ferous Soil, Gold Quartz, and other Substances.
Year: 1885

page_text: ferous Soil, Gold Quartz, and other Substances.
We HENRY JOSEPH WILBERFORCE RAPHAEL, Merchant and JAMES SYME
Engineer both of Du Toits-pan in the District of Kimberley Cape Colony
South Africa but at present residing at 73 Portsdown Road Maida Vale in the
County of Middlesex do hereby declare the nature of said Invention for "APPA-
RATUS FOR DISINTEGRATING CRUSHING OR PULVERIZING DIAMONDIFEROUS SOIL,
COLD QUARTZ AND OTHER SUBSTANCES."
Our Invention has for its object to provide an apparatus especially suited for
disintegrating crushing or pulverizing diamondiferous soil such for example as that
known in South Africa as blue ground but it is also applicable for disintegrating
crushing or pulverizing other substances such for example as gold, quartz, chemical
substances cereals or the like.
An apparatus constructed according to our Invention consists of a casing with a
ribbed or toothed and preferably conical interior (the larger diameter upwards)
and in this is mounted a revolving helical or screw like crusher formed of a casting
with a thread or worm on its exterior, the outer portion of the thread or worm at
its lower part corresponding in figure to the lower portion of the interior of the
casing so as to constitute a screw like passage for the material, the form of the
crusher at the upper part being such as to leave a space constituting a hopper
for the reception of the material to be crushed-The sides of the crusher are
provided with yielding pieces which are sufficiently rigid to crush the soil or
quartz or the like as it passes through the helical passage but which yield to
exceptionally hard substances so that the apparatus is especially adapted for use in
crushing diamondiferous soils without injuring the diamonds-The matter to be
treated passes through the helical passage formed by the screw or thread of the
crusher between itself and the casing and is disintegrated crushed or pulverized in
its passage by the aforesaid yielding pieces and falls from the apparatus through
suitable openings provided for the purpose in or towards the end of the apparatus.
A ring may be provided at the lower part of the casing to constitute a check to
prevent the matter being passed from the apparatus until properly reduced.
The yielding pieces aforesaid may consist of strong spring projections somewhat
like teeth secured at one end to the crusher their normal position being such that
their outer ends bear on the interior of the casing. These spring projections are
opposite recesses in the crusher into which recesses the said projections pass when
a very hard substance passes between them and the casing.
100K

page_text: ferous Soil, Gold Quartz, and other Substances.
We HENRY JOSEPH WILBERFORCE RAPHAEL Merchant and JAMES SYME
Engineer both of Du Toils-pan in the District of Kimberley Cape Colony
South Africa but at present residing at 73 Portsdown Road Maida Vale in the
County of Middlesex 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 :—
"
Our invention has for its object to provide an apparatus especially suited for
disintegrating crushing or pulverizing diamondiferous soil such for example as that
known in South Africa as blue ground" but it is also applicable for disintegrating
crushing or pulverizing other substances such for example as gold quartz chemical.
substances cereals or the like.
We will describe our Invention with reference to the accompanying drawing
which represents details of an apparatus constructed according to our Invention
which consists of a casing A of cast iron, shewn in vertical section in Figure 1 and
part plan in Figure 2, the interior of which casing is fitted with a ribbed or
toothed lining B of steel or other suitable material and preferably conical in the
interior (the larger diameter being upwards) In this conical lining is mounted a
revolving helical or screw like crusher C. shewn in elevation and vertical section
respectively in Figures 3 and 4 This crusher is cast with a thread or worm a on
its exterior the outer portion of the said thread or worm at its lower part corre-
sponding in diameter to the lower portion of the interior of the lining B the spaces
between the thread a constituting a screw like passage for the material being
operated upon to pass through. The form of the crusher at the upper part is such
as to leave a space between it and the lining B to constitute a hopper for the
reception of the material to be crushed. The sides of the crusher are provided
with yielding pieces c which are sufficiently rigid to crush the soil or quartz or the
like as it passes through the helical passage but which yield to exceptionally hard
substances such as diamonds and the like so that the apparatus is especially
adapted for use in crushing diamondiferous soils without injuring the diamonds.
Rotary motion is given to the crusher C by suitable gearing and the matter to be
treated passes through the helical passage b formed by the screw or thread of the
said crusher between itself and the lining B and is disintegrated crushed or
pulverized in its passage by the aforesaid yielding pieces c and falls from the appa-
ratus through openings d provided for the purpose in or towards the bottom or lower
end of the crusher C as shewn in Figures 3 and 5 A ring e may be provided at
the lower part of the casing as shewn in Figure 1 against which the lower end of
the crusher C rotates and which constitutes a check to prevent the matter being
passed from the apparatus until properly reduced The yielding pieces c may
consist of strong spring projections somewhat like teeth secured at one end to the
crusher as shewn in Figures 6 and 7 their normal position being such that their
outer ends bear on the interior of the lining B or they may be of a form similar to
that shown in Figure 8 and made to bear at both their ends on the body of the

page_text: crusher C.-These spring projections are arranged opposite recesses f in the
crusher C into which recesses the said projections enter when a very hard
substance passes between them and the lining B-Figures 9 and 10 represent
in plan, parts of the upper and lower brackets respectively, in which the axle
the crusher C rotates.
of
Although I have illustrated the apparatus as being arranged to work in a vertical
position it is obvious that it may be arranged to work horizontally or at any
suitable angle.
Having now particularly described and ascertained the nature of our said
Invention and in what manner the same is to be performed we declare that what
we claim is
First. In apparatus for disintegrating crushing or pulverizing diamondiferous
soil gold quartz and other substances the combination with an outer vessel or
casing of a revolving helical or screw like crusher constructed and arranged to
operate substantially as herein before described and illustrated by our drawings.
Second. The revolving helical or screw like crusher fitted with yielding pieces
constructed and arranged to operate in an outer casing or vessel substantially in
the manner and for the purpose hereinbefore described and illustrated by our
drawings.
Third. The general combination of parts constituting an apparatus for disin-
tegrating crushing or pulverising diamondiferous soil gold quartz and other
substances substantially as hereinbefore described and illustrated by our drawings.
Dated this 13th day of October 1885