity amounting to from four to
eight per cent. of the whole mixture may be added to assist the process of solution.
When the mixture has become smooth and homogeneous the a-naphthol is addet.
The amount of a-naphthol added is regulated according to the amount or
percentage of solul le tar-acids or phenols present in the prepared composition,
that is to say for every hundred parts of such soluble tar-acids or phenols 1 add
from one eighth part to two parts of a-naphthol. Thus, for example, if in the
manufacture of five hundred pounds of my composition, one hundred pounds of
soluble far-acids or phenols are employed then a quantity varying from one eighth
of a pound to two pounds of a-naphthol is added.
My improved disinfectant or composition thus prepared is in a fluid or semi-
fluid state and is readily soluble in, or miscible with, water and forms therewith an
opalescent or milky solution, emulsion, or mixture which even when extremely
dilute is possessed of very powerful disinfectant, deodorant, antiseptic, germicidal,
insecticidal, an detergent properties. Hence it may be employed for any
purposes in which a liquid or compound having such properties is necessary or
expedient.
If my improved disinfectant be required in the solid form, in blocks, cakes, or
powder I add thereto a sufficiency of any inert substance, such for instance as
infusorial earth, silica, plaster of Paris, sawdust or other suitable material to effect
the desired object.
For some purposes, such as the washing of infected linen, utensils or other sanitary
operations, I mix my improved disinfectant with a suitable proportion of good
soap and the said soap may then be advantageously used for such purposes in
place of ordinary soan.

page_text: 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 :-
1. The manufacture of an improved disinfectant or composition for antiseptic,
disinfecting, sanitary and other purposes by combining with, or adding to, carbolic
acid or other phenols, tar-acids or heavy tar-oils, a-naphthol substantially as and in
the proportions described.
2. The improved disinfectant or composition hereinbefore described.
Dated this 12th day of September 1896.
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.