IMPROVEMENTS IN THE MANUFACTURE OF CERTAIN KINDS OF SOAP
Year: 1857

page_text: (This Invention received Provisional Protection, but notice to proceed with the
application for Letters Patent was not given within the time prescribed
by the Act.)
PROVISIONAL SPECIFICATION left by William Gossage at the Office of
the Commissioners of Patents, with his Petition, on the 21st April
1857.
I, WILLIAM GOSSAGE, of Widnes, in the County of Lancaster, Chemist,
do hereby declare the nature of the said Invention for "IMPROVEMENTS IN THE
MANUFACTURE OF CERTAIN KINDS OF SOAP," to be as follows:-
My Invention applies, firstly, to the manufacture of some of those kinds of
soap which are or may be produced by the combination of soaps, and by the
alkalization of oily, fatty, or resinous substances, or mixtures of such sub-
stances, by the mode of working known as the "open process," (in which the
soap produced becomes separated from the excess of lyes and water employed
as a curd soap,) with soaps made by the alkalization of oily, fatty, or resinous
substances, or mixtures of such substances, by the mode of working known as
the "close process," in which lyes and water employed remain in combina-
tion with the soap produced.
In the Specifications of several Letters Patent granted to me for improve-
ments in the manufacture of certain kinds of soap, I have fully described
and ascertained the means by which I manufacture soaps by the "close
process" containing silicate of soda or silicate of potash. My present Invention
applies to the combination or mixture with such soaps of curd soaps made by
the mode of working known as the "open process."

page_text: My Invention applies, secondly, to the manufacture of those kinds of soap
which are known as "mottled" or "variegated" soaps. In effecting this part
of my Invention, when using soap made by the "close process," or mixtures
of such soap with soap made by the "open process," for the production of
"mottled" or "variegated" soap, I introduce the soap or soaps employed into
a tub or vessel provided with a perforated plate or a grating, together with
suitable coloring matter to produce the mottled or variegated appearance, and
I agitate the mixture therein until it acquires a proper degree of thickness by
cooling, when I cause it to flow or to be pressed through such perforated plate
or grating, and thereby to acquire such a character of mottle or variegation
as is estimated by the public. In effecting this second part of my Invention,
as this may be applied to the production of mottled or variegated yellow soap,
when employing yellow soap made by the "close process" or made by the process
called "fitting," I use colored "curd soap" or colored "fitted or close soap" of
such quality as that it requires a higher degree of temperature for its fusion
than the yellow soap to which I desire to communicate a mottle or variegation.
I introduce the yellow soap into a tub or vessel, or into ordinary soap frames,
and I agitato this until by cooling it has acquired a proper degree of con-
sistence; I then introduce to the same a quantity of colored curd or fitted
or close soap having a temperature a few degrees higher than its own point of
fusion, and I mix the soaps together by agitating or crutching until the
mixture acquires the degree of mottle or variegation I desire to communicate
to it.