provements in Apparatus for Magnetically Separating Iron and Steel from Brass or the like Cuttings.
Year: 1897

page_text: Date of Application, 21st Apr.,
1897
Complete Specification, Left, 24th Aug., 1897-Accepted, 9th Oct.,
1897
PROVISIONAL DILUITIVATION
Improvements in Apparatus for Magnetically Separating Iron and
Steel from Brass or the like Cuttings.
I, JOHN BROMILOW, of William Street Brass Works, Heywood; near Manchester,
in the County of Lancaster, Brass Founder and Finisher, do hereby declare the
nature of this invention to be as follows: —
This invention relates to improvements in apparatus for magnetically separating
iron or steel from brass or the like cuttings, the object being to provide means.
whereby the electro-magnets which pick out the iron or steel cuttings can be
magnetized much stronger and are caused to discharge the iron or steel cuttings
automatically without the use of a brush which renders the apparatus much more
efficient than those heretofore in use..
To this end I employ in suitable bearings a drum adapted to rotate at a suitable
speed. This drum is arranged in connection with a trough and carries on its
periphery a suitable number of electro-magnets arranged in rows and preferably
consisting each of a bobbin covered with a conical hood which prevents the brass
or the like cuttings being carried into a box which receives the iron or steel cuttings
separated. The wires of each row of bobbins are connected together and the ends
thereof to an annular brass ring fixed in insulated segments concentrically to each
end of the said drum and each of the said segments receiving the wire of one row.
At the side of each of the said annular rings is arranged in contact therewith
a, segmental brass. ring which always exposes about a third of the said annular
brass ring and are connected to a suitable electric source. These segmental ings
are stationary in relation to the said annular rings and set up against their sides
by means of springs.
The aforesaid trough is formed parallel, with the periphery of the drum and
extends a little below. the centre of the latter, its upper end being formed with a
hopper furnished with a feed worm and its lower end with an outlet.
The metal cuttings to be separated are placed into the said hopper and by its worm
conveyed into the said trough. When the said drum is rotated the rows of magnets
passing under the segmental ring are magnetized thereby and in passing through
the cuttings in the said trough pick up the iron or steel cuttings whilst when they
leave the said ring they become instantly de-magnetized which causes them to
drop the iron or steel cuttings into a suitably arranged box.
1 Al 1007
F. BOSSHARDT & Co.,
Agents to Applicant.

page_text: Improvements in Apparatus for Magnetically Separating Iron and
Steel from Brass or the like Cuttings.
I, JOHN BROMILOW, of William Street Brass Works, Heywood, near Manchester,
in the County of Lancaster, Brass Founder and Finisher, do hereby declare the
nature of this invention and in what manner the same is to be performed, to be
particularly described and ascertained in and by the following statement:-
This invention relates to improvements in apparatus for magnetically separating
iron or steel from brass or the like cuttings or ground ores, the object being to pro-
vide means whereby the electro-magnets which pick out the iron or steel cuttings are
magnetized much stronger and de-magnetized so as to cause to discharge the iron
or steel cuttings automatically without the use of a brush which renders the
apparatus much more efficient than those heretofore in use.
And in order that my invention may be more fully understood I have caused to
be appended hereunto one sheet' of drawings marked with letters of reference
indicating like parts in the various figures.
Fig. 1 is a longitudinal section, Fig. 2 a sectional plan and Fig. 3 a sectional end
view of my improved apparatus for magnetically separating iron and steel from
brass or the like cuttings or ground ores.
i
In carrying out my invention and referring to the figures generally, I employ
in suitable bearings upon a frame a, a drum b, preferably formed conical in skeleton
fashion and rotated at a suitable speed by means of the pulley c. This drum is
arranged in connection with a trough d'one side of which is hinged to and the other
side suspended from the frame a, a, by means of springs e, e, which trough is
adapted for the reception of the cuttings or ores to be separated. The said drum
carries on its periphery a suitable number of electro-magnets arranged in rows in
longitudinal and spiral fashion so as to propel the cuttings or ores in the trough d
from the inlet to the outlet end. Each electro-magnet preferably consists of a
bobbin covered with a conical hood g which latter preserves the wire of the bobbin
and being conical prevents the brass or the like cuttings or ores being carried into
the box which receives the iron or steel cuttings or ores separated as hereinafter
described. The wires f¹ of each row of bobbins are connected together and the
ends thereof to insulated segments forming, an annular brass ring i fixed con-
centrically to each end of the drum b, each of the said segments receiving the wire fl
of one row of bobbins.
At the side of each of the annular rings i is arranged in contact therewith a seg-
mental brass ring k which always exposes about a third of the annular brass ring
and which are connected to a suitable electric source, say electric battery or dynamo,
by means of the wires 1. These segmental rings are stationary in relation to
the annular rings i and set up against their sides, say by means of springs m and
adjustable screw m¹.
The trough d is formed parallel with the periphery of the drum b and extends,
a little below its axis, see Fig. 3, its upper or inlet end being in communication
with a feed worm n and the latter with a hopper o and its lower end formed with an
outlet p. The feed worm n is rotated from the drum shaft b¹ by means of spur
wheels 62 & b³.
The metal cuttings or ground ores to be separated are placed into the hopper o
and by its worm n conveyed into the trough d. When the drum b is rotated the
insulated segments i pass successively under the segmental ring k and each being
connected to a row of electro-magnets, they are magnetized thereby and passing
through the cuttings or ground ores in the trough d pick up the iron or steel

page_text: cuttings or ores whilst when they leave the rings k they become instantly
demagnetized which causes them to drop the iron or steel cuttings or ores into
the box h.
The brass and the like cuttings or ores in the trough d, from which the steel
or iron cuttings or ores have been extracted being propelled by the magnets,
leave the trough d at its lower end and fall into the box q below.
To prevent the brass or the like cuttings or ores from leaving the side of the
trough next to the box h, I employ a brush r against the same, whilst another
brush s fixed to the frame of the machine frees the magnets g from dust. The thin
end of the drum bis furnished with suitably curved blades t which serve to work
the cuttings towards the magnets g and the upper half of the drum b is enclosed in
a casing u.
It will be readily understood that owing to the constant connection of the electro-
magnets g with an electric source they can be magnetized stronger and are thus
rendered much more effective and reliable in action and being de-magnetized
when out of the cuttings or ores the removal of the picked out cuttings or ores is
performed automatically.
Having now particularly described and ascertained the nature of my said
Invention and in what manner the same is to be performed I declare that what I
claim is:-
1st. In apparatus for magnetically separating iron and steel from brass or the
like cuttings or ground ores, a rotary drum 6 furnished on its periphery with
electro-magnets 9, in combination with a trough d arranged below the said drum
for the reception of the metal cuttings or ores to be separated, the said electro-
magnets being magnetized whilst passing through the said cuttings or ores and de-
magnetized when leaving the same, all substantially as and for the purpose set
forth.
2nd. In apparatus for magnetically separating iron and steel from brass or the
like cuttings or ground ores, a rotary drum b furnished on its periphery with
electro-magnets g which are connected with insulated segments forming rings i
secured to each drum end and stationary segments k arranged in contact with the
said rings and connected to an electric source, which rings and segments are adapted
to magnetize and de-magnetize the said electro-magnets, all substantially as and
for the purpose set forth.
Dated this 23rd day of Anost 1807
F. BOSSHARDT & Co.,
4, Corporation Street, Manchester, Agents to Applicant.