Manufacturers.
Year: 1887

page_text: Date of Application, 24th Sept., 1887
Complete Specification Left, 1st June, 1888
Complete Specification Accepted, 3rd Aug., 1888
A communication from abroad by THE FIRM
OF
SCHIFFER AND
KIRCHER,
ΟΙ
Grünstadt, Bavarian Palatinate, Manufacturers.
I, WILLIAM PHILLIPS THOMPSON F.C.S. M.I.M.E. of the Agency for foreign
Patent Solicitors, 6, Lord Street, Liverpool and 6, Bank Street Manchester, both in
the County of Lancaster and 323, High Holborn, in the County of Middlesex, Civil
Engineer, do hereby declare the nature of this invention to be as follows:-
The present apparatus consists essentially, in a mill in which the materials to be
treated are brought, ground, or reduced to powder, under a stream of water, after
which part of the said material is removed again from the apparatus by the same
water flowing out of the machine.
The invention may be applied to a disc mill (Schlezzmühle) having a stone or plate
revolving on a bed between which the material is ground, or to a ball mill
(Kugelmühle) but it will be evident that other forms of mill may be employed.
In a disc mill the hopper serves to introduce the material to be ground, while the
necessary water is admitted in any convenient manner to the interior of the mill by
means of a pipe provided with a stop valve. This water, takes up during the washing
of the apparatus those particles of the material introduced therein, which have been
ground or reduced sufficiently, and rises in consequence with these particles through
a funnel, preferably in the upper part of the apparatus, and is discharged with them
through a pipe or opening in the said funnel.
This water is collected in tanks wherein the solid parts settle down at the bottom
after a while, so that the said parts can be separated from the water.
As the material introduced comes out ground or triturated through the funnel, so
in proportion the mill is filled up with fresh material through the hopper. The
working of the apparatus will therefore be continuous if the water is supplied
uninterruptedly through the feed pipe.
In a ball mill the material is introduced through a funnel and ground to pieces in
the mill under a flow of water flowing in through a feed pipe provided with the stop

page_text: cock, by which operation the parts sufficiently triturated and in suspension in the
water rise again through the same funnel, run out through a pipe, and are collected
just in the same manner as before described.
As the funnel of this apparatus serves both as feeding hopper and discharging spout,
the working is not continuous. However, to render the working continuous, it is
only necessary to adapt on the other side of the grinding cylinder, another funnel,
which can be used exclusively as feeding hopper, whilst the water flows out through
the funnel along with the finely triturated material.
In both apparatus, the heavier parts of the material, which is fed in, remain in
them, and can be removed therefromi from time to time.
Dated this 23rd day of September 1887
WM. P. THOMPSON & Co.,
Of 6, Lord Street, Liverpool,
Filing Agents for the Applicant.

page_text: I, WILLIAM PHILLIPS THOMPSON F.C.S. M.I.M.E. of the Agency for Foreign
Patent Solicitors, 6 Lord Street, Liverpool, and 6 Bank Street, Manchester, both in
the County of Lancaster, and 323 High Holborn, in the County of Middlesex, 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
following statement :-
The present apparatus consists essentially, in a mill in which the materials to be
treated, are brought, ground, or reduced to powder, under a stream of water after
which part of the said material is removed again from the apparatus by the same
water flowing out of the machine.
The invention is best understood by aid of the accompanying drawing in which:
Figure 1 shows the invention applied to an ordinary grinding mill with horizontal
stones.
Figure 2 shows the same applied to a ball mill.
In the application of the apparatus to an ordinary grinding mill with horizontal
stones as shown on Figure 1, the hopper C serves to introduce the material to be
ground, while the necessary water is admitted in any convenient manner to the
interior of the mill by means of a pipe provided with a stop valve d. This water
takes up during the working of the apparatus, those particles of the material
introduced therein which have been ground or reduced sufficiently, and rises in
consequence with these particles through a funnel a in the upper part of the apparatus
and is discharged with them through a spout or short piping i provided at the top
of the said funnel.
This water is collected in tanks wherein the solid parts settle down at the bottom
after a while, so that the said parts can be separated from the water.
As the material introduced comes out ground or triturated through the funnel a,
so in proportion the mill is filled up with fresh material through the hopper C. The
working of the apparatus will therefore be continuous if the water is supplied
uninterruptedly through the feed pipe r.
In the application of the invention to a ball mill as shown on Figure 2 the material
is introduced through the funnel a and ground to pieces in the mill, under a flow
of water flowing in through the feed pipe b, provided with tho stop cock, by which

page_text: operation the parts sufficiently triturated and in suspension in the water rise again
through the same funnel, run out through a pipe i, and are collected just in tho samo
manner as before described.
As the funnel a of this apparatus serves both as feeding hopper and discharging
spout, the working is not continuous. However, to render the working continuous,
it is only necessary to adapt on the other end of the grinding cylinder another
funnel, which can be used exclusively as feeding hopper, whilst the water flows out
through the funnel a along with the finely triturated material.
In both apparatus the heavier parts of the material, which is fed in, remains in
them, and can be removed therefrom from time to time.
Having now particularly described and ascertained the nature of the said Invention,
and in what manner the same is to be performed, as communicated to me by my
foreign correspondents, I declare that what I claim is:
An apparatus for simultaneously grinding and sorting substances of unequal grain
and various specific weights, which consists in,
a) The combination with an ordinary horizontal grinding mill with a casing G
surrounding the mill stones of a central funnel a, a feeding hopper c and a water
pipe arranged in such a manner that whilst the treatment of the material to be
triturated progresses under a continuous stream of water admitted into the casing
through the pipe r, fresh material is fed into the apparatus through the hopper C and
the particles of material sufficiently triturated flow out of the apparatus with the water
through the funnel a substantially as described.
b) A ball mill Chaving a hopper a and a feed water pipe arranged in such a
manner that after the material to be treated has been fed through the hopper a it
is triturated under a continuous stream of water flowing into the apparatus through
the pipe and runs out again finely triturated through the aforesaid hopper a,
substantially as described.
c) In combination with the apparatus set forth in claim (b) a second hopper used
exclusively for the purpose of feeding into the mill, the material to be treated whilst
the other hopper or funnel a serves exclusively for the discharge of the water and
particles of triturated material, substantially as described.
Dated this 31st day of May 1888.
WM. P. THOMPSON & Co.,
Agents for the Applicant.