IMPROVEMENTS.IN APPARATUS FOR SEPARATING METALS FROM EARTHY AND OTHER MATTERS MIXED WITH THEM
Year: 1863

page_text: LETTERS PATENT to Bevan George Sloper, of Walthamstow, in the
County of Essex, Engineer, for the Invention of "IMPROVEMENTS.IN
APPARATUS FOR SEPARATING METALS FROM EARTHY AND OTHER MATTERS
MIXED WITH THEM."
Sealed the 2nd November 1863, and dated the 4th May 1868.
PROVISIONAL SPECIFICATION left by the said Bevan George Sloper
at the Office of the Commissioners of Patents; with his Petition; on the
4th May 1863.
I, BEVAN GEORGE SLOPER; of Walthamstow; in the Colinty of Essex,
Engineer, do hereby declare the nature of the said Invention for "IMPROVE-
*MENTS IN APPARATUS FOR. SEPARATING METALS FROM EARTHY AND OTHER MATTERS
MIXED WITH THEM," to be as follows:-
My Invention consists in. constructing apparatus äs Hereafter described;
wherein the matters acted on are first separated according to their degrees of
fifieness, and are afterwards subjected to washings; whereby the metals and
metallic particles are left in receptacles, from which they are afterwards
removed.
The apparatus consists of a perforated cylinder, the perforations-in-which
are gradually-reduced in size from one end of the cylinder to the other. This
cylinder is made to revolve over, and partly in a cistern or vessel containing
water; and in which funnels are placed for receiving the matters as they issue

page_text: through the perforated cylinder. These funnels are fixed into or form part
of tubes fitted at bottom with taps, which open into syphon pipes of india-
rubber or other suitable flexible material. An agitator is placed under the
bends of these pipes, and keeps them constantly in motion. The material to
be operated on is fed into the interior of the cylinder, and is gradually passed
along the cylinder, portions according to the fineness falling through the
different perforations as they travel towards the opposite end of the cylinder.
The matters fall into the various funnels, descend the pipes, and by the
pressure of the water in the pipes all the lighter portions are driven off through
the syphon pipes, while the metal and metallic particles remain in the bends
of the syphons. By opening the taps to their fullest bore the metal and
metallic particles, are expelled from the syphon tubes. Such portions of the
material as are too large to pass through the perforations in, the cylinder are
discharged from the farther end to be reduced, and again passed into the
cylinder or otherwise.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Bevan George Sloper in the Great Seal Patent Office on
the 4th November 1863.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, BEVAN
GEORGE SLOPER, of Walthamstow, in the County of Essex, Engineer, send
greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Fourth day of May, in the year of our Lord One
thousand eight hundred and sixty-three, in the twenty-sixth year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto me, the
said Bevan George Sloper, Her special licence that I, the said Bevan
George Sloper, my executors, administrators, and assigns, or such others as
I, the said Bevan George Sloper, 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 "IMPROVE-
MENTS IN APPARATUS FOR SEPARATING METALS FROM EARTHY AND OTHER MATTERS
'MIXED WITH THEM," upon the condition (amongst others) that I, the said
Bevan George Sloper, my executors or administrators, by an instrument in
writing under my, or their, or one of their hands and seals, should parti-

page_text: cularly 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 I, the said Bevan George Sloper, do hereby
declare the nature of my said Invention, and in what manner the "same is
to be performed, to be particularly described and ascertained in and by tlie
following statement thereof, reference being had to the Drawings hereunto
annexed, that is to say:-
My Invention consists in constructing apparatus as hereafter described,
wherein the matters acted on are first separated according to their degrees of
fineness, and are afterwards subjected to washings; whereby the metals and
metallic particles are left in receptacles from which they are afterwards removed.
The apparatus consists of a perforated cylinder, the perforations, in which
are gradully reduced in size from one end of the cylinder to the other. This
cylinder is made to revolve over and partly in a cistern or vessel containing
water, and in which funnels are placed for receiving the matters as they issue
through the perforated cylinder. These funnels are fixed into or form part of
tubes, fitted at bottom with taps, which open into syphon pipes of india-
rubber or other: suitable. flexible material. An agitator is placed under the
bends of these pipes, and keeps them constantly in motion.
Figure 1 of the accompanying Drawings is an elevation, and Figure 2 a
transverse section, of an apparatus constructed according to my Invention.
A is a perforated cylinder, the perforations in which are, as before stated,
gradually reduced in size from one end of the cylinder to the other; B is a
cistern or vessel containing water, over and partly in which the cylinder is
made to revolve by means of a crank handle C and toothed wheels D, D, or
otherwise; E are funnels. in the cistern B for receiving the matters as they
issue through the perforated cylinder A.. These funnels are fixed into or form
part of tubes F fitted at bottom with taps G, which open into syphon pipes H
of india-rubber or other suitable flexible material. I is an agitator actuated
by a cam K to keep the syphon pipes constantly in motion. The-operation is
as follows:-The material to be operated on is fed into the interior of the
cylinder A, and is gradually passed along the cylinder portions according to
=the fineness, falling through the different-perforations as they travel towards
the opposite end of the cylinder. The matters fall into the various funnels E,
descend the pipes F, and by the pressure of the water in the pipes all the
lighter portions are driven off through the syphon pipes H, while the metal
and metallic particles remain in the bends of the syphous. By opening the

page_text: taps G to their fullest bore the metal and metallic particles are expelled from
the syphon tubes. Such portions of the material as are too large to pass
through the perforations in the cylinder are discharged from the farther end
to be reduced, and again passed into the cylinder or otherwise.
And having now described the nature of the said Invention, and in what
manner the same is to be performed, I declare that I claim, constructing
apparatus for separating metals from earthy and other matters mixed with
them, wherein the matters acted on are first separated according to their
degrees of fineness, and are afterwards subjected to washings, whereby the
metals and metallic particles are left in receptacles, from which they are after-
wards removed, all substantially as herein-before described and illustrated in
the accompanying Drawings:
In witness whereof, I, the said, Bevan George Sloper, have hereunto
set my hand and seal, this Fourth day of November, One thousand
eight hundred and sixty-three.