IMPROVEMENTS IN MACHINERY FOR SCREENING AND ARIZED MAMEDIATO
Year: 1873

page_text: LETTERS PATENT. to Thomas Edward Wilson, of Forth House, in the
Borough and County of Newcastle-upon-Tyne, Provision Merchant,
for the Invention of "IMPROVEMENTS IN MACHINERY FOR SCREENING AND
ARIZED MAMEDIATO "
WVA
CONT
PROVISIONAL SPECIFICATION left by the said Thomas Edward Wilson
at the Office of the Commissioners of Patents, with his Petition,
on the 3rd April 1873.
I, THOMAS EDWARD WILSON, of Forth House, in the Borough and
County of Newcastle-upon-Tyne, Provision Merchant, do hereby declare
the nature of the said Invention for "IMPROVEMENTS IN MACHINERY FOR
SCREENING AND WASHING SAND, COAL, AND OTHER MATERIALS," to be as
follows:-

page_text: The machine consists of a revolving screen composed of a framework
of any suitable material covered on its circumference with wirework or
other material, having suitable holes or perforations.
The screen is made in three sections, each of the form of a truncated
cone, and the axis of the screen is inclined so that the bottom of each
section of the screen is horizontal or nearly so. The material is intro-
duced at the larger end of the first section, and as the screen revolves it
travels along being sifted at the same time from the small until it
arrives at the end of the first section; the material then falls down into
the second section of the screen which dips into water contained in a
tank and so the material is washed and at the same time further sifted.
Afterwards the material falls into the third section of the screen in
which are fixed partitions or lifters which as the screen revolves lifts the
material and carries it over the axis, it then falls on to an inclined shoot
which conveys it into the trucks to carry it away.
When washing is not required the screen may be made with two
sections only, the water tank being omitted..
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Thomas Edward Wilson in the Great Seal Patent
Office on the 3rd October 1873.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, THOMAS
EDWARD WILSON, of Forth House, in the Borough and County of
Newcastle-upon-Tyne, Provision Merchant, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Third day of April, in the year of our
Lord One thousand eight hundred and seventy-three, in the thirty-sixth
year of Her reign, did, for Herself, Her heirs and successors, give and
grant unto me, the said Thomas Edward Wilson, Her special license that
I, the said Thomas Edward Wilson, my executors, administrators, and
assigns or such others as I, the said Thomas Edward Wilson, 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

page_text: Ireland, the Channel Islands, and Isle of Man, an Invention for
"IMPROVEMENTS IN MACHINERY FOR SCREENING AND WASHING SAND, COAL, AND
OTHER MATERIALS," upon the condition (amongst others) that I, the said
Thomas Edward Wilson, my executors, or administrators, by an instru-
ment in writing under my, or their, or one of their hands and seals,
should particularly describe and ascertain the nature of the said In-
vention, 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 Thomas Edward Wilson, do hereby
declare the nature of the said Invention, and in what manner the same
is to be performed, to be particularly described and ascertained in and by
the following statement thereof, that is to say :-
This Invention relates to machinery for screening and washing sand,
coal, coke, clay, ballast, gravel, lime, ores, or any similar substances.
The machine consists of a revolving screen composed of a framework
of any suitable material covered on its circumference with wirework or
other material, having suitable holes or perforations.
The screen is made in three sections, each of the form of a truncated
cone, and the axis of the screen is inclined so that the bottom of each
section of the screen is horizontal or nearly so. The material is intro-
duced at the larger end of the first section and as the screen revolves
it travels along being sifted at the same time from the small until it
arrives at the end of the first section; the material then falls down into
the second section of the screen which dips into water contained in a
tank, and so the material is washed, and at the same time further sifted.
Afterwards the material falls into the third section of the screen in which
are fixed partitions or lifters which as the screen revolves lifts the
material and carries it over the axis, it then falls on to an inclined shoot
which conveys it into the trucks to carry it away.
When washing is not required the screen may be made with two
sections only, the water tank being omitted.
In order that my Invention may be fully understood and readily
carried into effect, I have shewn in the Drawings hereunto annexed a
combined screening and washing machine constructed as above de-
scribed.

page_text: Figure 1 is a side view partly in section and Figure 2 a transverse
section of the machine.
A is the frame of the machine which is shewn to be mounted on
wheels to run on rails so that it may readily be moved from one place
to another; B is the inclined axis which carries the conical screens; C
is the dry section of the screen; D the washing section; and E the
screening, washing, and elevating section; F are the elevating buckets
of the section E; G is the inclined plane or shoot; H the water cistern
in which the sections D and E are partly immersed; and I is a tip
waggon into which the washed and screened material may be delivered
by the inclined plane or shoot G.
As before stated the water tank may be omitted when washing is not
required, and the screen may then be made with two sections only, one
section a screening section and the other a screening and elevating
section.
The washing and elevating sections may also be combined into one as
in the machine shewn at Figures 3 and 4, the lifting partitions passing
partly across the washer. A beater L may also be employed to shake
the screen as it falls and prevent its choking. Scrapers K may also be
used on the outer circumference as shown.
Having thus described the nature of my Invention and the manner
of performing the same I would have it understood that I claim,-
1. The combined screening and washing machine, substantially as
herein described.
2. The combination with a revolving screen of an elevating section at
its delivery end to deliver the screened materials to an inclined plane or
shoot, substantially as herein described.
In witness whereof, I, the said Thomas Edward Wilson, have here.
unto set my hand and seal, this Twenty-ninth day of September
in the year of our Lord One thousand eight hundred and seventy-
thrce.