IMPROVEMENTS IN OR RELATING TO APPARATUS FOR SORTING AND SCREENING COAL ORES AND OTHER SUBSTANCES
Year: 1883

page_text: LETTERS PATENT to Reginald Heber Silcock of Warrington in the county of
Lancaster, Wire manufacturer. for an Invention of ." IMPROVEMENTS IN OR
RELATING TO APPARATUS FOR SORTING AND SCREENING COAL ORES AND
OTHER SUBSTANCES."
PROVISIONAL SPECIFICATION left by the said Reginald Heber Silcock at
the Office of the Commissioners of Patents on the 17th March 1883.
REGINALD HEBER SILCOCK of Warrington in the County of Lancaster, Wire
Manufacturer, IMPROVEMENTS IN OR RELATING TO APPARATUS FOR SORTING
AND SCREENING COAL ORES AND OTHER SUBSTANCES."
'
In sorting coals there are two operations involved-sorting according to size
and sorting according to quality or picking. It is to do this simultaneously that
this my invention is designed.
J
I form a travelling wire belt made in the manuer hereafter described and cause
it to travel between two planks on edge or other framing above a wagon. The
coal is tipped onto this and as it travels along, the slack falls through into the
wagon; the larger pieces are delivered at the other end and pickers stationed
along the sides of the belt pick out the stones, pyrites, shale, etcetera, or the cannel
from the the ordinary coal.
Ores are treated in a similar manner.
One mode of manufacturing the belt is as follows but other variations of this
plan can be adopted, the main point boing to have a series of very short grids
jointed together into a band passing over pulleys.
:
A series of coiled links are formed by first winding one or more continuous
pieces of flat, round, or square metallic wire several times round a mandril, thence
continuing it across to a second mandril placed parallel with the first but at the
required distance apart from it, round which second mandril similar coils are
formed, but coiled in the reverse direction; thence the wire 'is continued across
again to the first mandril, round which a second series of coils are formed, and
so repeating the coils alternately round each mandril until the desired width of
belting is obtained. The coiled links so formed being jointed together as and for
the purposes described.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Reginald Heber Silcock in the Great Seal Patent Office on the
15th September 1883.
REGINALD HEBER SILCOCK, of Warrington in the County of Lancaster, Wire
Manufacturer "IMPROVEMENTS IN OR RELATING TO APPARATUS FOR SORTING
AND SCREENING COAL, ORES, AND OTHER SUBSTANCES "
In sorting coals there are two operations involved, sorting according to size, and
sorting according to quality, or picking. It is to do this simultaneously that this
my invention is designed.
I form a travelling wire screen made in the manner hereafter described, and
cause it to travel between two planks on edge or other framing to form a kerb
above a wagon. The coal is tipped onto this and as it travels along, the slack falls
through into the wagon or hopper below; the larger pieces are delivered at the
other end and pickers stationed along the sides of the screen pick out the stones,
pyrites, shale, etcetera, or the cannel from the ordinary coal.
Ores are treated in a similar manner.
One mode of manufacturing the screen is set forth in the drawings Figs 1. and 2,
but other variations of this plan can be adopted, the main point being to have a
flexible perforated wide band or a series of very short grids jointed together into a
band passing over pulleys.
A series of coiled links are formed by first winding one or more continuous
pieces of flat, round, or square metallic wire several times round a mandril, thence
continuing it across to a second mandril placed parallel with the first but at the
required distance apart from it, round which second mandril similar coils are
formed, but coiled in the reverse direction; thence the wire is continued across
again to the first mandril, round which a second series of coils are formed, and so
repeating the coils alternately round each mandril until the desired width of
belting is obtained. The coiled links so formed being jointed together by wires
or bars replacing the mandrils. These wires have their ends bent round as shown
to prevent the coiled wires from slipping off them, as ånd för the purposes
described.
Figs. 3 and 4 show' a slight variation where the links are rather longer, and to
prevent the meshes being too large in consequence strips of sheet or hoop iron A A
are slipped in between the crossing wires and their ends turned over to prevent
them slipping out, or if desirable sheet iron strips or plates may be bolted on to
the screen so as to fill up the grids or meshes altogether and so form a sort of
Venetian carrying band.
Having now described my invention and the best mode known to me of carrying
it into effect; I claim as my invention :-
The manufacture or use of the apparatus. for sorting and screening coal, ores, or
other substances, consisting of a travelling endless screen formed of wire or other
suitable material passing over rollers or drums between two kerbs, outside of which
kerbs the pickers stand to pick the larger lumps of material delivered onto the
screen at one end as they pass to the other end, while the small stuff passes
through the screen to a receptacle below, substantially as and for the purposes
described.
In witness whereof I the said Reginald Heber Silcock have hereunto set my
hand and seal this fourteenth day of September in the year of our Lord one
thousand eight hundred and eighty three