Improvements in or applicable to Appliances for: Treating Crushed "Mineral Ores.
Year: 1894

page_text: Date of Application, 22nd Aug., 1.894
Complete Specification Left, 22nd May, 1895-Accepted, 13th July, 1895
Improvements in or applicable to Appliances for: Treating Crushed
"Mineral Ores.
We LOUIS FERGUSON GOWANS of the North Western Hotel, Johannesburg,
Transvaal, South-Africa; Mines Manager;andr EDMUND GARDNER APPLEBKI of
22.Waalbrook, London, E.C., Engineer, do. hereby declare the nature of this
invention to be as follows:-
"Our said invention relates to improvements in or applicable to appliances.for
treating and manipulating pulverized mineral ores when subjecting: themetox the
action of cyanide of potassium or other reagents or solvents used in the process of
extracting the contained metal-or-metals.
'According to our said invention we use a vessel of convenient shape and capacity
which in some cases may be a fixture while in vothers titsmay ber mountedlion a
carriage with wheels for transport. In either case the vessel may be provided
with means for rotation or for partial rotation on oscillation about its axis of
suspension.
✓ At the lower part of the vessel we provide a filter (preferably formed of suitable
fibrous materials arranged in alternate layers with gratings ori-perforated plates)
for retaining the crushed ore in the vessel. Below and communicating with the
filter we fix a nipple or other convenient means for permitting then filten to be
readily connected with or disconnected from the system of pipes .hereinafter
described.
"The said pipes consist by preference of a transverse pipe having two stops.cocks
atid' also of two longitudinal pipes in communication withithe ends of the transverse
pipe. The object of the two cocks in the transverse pipe isto open or close
communication with either of the longitudinal pipes as may be desired.
"The vessel having been supplied with the pulverised ore the solution, to whose
action it is to be subjected is added and after it has been allowed to percolate
through the ore the before mentioned transverse piperis.connected to the filter and
on one of the cocks-being opened the metalliferous solution.passes awaylalong one
of the longitudinal pipes to the receptacles provided for its subsequenty-treatment
by precipitation or otherivise:
The other longitudinal pipe is provided for. use when it is desired-to-subject
the ore to the action of another reagent. and to convey the resulting solution
elsewhere.
In lieu of a transverse pipe having two cocks.a single two- or multiple-way,cock
may be used for directing the solution in any desired direction.
In some cases the filter and nipple are attached to, ordinany, mines.trucks on the
supporting carriages of which we fix the before mentioned system: of pipes. In
such case the longitudinal pipes of adjacent trucks are connected: together soms to
form continuous mains or conduits along which the solution: from some or all of the
trucks in the train is conveyed-away for further treatment. When the solution
bas run off the longitudinal pipes are disconnected. and the residual vore having
Been discharged the process can be repeated:.
·Dated this 18th³ day of August^1894.

page_text: Improvements in or applicable to Appliances for Treating Crushed
Mineral Ores.
We LOUIS FERGUSON GOWANS. of North Western Hotel, Johannesburg,
Transvaal, South Africa, Mine Manager, and EDMUND GARDNER APPLEBY of
22 Walbrook, London, E.C. 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 :-
Our said invention relates to improvements in or applicable to appliances for
treating and manipulating pulverized mineral ores when subjecting them to the
action of cyanide of. potassium or other reagents or solvents used in the process of
extracting the contained metal or metals.
According to our said invention we use a vessel of convenient shape and capacity
which in some cases may be a fixture while in others it may be mounted on a
carriage with wheels for transport. In either case the vessel may be provided
with means for rotation or for partial rotation or oscillation about its axis of
suspension.
For more fully describing our said invention we will hereinafter refer to the
accompanying drawings in illustration thereof.
In the accompanying drawings
Figure 1 is a side elevation and Figure 2 is an end view of a vessel mounted on
wheels for transport.
Referring to Figures and 2 we place in the lower part of the vessel A a
filter a of suitable fibrous material or other filtering medium.arranged in alternate
layers with gratings or perforated plates for retaining the crushed ore in the vessel.
Communicating with the lower part of the filter is a pipe 6 having a nipple a¹ or
other convenient means for permitting the filter to be readily connected with or
disconnected from the system of pipes hereinafter described. A stop cock is
applied at a to prevent the exit of the liquor from the filter until such connection
is made. The system of pipes referred to is shown in Figure 2 and consists by
preference of a transverse pipe c having two stop cocks c'c and of two longitudinal
pipes in communication with the opposite ends of the transverse pipe c.. The
object of the two cocks in the transverse pipe c is to open or close communication
with either of the longitudinal pipes cc as may be desired.
The pulverized ore to be treated is put in the vessel A, the solution to whose
action it is to be subjected is added, and after a sufficient time has elapsed for the
solution to act on the material and to percolate through, the connection is made by
means of a flexible or other pipe between the pipe b and the transverse pipe c.
one of the cocks c' or ' being then opened the metalliferous solution passes away
along the corresponding longitudinal pipe to the receptacle provided for its
subsequent treatment by precipitation or otherwise.
On
The two longitudinal pipes c³ care provided so that if necessary the material
may be treated with another quantity of the same re-agent or with another
re-agent and the resulting liquid be conducted to a separate receptacle.
In lieu of a transverse pipe c. having two cocks a single two or multiple way
cock may be used for directing the solution in any desired direction.
In some cases the lower conduit pipes are stationary and the transportable
vessel A is brought to such stationary pipes before the liquid is drawn off. In
other cases the conduit pipes are carried by the carriage B on which the vessel A
is mounted and the longitudinal pipes of adjacent trucks in a train are connected
together so as to form continuous mains or conduits along which the solution from
some or all of the trucks in the train is conveyed away for further treatment.

page_text: When the solution has run off the longitudinal pipes are disconnected and the
residual ore having been discharged the process can be repeated.
For facilitating the emptying of the vessel A it is mounted as a tip wagon on
journals d d carried by the uprights d' d' on the travelling carriage B.
In some cases the treated material may be removed in other ways than by
tipping the vessel as for instance by digging out and the shape of the vessel and
its supports may be varied to suit the particular requirements of each case.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed we declare that what we
claim is :-
1. The means substantially as hereinbefore set forth and shown for subjecting
minerals to the action of solvents or re-agents and drawing off and transferring the
latter for subsequent treatment.
II. A stationary or transportable vessel having a filter in its lower part conduit
pipes cocks and connections substantially as and for the purpose set forth and
shown.
III. A rotatable or partially rotatable vessel having a filter in its lower part, in
combination with transverse and longitudinal pipes for treating mineral ores with
re-agents or solvents for separating the latter from the treated material and
conveying them to other receptacles substantially as set forth.
Dated this 01 de
1005
APPLEBY BROS.,
22 Walbrook, E.C., Agents for Applicants.
APPLEBY BROS.,
22 Walbrook, E.C., Agents for Applicants.