IMPROVEMENTS APPLICABLE TO CORN AND OTHER SCREENS
Year: 1873

page_text: LETTERS PATENT to John Thomas Staniland, of Bury St. Edmunds, in
the County of Suffolk, Commercial Traveller, for the Invention of
"THEDAFENONMO
PROVISIONAL SPECIFICATION left by the said John Thomas
Staniland at the Office of the Commissioners of Patents, with
his Petition, on the 26th August 1873.
I, JOHN THOMAS STANILAND, of Bury St. Edmunds, in the County
of Suffolk, Commerical Traveller, do hereby declare the nature of the
said Invention for "IMPROVEMENTS APPLICABLE TO CORN AND OTHER SCREENS,"
to be as follows:-
Corn and other screens are usually composed of wires of a given'
thickness, and set or arranged at certain determined distances apart,
according to the size of the grain or other substance that is to be
operated upon. After the screens have been in use for some time the
wires will become worn thinner, and consequently the spaces between
them will be increased in width so that good grain will sometimes pass
through the screen and become mixed with the refuse and be lost.
1
:

page_text: The object of the present Invention is to restore the screen to its
original gauge, and this is done, by placing over the worn wires thin metal
caps or clips, which will compensate for the wear to which the wires
have been subjected. Thin sheet iron, steel, or brass may be used for
this purpose, and these metal clips which will be cheap and easy to 5
manufacture may be applied to the wires with great facility.
•
I also propose to adapt metal clips or caps of this description to new
as well as old or worn screens, and as clips made of metal of various
thicknesses may be employed it will be evident that the gauge of the
screen may be changed at pleasure by merely adapting to the wires 1
metal clips or caps of the desired or required thickness. A screen
suitable for screening beans may therefore with great facility be made
applicable for screening barley or wheat, and a screen suitable for the
latter grains may be adapted for screening turnip or other small seeds.
SPECIFICATION in pursuance of the conditions of the Letters Patent 1
filed by the said John Thomas Staniland in the Great Seal Patent
Office on the 24th February 1874.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOHN
THOMAS STANILAND, of Bury St. Edmunds, in the County of Suffolk,
Commercial Traveller, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twenty-sixth day of August, in the year
of our Lord One thousand eight hundred and seventy-three, in the
thirty-seventh year of Her reign, did, for Herself, Her heirs and suc-
cessors, give and grant unto me, the said John Thomas Staniland, Her
special licence that I, the said John Thomas Staniland, my executors,
administrators, and assigns, or such others as I, the said John
Thomas Staniland, 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 In-
vention for "IMPROVEMENTS APPLICABLE TO CORN AND OTHER SCREENS," upon
the condition (amongst others) that I, the said John Thomas Staniland,..

page_text: 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.
NOW KNOW YE, that I, the said John Thomas Staniland, 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 the following statement, reference being had to the Drawing herc-
unto annexed and to the letters and figures marked thereon (that is to
say) :—
Corn and other screens are usually composed of wires of a given
thickness and set or arranged at certain determined distances apart,
according to the size of the grain or other substance that is to be
operated upon. After the screens have been in use for some time the
wires will become worn thinner, and consequently the spaces between
them will be increased in width, so that in corn screens good grain will
sometimes pass through the screen and become mixed with the refuse
) and be lost.
The object of the present Invention is to restore a worn screen to its
original gauge, and this is done by placing over the worn wires thin
metal caps or clips which will compensate for the wear to which the
wires have been subjected. Thin sheet iron, steel, or brass may be used
for this purpose, and these metal clips which will be cheap and easy of
manufacture may be applied to the wires with great facility.
I also propose to adapt metal clips or caps of this description to new
as well as to old or worn screens, and as clips made of metal of various
thicknesses may be employed it will be evident that the gauge of the
screen may be changed at pleasure by merely adapting to the wires
metal clips or caps of the desired or required thickness. A screen
suitable for screening beans may therefore with great facility be made
applicable for screening barley or wheat, and a screen suitable for the
latter grains may be adapted for screening turnip or other small seeds.
My Invention is also applicable to screens for screening ground lime,
gravel, sand, or other substances.

page_text: In the accompanying Drawing Fig. 1 is a plan view of the under side
of part of a corn screen; Fig. 2 is a longitudinal vertical section of the
same taken across the row of wires which are secured in frames in the
usual way.
In Figures 1 and 2 a, a, are the wires which whether new wires or
partially worn ones are covered with the metal caps b, b, shewn detached
in plan and end view at Figures 3. For the sake of simplicity these
caps when bent into the right form are made to hold on to the wires by
the elasticity of the metal and when they are worn too thin they may
be removed and new ones put in their place.
As the main object of the Invention is to preserve the gauge of the
screen, this object may be effected (when the wires are not too much
worn) by providing every alternate wire only with a cap instead of all the
wires, as shewn at Figures 1 and 2.
Having described my Invention of "Improvements Applicable to
Corn and other Screens," and having explained the manner of carrying
the same into effect, I claim as the Invention secured to me by Letters
Patent as aforesaid, adapting to the wires of screens for screening corn
and other seeds or substances, metal caps, clips, or covers, as and for the
purposes herein set forth.
In witness whereof I, the said John Thomas Staniland, have
hereunto set my hand and seal, the Nineteenth day of February,
in the year of our Lord One thousand eight hundred and
seventy-four.
JOHN THOMAS STANILAND. (L.S.)