Improvements in Separators more especially Designed for Screening or Separating the Fine Material from the Coarser Material of Argillaceous Earth, Mineral-bearing Earth, and the like.
Year: 1899

page_text: Date of Application, 13th July, 1899
Complete Specification Left, 14th Mar., 1900-Accepted, 12th May, 1900
PROVISIONAL SPECIFICATION.
Improvements in Separators more especially Designed for Screening
or Separating the Fine Material from the Coarser Material of
Argillaceous Earth, Mineral-bearing Earth, and the like.
I, HERBERT JOHN HADDAN, of the Firm of Herbert Haddan & Co., of 18,
Buckingham Street, Strand, London, l'atent Agent, do hereby declare the nature
of this invention a communication to me from abroad by Phineas Adolphus Arnold,
of Canal Dover, County of Tuscarawas, State of Ohio, United States of America,
Manufacturer, to be as follows:-
This invention relates to improvements in separators more especially designed
for screening or separating the fine material from the coarser material of
argillaceous earth mineral-bearing earth and the like.
The primary object of this invention is to provide a separator that is very
suitable for treating argillaceous earth; that has a large capacity, and requires
comparatively little room; that is self-cleaning, and does not vibrate the building
containing it.
I
With this object in view, and to the end of realizing other advantages herein-
after appearing, the invention consists in certain features of construction, and
combinations of parts, hereinafter described.
In the accompanying drawings Figure 1 is a top plan of a separator embodying
my invention, and in this figure the hood of the separator is swung back so as to
illustrate the arrangement of the shovels and brushes of the separator. In this
figure the mesh of the screen is not shown or shaded, to avoid confusion in the
drawing.
Fig. 1 is an end elevation of the separator, but in this figure, the hood is shown
in its closed position.
Fig. III is a side elevation of the separator, and in this figure, the machine's
hood is shown in its closed position, and portions are broken away and in section
to more clearly show certain features of construction.
Fig. IV is a transverse section of the screen and shows one of the spiders that
carry the shovels and brushes and shows, also, the portion of the shaft that bears
the said spider.
Referring to the drawings, h designates an oblong hopper that is provided
with a screen s that is, preferably semi-cylindrical or arc-shaped in end
elevation, and is arranged within and extends from end to end of the hopper h.
The said screen is reinforced, preferably by a correspondingly shaped metallic
frame that forms a seat for the screen and, at its upper end, is provided with
laterally projecting external flanges f¹ that overlap and rest upon the hopper h.
It will be observed, therefore, that the frame f and its load (the screen) can, upon
removing the device or devices, employed in shovelling and feeding the material
over the screen, be removed upwardly from the aforesaid hopper.
The inclined chute c is arranged to discharge upon one end of the aforesaid
L

page_text: screen and forms the passage-way for supplying the material to be treated to the
aforesaid screen. The fine material descends through the screen into the hopper h
below the screen, and the coarser material is fed, as will hereinafter appear,
along the screen to the latter's rear end, where it is discharged into a hopper
receptacle or passage-way provided for its reception. The material that is
received by hopper h is, preferably conveyed forwardly by a screw conveyor t
arranged within and extending longitudinally of the said hopper below the screen
and having its discharging end arranged to deliver to a hopper or receptacle r.
To enable the screw conveyor to feed all of the material received in hopper h,
the hopper's sides converge downwardly into close proximity to opposite sides
respectively of the conveyor.
The apparatus employed for shoveling and distributing and feeding the material
received by the aforesaid screen comprises a suitably driven and suitably supported
horizontally arranged or approximately horizontally arranged shaft that is
arranged at the top and centrally and longitudinally of the screen, and the form
of the screen in end elevation, should be concentric of the aforesaid shaft.
A series of spiders are mounted upon the shaft at suitable intervals lengthwise
of the shaft. The spiders 6 are arranged, preferably, about six inches apart.
Each spider, in the case illustrated, has a hub & that embraces the shaft a and
is provided with a set screw be for attaching the spider to the shaft. Each spider
has three arms 63 63 63, arranged radially and equi-distant apart circumferentially
of the spider's hub, and each of the said arms, at its outer end, has two lugs
or flanges b arranged transversely of the axial line of the spider and formed upon
opposite sides, respectively, of the arm, and each of the said lugs or flanges is
provided with a perforation arranged parallel with the arm. The forward
hole of each arm, that the hole in the forward lug of each arm, (and the forward
lug of each arm is that lug that projects from the arm in the direction in which
the arm revolves during the rotation of the shaft) is engaged by the shank d¹
of a shovel d and the said shovel is adjustable toward and from its support and is
secured in the desired adjustment by two nuts de mounted upon the correspond-
ingly threaded shank of the shovel at opposite ends, respectively, of the perfora-
tion that is engaged by the said shank. The other lug of each arm of the
spider (that is, the arm's rear lug that projects from the arm in a direction
opposite to the direction to which the arm revolves during the rotation of the
shaft) is provided with a perforation 66 that is arranged parallel with the arm
and engaged by the shank or stem e¹ of a brush e that is adjustable toward and
from its support and secured in the desired adjustment by two nuts e² ² mounted
upon the correspondingly threaded shank of the brush at opposite ends, respec-
tively of the perforation 66 that is engaged by the said shank. The brushes are
arranged preferably longitudinally of and parallel with the screen, and have such
adjustment, relative to the screen's inner or upper side, as will enable them to
sweep the screen during their revolution. Instead of providing a brush at the
rear of each shovel, one brush only may be employed upon each shovel-carrying
spider.
The shovels have such arrangement, relative to the screen's inner or upper side,
that their sweep shall extend into close proximity to the upper or inner side of
the screen so that they shall lift or elevate the material upon the screen during
their revolution. The shovels have, furthermore, such arrangement as will enable
them not only to lift or shovel and distribute the material received upon the screen,
but also to feed the material toward the rear end of the screen, so that the coarser
material that does not descend through the screen into hopper h, will be con-
veyed rearwardly along the screen and thence into receptacle r.
In the case
illustrated therefore, the blade of each shovel is arranged diagonally of the shaft
and so as to face not only in the direction in which the shovel revolves during
the shaft's rotation, but also in the direction of the rear end of the screen and
inclines rearwardly from its shank. The shovels of each spider, have such

page_text: arrangement relative to the shovels of the remaining spiders as will place each
shovel of each spider in a path extending spirally around the shaft, and it will
be observed that, in the case illustrated, there are three spiral series of shovels,
and each series comprises one of the shovels upon each of the shovel bearing
spiders. To facilitate the observation of the different spiral paths in Fig. I, the
shovels in one of the said paths are marked 1 the shovels in another spiral path
are marked 2, and the shovels in the remaining spiral paths are marked 3.
The hopper is provided, preferably, with a hood or cover h¹ for closing the
same from above and thereby covering the shaft and the latter's attachments.
P
1000
Improvements in Separators more especially Designed for Screening
or Separating the Fine Material from the Coarser Material of
Argillaceous Earth, Mineral-bearing Earth, and the like.
I, HERBERT JOHN HADDAN, of the Firm of Herbert Haddan & Co., of 18,
Buckingham Street, Strand, W.C., London, Consulting Engineer, do hereby
declare the nature of this invention, a communication to me from abroad by
Phineas Adolphus Arnold, of Canal Dover, County of Tuscarawas, State of Ohio,
United States of America, Manufacturer, 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 screening and separating apparatus
more especially designed for screening and separating the fine material from
the coarser material of argillaceous earth, mineral-bearing earth, etc.
The object of this invention is to provide apparatus, of the character indicated,
that comprises a stationary screen arranged concentrically of the lower side of a
suitably operated shaft provided with a plurality of spirally arranged series of
shovels having such an arrangement that unscreened material that is lifted bý
a shovel of one of the spirally arranged shovels is, if not screened during the
ascent of the said shovel, during the shovel's revolution, deposited in the direc-
tion of the discharging end of the machine, upon a shovel of the adjacent spirally
arranged series of shovels, and is again elevated and partially screened, and so on
until all of the screenable material has been deposited upon and passed through
the meshes of the screen.
Another object of the invention is to clean the screen, from end to end and from
side to side, during each revolution of the shovel-bearing shaft, to so construct
and arrange the parts that the floor-space required and the amount of power
necessary for operating the machine are reduced to a minimum; to render all of
the parts of the machine easily accessible, to render the operation of the machine
comparatively noiseless and dustless, and avoid jarring or vibration of the build-
ing containing it, and to provide a machine that is simple and durable in con-
struction, and has an exceedingly large capacity.
With these objects in view, and to the end of realizing other advantages herein-
after appearing, the invention consists in certain features of construction, and
combinations of parts, hereinafter described.
In the drawings filed with my Provisional Specification, Fig. 1 is a top plan
of screening or separating apparatus embodying the invention, and in this fig.
the hood of the machine is swung back so as to illustrate the arrangement of the

page_text: shovels and brushes of the apparatus. In this fig. the mesh of the screen is not
shown or shaded, to avoid confusion in the drawing.
Fig. II is an end elevation of the apparatus, but in this fig. the hood is shown
in its closed position.
Fig. III is a side elevation of the apparatus, and in this fig. the machine's
hood is shown in its closed position, and portions are broken away and in section
to more clearly show certain features of construction.
Fig. IV is a transverse section of the screen and shows one of the spiders that
carry the shovels and brushes and shows, also the portion of the shaft that bears
the said spider.
Referring to the drawings, h designates an oblong hopper that is provided with
a stationary screens that is, preferably, semicylindrical or are-shaped in end
elevation, and is arranged within and extends from end to end of the hopper h.
The said screen is reinforced preferably, by a correspondingly shaped metallic
frame that forms a seat for the screen and, at its upper end, is provided with
laterally-projecting external flanges f¹ tlíat overlap and rest upon the hopper h.
It will be observed, therefore, that the frame f and its load (the screen) can, upon
removing the device, or devices, employed in shovelling and feeding the material
over the screen, be removed upwardly from the aforesaid hopper.
The inclined chute c is arranged to discharge upon one end of the aforesaid
screen and forms the passage-way for supplying the material to be treated to the
aforesaid screen. The fine material descends through the screen into the hopper h
below the screen, and the coarser material is fed, as will hereinafter appear,
along the screen to the latter's rear end, where it is discharged into a hopper
receptacle or passage-way provided for its reception. The material that is
received by hopper is, preferably, conveyed forwardly by a screw-conveyer t
arranged within and extending longitudinally of the said hopper below the screen
and having its discharging end arranged to deliver to a hopper or receptacle .
To enable the screw-conveyer to feed all of the material received in hopper,
the hopper's sides converge downwardly into close proximity to opposite sides
respectively, of the conveyer.
A
The apparatus employed for shovelling and distributing and feeding the material
received by the aforesaid screen comprises a suitably driven and suitably supported
horizontally arranged or approximately horizontally arranged shaft a that is
arranged at the top and centrally and longitudinally of the screen, and the form
of the screen in end elevation, should be concentric of the aforesaid shaft.
series of spiders bare mounted upon the shaft at short intervals longitudinally
of the shaft. Each spider, in the case illustrated, has a hub b that embraces the
shaft a and is provided with a set-screw 2 for adjustably securing the spider to
the shaft. Each spider has three arms 3, 63, 63, arranged radially and equi-
distant apart circumferentially of the spider's hub, and each of the said arms, at
its outer end, has two lugs or flanges and be arranged transfersely of the axial
line of the spider and formed upon opposite sides, respectively, of the arm, and
each of the said lugs or flanges is provided with a perforation barranged parallel
with the arm. The forward hole of each arm, that is the hole in the forward
lug of each arm, (and the forward lug of each arm is that lug that projects from
the arm in the direction in which the arm revolves during the rotation of the
shaft) is engaged by the shank d¹ of a shovel d, and the said shovel is adjustable
toward and from its support and is secured in the desired adjustment by two
nuts mounted upon the correspondingly threaded shank of the shovel at
opposite ends, respectively, of the perforation that is engaged by the said shank.
The other lug of each arm of the spider b, (that is, the arm's rear lug that pro-
jects from the arm in a direction opposite to the direction to which the arm
revolves during the rotation of the shaft) is provided with a perforation 66 that
is arranged parallel with the arm and engaged by the shank or stem e¹ of a
brush e that is adjustable toward and from its support and secured in the desired

page_text: adjustment by two nuts e²e mounted upon the correspondingly threaded shank
of the brush at opposite ends, respectively, of the perforation 66 that is engaged
by the said shank. The brushes are arranged, preferably, longitudinally of and
parallel with the screen, and have such adjustment, relative to the screen's inner
or upper side, as will enable them to sweep the screen during their revolution.
Instead of providing a brush at the rear of each shovel, one brush only may be
employed upon each shovel-carrying spider. Preferably the arrangement and
length of the brushes are such that the sweep of the brush or brushes of each
shovel-carrying spider shall somewhat encroach upon or extend into the sweep
of the brush or brushes upon the adjacent spider or spiders so that the screen has
its entire screening surface swept during each rotation of the shovel-bearing shaft.
The shovels have such arrangement, relative to the screen's inner or upper side,
that their sweep shall extend into close proximity to the said side of the screen
so that they shall lift or elevate the material upon the screen during their revolu-
tion. The shovels have, furthermore, such arrangement as will enable them,
not only to lift or shovel and distribute the material received upon the screen,
but also to feed the material toward the rear end of the screen, so that the coarser
material that does not descend through the screen into hopper h, will be con-
In the case
veyed rearwardly along the screen and thence into receptacle r.
illustrated, therefore, the blade of each shovel is arranged diagonally of the shaft
and so as to face not only in the direction in which the shovel revolves during the
shaft's rotation, but also in the direction of the rear end of the screen and inclines
rearwardly from its shank. The shovels of each spider have such arrangement
relative to the shovels of the remaining spiders as will place each shovel of each
spider in a path extending spirally around the shaft, and it will be observed that,
in the case illustrated, there are three spiral series of shovels, and each series
comprises one of the shovels upon each of the shovel-bearing spiders. To facili-.
tate the observation of the different spiral paths in Fig. I, the shovels in one of
the said paths are marked 1. the shovels in another spiral path are marked 2,
and the shovels in the remaining spiral path are marked 3.
The hopper is provided, preferably, with a hood or cover for closing the
same from above and thereby covering the shaft a and the latter's attachments.
By the construction hereinbefore described, the noise and dust occasioned by
a revolving screen is effectually avoided, and as the screen is stationary the power
required in the operation of the shaft is reduced to a minimum. The stationary
screen, in combination with the peculiar arrangement of shovels, results in the
operation of the said parts to the best advantage, especially so far as a large
capacity of the machine is concerned, and the brush or brushes of each spider
of the shovel-revolving shaft are independent of the brush or brushes of the
remaining spiders, so that each brush of each spider can extend somewhat into the
sweep of the brush or brushes of the adjacent spiders, as shown in Fig. I, and
not only avoid interference with the other brushes or members of the machine
but operate, to the best advantage in thoroughly cleaning the screen during
each rotation of the shovel-bearing shaft.
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. Apparatus of the character indicated, comprising a horizontally arranged or
approximately horizontally arranged shaft; a stationary screen arranged or
extending longitudinally and concentrically of the lower side of the shaft, and a
plurality of spirally arranged series of shovels carried by the shaft and having
such relative arrangement that the material, elevated and not screened during its
elevation by a shovel of one series of shovels, shall drop downwardly in the direc-
tion of the discharging end of the machine upon a shovel of another series of
shovels, substantially as and for the purpose set forth.

page_text: 2. Apparatus of the character indicated, comprising a horizontally arranged or
approximately horizontally arranged shaft; a stationary screen arranged or
extending longitudinally and concentrically of the lower side of the shaft; spiders
operatively mounted upon, and at suitable intervals longitudinally of, the shaft
provided, respectively, with three shovels arranged at equal intervals circumfer-
entially of the shaft and having such arrangement relative to the shovels of the
remaining spiders that three series of shovels, arranged in a path extending
spirally around the shaft, shall be formed, all arranged and operating substan-
tially as shown, for the purpose specified.
3. The combination of the stationary screen s, the shaft a, the spiders opera-
tively mounted upon the shaft and having arms whose outer ends are provided
with flanges bearing brushes arranged to sweep the inner side of the screen, and
have other flanges bearing rearwardly inclining shovels that face toward the
discharging end of the machine and in the direction in which they revolve,
substantially as and for the purpose set forth.
4. In apparatus of the character indicated, a horizontally arranged or approxi-
mately arranged shaft; a stationary screen arranged concentrically of the lower
side of the shaft and extending longitudinally of the shaft; the spider secured
upon the shaft and having, respectively, radially arranged arms; the shovels d
supported from the said arms, and a brush supported from each spider indepen-
dently of the brushes of the remaining spiders, and the arrangement and length
of the brushes being such that the entire screening surface of the screen shall be
swept during each rotation of the shaft.
5. The combination, with the stationary screens, of the shaft a, spiders b
adjustably secured upon the shaft and having each of its arms provided, respec-
tively with two flanges 6 and 6, the shovels & and the brushes e, all arranged
and operating, substantially as shown for the purpose specified.
6. The combination with the stationary screens, and the shaft a, of the
spiders b secured upon the shaft each spider having three radial arms, 63 63 and 63,
provided respectively, with the two flanges 14 64 perforated as at 65 and 66
respectively, the shovels & having the screw-threaded shanks ¹, the nuts d³, the
brushes e having the threaded shanks e', and the nuts e² all arranged and operat-
ing substantially as shown, for the purpose specified.
Dated this 14th day of March 1900.