Improvements in the Manufacture of Soap Powders.
Year: 1898

page_text: Date of Application, 2nd Apr., 1898-Accepted, 4th June, 1898
[[Communicated from abroad by ERNST SIEGLIN, of Dusseldori, in the German
Empire, Soap Manufacturer.]
Improvements in the Manufacture of Soap Powders.
I, WILLIAM PHILLIPS THOMPSON, F.C.S., M.I.M.E., of the Agency for Foreign
Patent Solicitors, 322, High Holborn, in the County of Middlesex, 6, Lord Street,
Liverpool, and 6, Bank Street, Manchester, both in the County of Lancaster, and
Lower Temple Street, Birmingham, in the County of Warwick, Civil 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 follow-
ing statement: —
The invention which forms the subject of the present application consists in
improvements in the manufacture of soap powder, and especially in converting the
said soap powders when mixed into such a condition that they are prevented from
lumping or cohering together. These materials are as is well known very much
inclined to cohere together, and when once formed into lumps the separation
thereof is difficult, and renders the proper mixing and manufacture difficult, and
it is therefore very advantageous to avoid this lumping.
The improved process delivers the materials or the mixture after the breaking
in the dry state. In this condition they do not form into lumps, and are suitable
for further working into the finished soap powders. This desirable result is attained
by subjecting the materials pulverised in the breaking machine to the action of a
stream of cold air, whereby the outside of the lumps is surrounded with a crust
which prevents them from sticking together. If then by means of a funnel shaped
receptacle dry soap powder is added the same adheres to the lamps and forms as it
were a covering which further prevents the sticking together."
Referring to the accompanying drawing:-
Figure 1 shews an elevation and part section, and
Figure 2 a plan view of, a machine suitable for conducting the operation.
The materials to be operated upon are placed in the hopper a, they then fall
upon the rolls bb rotating in opposite directions; by means of the knives cc the
said materials are broken up and fall through. Any portions which remain
adhering to the rolls are taken off by means of the scraper d and the upper part
of the middle piece h. It should further be remarked that the track of the
knives cc is so adjusted as to conduct the materials to be disintegrated towards the
middle of the rolls, and thus any pressing towards the sides is rendered impossible.
The letter indicates a fan which creates a powerful current of air. This current
passes into the collecting box f and from this through the funnel into the interior
of the middle piece h out of which it escapes through openings ii. It thus meets
If the
the broken up materials falling down on each side and hardens the same.
collecting box f contains dry soap powder k the same is carried up by means of
the current of air, and is thereby impelled against the broken materials coming
from the rolls. The powder then adheres to these materials, and forms a hard
9.

page_text: outer crust, and prevents the said materials from becoming stuck together, as the
stickiness of the outside is thus taken from them.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed as communicated to me by
my foreign correspondent I declare that what I claim is:-
The improved arrangement for preventing adhesion of disintegrated soap, the
method consisting in subjecting the said materials after passing them through the
breaking rolls bb to an artificially created current of air from a fan e, which
current carries up the powder k contained in the collecting box f through the
funnel or tube g and the middle piece h and thereby encrusts the said materials,
substantially as described.
Dated the 2nd day of April 1898
W. P. THOMPSON & Co.,
322, High Holborn, London, W.C., Patent Agents for the Applicant.