Year: 1899

page_text: follows:-
My invention relates to a new method of concentrating tin or other metallic ore--
stuff having for its object the construction of machinery the use of which will lessen
labour cost. I may construct the same of any kind of material which shall to me
seem fit.
I attain these objects by the mechanism in the accompanying drawings in
which
Fig. 1 is an elevation of my concentrator.
Fig. 2 is a plan of the same.
Fig. 3 is a vertical section through line X Y of plan (Fig. 2.)
Fig. 4 is a plan of the bed alone.
Figs. 5 & 6 show means by which the arms may be attached to the case.
Fig. 7 is an elevated section of a large wooden tub called a kieve together with
some machinery for the suspension and driving of a stirrer in the kieve.
Fig. 8 is a plan of that which is sectioned in Fig. 7.
In Fig. 1 is the launder by which the pulp is fed on, is a well or receiver which
delivers uniformly with the exception of one sixth or some fraction of its circumfer-
ence the received pulp on to the bed below c is a wood bed over which travels the
water containing the orestuff in suspension and upon which some of the ore (the
crop or most valuable) is deposited. After leaving the bed the water containing
the undeposited ore stuff is borne away by launder d.
The bed revolves with the case : the driving force to be applied at cog wheel e.
The well or receiver is stationary consequently seeing that water is only delivered
from or some fraction of its circumference a portion of the bed has no water travel-
ling upon it.
This portion will reveal the deposited matter at the same time rendering its
removal convenient.
At this part of the bed and near the wall a stream of clear water
brought from
the launder f above, through pipe g. This stream which may be regulated by stop-
cock P removes the deposit washing it down the bed into launder h which takes-it
away. The movable tube n attached to launder f is for the purpose of washing away
the ore from which the tin has been extracted. As shown in Fig. 2 the launder
which takes the water from the whole bed has three outlets h, hd partitions being
so placed within as to send the best through launder . and the remainder through
launders d, h¹. m in Fig. 1 is an arrangement which may be necessary to cleanse the
deposit or assist in removing it. The iron well b, Fig. 3, is somewhat like'an
inverted cone having a flanger at the base, being stationary it rests on a hollow
cylindrical iron pillar j which is fixed in an iron blocks at the foot. The pillar or
"

page_text: stem has two collars one at t the foot inside the brass in which works the revolving
case : another t, about 2 feet above that against which works a second brass 1, this
brass revolves with the case. In Fig. 4, every piece of wood u forms a segment the
bed being a series of circles. Should such be requisite the timber may be placed
longitudinally as shown on the left hand side of the fig.
It may be necessary to cover the bed with sheet indiarubber or other material in
which case such will be done. Fig. 5 is a sliding flange being bored near the top in
4 places w. There are corresponding holes.bored in the case by which the flange
may be raised or lowered with the exception of the movable action, this flange
resembles that shown in Fig. 1, . Fig. 6 shows sockets into which the arms are
placed and bolted.
The concentrates from Fig. 1 are conveyed through launder h into the kieve in
Fig. 7. For a while it acts as a depositing pit, when the kieve is about half full of
ore stuff the concentrates are directed through a launder o branching from launder h
(Fig. 2) into an adjoining kieve. The stirrer is now set in motion and in a little
while by causing the water to whirl round it will get the whole deposit in
suspension.
The separation in this case depends on the high specific gravity of the ore to be
extracted. The most valuable grains will pass first to the bottom leaving the poorer
on the top. By some packing arrangement the particles set well together excluding
the water which is drawn off. The orestuff being divided into layers according to
quality by the person who has to remove it from the kieve.
The connections of the stirrer are made as light as possible being tightened on the
kieve by the thumb screws at both ends of the cross bars supporting it. The stirrer is
driven by an endless chain which revolves with the main or fixed shaft above.
There are collars on the stirrer shaft to keep it in position.
The case resembles a truncated cone resting on a square plate to which it is
bolted.
If required there will be used instead of the brass shown at the foot of the case in
Fig. 3 ball bearings.
Dated this 1st day of May 1800
Improvements in Machinery for Concentration of Tin or other
Metallic Orestuff.
I, JOSEPH RULE, of Roskear Terrace, Tucking Mill, near Camborne, in the County
of Cornwall, Tin Dresser, 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:-
:
My invention relates to a new method of concentrating tin or other metallic ore
stuff having for its object the construction of machinery the use of which will lessen
labour cost. I may construct the same of any kind of material which shall to me
seem fit. I attain these objects by the mechanism in the drawings accompanying
the Provisional Specification in which
Fig. 1 is an elevation of my concentrator.
Fig. 2 is a plan of the same.
Fig. 3 is a vertical section through line X Y of plan (Fig. 2.).
Fig. 4 is a plan of the bed alone.
:
་
JA
I
Figs. 5 & 6 show means by which the arms may be attached to the case.
Fig. 7 is an elevated section of a large wooden tub called a kieve together with
some machinery for the suspension and driving of a stirrer in the kieve.

page_text: Fig. 8 is a plan of that which is sectioned in Fig. 7.
In Fig. 1a is the launder by which the pulp is fed on, b, is a well or receiver
which delivers uniformly with the exception of one sixth or some fraction of its
circumference the received pulp on to the bed below, c is a wood bed over which
travels the water containing the ore stuff in suspension and upon which some of the
ore (the crop or most valuable) is deposited. After leaving the bed the water. con-
The bed revolves with
taining the undeposited ore stuff is borne away by launder d.
the case the driving force to be applied at cog wheel e.
The well or receiver b is stationary consequently seeing that water is only delivered
from or some fraction of its circumference a portion of the bed has no water travelling
upon it..
This portion will reveal the deposited matter at the same time rendering its
removal convenient.
At this part of the bed and near the well a stream of clear water is brought from
the launder f above through pipe g. This stream which may be regulated by
stop cock p removes the deposit washing it down the bed into launder h which takes
it away. The moveable tube n attached to launder f is for the purpose of washing
away the ore from which the tin has been extracted. A's shewn in Fig. 2 the launder
which takes the water from the whole bed has three outlets h, h¹, d, partitions
being so placed within as to send the best through launder and the remainder
through launders dh'm in Fig. 1 is an arrangement which may be necessary to
cleanse the deposit or assist in removing it. The iron well b Fig. 3 is somewhat like
an inverted cone having a flange at the base, being stationary it rests on a hollow
cylindrical iron pillar j.which is fixed in an iron blocks at the foot. The pillar or
stem has two collars one t at the foot inside the brass in which works the revolving
case k, another t, about two feet above that against which works a second brass, l,
this brass revolves with the case.
In Fig. 4 every piece of wood u forms a segment the bed being a series of circles.
Should such be requisite the timber may be placed longitudinally as shewn on the
left hand side of the fig.
It may be necessary to cover the bed with sheet india rubber or other material in
which case such will be done. Fig. 5 is a sliding flange being bored near the top
in 4 places w. There are corresponding holes bored in the case by which the flange
may be raised or lowered with the exception of the movable action, this flange
resembles that shewn in Fig. 1, . Fig. 6 shews sockets into which the arms are
placed and bolted.
The concentrates from Fig. 1 are conveyed through launder h into the kieve
in Fig. 7. For a while it acts as a depositing pit, when the kieve is about half full,
of ore stuff the concentrates are directed through a launder o branching from
launder h (Fig. 2) into an adjoining kieve. The stirrer is now set in motion and in
a little while by causing the water to whirl round it will get the whole deposit in
suspension.
The separation in this case depends on the high specific gravity of the ore to be
extracted. The most valuable grains will pass first to the bottom leaving the poorer
on the top By some packing arrangement the particles set well together excluding
the water which is drawn off. The ore stuff being divided into layers according to
quality by the person who has to remove it from the kieve.
The connections of the stirrer are made as light as possible being tightened on the
kieve by the thumb screws at both ends of the cross bars supporting it. The stirrer
is driven by an endless chain which revolves with the main or fixed shaft above.
There are collars on the stirrer shaft to keep it in position.
The case resembles a truncated cone resting on a square plate to which it is
bolted.
If required there will be used instead of the brass shewn at the foot of the case in
Fig. 3 ball bearings.
Having now particularly described and ascertained the nature of my said inven-

page_text: tion and in what manner the same is to be performed I declare that what I
claim is :-
a
(1) The combination upon a frame work of machinery for concentrating tin or
other metallic ore stuff substantially as herein described and according to the
drawings accompanying the Provisional Specification.
(2) The arrangement of the wood in segments for the bed substantially as herein
described and according to the drawings accompanying the
Specification.
•
Provisional