Improvements in and relating to Revolving Machines for Washing Minerals and other Materials.
Year: 1893

page_text: COMPLETE SPECIFICATION.
Improvements in and relating to Revolving Machines for Washing
Minerals and other Materials.
I, FREDERICK HOWARD BROOKE Oughtibridge Hall, Oughtibridge, near
Sheffield, in the County of York, Brick Manufacturer, 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 improvements in the construction of washers of the
cylindrical type such as are used for washing minerals and other like substances,
the object being to provide means by which the material after being washed
is raised from the water and delivered into a shoot or directly into a lurry or
the like.
My invention is illustrated in the annexed sheet of drawings which represents the
delivery end of a rotary cylindrical washer C, in a water tank T, provided with a
shoot S, discharging washed mineral into a lurry L.
The cylinder C, which may be parallel or tapered and to which being old 1 lay
no claim, may be for example six feet long by three fect six inches in diameter and
constructed of bars of iron arranged longitudinally, or of wire gauze or the like and
suitably supported by end rings or plates.
The cylinder is carried by a central shaft or axle A, which at the other end is
either provided with a pulley to be driven direct, or connected with gearing, by
which it may be caused to revolve.
It must fit closely to the ends of tank and run truly therewith to prevent particles
slipping between.
The shaft or axle A, is supported in bearings B, at each end of a water tank T, the
cylinder C, dipping into the water which finds a ready passage between the bars
and also at the ends into the interior of the cylinder, the spaces between the
bars also permit the escape of the dirt as it is washed off the minerals or other
substances.
The cylinder is provided with an internal spiral conveyer or worm W, which
revolves with the cylinder, and carries the material from one end to the other as the
cylinder revolves.
To the delivery end of the cylinder I fix an end plate P, having an opening O,
cut through it, and opposite this opening and at the end of the worm which
terminates at some little distance (say for example 12") from the end plate. I form
a chamber or scoop of a portion of the front plate P the plates P1, P2, and P³ which
latter is indicated by dotted lines, and reaches from front plate P to P¹.
Plate P¹, which is a continuation of the worm W, and is about ten inches from
front plate P partially supports plate P³, which is fixed diagonally, sloping from
the plate P', to the lower edge of the opening in the end plate P, so that when it
arrives at the position shown in the drawing, anything laid upon it would slide
off by its own gravity, and fall upon the shoot S, and thence into the lurry L.
The inner edge e of P', is curved upwards to prevent the material falling back
into the cylinder.
The parts P³ and P³, may with advantage have perforations to allow the escape
of water carried up with the material as the cylinder revolves, and which thus
washes and at each revolution automatically delivers a quantity of the washed
material

page_text: Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is :-
•
A revolving cylindrical washer for minerals and the like, having a delivery scoop
(or more than one) at one end of the internal worm, for raising and delivering the
washed material, constructed substantially as hereinbefore described and shown in
the drawing annexed hereto.
1000
ROBT. F. DRURY, C.P.A.,
Bank Buildings, George Street, Sheffield, Agent for Applicant.