IMPROVEMENTS IN THE MANUFACTURE OF SOAP
Year: 1878

page_text: LETTERS PATENT to John Brunt Mackey and John Sellers (Manufacturing
Chemists), of 1 and 2, Bouveric Street, Fleet Street, London, for the Invention
of "IMPROVEMENTS IN THE MANUFACTURE OF SOAP."
-
Sealed the 27th August 1878, and dated the 7th March 1878.
PROVISIONAL SPECIFICATION left by the said John Brunt Mackey and
John Sellers at the Office of the Commissioners of Patents on the 7th March
1878.
'
JOHN BRUNT MACKEY and JOHN SELLERS (Manufacturing Chemists), of 1 and 2,
Bouverie Street, Fleet Street, London.. "IMPROVEMENTS IN THE MANUFACTURE OF
SOAP."
This Invention consists in the addition of chlorate of potash to a base composed
of potash or soda and a vegetable oil, with or without an admixture of animal fat,
and with or without a per-centage of carbolic acid.
The improvements consist in preparing a base with a large per-centage of potash
and vegetable oil, and in combining with such a base chlorate of potash in a
granular or powdered form, the solution of which is delayed until the
is com-
bined with water in use.
soap

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filedby
the said John Brunt Mackey and John Sellers in the Great Seal Patent Office
on the 6th September 1878.
JOHN BRUNT MACKEY and JOHN SELLERS, Manufacturing Chemists, of 1 and 2,
Bouverie Street, Fleet Street, London. "IMPROVEMENTS IN THE MANUFACTURE OF
SOAP."
The improvements consist in mixing with soap during manufacture an agent, such
as chlorate of potass, or any other substance which in process of solution in water
will give off oxygen, to be sifted into or mixed with the base of said soap when on
the point of its setting, or just before it is allowed to cool, in such manner that the
oxydising agent is not then dissolved in such soap base, but preserved therein more
or less intact until the soap so treated comes to be dissolved or broken up in water
when used, whereupon the chlorate of potass or other agent is dissolved while in
contact with the matters to be cleansed, and the dirt therein or therefrom is acted
upon by the chlorate of potass or other agent, and hence more thoroughly and
readily removed than by the use of soaps as ordinarily manufactured.
The chlorate of potass, which we prefer to use as the oxydising agent, or any
other equally suitable oxydising agent, is to be introduced in the form of fine
crystals, granules, or powder into the soap base when the latter is on the point of
setting, and just before it is allowed to cool, and equally distributed by mixing
throughout the said base.
The quantities may be varied without departing from the nature of the Invention,
but we find that seven pounds of pulverized crystals of chlorate of potass to 112
pounds of soap base gives the best result we have at present arrived at.
The soap base may be made, as at present, with cocoa nut or palm oil saponified
with potass lyes, and carbolic acid or other disinfector may be added to the base if
desired.
The soap may be treated with colouring matter and scented or otherwise adapted
for special purposes, such as the toilet, shaving, and other uses, provided always that
the essential principle of the admixture of an oxydising agent preserved undissolved
in the base, as herein-before stated, be first carried out in the manufacture.
In witness whereof, we, the said John Brunt Mackey and John Sellers,
have hereunto set our hands and scals, this Twenty-ninth day of August,
A.D. 1878.