IMPROVEMENTS IN STEAM STAMPING MACHINES FOR ORES AND OTHER HARD SUBSTANCES
Year: 1872

page_text: LETTERS PATENT to William Willoughby, Joseph Willoughby, and
Samuel Willoughby, all of Plymouth, in the County of Devon,
for the Invention of "IMPROVEMENTS IN STEAM STAMPING MACHINES FOR
ORES AND OTHER HARD SUBSTANCES."
Sealed the 2nd August 1872, and dated the 7th February 1872.
PROVISIONAL SPECIFICATION left by the said William Willoughby,
Joseph Willoughby, and Samuel Willoughby at the Office of the
Commissioners of Patents, with their Petition, on the 7th February
1872.
We, WILLIAM WILLOUGHBY, JOSEPH WILLOUGHBY, and SAMUEL
WILLOUGHBY, all of Plymouth, in the County of Devon, do hereby
declare the nature of the said Invention for "IMPROVEMENTS IN STEAM
STAMPING MACHINES FOR ORES AND OTHER HARD SUBSTANCES," to.
follows:-
be as
This Invention consists in certain arrangements in constructing
machines for stamping ores and other hard substances, in which one or

page_text: more steam cylinders having pistons (to the rods of which the stamp
heads are attached) working therein are employed, and in connection
with which condensing apparatus is advantageously made use of.
One or more condensers, constructed according to any of the well-
known methods, together with air and other pumps (as well understood) 5
is or are so placed and arranged as to admit of motion being given to the
pumps and a partial vacuum thereby obtained in the condenser, such
motion being either rotary or reciprocating, intermittent or regular,
and derived from any suitable source of motive power.
A donkey engine is employed to give action to the pumps and to the 1
feeding apparatus, as well understood. Steam being admitted into the
donkey engine the same is exhausted into a pipe leading to the con-
denser, and the pumps being thus set in motion a volume of cold water
is forced through the tubes of the condenser, and the steam becomes
condensed and is drawn away with the air by the air pump. A partial 1
vacuum is thus formed in the condenser. Steam is now admitted into
the cylinder, and is regularly passed by the action of the valve gear
alternately on the upper and under sides of the piston, thus causing a
reciprocating motion of the rod and stamp head, and the steam being
passed through the exhaust pipe into the condenser and drawn out by 2
the action of the air pump.
The feeding apparatus, which is of any suitable kind, being set in
motion by the donkey engine, a supply of the ore or other substance
under treatment is passed under the stamp head, where it is crushed
to the desired degree of fineness.
2
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said William Willoughby, Joseph Willoughby, 'and
Samuel Willoughby in the Great Seal Patent Office on the 6th
August 1872.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, WILLIAM 30
WILLOUGHBY, JOSEPH WILLOUGHBY, and SAMUEL WILLOUGHBY, all of
Plymouth, in the 'County of Devon; send greeting.

page_text: WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Seventh day of February, in the
year of our Lord One thousand eight hundred and seventy-two, in the
thirty-fifth year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto us, the said William Willoughby, Joseph
Willoughby, and Samuel Willoughby, Her special licence that we, the
said William Willoughby, Joseph Willoughby, and Samuel Willoughby,
our executors, administrators, and assigns, or such others as we, the
said William Willoughby, Joseph Willoughby, and Samuel Willoughby,
our 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 STEAM STAMPING MACHINES FOR ORES AND OTHER HARD
SUBSTANCES," upon the condition (amongst others) that we, the said
William Willoughby, Joseph Willoughby, and Samuel Willoughby,
our executors or administrators, by an instrument in writing under
our, 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.
NOW KNOW YE, that we, the said William Willoughby, Joseph
Willoughby, and Samuel Willoughby, do hereby declare the nature
of our 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, reference being had to the Drawings hereunto
annexed, and to the figures and letters marked thereon, that is to say :-
Our said. Invention consists in certain arrangements in constructing
machines for stamping ores and other hard substances in which one or
more steam cylinders having a piston or pistons (to the rod or rods of
which the stamp head or stamp heads is or are attached) working.
therein is or are employed, and in connection with which condensing
apparatus is advantageously made use of.
The cylinders with their valve gearing may be of any construction
calculated to produce a reciprocating motion of the rods, and ther

page_text: is
condensing apparatus employed may be constructed in any of the usual
and well-known methods, and together with the air and other pumps
so arranged and placed as to admit of motion being given to the pumps,
and a partial vacuum thereby obtained in the condenser. The condenser
is separate and apart from the stamping apparatus and its framing, and
this constitutes an essential part of our said Invention, as does also the
working of pumps in connection with condensers, whether the latter are
separate and apart or are attached to the stamping apparatus and its
framing by means of an engine or other motive power which is not
governed by and is independent of the moving parts of the 'stamping
apparatus.
Our said Invention further consists in working pumps in connection
with condensing ore stamping machinery by means of levers and
attachments to the moving rods working in and out of the stamping,
cylinders, and also in obtaining a dead blow on the anvil by having the
valve or valves for regulating the steam supply to the cylinders governed
by a power independent of the moving parts of the stamping apparatus
itself.
We will now proceed to refer to the annexed Drawings, from which
the nature and mode of operation of our said Invention will be more
clearly understood.
Figures 1 and 2 shew front and side elevations of a machine con-
structed in accordance with our said Invention.
a is the cylinder; b, the rod with the stamp bead c attached thereto;.
d is the condenser which is shewn at some distance from the stamp
head, but which may be attached to the framing or placed in any
suitable position, the pipes between it and the steam cylinder and pumps
being made longer or shorter to suit the distance. The condenser here
shewn is that kind known as a "surface condenser," but the apparatus
employed for this purpose may be of any description adapted for the
purpose; e is a donkey engine, which is here the power employed apart
from the movements of the stamper, and is used to give action to the
pumps ff, and to the feeding apparatus g.
The action of the machine is as follows:-Steam being admitted into
the donkey engine e, which exhausts into the pipe h, which pipe leads
into the condenser d, and the pumps ff, being thus set in motion, a
volume of cold water is forced through the tubes of the condenser d,
i

page_text: and the steam being exhausted through the pipe h becomes condensed
in d, and is drawn away with the air in d by the air pump. A partial
vacuum is thus formed in the condenser d. Steam is now 'admitted into
the cylinder a, and is regularly, passed by the action of the valveigear
alternately on the upper and under side of the piston, thus causing ra
reciprocating motion of the rod and stamp. head... This: steam being
passed through the exhaust pipe h into the condenser is drawn out by
the action of the pump as before described. This steam may,
conveyed into the condenser of any other engine and be condensed,
when the air pump and condenser of such engine will take the place of
the pumps and the condenser d.
་་
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244
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be
The feeding apparatus 9 being set in motion by the donkey engine 'e,'
a supply of the substance or substances under treatment is passed under
the head c where it is crushed to the requisite degree of fineness, and
is then washed through the gratings placed about the head for that
purpose by water conveyed thereto, or dry stamped as may be required.
"
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:
71 (7) N
} }
In Figure 3 is shewn a condenser which may be of any of the well-
known kinds, and be separate from, or attached to the framing, where
the action of the pumps is obtained by lever or other attachments ķ to
the piston rod, and may be connected at either end of the cylinder..
The feeding apparatus g is worked by an intermittent motion from
same connection.
.
the
For obtaining a dead blow of the stamp heads we employ a cam or
other well-known contrivance adapted for the purpose, which is caused
to revolve regularly by power independent of the stamper, so that the
number of strokes given by the stamp head per minute shall be
regulated, thus causing a perfectly dead, blow to be obtained on the
anvil by simple means, and which may be arranged in various well-
known ways, as will be well understood.
Having thus declared the nature of our said Invention, and in
what manner the same is to be performed, we would observe in con-
clusion that we do not claim the several parts of the apparatus herein-
before described separate and apart from each other as being of our
Invention, but what we consider novel and original, and therefore claim
as constituting the Invention secured to us by the said herein-before in
part recited Letters Patent are,-
First. The arrangement and employment of the condenser separate

page_text: and apart from the stamping apparatus and its framing, and in working
pumps in connection with condensers, whether such condensers are
separate and apart or are attached to the stamping apparatus and its
framing, by an engine or other motive power which is not governed by
and is independent of the moving parts of the stamping apparatus,
substantially as and for the purposes herein-before described and set
forth.
And, secondly. The arrangements for working pumps in connection
with condensing stamping apparatus by means of levers and attachments
to the moving rods working in and out of stamping cylinders, and also
in obtaining a dead blow on the anvil, substantially as and for the
purposes herein-before described and set forth.
In witness whereof, we, the said Joseph Willoughby and Samuel
Willoughby, on behalf of ourselves and the said William
Willoughby, have hereunto set our hands and seals, this Third 1
day of August, in the year of our Lord One thousand eight
hundred and seventy-two.
Witness,
JO CROSS,
Mutley,
Plymouth.
(L.S.)
JOSEPH WILLOUGHBY.
SAMUEL WILLOUGHBY. (L.S.)