Improvements connected with Separating Metals from Seeds, Meal, and other Granular or Pulverulent Substances.
Year: 1896

page_text: Date of Application, 8th Mar., 1896
Complete Specification Left, 7th Dec., 1896-Accepted, 6th Mar.. 1897
от Аррисаtion
ост
Complete Specification Left, 7th Dec., 1896-Accepted, 6th Mar.. 1897
PROVISIONAL SPECIFICATION.
Improvements connected with Separating Metals from Seeds, Meal,
and other Granular or Pulverulent Substances.
I, WILLIAM HENDERSON, of 9 Stewart Road, Higher Tranmere, in the County of
Chester, Millwright, do hereby declare the nature of this invention to be as
follows:-
This invention has reference to apparatus or means for separating metals from
seeds, meal, and other granular or pulverulent material; and relates to that class
of such apparatus wherein the separation is effected through the agency of magnets
or electrical appliances which, in the passage of the material over them or
over a surface through which they act, attract and hold the metal.
According to this invention, the seeds, or granular or pulverulent material,
from which the metal, such as nails and other pieces of iron or steel, are to be
separated, is contained in a hopper, or passed through a receptacle, and from this
it is discharged or delivered along a conduit to a machine or apparatus in which it is
to be operated upon, or to any point or place or delivery; and according to this
invention, means is provided in or in connection with the apparatus by which when
a current of electricity is passing through the coils of magnets-in the case of electro
magnets being used-is stopped, or cut off, the metal which has been held or retained
by such electro magnets in passing along such conduit towards the point of discharge,
will, upon being released by the magnets, be caused to pass or fall into a special
receptacle or place of discharge, i.e., a place other than that to which the seed, meal,
or the like, is to be delivered, so that such metal, under no circumstances, can pass to
the same spot, or place to which the seed, pulverulent, or like material passes.
Further, according to this invention, upon the current being stopped from any cause,
the supply of material from the supply hopper or shoot, is automatically cut off
simultaneously, with the operation of the means by which the metal is delivered
separately from the grain, meal or the like, whereby at these times no meal or seeds,
or the like can pass with the metal.
In one form of apparatus operating according to this invention, the hopper is
provided with a valve or like device, by which the discharge of seed, meal, or the like,
therefrom, is given when the current is on, and cut off when the current is off. This
is conveniently effected by providing in the conduit or shoot down which the material
falls, a movable part which is pulled down or actuated by the magnets when the
current is on, but when the current is off, the valve or cut off device closes and
moves such part away from the magnets, the connection between the moving parts
and the cut off device being provided with means of adjustment for regulating
the movement. The magnets for holding and arresting the metal passing down the
shoot or conduit, are arranged under such shoot, and act upon the metal through
the shoot bottom. At the lower end of the shoot or conduit in this arrangement,
a binged valve or plate is provided, which forms part of the shoot bottom, or
works in connection therewith; and it is so arranged that when the current is on,
it is moved by magrets so as to practically lie flush with the bottom of the
conduit, or form part thereof; and when the current is off, its front edge rises
and the metal which has been separated by the magnets from the material, will
be released by the cutting off of the current, falls from the conduit down under
.

page_text: the valvular device to a receptacle, or point of discharge, separate from that of or
for the seeds, meal, or the like.
In some cases also, the bottom of the hopper is agitated to render the supply
more certain, and this is conveniently effected by the employment of magnets
which cause such bottom to be moved in one direction, the movement in the
reverse or back direction being effected by springs supporting it, or connected
with it. There may also be used in connection with the apparatus a sounding
alarm or gong by which when the machine is stopped or the current cut off, or
at other times, is automatically sounded.
When the invention is applied and used in connection with the machines for opera-
ting upon seeds, meal, or the like, in a mill or works, and the electricity is generated
when the machinery or motive power of the works is set in action, and ceases when it
stops, the invention provides means of automatic supply and cut off to the different
machines in the works in connection with which it is used; so that when the
machinery is stopped from a breakdown, or purposely, the feed to the different
machines automatically reases, and the metal arrested by the apparatus is released,
and is prevented from falling into the machines or feed hoppers thereof, and conducted
to a separate receptacle or point of deposit. In some cases, a switch device is provided
on the apparatus, by which the current to and from the magnets is turned on and cut
off, periodically, to allow of the removal of the metal arrested by the magnets and
adhering to the bottom of the conduit or shoot of the apparatus.
The invention is not confined to the particular construction, arrangement or com-
bination of parts specified in the apparatus more particularly described herein, but
may be modified in various ways as to these without departing from its general
features or characteristics, and applied to different kinds of materials.
Dated this 5th day of March 1896.
CHEESBROUGH & ROYSTON,
15 Water Street, Liverpool, Applicant's Patent Agents.
Improvements connected with Separating Metals from Seeds, Meal,
and other Granular or Pulverulent Substances.
I, WILLIAM HENDERSON, of 9 Stewart Rad, Higher Tranmere, in the County of
Chester, Millwright, 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 has reference to apparatus or means for separating metals from seeds,
meal, and other granular or pulverulent material; and relates to that class of such
apparatus wherein the separation is effected through the agency of magnets or
electrical appliances, which, in the passage of the material over them or over a surface
through which they act, attract and bold the metal.
According to this invention, the seeds or granular or pulverulent material, from
which the metal, such as nails and other pieces of iron or steel, are to be separated, is
contained in a hopper, or passed through a receptacle, and from this it is discharged
or delivered along a conduit to a machine or apparatus in which it is to be operated
upon, or to any point or place or delivery; and according to this invention, means is
provided in or in connection with the apparatus by which, when a current of electricity
passing through the coils of electro-magnets is stopped, or cut off, the metal which
has been held or retained by such electro magnets, in passing along such conduit
towards the point of discharge, will, upon being released by the magnets, be caused to
pass or fall into a special receptacle or place of discharge, i.e., a place other than the

page_text: receptacle of a machine to which the seed, meal, or the like, is to be delivered, so
that such metal, under no circumstances, can pass to the same spot or place to which
the seed, pulverulent, or like material passes. Further, according to this invention,
upon the current being stopped from any cause, the supply of material from the supply
hopper or shoot, is automatically cut off simultaneously, with the operation of the
means by which the metal is delivered separately from the grain, meal, or the like,
whereby at these times no meal or seeds, or the like can pass with the metal.
In one form of apparatus operating according to this invention, the hopper is
provided with a valve or like device, by which the discharge of seed, meal, or the
like, therefrom, is given when the current is on, and cut off when the current is
off. This is conveniently effected by providing in the conduit or shoot down
which the material falls, a movable part which is pulled down or actuated by the
magnets when the current is on, but when the current is off. the valve or cut-off
device closes and moves such part away from the magnets, the connection between
the moving parts and the cut-off device being provided with means of adjustment
for regulating the movement. The magnets for holding and arresting the metal
passing down the shoot or conduit, are arranged under such shoot, and act upon
the metal through the shoot bottom. At the lower end of the shoot or conduit in
this arrangement, a hinged valve or plate is provided, which forms part of the
shoot bottom, or works in connection therewith; and it is so arranged that when
the current is on, it is moved by magnets so as to practically lie flush with the bottom
of the conduit, or form part thereof; and when the current is off, its front edge
rises and the metal which has been separated by the magnets from the material,
will be released by the cutting off of the current, falls from the conduit down
under the valvular device to a receptacle, or point of discharge, separate from
that of or for the seeds, meal, or the like.
In some cases, also, the bottom of the hopper is agitated to render the supply more
certain, and this is conveniently effected by the employment of magnets which
cause such bottom to be moved in one direction, the movement in the reverse or
back directi. n being effected by springs supporting it, or connected with it. There
may also be used in connection with the apparatus a sounding alarm or gong by
which when the machine is stopped or the current cut off, or at other times, is
automatically sounded.
When the invention is applied and used in connection with the machines for
operating upon seeds, meal, or the like, in a mill or works, and the electricity is
generated when the machinery or motive power of the works is set in action, and
ceases when it stops, the invention provides means of automatic supply and
cut off to the different machines in the works in connection with which it is used;
so that when the machinery is stopped from a breakdown, or purposely, the fed to
the different machines automatically ceases, and the metal arrested by the apparatus
is released, and is prevented from falling into the machines or feed hoppers thereof,
and conducted to a separate receptacle or point of deposit. In some cases, a switch
device is provided on the apparatus, by which the current to and from the magnets
is turned on and cut off, periodically, to allow of the removal of the metal arrested by
the magnets and adhering to the bottom of the conduit or shoot of the apparatus.
The invention is not confined to the particular construction, arrangement or
combination of parts specified in the apparatus more particularly described herein,
but may be modified in various ways as to these without departing from its general
features or characteristics, and applied to different kinds of materials.
An apparatus illustrating the invention and having characteristics above specified,
is shewn in the accompanying drawings, in which Figure 1 is a sectional elevation,
and Figure 2 is a plan.
Referring to the drawings, a is a feed hopper to the machine to which the material
to be operated upon is supplied. b is a valve controlling the discharge from the lower
part a' of this hopper to the inclined shoot down which the material passes.
care the
electro magnets by which the metal pieces or articles such as referred to, are arrested
upon the inclined shoot.
i

page_text: In the machine, the floor proper of the shoot consists of a fixed or stationary metal
plated, secured suitably in position; and a movable part, hinged at el in the side
frames of the machine, and adapted to move up and down about this hinge. Then,
at a point below the part d, there is a trap valve h, which, when the apparatus is
supplying or feeding material, practically serves as the discharge or lower end of the
floor of the shoot; but when the supply ceases, and the electric current to the
magnets is shut off, acts a valve as hereafter described. Below this part there is a
plate ', which receives and guides the metal pieces when they are discharged.
The floor of the machine is set at such an angle as will cause the imaterial to
flow down it at a suitable rate; and under it there are several rows of electro
magnets e so as to provide very considerable magnetic force over the whole shoot floor,
down which the material passes. The upper se's of these magnets c act in connection
with the hinged part e of the floor; and the lower set of magnets acts upon or in
connection with the upper edge of the valve h. These magnets will, of course, be
controlled by a suitable switch by which at any moment the action of the machine
can be stopped.
In action, assuming the electro-magnetic circuit is closed, and those magnets
energised, the valve & for controlling the supply through the apparatus is raised;
this being done by the upper hinged part e of the shoot floor being drawn down by
the magnets under it, so lifting the valve b, through the intermediate connections
consisting of the lever b, and the connecting rod e². The valve h at the lower
part of the shoot, will also be drawn down by the magnets e to the position shewn
in full lines; and it will therefore form a continuation of the shoot floor. The
valve being thus opened, the material from a flows by gravity (the inclination
being such as to effect this flow), and in passing down the shoot is subjected to
the influence of the magnets c, and any iron or steel nails, or other pieces, which
may exist in the material, will be arrested upon the metal floor of the shoot,
before they arrive at the front or leading edge of the trap valve h; and the meal,
seed, or other material, thus ridded of these metallic matters, passes on down over the
valve to the hopper or inlet of a machine in which it is to he treated or operated
upon, or to any suitable point. When the shoot floor d becomes covered to a
certain extent with nails, or other metallic pieces, they are removed by simply
opening the electro circuit of the magnets c, which causes their action upon the
shoot floor, and the metal pieces, to cease; the effect being, that the trap valve h
(by the weight at its lower end) falls into the position shewn in dotted lines,
and the valve is released from the pull of the magnets at the top, through the
part e, and falls by its own weight, lifting the part e up about its hinges at e.
Thus, instantly, the supply of the material from a' is cut off, and the metal pieces
on the floor slide down and pass through it, under the leading edge of the
valve h, in the direction shewn. The floor having thus been cleared, by again
closing the electric circuit about the magnets, the parts instantly resume their normal
operative positions; namely, e is pulled down, b thereby opened, and h moved into
line with the floor d, and the action of the machine goes on as before.
In the case where this machine is used to feed machines in. a mill, such as a
seed or grain crushing or milling mill, if the current for energising the magnets c
be generated by a dynamo driven by the mill engine or machinery, and a break-
down or stopping of the engine or machinery takes place (and consequently the
generation of electricity stopped), the action of this machine stops, and the willing
or other machine which it serves to feed with material, will, consequently, have
its supply automatically cut off and so prevented from becoming choked or
over-fed.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
1. Effecting the separation of metals from seeds, meal, and other granular or
pulverulent substances, by passing the material down a shoot or conduit under the

page_text: influence of electro-magnets, whereby the metal pieces are arrested on the floor-
thereof, and by then stopping the action of the magnets, whereby the separated metal.
pieces are released, and a valve or trap device below is simultaneously released and
operates, and the said metal pieces discharged at a point other than that at which the.
meal or material is normally discharged; substantially as and for the purposes set.
forth.
2. The herein described improved machine for separating metals from seeds, meal,
and other granular or pulverulent substances, for the purposes specified, comprising a
shoot down which said material is passed, the floor of which is under the influence of
electro-magnets, and having means controlled by electro magnets for automatically
controlling the supply of the material, and for the removal of separated metal;.
substantially as set forth.
3. In apparatus for separating metals from materials as specified and used for
feeding such material to machines, a conduit down which the material passes having
electro-magnets in connection with it; and a supply or feeding valve or shutter
controlled by electro-magnets, and adapted, when the current to said magnet ceases,.
to automatically cut off the supply of such material: operating substantially as and
for the purposes set forth.
4. A machine for separating metals from seed, meal, and other granular or
pulverulent substances, for the purposes specified, consisting of an inclined shoot down
the floor of which the material is passed; electro-magnets below said floor; a valve at.
the upper part controlled by electro-magnets, and controlling the supply of material;
and a trap or valve at the lower part of the floor adapted to separately deliver the.
arrested or separated metal; operating substantially as herein set forth and shewn in
the drawings.
5. The machine for separating metals from seeds, meal, and other granular or
pulverulent substances consisting of the combination and arrangement of parts,.
particularly as shewn in the drawings, and set forth with reference thereto.
Dated this 5th day of December 1896.
CHEESBROUGH & ROYSTON,
15 Water Street, Liverpool, Applicant's Patent Agents..