Rering similar Treatment.
Year: 1885

page_text: Substances Requiring similar Treatment.
I, JAMES BINGHAM ALLIOTT, of Radford, Nottingham, Engineer, do hereby
declare the nature of my said Invention for "IMPROVEMENTS IN METHODS OF AND
APPARATUS FOR TREATING MUD, SLOP OR SWEEPINGS REMOVED FROM ROADS, AND
OTHER LIKE SUBSTANCES REQUIRING SIMILAR TREATMENT," to be as follows that
is to say :-
The mud, slop or sweepings removed from roads and other public places consists
in part of almost impalpable particles of mud or dust but these are mixed with a
proportion of sand and small stones and also with horse droppings straw, wood, and
other organic matter. The improved method of treating such sludge or sweepings
consists in arrangements for separating its various constituents from one another so
as to utilize those which are of value and permit of the more ready disposal of the
other portions. For this purpose when the material to be treated consists of mud
or slop it is emptied into a tank provided preferably with an inclined bottom so
that the heavier portions of the slop may more readily pass from the tank in
combination with the lighter and more liquid portions and in some cases this tank
is provided with a stirrer or agitator to assist in attaining the above end. At its
lower part this tank has a suitable valve by means of which the slop may flow in
regulated quantity into one end of a trough or tank placed at a lower level, and
having by preference a semi-cylindrical bottom. The bottom of this trough or
tank is arranged on an inclination and within the tank there is placed a shaft
carrying blades or arms arranged so as nearly to touch the bottom of the tank and
in revolving to force any solid materials resting upon the bottom up the incline so
that they may eventually drop through an opening in the bottom near the upper
end of the trough. The inclination of the bottom of the trough is so arranged that
water contained in it may overflow through an opening in the end of the trough at
its lower end rather than through the opening in the bottom of the trough near its
upper end. Near the upper end of the trough there is provided a means of
supplying water to the trough. The slop admitted in a constant regulated stream
into the lower end of this inclined trough drops into the water contained within it
and is there agitated by the blades or arms carried by the shaft already described,
which shaft is caused to revolve by any suitable means. When so agitated the

page_text: finer particles contained in the slop remain suspended in the water and pass away
with it through the opening in the lower end of the trough. In like manner a
great part of the organic matter being of lighter specific gravity than the water
rises to the surface and passes away through the opening at the lower end of the
trough. To assist in attaining this result a division may be introduced at some
little distance from the lower end extending for a little distance above and below
the surface of the water so as to prevent any material being carried along the
surface of the water toward the upper end of the trough while it shall not prevent
the passage of water downwards toward the lower end nor the passage of the
more solid material moved by the blades along the bottom toward the upper
end. After passing through this opening the organic matter may be separated
from the dirty water by means of sieves or in any other convenient way. The
larger portions of sand or stone fall to the bottom of the trough, and as the shaft
with the blades it carries revolves these larger particles of sand or stone are forced
constantly higher and higher up the inclined bottom of the trough while at the
same time they are still agitated by the blades and are met by the current of clean
or comparatively clean water admitted near the upper end of the trough and
flowing towards the opening in the bottom end. Thus the sand and pebbles are
constantly being washed freer from the fine mud and eventually are delivered in a
cleansed condition through the opening at the upper end of the trough. As the
sand, stone &c. drops through this opening it is received upon sieves so arranged
that the fine sand may be separated from the coarser sand and both from the
pebbles. Should it be found that a certain quantity of organic matter passes along
with the sand and pebbles to the upper end of the trough and is discharged with
them upon the sieves, arrangements may be made for separating this material from
the sand and pebbles. The sieves are so arranged that the fine sand, coarser sand
and pebbles, are each separately delivered into a suitable receptacle. The dirty
water carrying with it the finer particles of dust or mud passes away through the
opening in the lower end of the inclined trough and after having been passed
through a sieve so that the larger portions of organic matter such as straws, pieces
of wood &c. may be retained, flows into settling tanks in which the mud gradually
deposits, after which the excess of water may be drawn off in a manner well known
and may be used again for washing fresh quantities of mud or slop.
When the sweepings to be treated are dry dust instead of slop, this dust may be
either mixed with water in the upper tank and thus made into slop, or it may be
fed in a dry or semi-dry state into the water at the lower end of the inclined trough
when it will become mixed with the water and the operations of washing and
separating will be effected as already described.
It is obvious that the Invention is applicable to the treatment of other substances
than the foregoing, such as for example the washing and separating of cements,
brick dust and granite chips.

page_text: Substances Requiring similar Treatment.
I, JAMES BINGHAM ALLIOTT, of Radford Nottingham, Engineer, 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:
The mud slop or sweepings removed from roads and other public places consists
in part of almost impalpable particles of mud or dust but these are mixed with a
proportion of sand and small stones and also with horse droppings, straw, wood and
other organic matter. My improved method of treating such sludge or sweepings
consists in arrangements for separating its various constituents from one another
so as to utilize those which are of value and permit of the more ready disposal of
the other portions. For this purpose when the material to be treated consists of
mud or slop it is emptied into a tank provided preferably with an inclined bottom
so that the heavier portions of the slop may more readily pass from the tank in
combination with the lighter and more liquid portions, and in some cases this tank
is provided with a stirrer or agitator to assist in attaining the above end. At its
lower part this tank has a suitable valve by means of which the slop may flow in
regulated quantity into one end of a trough or tank placed at a lower level and
having by preference a semi-cylindrical bottom. The bottom of this trough or
tank is arranged on an inclination and within the tank there is placed a shaft
carrying blades or arms arranged so as to nearly touch the bottom of the tank and
in revolving to force any solid materials resting upon the bottom, up the incline sо
that they may eventually drop through an opening in the inclined bottom near its
higher end. The inclination of the bottom of this trough is so arranged that
water contained in it may overflow through an opening in the end of the trough
at its lower or deeper end rather than through the opening in the inclined bottom
near its higher end. Suitable means are provided near the upper end of the
trough for supplying water when required to the trough. The slop admitted in a
constant regulated stream from the first tank into the lower end of the inclined
trough drops into the water contained therein, and is there agitated by the blades
or arms carried by the shaft hereinbefore described which shaft may be rotated by
any convenient and suitable means. When so agitated the finer particles contained
in the slop remain suspended in the water and pass away with it through the
opening in the lower end of the trough. In like manner a great part of the
organic matter being of lighter specific gravity than the water rises to the surface
and passes away through the opening at the lower end of the trough. To assist
in attaining this result a division may be introduced at some little distance from'
the lower end and this division extends for a short distance above and below the
surface of the water in the tank so as to prevent any material being carried along
the surface of the water towards the upper end of the trough while at the same
time it shall not prevent the passage of the water downwards towards the lower
end nor the passage of the more solid material moved by the rotating blades along
the bottom toward the higher end. After passing through this opening at the
i.

page_text: lower end any organic matter may be separated from the dirty water by means of
sieves or in any other convenient way. The larger particles of sand or stone fall
to the bottom of the inclined trough and as the shaft with the blades revolves these
larger particles are forced constantly higher up the inclined bottom of the trough
while at the same time they are still agitated by the blades and are met by the
current of clean or comparatively clean water admitted near the higher end of the
trough and flowing towards the opening at its lower end. Thus the sand and
pebbles are constantly being washed freer from the fine mud and eventually are
delivered in a cleansed condition through the opening at the upper end of the
trough. As the sand, stone and the like drops through this opening it is received
upon a series of sieves, so arranged that the fine sand may be separated from the
coarser sand and both from the pebbles. These sieves may be arranged to be
jigged or moved in any convenient and suitable manner. Should it be found that
any organic matter passes along with the sand and pebbles to the upper end of the
trough and is discharged with them upon the sieves arrangements may be made
for separating this material from the sand and pebbles. The sieves are also so
arranged that the fine sand coarser sand and pebbles are each separately delivered
into a suitable receptacle. The dirty water carrying with it the finer particles of
dust or mud passes away through the opening in the lower end of the inclined
trough and after having been passed through a sieve so that the larger portions
of organic matter such as straws, pieces of wood &c may be retained, flows into
settling tanks in which the mud gradually deposits, after which the excess of water
may be drawn off in any convenient manner and may be used again for washing
fresh quantities of mud or slop
When the sweepings to be treated are dry dust instead of slop this dust may
either be mixed with water in the first or upper tank and thus made into slop or
it may be fed in a dry or semi-dry state into the water at the lower end of the
inclined trough when it will become mixed with the water and the operations of
washing and separating will be effected as hereinbefore described.
It is obvious that the Invention is applicable to the treatment of other substances
than the afore-mentioned, such as for example the washing and separating of
cements, brick dust and granite chips and the like.
And in order that my said Invention may be properly understood I hereunto
append a sheet of explanatory drawings to be hereinafter referred to and
representing my improved arrangements of apparatus. In these drawings the
same reference numerals are used to mark the same or like parts wherever they
are repeated.
Figure, 1, on the accompanying sheet of drawings represents my improved
apparatus in side elevation, and in plan in Figure, 2. The mud or slop to be
treated is first emptied into a tank, 1, having an inclined bottom. This tank is
provided with a rough gridding, 2, for the purpose of retaining any large articles
which may have been collected with the mud or slop. The tank is arranged upon
a convenient framing, 3, so as to be at a higher elevation than the rest of the
apparatus and is provided with an opening at its deepest end having a valve, 4, for
regulating the outflow of the mud or slop, which falls into one end of a long
tank, 5, arranged below with one end just under the tank, 1. This tank, 5, has
preferably a semi-circular bottom, which is arranged at an inclination to the top
of the tank, so that the end furthest from the tank, 1, is shallower than the end
close to it. This tank, 5, is provided with an opening, 6, near the top at its deeper
end, and another opening, 7, is made near the upper end of the inclined bottom,
these two openings being nearly on the same level but with the opening, 6, below
the level of the opening, 7. Inside the tank, 5, there is arranged in suitable
bearings a shaft, 8, having blades or arms, 9, which just clear the semicircular
bottom when they rotate, which they are caused to do by bevil gearing, 10, fitted
to the shaft, 8, at the upper end of the tank. Motion is communicated to this bevil
gearing by means of pulleys, 11, in a well known manner. At a short distance
from the deeper end of the tank, 5, there is placed a division, 12, which extends a

page_text: short distance below and a short distance above the level of water in the tank,
which water is conveyed into this tank at its upper end by a cock (not shown) or
in any suitable and convenient way. The division, 12, whilst permitting water to
flow towards the deeper end and the heavier particles to be moved up the inclined
bottom, prevents any organic substance floating on the surface of the water from
passing to the opening, 7. The water flowing towards the opening, 6, at the
deeper end of the tank, 5, meets and mingles with the mud or slop falling from the
tank, 1, and overflows through the opening, 6, carrying with it the fine mud in
suspension and any organic matter floating on its surface. This opening, 6, is
provided with a spout, 13, which projects over a receiver, 14, for the water whence
the water flows by means of, a gutter, 15, into suitable and convenient settling
tanks, 16. The receiver, 14, is provided with a sieve, 17, for keeping back any
organic matter such as straws, pieces of wood and the like which may pass over
with the water and the water may be again passed through another sieve, 18,
before entering the settling tanks parts of which are only shown where the water
is allowed to remain until the fine mud is deposited, when the surplus water may
be drained off in any convenient and well known manner and may be used again
in the apparatus. The rotation of the blades on the shaft, 8, agitates the mud or
slop and water in the tank and gradually works any larger particles such as sand
and pebbles, up the inclined bottom of the tank until they reach the opening, 7,
through which they fall upon a suitable coarse screen, 19, placed under the opening
below the tank, 5. This screen, 19, has motion given to it by a tappet wheel, 20,
upon which the upper end of the screen rests. The tappet wheel, 20, is driven by
the pulley, 21, from a pulley, 22, below, this pulley, 22, being driven by a belt
from one of the pulleys, 11. The coarser particles screened by the screen, 19, are
delivered into suitable receptacles whilst the finer particles which pass through fall
upon another screen 23. This screen, 23, is arranged with its incline reversely to
the upper screen and has motion given to it similarly to the first screen by means
of a tappet wheel, 24, driven by a pulley, 25, geared by a belt to a pulley, 26, on
the shaft carrying the pulleys, 11. The apparatus is preferably arranged over a
pit which is provided with suitable means for draining it a gutter, 26, being formed
along its centre for this purpose and the top tank, 1, is placed in such a position
and height as to be convenient of access for emptying the mud or slop into it.
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:-
1. The improved method of treating the mud slop or sweepings removed from
roads and other like substances requiring such treatment substantially as herein-
before described.
2. The combination and arrangement of apparatus for. effecting this improved
treatment substantially as hereinbefore described with reference to the accom.
panying drawings.
3. The combination and arrangement of a rotating shaft (8) having arms (9)
within a tank (5) having a semi-circular inclined bottom and provided with
openings, (6, 7,) and a division (12) arranged with or without an upper tank (1)
and operating substantially as and for the purposes hereinbefore described with
reference to the accompanying drawings.
T
T
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