Year: 1899

page_text: Date of Application, 10th Oct., 1899
Complete Specification Left, 11th June, 1900-Accepted, 6th Oct., 1900
I, WILLIAM HOSKING, of Norseman, Western Australia, Mine Manager, do
hereby declare the nature of this invention to be as follows:-
---
This invention of an automatic ore feeder is devised principally for use in con-
nection with stamper batteries, although it may be used in relationship with other
crushing machines.
The appliance is operated upon and by the up stroke or travel of the battery
stamper shank the object of which is to feed the ore right on to the false bottoms
and during the intervals between the blows of the stamper heads, so that the ore is
placed ready in position for to receive the straight fall of the blow.
The ore is first delivered into a hopper from whence it falls on to a horizontal
cylindrical barrel having end flanges. The barrel on its outer surface is divided
by walls which extend outwards so forming a series of radial compartments for.
receiving and discharging each feed quantity of ore.
The shaft which carries this feeding barrel also carries a ratchet which in prac-
tice would be attached to or made one with either flange of the barrel.
This ratchet is operated by a pawl which is pivotted to a bar that in its turn
is also pivotted at any convenient part. This latter bar at its outer end is suit-
ably connected to a vertical rod, which extends and is attached to another cross
bar; such latter cross bar is pivotted to a vertical post or to some convenient part
of the battery frame.
The inner end of this bar is constructed with an eye or fork. In order to
operate this latter cross bar a collar is placed upon the stamper shank at the
approved point which collar engages with the fork upon the upward travel of the
stamper.
The ore is fed into the radial compartments from whence it is discharged on
to a shoot which leads into the crushing chamber, and such compartments dis-
charge the ore in a predetermined quantity in a regular and intermittent manner.
In order to adjust the periods and volume of discharge the vertical connecting
rod is provided with a screw and so rendered adjustable. A further means of
adjustment being that the first motion transverse rod is formed with a series of
holes so that such connecting rod may be attached at any given point.
these means the travel of the pawl is regulated and consequently the quantity of
feed is controlled to any predetermined degree. These means of adjustment are
also provided for to reciprocate, with the variations in the lift of the stamper as
may be from time to time required.
Dated this 10th
1000
By

page_text: I, WILLIAM HOSKING, of Norseman, Western Australia, Mine Manager, 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:―
This invention of an automatic ore feeder is devised principally for use in con-
nection with stamper batteries, although it may be used in relationship with other
crushing machines
The appliance is by preference operated during and by the up stroke or travel
of the battery stamper shank the special object of which mode is to feed the ore
right on to the false bottom and during the intervals between the blows of the
stamper heads, so that the ore is punctually placed ready in position to receive
the straight and full fall of the blow.
The ore is first delivered from a hopper whence it falls onto a horizontal cylin-
drical barrel having end flanges. The barrel on its outer surface is divided by
walls which extend outwards so forming a series of radial compartments for receiv-
ing and discharging each feed quantity of ore. I however prefer to employ a
horizontal cylindrical barrel, preferably of a taper formation, into which the ore
is delivered. The shaft which carries this feeding barrel also carries a ratchet
by which means the barrel is rotated in an intermittent manner.
This ratchet is operated by a pawl which is pivoted to a bar that in its turn is
also pivotted at any convenient part as say loosely on the shaft of the feeding
barrel. This latter bar at its outer end is suitably connected to a vertical rod
which extends and is attached to another cross bar; such latter cross bar is pivotted
to a vertical post or to some convenient part of the battery frame.
The inner end of this bar is constructed with an eye or fork. In order to
operate this latter cross bar a collar is placed upon the stamper shank at the
approved point which collar engages with the fork at or upon the upward travel
of the stamper.
In order to adjust the periods and volume of discharge or feed of the ore to be
crushed the vertical connecting rod is provided with a screw jand so rendered
adjustable. A further means of adjustment being that the first motion transverse
rod is formed with a series of holes so that such connecting rod may be attached
at any given point. By these means the travel of the pawl is regulated and conse-
quently the rotation of the barrel and thus the quantity of feed is controlled to
any predetermined degree. These means of adjustment are also provided for to
reciprocate with the variations in the lift of the stamper as may be from time to
time required.
In the accompanying drawings which illustrate my invention:
Figure 1 is an elevation showing in a general manner the arrangement of the
appliance.
Figure 2 is an end view of the feeding barrel and its operative mechanism:
In these figures A is the taper feeding barrel which is mounted upon its shaft
as A2 working in the bearings as A3 which are suitably supported by the pedestal
framing A. As a further support to the barrel A. I employ the rollers A on
which the barrel may ride. B is the ratchet wheel which is keyed on the shaft A²
and such ratchet is operated by the pawl 132 that is hinged at B3 to the arm of
the lever C. This lever rides or is loosely pivotted by its eye C2 upon the main
shaft. At the outer end of this lever I attach a hinged vertical bridle piece as D
which is suitably connected to another similar bridle piece D2 by means of the

page_text: right and left threaded rod as D³ provided with the central block piece D' for
the purpose of adjustment.
The second bridle piece D2 is made with the extension bar as D5 and by its
eye D6 it is attached to the horizontal arm E at its upper end. This latter arm
is suitably pivotted at E and is formed with the adjustment holes E3 while at
its other end it is made of a bifurcated shape or with jaws E so as to sufficiently
embrace the stamper shank E5 of the battery a as shown and so engage with the
tappet F. Upon such stamper shank I place a collar as G at any point by means
of the set screw G2 and between such collar and fixed tappet F I place the spiral
spring G³ which cushions the lever end E* in its action.
The ore is fed from the hopper J and thence by the shoot J2 into the barrel A
and so by the tray J³ into the battery or crushing chamber J*.
The manner of using the invention is mainly as follows:-
The upward travel of the stamper shank 15 causes the tappet F to lift the
pivotted lever E and by.the further means of rod D³ and its connections the ratchet
lever C is operated and then by the pawl 12 the barrel A is partially revolved, to
the desired extent and in so far as is determined upon and by the travel of the
stroke and such stroke being controlled by the point at which the extension bar D5
is connected to the arm E at either of the adjustment holes E³.
It is obvious that the barrel also moves in fellowship with the ratchet and at
each movement it discharges the ore which is travelling down its inclined and
internal periphery as shown in Figure 1.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what
I claim is:-
1. In an automatic ore feeder the arrangement of a barrel which receives the ore
and which is intermittently rotated from the stamper battery or other crushing
machine so as to feed the ore directly to the said machine between the blows:
thereof, substantially as herein before described.
2. In an automatic ore feeder a barrel or cylinder into and from which the ore
is fed and discharged and such barrel having intermittent motion imparted to it
substantially as and for the purposes herein set forth and as illustrated in the
accompanying drawings.
3. In an automatic ore feeder a feeding barrel provided with a ratchet and
pawl mechanism which latter is operated by adjustable connections such as a
vertical rod made extensible and reducible in its length by means of a right and
left threaded connection substantially as and for the purposes herein set forth and
as illustrated in the accompanying drawings.
4. In an automatic ore feeder a pivotted arm as E for engaging with the
stamper shank and provided with a spiral cushion as G³ and such arm having holes
for the adjustment of the stroke of the ratchet mechanism substantially as and
for the purposes herein set forth and as illustrated in the accompanying drawings.
5. The general arrangement and combination of an automatic ore feeder con-
sisting of a barrel rotated in an intermittent manner by ratchet mechanism which
is in its turn operated by the upward stroke of the stamper shank by the agency
of a pivotted arm which latter connects to such ratchet mechanism by means of an
adjustable connection rod the whole substantially as and for the purposes herein
set forth and as illustrated in the accompanying drawings.
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, 'Agents for the Applicant.