A Machine for the Extraction of Liquid from Sewage Sludge and other Substances.
Year: 1897

page_text: Date of Application, 30th Aug., 1897
Complete Specification Left, 28th June, 1898-Accepted, 30th July, 1898
PROVISIONAL SPECIFICATION.
A Machine for the Extraction of Liquid from Sewage Sludge and
other Substances..
CHARLES JAMES LOMAX, 19 and 20, Grosvenor Chambers, Deansgate, Manchester,
Civil Engineer, I do hereby declare the nature of this invention to be as
follows:
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The machine is composed of a cillinder in which a screw or conveyor revolves.
The machine may be constructed in many shapes, the case in which the screw
revolves may in one way be constructed as follows. The internal case of steel or
other metal perforated as desired. The external case of steel or other metal per-
forated as desired; between the internal & external case the cloth or other straining
material may be placed. The blades of the screw or conveyor in revolving remove
the cake of sludge which is deposited on the internal case. The sludge or other
The
material being forced into the machine by compressed air or other means.
cake of sludge deposited on the internal case is removed by the screw or conveyor
& carried to the outlet at one end of the machine which outlet can be expanded or
contracted as desired.
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1907
A Machine for the Extraction of Liquid from Sewage Sludge and
other Substances.
1, CHARLES JAMES LOMAX, of 19 and 20, Grosvenor Chambers, Deansgate, Man-
chester, in the County of Lancaster, Civil Engineer, do hereby declare the naturo
of my said invention and in what manner the same is to be performed, to be par-
ticularly described and ascertained in and by the following statement:
-
The machine is composed of a cylinder in which a screw or conveyor revolves.
The machine may be constructed in many shapes; the case in which the screw
revolves may in one way be constructed as follows. The internal case of steel or
other metal perforated as desired. The external case of steel or other metal per-
forated as desired, between the internal and external case the cloth or other straining
material may be placed. The blades of the screw or conveyor in revolving remove
the cake of sludge which is deposited on the internal case. The sludge or other
material being forced into the machine by compressed air and other means. The
cake of sludge deposited on the internal case is removed by the screw or conveyor
and carried to the outlet at one end of the machine which outlet can be expanded
or contracted as desired.
DESCRIPTION OF DRAWINGS.
Fig. 1 is a sectional elevation of my new or improved machine for the extraction

page_text: of liquid from sewage sludge and other substances. Fig. 2 a plan of Fig 1.
Fig. 3 a section through line A B in Fig. 1, and Fig. 4 a part sectional elevation
showing a solid screw or conveyor.
C is the cylinder; 1) screw or conveyor; E inlet pipe; F outlet; G valve;
H standards; M screw or conveyor shaft; J counter shaft; K driving pulley, and
L loose pulley.
In all the figures the same letters and numerals are employed to indicate
corresponding parts.
The cylinder C is composed of steel or other metal and is provided with the per-
forations N; the latter being of any desired or necessary number and of any
required diameter. The cylinder C is provided with the metallic end secured
thereto by the rivets l' or their equivalents. If desired the metallic end O may
be bent or formed with the cylinder C. To the metallic end O is secured by bolts
or other means the cover R provided with the stuffing box S and gland T for sup-
porting the gearing end of the screw or conveyor shaft M in conjunction with the
bearing N on the standard H; the other end of the screw or conveyor shaft M
being supported in the bearing Von the standard H. The outside of the
cylinder is fitted with the T iron rings X to strengthen the same and support
the steel or other bars W forming the external case of the machine; the steel or
other bars W being disposed as shown in Figs. 2 and 3 to form openings to allow
of the escape of liquid extracted from sewage under treatment. The steel or other
bars Ware supported by the metallic end O, standards I, and inlet end Q of the
.outlet pipe F. Between the outer diameter of the cylinder C and the inner edges
of the steel or others bars W forming the outer casing is disposed cloth or other
straining material of any suitable nature.
2
The sewage sludge or other substance
is conveyed by pumping from any convenient source and is delivered to the machine
through the pipes E and valve 2 attached to the end cover R at the inlet end of
the cylinder C. To the pipe E is fixed the pipe 72 for conveying compressed air
supplied from an air compresser suitably disposed. The blades of the screw or
conveyor D on the shaft M in revolving removes the cake of sludge which is de-
posited on the inner surface of the internal perforated cylinder C, and forces the
same gradually towards and finally into the parallel and outlet end of the same to
the outlet F and sludge valve G. During the passage of the sewage sludge from
the inlet pipe E to the outlet pipe F the liquid matter is drained through the cloth
or other straining material z, and the cake of sludge deposited on the internal
case C has been traversed by the screw or conveyor D to the outlet end F of the
machine. If desired the cylinder C and the screw or conveyor D may be of one
uniform diameter from end to end. The screw or conveyor shaft M is fitted with
the spur wheel into which gears the spur wheel or pinion f on the shaft J mounted
in the bearings g; the shaft J being provided with the driving pulley K, which is
driven by a belt from any convenient source. To allow of the machine being
stopped when desired the shaft J is provided with the loose pulley L.
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: :-
The general arrangement, construction, and combination of parts composing the
machine for the extraction of liquid from sewage sludge and other substances, the
whole being applied and operating substantially as described and as illustrated in
the annexed drawings.
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2000