IMPROVEMENTS IN THE CONSTRUCTION AND ARRANGEMENT OF MACHINERY FOR STAMPING AND REDUCING TO POWDER MINERAL AND OTHER HARD SUBSTANCES."
Year: 1880

page_text: LETTERS PATENT to Charles James Appleby, of Cannon Street, in the City of
London, for an Invention of "IMPROVEMENTS IN THE CONSTRUCTION AND
ARRANGEMENT OF MACHINERY FOR STAMPING AND REDUCING TO POWDER
MINERAL AND OTHER HARD SUBSTANCES."
PROVISIONAL SPECIFICATION left by the said Charles James Appleby at
the Office of the Commissioners of Patents on the 12th January 1880.
"IMPROVE-
CHARLES JAMES APPLEBY, of Cannon Street, in the City of London.
MENTS IN THE CONSTRUCTION AND ARRANGEMENT OF MACHINERY FOR STAMPING
AND REDUCING TO POWDER MINERAL AND OTHER HARD SUBSTANCES."
This Invention relates to stamping machinery used for stamping mineral
substances, such as quartz, or metallic ores, and it has for its object improved
methods of constructing and arranging the parts of such machinery so that it is
readily put together, whilst its several parts are of moderate weight and easily
portable if desired, and those parts which are most liable to wear are readily
replaceable.
I take ordinary stamp heads attached to the lower ends of vertical spindles or
shafts which are raised to a sufficient height, and then allowed to fall by means
of cams or other suitable devices actuated by steam, water, or other power in the
ordinary well understood way. These stamp heads are arranged to fall upon
blocks fitted in boxes into which the material to be pulverized is to be fed. Each
of these boxes may be arranged to receive one or more stamp heads as may be
desired, and I construct them in the following manner :-I make the lower part of
the box of sufficiently tough metal, preferably cast steel, the bottom being of
considerable thickness, and the sides being thinner and preferably tapering to still
less thickness at their upper part, where the box has consequently a larger area of
opening in plan, and where a horizontal flange is formed upon which is bolted or
fixed a corresponding flange at the lower edge of the upper part of the box.
I make this upper part of the box preferably of wrought iron plates, an opening
being formed at one of its sides connected with a hopper through which the
material which is to be pulverized is supplied, and an angle iron being rivetted
round the inside of the upper edge of the box.
On one or both sides of the lower part of the box described I make an opening
to which is fitted a moveable frame containing perforated plates or gauze, either

page_text: vertical or inclined, through which the material when reduced to a sufficiently small
size is discharged, and carried away by spouts or shoots attached to supports
formed upon the boxes, the process being aided by the addition of water which is
supplied to the box.
Upon the bottom of the box I arrange inside a moveable plate or anvil block,
preferably of cast steel under each stamp head.
The apparatus constructed as described being composed of separate pieces which
can be readily removed or replaced is very portable, and can conveniently be fixed
and used in positions where such stamping machinery as ordinarily constructed
cannot be taken or fixed
In order to provide a suitable foundation for the bottom of the lower part of the
stamp box to rest upon, I prefer to use timber piles of sufficient size, and driven for
a sufficient distance into the ground to withstand the blows of the stamping
machinery, and upon the heads of these piles which are made flat or level I fit one
or more horizontal slabs or plates of wrought iron, to which the lower boxes
already described are firmly attached by bolts or rivets passing through the bottom
of the box, or through lugs cast upon the box, and through the several slabs or
plates of wrought iron.
In order to retain the slabs carrying the stamp boxes as described in their
proper position upon the heads of the piles, I use side plates preferably of wrought
iron embracing both the slabs and the piles, and fixed by bolts or rivets passing
through them and through the latter, and in this way I obtain a very solid and
firm foundation for the stamping machinery, whilst at the same time each of the
several parts comprising it is of moderate weight and easily carried, and the whole
are readily and simply put together and adjusted and fixed in their places when
required.
Each stamp head may fall in a separate box, or the stamps may be arranged in
groups of two or more, one box being provided to receive each such group.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Charles James Appleby in the Great Seal Patent Office on the 12th
July 1880.
CHARLES JAMES APPLEBY, of Cannon Street, in the City of London. " IMPROVE-
MENTS IN THE CONSTRUCTION AND ARRANGEMENT OF MACHINERY FOR STAMPING
AND REDUCING TO POWDER MINERAL AND OTHER HARD SUBSTANCES."
My Invention relates to stamping machinery used for stamping mineral sub-
stances, such as quartz or metallic ores, and it has for its object improved methods
of constructing and arranging the parts of such machinery so that they are readily
put together, whilst the several parts are of moderate weight and easily portable,
and those parts which are most liable to wear are readily replaceable. I take stamp
heads of the kind ordinarily heretofore used attached to the lower ends of vertical

page_text: spindles or shafts which are raised to a sufficient height and then allowed to fall
by means of cams or other suitable devices actuated by steam, water, or other
power, in the ordinary well understood way. I arrange these stamp heals so that
they fall upon heavy blocks fitted in boxes, into which the material to be pulverized
is fed. Each of these boxes may be arranged to receive one or more stamp_heads,
as may be desired, and I construct them in the following novel manner:-I make
the lower part of the box of sufficiently tough metal, preferably cast steel, the
bottom being of considerable thickness, and the sides being thinner and in some
cases tapering to still less thickness at their upper part, where the box has con-
sequently a larger area of opening in plan, and upon which is bolted or otherwise
fixed the lower edge of the upper part of the box. I make this upper part of the
box preferably of wrought iron plates, and rectangular in plan, an opening being
formed at one of its sides connected with a hopper through which the material
which is to be pulverized is supplied, and an angle iron being rivetted round the
inside of its upper edge, on which a loose plate may be placed through which the
stamp works.
On one or both sides of the lower part of the box described I make an opening,
to which is fitted a moveable frame containing perforated plates or gauze, either
vertical or inclined, through which the material, when reduced to a sufficiently
small size, is discharged and carried away upon tables or by spouts or shoots
attached to supports formed upon the boxes, the process being assisted by the
addition of water which is supplied to the box. Upon the bottom of the box I
arrange, inside, a moveable plate or anvil block, preferably of cast steel, under each
stamp head. Where auriferous quartz is being stamped mercury may be supplied
for amalgamation.
In order to provide a suitable foundation for the bottom of the lower part of
the stamp box to rest upon I prefer to use timber piles of sufficient size and driven
for a sufficient distance into the ground to withstand the blows of the stamping
machinery, and upon the heads of these piles, which are made flat and level, I, in
some cases, fit one or more horizontal slabs or plates of wrought iron or steel, to
which the lower boxes already described are firmly attached by bolts passing
through the bottom of the box or through lugs cast upon the box, and through the
several slabs or plates.
In order to retain the slabs, if used, carrying the stamp boxes, as described, or
the stamp boxes themselves in their proper position upon the heads of the piles I
use side plates, preferably of wrought iron, embracing both the slabs and the piles,
and fixed by bolts or rivets passing through the latter, and in this way I obtain
a very solid and firm foundation for the stamping machinery, whilst at the same
time each of the several parts composing it is of moderate weight and easily
portable, and the whole are readily and simply put together and adjusted and fixed
in their places when required.
Each stamp head may fall in a separate box, or the stamps may be arranged in
groups of two or more, one box being provided to receive each such group. The
accompanying Drawing is in illustration of my Invention. Figure 1 is a transverse
section, and Figure 2 a horizontal section of stamping machinery to be used with
two stamps; Figure 3 is a front view of two such sets of machinery containing
four stamps, arranged side by side. A is the lower box having a thick bottom B,
upon which the anvil blocks C, C, are supported; D represents the tapering sides
of the box; E, E, are the openings and attachments for gratings or perforated
plates or wire gauze; and F, F, supports, to which are attached shoots or spouts
for conveying away the stamped material; G is a flange, to which is bolted the
corresponding flange H upon the upper light box I, which has an opening at K
provided with the hopper L; and M is an internal flange, through which work
the stamps (not shewn in the Drawing); N, N, represent timber piles having
flat heads, upon which the wrought iron plates O, O¹, are carried which support
and are bolted to the lower box A, as shewn at P, P; and R represents bars or
plates surrounding the plates 0, 0¹, and bolted to them.

page_text: The apparatus constructed as described being composed of separate pieces, which
can readily be removed or replaced is very portable, and can conveniently be fixed
and used in positions where such stamping machinery as ordinarily constructed
cannot be taken and fixed.
In some cases, especially where heavy stamps are to be used, I use a modification
of the arrangement above described, as shewn in Figure 4, on Sheet 2 of the
Drawings, in cross section. A is the lower part of the box, in which the stamp B
works upon the anvil block C. The part A is made very strong and heavy, as
shewn, and into its upper part, at D, is fitted the rectangular wrought iron box E,
within which is fitted a moveable lining of steel plates at F, which, as they wear
away, can be readily removed and replaced. Upon the upper part of the box E is
supported the thinner wrought iron box G, having at one side the hopper H,
through which the material is fed to the machine, and secured by a wrought iron
external band and vertical bolts or other convenient means. Openings are made
at I through both the box E and the internal steel lining plates F, to which are
fixed the perforated plates or gauze at K. Apparatus constructed in this way is
very strong and substantial, but the separate parts of which it is composed are
comparatively light and portable.
Having now described my Invention, and the manner in which it is to be per-
formed I claim, first, the lower box having a thick bottom supporting anvil blocks,
and having sides tapering outward and a horizontal flange round its upper edge,
one or more openings containing gratings or perforated plates, and supports for
carrying shoots to convey away the stamped material, substantially as described
and shewn in the Drawing.
Also, the method of constructing the boxes for stamping apparatus in two or 2
more parts, arranged above each other, the lower parts being heavy to receive the
blows and the upper parts lighter to retain the materials, substantially as described
and shewn in the Drawings; also, the combination with stamp boxes so constructed
of foundations consisting of two or more thicknesses of wrought iron or steel
plates, each of moderate weight, substantially as and for the purpose described and 3
shewn in the Drawings; also, the method of lining the boxes within which the
stamps work with moveable steel plates, substantially as and for the purpose
described and shewn; also, the combination with the stamp boxes constructed in
the manner described, of steel anvil blocks and stamp heads, substantially as
described.
Also, the general arrangement of the several parts of the apparatus, substantially
as and for the purposes described and shewn.
In witness whereof, I, the said Charles James Appleby, have hereunto set
my hand and seal, this 12th day of July, in the year of our Lord One
thousand eight hundred and eighty.
C. J. APPLEBY. (L.S.)