IMPROVEMENTS IN MACHINERY FOR PULVERIZING ORES AND EXTRACTING METALS.THEREFROM, ADDEFOLDED TO REPARING STONES
Year: 1862

page_text: LETTERS PATENT to William Southwood, of Kensington, in the County
of Middlesex, Civil Engineer, for the Invention of "IMPROVEMENTS IN
MACHINERY FOR PULVERIZING ORES AND EXTRACTING METALS.THEREFROM,
ADDEFOLDED TO REPARING STONES"
PROVISIONAL SPECIFICATION left by the said William Southwood at the
Office of the Commissioners of Patents, with his Petition, on the Sth
May 1862..
I, WILLIAM SOUTHWOOD, of Kensington, in the County of Middlesex, Civil
Engineer, do hereby declare the nature of the said Invention for "IMPROVE-
MENTS IN MACHINERY FOR POLVERIZING ORES AND EXTRACTING METALS THEREFROM,
PART OF WHICH IS APPLICABLE TO BREAKING STONES," to be as follows:-
I have a strong iron or other frame, upon which I mount an oscillating
lever or breaker, which lever or breaker I cause to move by an eccentric or
cam working in a closely packed portion of it; when this lever is in operation
it partly pulverizes the ore, and on combination with rollers the pulverizing is
accomplished; when the ores or stones are not required to be broken very fine

page_text: the rollers are not necessary. I use a riddle for separating the finest portion
of the ore before it passes into the rollers. Also amalgamators or separators
of the metals from the ores made of wood, metal, or other material, with
recesses for holding mercury or any other matter capable of being used in the
extraction of gold, and I employ tappets for the purpose of forcing or pressing
the ores into the mercury in its passage through the machine. I purpose
breaking down the ores in combination with water and sometimes dry. The
levers or breakers before mentioned, and portions of the strong iron frame,
I make movable if necessary.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said William Southwood in the Great Seal Patent Office on the
8th November 1862.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, WILLIAM
SOUTHWOOD, of Kensington, in the County of Middlesex, Civil Engineer, send
greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Eighth day of May, in the year of our Lord
One thousand eight hundred and sixty-two, in the twenty-fifth year of Her
reign, did, for Terself, Her heirs and successors, give and grant unto me, the
said William Southwood, Her special licence that I, the said William South-
wood, my exccutors, administrators, and assigns, or such others as I, the said
William Southwood, my executors, administrators, and assigns, should at any
time agree with, and no others, from time to time and at all times thereafter
during the term therein expressed, should and lawfully might make, use,
exercise, and vend, within the United Kingdom of Great Britain and Ireland,
the Channel Islands, and Isle of Man, an Invention for "IMPROVEMENTS IN
MACHINERY FOR PULVERISING ORES AND EXTRACTING METALS THEREFROM, PART OF
WHICH IS APPLICABLE TO BREAKING STONES," upon the condition (amongst others)
that I, the said William Southwood, my executors or administrators, by an
instrument in writing under my, or their, or one of their hands and seals, should
particularly describe and ascertain the nature of the said Invention, and in what
manner the same was to be performed, and cause the same to be filed in
the Great Seal Patent Office within six calendar months next and immediately
after the date of the said Letters Patent.

page_text: NOW KNOW YE, that I, the said William Southwood, do hereby declare
the nature of my said Invention, and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following
statement:
My Invention for improvements in machinery for pulverising ores and
extracting metals therefrom, part of which is applicable to breaking stones,
consists in certain combinations of machinery, a description of which is here-
unto annexed with detailed Drawings, the same letters in different views of
the machinery represent the same parts.
Figure I. is a plan; Figure 11. is a section through A, B; Figure III. is
a longitudinal section through C, D; Figure IIII. is a side elevation; the
remaining Figures are detailed parts. (a) is a strong bed or frame of cast
iron; (b) is the main shaft, on which is mounted two licavy fly wheels (c),.
driving pullies (d), and excentric or cam (e); (f) is a double-faced lever or
breaker, to which are fixed, as shewn, corrugated plates or pieces of chill'd
iron or steel; this lever is mounted upon the inside of the frame or bed (a)
upon a pin (1); these plates or breaking faces may be made in one or
several pieces, and fixed in any ordinary way, but so fixed or arranged that
they form a kind of hopper for the stones or ores. required to be broken- or
pulverised; other plates of a similar description are fixed opposite opposite to
then in the cast-iron bed (a) and lettered (h); these plates for breaking
stones for the common roads have transverse corrugations, and are lettered (h 1,)
so that when the stones are being broken they may not fall out of the machine
in long pieces, but be broken as nearly as possible into cubes; (2) are two
friction rollers, attached to the lever (f), and upon or against these the
excentric or cam (e) upon the main shaft is constantly acting; these friction
rollers, with so much of the shaft (6) occupying or within the lever (f),.should.
be enclosed with an oil-tight packing (3), so that the excentric or cam and
friction rollers are constantly lubricated or working in. oil. The oil can be
poured in through an aperture at the top of the lever (f),.and marked. (1);.
(i) are two conical rollers, geared and driven by two. toothed wheels () from
the main shaft (h); (k) are two scrapers, fixed to the frame (a), and kept
constantly acting upon the rollers (i) by means of weights (e); these scrapers,.
when the ores are being reduced to a powder, prevent the rollers from cloging;
(m) are a series of troughs, which may be made moveable or stationery ;. in
them are recesses for holding mercury or other matter for intercepting the gold.
or other metals ("contained in the debris or pulverised. ores") in its passage.
through the machine.
In these troughs may be placed tappets (a) like in-

page_text: form to the barrel of an organ for the purpose of mixing the gold with the
mercury in its passage through or into the machine; these tappets may be
driven by a band from the main shaft in any ordinary way, and should be
moved very slowly; (o) is a riddle; this riddle is made of copper or other
suitable material, and very finely perforated; it may also be corrugated to give
a larger surface for the exit of the finely crushed portions of the ores; this
riddle is mounted upon a moveable framework (p), and is acted upon or
moved to and fro by the action of the lever (f), the troughs (m) may also be
attached to this frame. I would here remark that it is not absolutely neces-
sary these troughs should move for the extraction of gold from the ores, as a
peculiar adjustment of them (which can only be obtained by practice) will
take out the gold, even if they are stationary. (9) is a guide, fixed outside,
and on both sides of the riddle and troughs, and conducts so much of the ores
not sufficiently broken to pass through the riddle (o) into or upon the rollers (i);
After it has been pulverised by passing through the rollers, such portions of
gold as remain may be taken out by additional troughs (conveniently placed),
as herein-before described, or by any other ordinary means; (r) is a water
pipe and taps, used only when and as the character and nature of the orės
require it.
The mode of working this machinery for reducing ores and extracting gold
or other metals therefrom is as follows:-
I first charge the troughs with mercury or other matters, which has an
affinity for the metals to be obtained; I then actuate the machine by an
ordinary motive power; I then throw the ores between the breaker or corru-
gations, where it is partially broken and falls through upon the riddle, part of
which passes through the riddle upon or into the troughs or amalgamators;
the remainder falls over the sides of the riddle down the guides into or upon
the rollers, thence through, into, or upon any ordinary means or method of
extracting gold or other metals from pulverised ores.
When the ores or stones are not required to be reduced to a powder, the
riddle, troughs, and rollers (i) may be removed.
I claim as my Invention the combination and use of machinery for pul-
verising ores and extracting metals therefrom, substantially as herein.
described.
I claim particularly and absolutely the use of the following parts of the
machinery herein-before described, namely, the lever (f) in combination with
friction rollers (h 2) and excentric or cam (e), for the purpose of reducing ores
or breaking stones, substantially as herein described.

page_text: I also claim the use of a transverse corrugation or corrugated plate, plates,
or breakers upon the breaking faces of the lever (f) or bed (a), whether
made in one piece or separately, for the purpose of breaking stones, sub-
stantially as herein described.
In witness whereof, I, the said William Southwood, have hereunto set
my hand and seal, this Eighth day of November, in the year of our
Lord One thousand eight hundred and sixty-two.
W. SOUTHWOOD. (L.S.)