Improvements in or Connected with Apparatus for Feeding Ore or other Material to Stampers.
Year: 1889

page_text: Date of Application, 28th June, 1889
Complete Specification Left, 15th Oct., 1889-Accepted, 16th Nov., 1889
PROVISIONAL SPECIFICATION.
Improvements in or Connected with Apparatus for Feeding Ore or
other Material to Stampers.
I, JEBUS BICKLE, of Hayle, in the County of Cornwall Engineer, do hereby declare
the nature of this Invention to be as follows:-
This Invention has reference to feeding ore and other like material to apparatus or
machinery used for crushing or pulverizing such material termed stampers.
Apparatus according to this Invention is constructed and adapted to feed or supply
ore or other material automatically to the Coffer or mortar Box of any type of
Stampers, by which means a regular supply of material can be delivered into the
pass." The quantity of material fed by the apparatus is regulated by the position of
the stamp head, and is mostly dependent on the amount of material crushed. The
coffer cannot in this way become over or under fed-
"
A special construction of apparatus adapted to feed ore to a stamp coffer and its
modus operandi is as follows:-
I provide the feeder with a hopper mounted or suspended in a frame over a movable
or swing shoot hanging in attachments which may be adjustable. A lever or bar is
pivoted to the stamper frame and attached to one of the lifters or other suitable moving
part and rises and falls or otherwise moves therewith. This lever is connected to a
series of levers preferably adjustable, star or ratchet wheels, a spring, and a buffer or
their equivalent mounted on the framing of the ore feeder, and so arranged that motion
can be given to the swing shoot only when a supply of ore is needed. In the event of
the coffer being full or overfed the feeding action is suspended.
The action is not imparted to the swing shoot by a percussive or any positive action
of the stamps lifter, but by means of a star wheel and spring or their equivalent.
When the supply or feed is getting low the spring is liberated from a state of tension
and urges the swing shoot forward; and its motion, being then suddenly arrested by
means of the adjustable banking buffer, the material is shot forward into the "pass."
The amount of feed is regulated by the inclination of the swing shoot and the range of
its motion; the action being regulated and controlled by the amount of ore or other
material in the coffer.
Dated this 27th dow of Lun 1000
COMPLETE SPECIFICATION.
Improvements in or Connected with Apparatus for Feeding Ore or
other Material to Stampers.
I, JEBUS BICKLE, of Hayle, in the County of Cornwall, 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 :-
This Invention has reference to feeding ore and other like material to apparatus or
machinery used for crushing or pulverizing such material, termed stampers.
Apparatus according to this Invention is constructed and adapted to feed or supply
ore or other material automatically to the coffer or mortar box of any type of stampers,
by which means a regular supply of material can be delivered into the "pass." The
quantity of material fed by the apparatus is regulated by the position of the stamp
head, and the amount of material crushed. The coffer cannot in this way become over
or under fed.

page_text: Figure 1 shows, in side elevation, an apparatus for stamping ore or other material,
with an automatically operated feeding device or arrangement according to my
invention applied thereto; and
Figure 2 is an end view, and Figure 3 is a plan, of the apparatus shown in Figure 1.
With reference to the drawings, A designates the coffer of the apparatus, and of
which a is the pass; B is the stamper frame; and C are a plurality of stamp lifters
arranged and working in said frame, the coffer A being common to the whole. D is
the feeding shoot supported, that is, suspended, by four adjustable chains, links, or the
like, d' E is the hopper, supported in the frame F; and G is the spring by which
the feed shoot D receives its forward motion.
The adjustable banking buffer of the shoot, ahove specified, is designated o; by its
adjustment, the position of the mouth of the shoot in relation to the "pass" a of the
stamp coffer A can be regulated.
Now, respecting the mechanism by which the shoot D is moved and put in position,-
for the discharging motion, I provide a lever actuated by a stamp lifter Cand
mounted at one end in a bracket supported by the frame B; a rod i connected at
one end to the end of said lever; a lever; connected at one end to the lower end of the rod i
and mounted at its other end on a shaft k; a pawl and ratchet wheel Z, mounted
respectively on the lever ; and shaft ; star wheels m on the shaft k; and levers n
mounted in the brackets fi and actuated at one end by the said star wheels, and at the
other ends, fitted under braces or staple plates d² on the shoot D. The lever his
forked at its outer end and provided with pins / the ends of which lie in an annular
recess in a sleeve c¹ mounted and fixed on one of the stamp lifters (). The end of the
rod is provided with an adjustable attachment at ¹ by which it is connected to the
slotted end of the ratchet lever j. The brackets f¹, it will be seen, carry the shaft k as
well as the levers n, and the shaft k carries the ratchet wheel l, one end of the lever ;,
and the star wheels m. The ends of the levers n which are actuated by these star

page_text: wheels are provided with adjustable pins n', which bear against the teeth of the wheels,
whilst the opposite arms of the levers work in connection with the sides of the feed
shoot D, by disposing thein under the staple plates d².
As previously stated, the supply of ore to the coffer is regulated according to the
amount of ore within it and under the operation of the stamper heads; that is to say,
the depth of material within the coffer and under the action of the stamper heads
controlls, directly, by the heads, the action of the feeding device, viz., the depth of
material in the coffer governs the limit of travel of the heads in their descent, and as
the depth of the material varies, so the travel of the stamp lifter varies, and accordingly
as the material stands low or high in the coffer, and the travel of the stamp lifters is
long or short, so the feeding mechanism is operated, or remains inoperative."
In action, when the supply of ore in the coffer A has become low and requires to be
replenished, the descending strokes of the lifters C are necessarily longer than when it
is full; it follows then that the down stroke of the lever will be increased, and cou-
sequently the stroke of the ratchet lever j becomes longer; if this stroke is sufficiently
long to cause the pawl to engage with a lower tooth of the ratchet wheel 1, upon the
next upstroke of the lifter the ratchet wheel 1, and also the star wheels m, will
receive a partial rotation, namely, one tooths length. In this movement the teeth of
the star wheels m will have depressed the upper arms of the levers n, by acting upon
the pins n thereof, and the shoot D will thereby be moved away from the coffer A,
and the spring G pressed back, but as soon as the pins n¹ leave or pass the summit of
one tooth and stand over the bottom of the next, the shoot is free to move forward, and
the spring & pressing upon the back of the shoot, gives it a rapid movement forward,
G
in which movement the banking buffers o come into contact with their stops on the
frame F, and the shoot is suddenly arrested, and the material in it shot forward into
the "pass" a of the coffer A. As soon as the material so fed into the coffer A stands
at such a height that the stamper heads do not fall sufficiently to permit the pawl jl
engaging with the tooth below it, of the wheel l, no motion is imparted to the feed
mechanism, and the supply of ore to the coffer ceases.
The rate of feed of ore to the coffer is regulated by the inclination of the feed shoot D,
and the range of its motion.
It will be observed, that, in feed apparatus operating as set forth, when the delivery
shoot or device is operated by the stamp lifter (or if operated by a separate device
operating in conjunction with the material in the coffer, or in a like or equivalent
manner), the movement is imparted to the feed device without shock or blow, with
the result that a smooth and quiet working is effected, and a consequent durable feed
actuating mechanism obtained.
Having now particularly described and ascertained the nature of my said Invention
and in what manner the same is to be performed, I would have it understood, that the
apparatus for feeding ore or other material to stamp coffers above set forth with
reference to the drawings, constitutes only an example of apparatus according to
my invention, and that therefore the invention is not confined to the exact arrange-
ment and combination of parts therein set forth, but is susceptible of modifications in
many ways; and also, equivalents of parts specified may be employed without departing
therefrom; and I declare that what I claim in respect of the herein described
invention is :-
1. Apparatus for feeding ore or other material to stampers in which the actuation
of the delivery mechanism is effected, and the supply of the said ore or material is
regulated, by the depth of the material in the coffer or crushing vessel thereof, and a
stamp, head or an equivalently arranged device operating in conjunction with the
material in the coffer having a mechanism connected or working with it, which
mechanism is adapted to engage with or actuate a mechanism on or connected with
said delivery mechanism, or not engage or actuate it, accordingly as the depth of the
material is small or great and the travel of the said stamp lifter-or its equivalent-is
greater or less; for the purposes set forth.

page_text: 2. Effecting the regulation of feed of ore or other material to stampers auto-
matically, through the depth of material in the coffer or crushing vessel thereof, a
stamp lifter (or an equivalently arranged device operating in conjunction with the
material in the coffer), and a mechanism connected or working with said lifter or its
equivalent operating in the manner, or substantially as in the manner herein
described.
3. In apparatus of the type or kind herein above referred to, the combination of a
shoot or delivery device by which the ore or material is delivered into the coffer; a
hopper or vessel adapted to hold ore or material in bulk, and by which said ore or
material is supplied to said delivery shoot or device; and mechanism, such as a pawl
or ratchet motion, or the like, adapted to be operated by the reciprocating motion of
the stamp lifter or equivalently operating device and to actuate the shoot or delivery
device operating substantially as in the manner herein described.
4. In apparatus of the kind or type herein above referred to, a shoot or delivery
device adapted to cause the discharge or supply of ore or material therefrom by being
suddenly arrested; also a shoot or delivery device arranged and operating as set forth
with reference to the Drawings.
5. In apparatus of the kind or type herein above referred to, a shoot or delivery
device in which the discharging motion is adapted to be operated by a spring or
weight for the purposes set forth.
6. In apparatus of the kind or type hereinbefore referred to, a delivery shoot or
device arranged or adapted to be operated from the motion of the stamp lifters through
a mechanism interposed between said lifters and shoot or delivery device, by which
mechanism the said shoot or delivery device is actually operated, substantially as and
for the purposes set forth.
7. In apparatus of the kind or type hereinbefore referred to, the combination with
the shoot or device thereof, of a spring, and a banking buffer, arranged and adapted
to operate substantially as set forth.
8. In apparatus of the kind or type hereinbefore referred to, the combination of a
coffer or crushing vessel, a feeding shoot-adapted to deliver ore or other material into
said coffer, a hopper-adapted to supply said ore or material to the shoot, a pawl and
ratchet and star or ratchet wheel mechanism by which said shoot is operated, and a
means or device arranged in connection with a stamp lifter, and operated thereby, by
which said shoot actuating mechanism is operated, substantially as set forth; and also
the construction and the combination of said parts or mechanism as set forth with
reference to the Drawings.
Dated this 14th day of October 1880
CHEESBROUGH & ROYSTON,
15, Water Street, Liverpool, Agents for the Applicant.