Im. PROVEMENTS IN ROTARY SCREENS FOR DRESSING AND SEPARATING GRAIN AND SEEDS
Year: 1873

page_text: LETTERS PATENT to Edward Hare, Tinner, and John Oldfield Ardron,
Fitter, both Workmen in the Employment of Penney and Company,
Limited, of the City of Lincoln, Wire Workers and Agricultural
Screen Manufacturers, for the Invention of "IMPROVEMENTS IN
PROVISIONAL SPECIFICATION left by the said Edward Hare and John
Oldfield Ardron at the Office of the Commissioners of Patents,
with their Petition, on the 18th March 1873.
We, EDWARD HARE, Tinner, and JOHN OLDFIELD ARDRON, Fitter,
both Workmen in the Fmployment of Penney and Company, Limited,
of the City of Lincoln, Wireworkers and Agricultural Screen Manu-
facturers, do hereby declare the nature of the said Invention for "Im.
PROVEMENTS IN ROTARY SCREENS FOR DRESSING AND SEPARATING GRAIN AND
SEEDS," to be as follows:-

page_text: we remove and fasten or connect the ends of the wire. We then draw
every two coils or rounds of the wire together at certain parts, thus
causing them to approach each other, and we fasten them together at
that part, but leave sufficient space at the connection as required for
the gauge. Then at convenient intervals we attach each coil or round
of wire to the next adjacent coil or round of wire, that is to say, one of
the first pair to one of the next pair, and so on. Thus, for instance,
after Nos. 1 and 2 have been attached together, and Nos. 3 and 4
attached together, and so on, No. 2 is attached to No. 3, and No. 4 to
No. 5, and so on. The ends of the wire are fastened to castings or end
plates as is usual, and these castings or end plates are moved to or from
each other (that is to say, caused to approach and recede) by means of a
screw or otherwise so as to open and close or adjust or regulate the inter-
stices, meshes, or openings of the screen.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Edward Hare and John Oldfield Ardron in the
Great Seal Patent Office on the 17th September 1873.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, Edward
HARE, Tinner, and JOHN OLDFIELD ARDRON, Fitter, both Workmen in the
Employment of Penney and Company, Limited, of the City of Lincoln,
Wire Workers and Agricultural Screen Manufacturers, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Eighteenth day of March, 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 us, the said Edward Hare and John Oldfield Ardron,
Her special license that we, the said Edward Hare and John Oldfield
Ardron, our executors, administrators, and assigns, or such others as we,
the said Edward Hare and John Oldfield Ardron, 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 ROTARY
SCREENS FOR DRESSING AND SEPARATING GRAIN AND SEEDS," upon the condition

page_text: (amongst others) that we, the said Edward Hare and John Oldfield
Ardron, our executors or administrators, by an instrument in writing
under our or their hands and seals, or under the hand and seal
of one of us or them, 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 Edward Hare and John Old-
field Ardron, 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, reference
being had to the accompanying Drawings, and to the letters and figures
marked thereon, that is to say :-
=
According to our Invention we construct a rotary wire screen in the
following manner :-We wind or coil wire on a cylindrical block which
we then remove, and we fasten the ends of the wire to end castings or
frame pieces. We draw every two coils or rounds of the wire together
at certain parts, thus causing them to approach each other, and we
fasten them together at those parts, but leave a sufficient space at the
connection as required for the gauge. Then at convenient intervals we
attach each coil or round of wire to the next adjacent coil or round of
wire, that is to say, one of the first pair to one of the next pair, and so
on. Thus, for instance, after Nos. 1 and 2 have been attached together,
and Nos. 3 and 4 attached together, and so on, No. 2 is attached to
No. 3, and No. 4 to No. 5, and so on. The ends of the wire are fastened
to castings, end plates, or frame pieces, as is usual, and these castings or
end plates are moved to and from each other, or either one of them is
caused to approach to and recede from the other by means of a screw or
otherwise, so as to open and close, or adjust and regulate the area of the
interstices, meshes, or openings of the screen.
We proceed to describe with reference to the accompanying Drawings
a rotary screen constructed according to our Invention.
Figure 1 is an elevation of a rotary screen A constructed according to
our Invention. A portion of the wirework composing this screen is
removed so that the interior may be better seen, and also so that
unnecessary lines may be avoided; but of course it will be understood

page_text: wire composing the screen is coned or wound into a cyimurical
form. The dotted lines indicate the extent to which the screen may be
expanded.
"
Figure 2 is an end view of the screen; Figure 3 is a section or frag-
ment of the screen, shewing the wires or meshes in the " open or
expanded condition; and Figure 4 is a similar section or fragment
shewing the same in the "closed" or reduced condition.
In forming the screen A, the wire w composing it is coiled or wound
into a cylindrical shape round a cylindrical block in such manner that
each coil, round, or turn of the wire may be parallel to the next suc-
ceeding one. After the wire has been coiled or wound in this manner
the block is removed, and the ends are attached to end castings a, b, one
at each end respectively of the cylindrical coil of wire. At convenient
intervals we attach each coil or round of wire to the next adjacent coil
or round of wire, that is to say, one of the first pair to one of the next
pair, and so on. Thus, for instance, after Nos. 1 and 2 have been
attached together as shewn at x (Figures 3 and 4), and Nos. 3 and 4
attached together as shewn at z (Figures 3 and 4), and Nos. 5 and 6 as
shewn at x¹, then No. 2 is attached to No. 3 as shewn at y, and No. 4 to
No. 5 as shown at y¹ (Figures 3 and 4), and so on. The ends of the
wire are fastened to castings or end plates a, b, as is usual, and these
castings or end plates are moved to and from each other, that is to say,
caused to approach and recede, by means of a screw or otherwise, so as to
open and close, or adjust or regulate the interstices, meshes, or openings
of the screen.
One end is
C is an axis or shaft which passes through the screen.
bored hollow at the required portion to receive a screw d actuated by a
handle D, and in gear with a nut E working in the hollow of the shaft,
and connected by arms e with the end casting a, so that by turning the
handle D in the required direction the screw d and nut E will move a
the end casting a nearer to or farther from the end casting b (according
to the direction in which the handle D is turned) and thus the screen is
expanded or reduced in length, and the area or gauge of the meshes or
interstices between the coils of wire is varied and regulated accordingly.
g is an ordinary spiral guide for conducting the grain from one end of a
the screen to the other.

page_text: By working the screen, the wires being attached as described, they
may when expanded form rhomb-shaped and lozenge-shaped meshes, as
shewn in Figure 3.
We can obtain any size of mesh or opening, so as to allow of grain of
various sizes and shapes being properly separated.
Having now described the nature of the said Invention, and in what
manner the same is to be performed, we declare that we claim as of our
said Invention, the improved construction of rotary screen, herein-before
described, in which the wire composing such screen is disposed, con-
nected, and operated substantially as above set forth.
In witness whereof, we, the said Edward Hare and John Old-
field Ardron, have hereunto set our hands and seals, this Ninth
day of September, in the year of our Lord One thousand eight
hundred and seventy-three.
EDWARD HARE.
(L.S.)
Witness to both signatures,
JAMES BIRCH,
3, Park Villa,
Lincoln.
JOHN OLDFIELD ARDRON. (L.s.)