IMPROVEMENTS IN APPARATUS FOR SEPARATING IRON, STEEL, OR MAGNETIC OXIDE FROM OTHER SUBSTANCES
Year: 1881

page_text: LETTERS PATENT to Edmund Hunt, of Glasgow, in the County of Lanark,
North Britain, Patent Agent, for an Invention of "IMPROVEMENTS IN
APPARATUS FOR SEPARATING IRON, STEEL, OR MAGNETIC OXIDE FROM
OTHER SUBSTANCES." A communication from abroad by John King, of
Carrizal Bajo, in the Republic of Chili.
PROVISIONAL SPECIFICATION left by the said Edmund Hunt at the Offico
of the Commissioners of Patents on the 28th June 1881.
"
EDMUND HUNT, of Glasgow, in the County of Lanark, North Britain, Patent
Agent. IMPROVEMENTS IN APPARATUS FOR SEPARATING IRON, STEEL, OR
MAGNETIC OXIDE FROM OTHER SUBSTANCES." A communication from abroad by
John King, of Carrizal Bajo, in the Republic of Chili.
This Invention has for its object to separate iron, steel, or magnetic oxide from
other substances by means of improved apparatus, in which magnets are applied in
a novel manner,
and so that the operation may be conducted, in an expeditious and
continuous manner.
In a modification of the apparatus suitable for separating bits of wire from grain
there is a hopper, into which the grain is put, and from the bottom of which it is
supplied in a regulated stream to the upper end of an inclined shoot or channel.
The bottom of this shoot is made of sheet zinc or brass or other suitable thin
material not affected by magnets; and beneath this thin bottom there is a gang or
series of magnets arranged in one or more frames, which can be adjusted by means
of screws or the like to put the acting parts of the magnets nearer to or further
from the shoot bottom, so that the attraction on the iron substances passing down
the shoot may be made stronger or weaker as may be found necessary. At the
lower end of the gang of magnets the shoot bottom is curved round, and there is
an opening or vertical passage for the iron bits to pass off by, whilst beyond the
opening the shoot is continued without any magnets, and the grain or other
Price C71

page_text: substances not attracted by the magnets leap over the opening and pass down the
part of the shoot beyond it into any convenient receptacle. At the curved
entrance to the opening the magnetic attraction is made sufficiently strong to
cause some of the iron bits to stick to the surface at a point just out of the
current of the grain, and as the bits accumulate the hold on those which become
lowest relaxes and they drop off. The magnets may be of the horse shoe form, but
are by preference bended the flat way of the metal, and they are placed with their
poles directed towards the shoot bottom, with the end surfaces parallel thereto,
being by preference arranged in transverse rows, and with those of one row opposite
the intervals between those of the next row.
When constructed for operating on grain the inclination of the shoot is about
one vertical to two horizontal, but will require to be altered for different
substances.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Edmund Hunt in the Great Seal Patent Office on the 24th.
December 1881.
EDMUND HUNT, of Glasgow, in the County of Lanark, North Britain, Patent
Agent.
"IMPROVEMENTS IN APPARATUS FOR SEPARATING, IRON, STEEL, OR
MAGNETIC OXIDE FROM OTHER SUBSTANCES." A communication from abroad by
John King, of Carrizal Bajo, in the Republic of Chili.
The said Invention has for its object to separate iron, stecl, or magnetic oxide
from other substances by means of improved apparatus in which magnets are
applied in a novel manner, and so that the operation may be conducted in an
expeditious and continuous manner. The apparatus may be advantageously used
for separating bits of wire from grain and for other similar purposes.
The apparatus is provided with a hopper into which the grain or other substance
or mixture of substances to be operated upon is put; and from the bottom of this
hopper the grain descends in a regulated stream down a more or less inclined
channel or passage. The bottom or lower side of the passage is made of sheet zinc,
or brass, or other suitable thin material not affected by magnets; and beneath or
behind this thin material there is fitted a gang or series of magnets arranged in
one or more fraunes, which can be adjusted by means of screws or the like to put
the acting parts of the magnets nearer to or further from the thin material, on the
other side of which the substances are passing, so that the attraction on any iron
or steel bits amongst the substances may be made stronger or weaker as may be
found necessary. At the lower end of the gang of magnets the passage is curved
round, and there is an opening towards the curved side for the iron or steel bits to
pass off by, whilst there is an inclined shoot extending in the opposite direction
down which the grain or other substances not attracted by the magnets pass into
any convenient receptacle. At the curved part of the passge the magnetic
attraction is made sufficiently strong to cause some of the iron or steel bits to

page_text: No text detected.

page_text: accumulation of adherent particles or grains causes the attraction to be weakened,
more especially on the lowest particles or grains, which drop off.
In the modification shown in Figures 4 and 5 the sheet 10 and the frame of
magnets are set at an inclination of about one vertical to two horizontal, which is
found suitable for operating on grain. The bits of wire pass round the curved part
of the sheet 10 into the opening 19, whilst the grain leaps over that opening and
passes off by the shoot 17.
Having thus particularly described the said Invention and the manner of
performing the same, I have to state that I do not restrict myself to the preciso
details herein described or delineated, but that what I believe to be novel and
original and claim as the Invention secured to mo by and in terms of the hercin-
beforo in part recited Letters Patent is,—
The combination of a series of magnets on one side of a sheet not affected by
magnets with apparatus for directing a stream of grain or other substances in contact
with or near the other side of such sheet, and with two outlet passages or ducts for
the separated substances, tho said magnets being adjustable relatively to the said
sheet, and the said sheet being curved at its lower part to lead the particles or
grains of iron or steel or magnetic oxide adherent to it out of the stream of the
other substances, substantially as heroinbefore described.
In witness whereof, I, the said Edmund Hunt, have hereunto set my hand
and seal, this Twenty-third day of December, in the year of our Lord Ono
thousand eight hundred und eighty-one.