US2931290A - Method of and means for extracting liquid from materials which in bulk present foramina - Google Patents

Method of and means for extracting liquid from materials which in bulk present foramina Download PDF

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Publication number
US2931290A
US2931290A US616179A US61617956A US2931290A US 2931290 A US2931290 A US 2931290A US 616179 A US616179 A US 616179A US 61617956 A US61617956 A US 61617956A US 2931290 A US2931290 A US 2931290A
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United States
Prior art keywords
bellows
bag
foramina
materials
frame
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US616179A
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Davidson Maxwell Wingate
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Sanderson & Murray Ltd
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Sanderson & Murray Ltd
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    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01B—MECHANICAL TREATMENT OF NATURAL FIBROUS OR FILAMENTARY MATERIAL TO OBTAIN FIBRES OF FILAMENTS, e.g. FOR SPINNING
    • D01B1/00—Mechanical separation of fibres from plant material, e.g. seeds, leaves, stalks
    • D01B1/10—Separating vegetable fibres from stalks or leaves
    • D01B1/48—Drying retted fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B9/00—Presses specially adapted for particular purposes
    • B30B9/02—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material
    • B30B9/22—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using a flexible member, e.g. diaphragm, urged by fluid pressure

Definitions

  • This invention relates to a method of and means for the extraction of liquid from materials, such as fibrous or granular materials, which in bulk present foramina, and more particularly for the extraction of water from a mass of washed material such as textile fibres.
  • a wringing machine for extracting water from washing, incorporating a container, a bag suspended in the container and adapted to receive a-batch of washing, and means for compressing the bag; by thepressure of water admitted tothe container, so as to press water out of the washing.
  • Such a machine has the disadvantages that compression of the bag tends to cause folds in the bag which trap parts of the washing, it is possible to wring only one batch of washing at a time, and extraction of water from the bag necessitates the provision of a system of pipes for extraction of water from the bag.
  • the primary object of the present invention is to provide for extracting liquid from fibrous or granular materials in such wise that pressure is applied uniformly to the material.
  • a further object is to provide for the extraction of liquid from the material in a continuous manner.
  • the method according to the invention consists in the steps of bringing the material into contact with the outer face of an inflatable flexible bag, and inflating the bag by fluid pressure in such Wise that the part of the bag in contact with the material is tensioned uniformly by the fluid pressure and is caused to conform readily to the configuration of the material.
  • the material is preferably conveyed intermittently into contact with the bag.
  • a press for performing the method according to the invention incorporates a rigid frame, a flexible bag inflatable by pressure fluid and suspended from the frame, and an orificed plate or a screen located below and vertically spaced from the frame, the bag being adapted to press material from which liquid is to be extracted towards the plate or the screen.
  • the bag is preferably spring-urged in the direction towards the frame.
  • Fig. 1 is a side elevation of the press.
  • Fig. 2 is an end elevation.
  • Fig. 3 is a fragmentary side elevation of a flexible bag incorporated in the press.
  • Fig. 4 is a section of the bag.
  • Fig. 5 is a plan of the bag.
  • 1 denotes a flexible bag in the form of a bellows inflatable by fluid pressure and suspended from a rigid frame 2.
  • 3 denotes an orificed plate or screen supported by a frame 4 complementary to and vertically spaced from the frame 2.
  • An endless perforated conveyer belt preferably of resilient material, trained around end rollers 6, 7 and having a horizontal upper flight 5 is adapted to travel between nited States PatentO the frames 2, 4, and above the plate or screen 3 and to convey the material 8 from which liquid is to be extracted to a position beyond the bellows 1.
  • the driving means for the conveyer 5 is adapted to effect travel of the conveyer 5 in synchronism with operation of the bellows 1. These operations may be effected by equipment of the type disclosed in United States Patent No. 2,272,009, in which the operating fluid supplied to the piston 0-1 to move the platen 38 down, andlater exhausted therefrom, would be used to inflate and deflate the bellows 1 of the present application.
  • the upper face of the frame 4 (as illustrated in Fig. 3) is formed with a plurality of channels 9 leading to a trough 10 (Fig. l) which may be piped to a drain (not illustrated).
  • the lower flight 11 of the conveyer passes under guide rollers 12, 13 revoluble about horizontal axes in a framework 14 supporting the frames 2, 4 and the rollers 6, 7.
  • the bellows 1 is constituted by two resilient superposed sheets 15, 16 (Figs. 3 and 4) secured together at their marginal edge portions by a pair of superposed rings 17, 18 of rigid material interconnected, for example, by bolts and nuts. w i
  • the upper sheet 15 is formed with a central aperture 19; (Fig. 4).
  • An annular flange 20 secured to said sheet 15 adjacent to the aperture 19 embraces one end portion of a pipe 21 connected to a source of pressure fluid supply.
  • the pipe 21 passes through a vertical hole 22 (Fig. 1) formed in the upper frame 2.
  • the bellows 1 is sustained in engagement with the under face of the frame 2 by means of a plurality of vertical tension springs 23 each of which is connected at its lower end to the upper ring 17 of the bellows 1, and at its upper end to a bracket 24 projecting from the frame 2.
  • the channels 9 in the frame 4 are defined by the vertical limbs of equi-spaced inverted T-shaped bars 25 the flanges of which are joined together in co-planar relationship to form in effect a continuous plate.
  • the pipe 21 for supply of pressure fluid to the bellows 1 is connected by an automatically operable valve arrangement (not illustrated) to the source of pressure fluid supply, the valve arrangement being devised alternately to admit fluid to the bellows and to exhaust fluid from the bellows. Where the pressure fluid is compressed air, the valve arrangement is devised to connect the pipe 21 alternately to the suction side and to the exhaust side of an air compressor.
  • material 8 from which liquid is to be extracted is placed on the upper flight 5 of the conveyer for conveyance to a position under the bellows 1.
  • the driving means for the conveyer is arranged to cause the conveyer to travel a predetermined distance each time that pressure fluid is exhausted from the bellows 1, by the use of well-known devices in a well-known manner. Devices suitable for this purpose are disclosed in United States Patent 2,272,009, as pointed out above.
  • valve arrangement After a predetermined period of time, the valve arrangement operates to exhaust pressure fluid from the bellows l which is deflated and rises under the influence of the associated springs 23 in the direction away from the frame 4.
  • the timing and other operations here referred to may be effected by the equipment of the type dis- V extraction location I a which the press includes a stationary rigid frame at said location extending above and across the plate and conr closed in United States Patent 2,272,009 in the mannerpointed out above. t The above-described operationis then repeated. 7
  • the fluid pressure in the bellows causes the face of the bellows 1 in contact with the material 8 to betensioned uniformly and to conform readily to the configuration of the material, sothat pressure is applied to all the material in contact with the bellows 1 and efficient extraction of liquid from the material 8 isefiected.
  • a press for extracting liquid-from materials which in bulkpresent foramina including a perforated platelocated at an extraction location, and a conveyor forfconveying material to be extracted through said over said plate, t'he improvement in when deflated permitting the conveyor to move the-ex" amen materialaway from said'location and simultaneously convey new material to be extracted'to apositi'o'n under the bag.
  • a press as claimed in is in the form of a arranged bellows, and w ing the bag above deflated includes a arranged tension spri the bellows and at t said springs suspending undersurface of the rigi from flexible bag is suspended, aid perforated plate and location and being proa plurality of channels,
  • the bag rectangular-shaped horizontallyherein said means for maintainthe material on the conveyor when plurality of laterally-spaced verticallyngs each connected at one end to he other end to the rigid frame, the bellows in contact with the d 'frame and retracting the bellows' away from the extracted material whenthe bellows is deflated.

Description

April 5, 1960 M Filed Oct w DAVIDSON 2 931,290
9 METHOD OF AND MEANS FOR EXTRACTING LIQUID FROM MATERIALS WHICH IN BULK PRESENT FORAMINA 16, 1956 3 Sheets-Sheet 1 lil' lhiiiili'iiiiiiiii-c-fll M. w. DAVIDSON 2,931,290 MEANS FOR EXTRACTING LIQUID FROM MATERIALS WHICH IN BULK PRESENT FORAMINA 3 Sheets-Sheet 2 E A M 7 6 'zmmajzyz April 5, 1960 METHOD OF AND Filed on. 16. 1956 M. w. DAVIDSON 2,931,290
us FOR EXTRACTING LIQUID mom I CH IN BULK PRESENT FORAIIINA m mm m m MM s Shets-Sheet 3 Filed Oct. 16, 1956 METHOD OF AND MEANS FOR EXTRACTING LIQUID FROM MATERIALS WHICH IN BULK PRESENT FORAMINA Maxwell Wingate Davidson, Galashiels, Scotland, as-
signor of one-half to Sanderson & .Murray, Limited, Galashiels, Scotland, at British company Application October 16, 1956, Serial No. 616,179
Claims priority, application Great Britain December 17, 1955 3 Claims. (Cl. 100-211) This invention relates to a method of and means for the extraction of liquid from materials, such as fibrous or granular materials, which in bulk present foramina, and more particularly for the extraction of water from a mass of washed material such as textile fibres.
it has been previously proposed to provide a wringing machine for extracting water from washing, incorporating a container, a bag suspended in the container and adapted to receive a-batch of washing, and means for compressing the bag; by thepressure of water admitted tothe container, so as to press water out of the washing.
Such a machine has the disadvantages that compression of the bag tends to cause folds in the bag which trap parts of the washing, it is possible to wring only one batch of washing at a time, and extraction of water from the bag necessitates the provision of a system of pipes for extraction of water from the bag.
The primary object of the present invention is to provide for extracting liquid from fibrous or granular materials in such wise that pressure is applied uniformly to the material.
A further object is to provide for the extraction of liquid from the material in a continuous manner.
The method according to the invention consists in the steps of bringing the material into contact with the outer face of an inflatable flexible bag, and inflating the bag by fluid pressure in such Wise that the part of the bag in contact with the material is tensioned uniformly by the fluid pressure and is caused to conform readily to the configuration of the material.
The material is preferably conveyed intermittently into contact with the bag.
A press for performing the method according to the invention incorporates a rigid frame, a flexible bag inflatable by pressure fluid and suspended from the frame, and an orificed plate or a screen located below and vertically spaced from the frame, the bag being adapted to press material from which liquid is to be extracted towards the plate or the screen.
The bag is preferably spring-urged in the direction towards the frame.
A practical embodiment of the invention is illustrated in the accompanying drawings in which:
Fig. 1 is a side elevation of the press.
Fig. 2 is an end elevation.
Fig. 3 is a fragmentary side elevation of a flexible bag incorporated in the press.
Fig. 4 is a section of the bag.
Fig. 5 is a plan of the bag.
Referring to the drawings, 1 denotes a flexible bag in the form of a bellows inflatable by fluid pressure and suspended from a rigid frame 2. 3 denotes an orificed plate or screen supported by a frame 4 complementary to and vertically spaced from the frame 2.
An endless perforated conveyer belt, preferably of resilient material, trained around end rollers 6, 7 and having a horizontal upper flight 5 is adapted to travel between nited States PatentO the frames 2, 4, and above the plate or screen 3 and to convey the material 8 from which liquid is to be extracted to a position beyond the bellows 1.
The driving means (including devices of known type and not illustrated) for the conveyer 5 is adapted to effect travel of the conveyer 5 in synchronism with operation of the bellows 1. These operations may be effected by equipment of the type disclosed in United States Patent No. 2,272,009, in which the operating fluid supplied to the piston 0-1 to move the platen 38 down, andlater exhausted therefrom, would be used to inflate and deflate the bellows 1 of the present application.
The upper face of the frame 4 (as illustrated in Fig. 3) is formed with a plurality of channels 9 leading to a trough 10 (Fig. l) which may be piped to a drain (not illustrated).
The lower flight 11 of the conveyer passes under guide rollers 12, 13 revoluble about horizontal axes in a framework 14 supporting the frames 2, 4 and the rollers 6, 7.
The bellows 1 is constituted by two resilient superposed sheets 15, 16 (Figs. 3 and 4) secured together at their marginal edge portions by a pair of superposed rings 17, 18 of rigid material interconnected, for example, by bolts and nuts. w i
The upper sheet 15 is formed with a central aperture 19; (Fig. 4). An annular flange 20 secured to said sheet 15 adjacent to the aperture 19 embraces one end portion of a pipe 21 connected to a source of pressure fluid supply. The pipe 21 passes through a vertical hole 22 (Fig. 1) formed in the upper frame 2.
The bellows 1 is sustained in engagement with the under face of the frame 2 by means of a plurality of vertical tension springs 23 each of which is connected at its lower end to the upper ring 17 of the bellows 1, and at its upper end to a bracket 24 projecting from the frame 2.
The channels 9 in the frame 4 are defined by the vertical limbs of equi-spaced inverted T-shaped bars 25 the flanges of which are joined together in co-planar relationship to form in effect a continuous plate.
The pipe 21 for supply of pressure fluid to the bellows 1 is connected by an automatically operable valve arrangement (not illustrated) to the source of pressure fluid supply, the valve arrangement being devised alternately to admit fluid to the bellows and to exhaust fluid from the bellows. Where the pressure fluid is compressed air, the valve arrangement is devised to connect the pipe 21 alternately to the suction side and to the exhaust side of an air compressor.
In practice, material 8 from which liquid is to be extracted is placed on the upper flight 5 of the conveyer for conveyance to a position under the bellows 1. The driving means for the conveyer is arranged to cause the conveyer to travel a predetermined distance each time that pressure fluid is exhausted from the bellows 1, by the use of well-known devices in a well-known manner. Devices suitable for this purpose are disclosed in United States Patent 2,272,009, as pointed out above.
When the bellows 1 is inflated, travel of the conveyer is interrupted and the bellows 1, during its expansion, presses the material 8 on the conveyer against the plate or screen 3 (as illustrated in Fig. 3), liquid expelled from the material 8 passing through the perforations of the conveyer and through the plate or screen 3 to the channels 9 whence the liquid flows by way of the trough 10 to the drain. 7
After a predetermined period of time, the valve arrangement operates to exhaust pressure fluid from the bellows l which is deflated and rises under the influence of the associated springs 23 in the direction away from the frame 4. The timing and other operations here referred to may be effected by the equipment of the type dis- V extraction location I a which the press includes a stationary rigid frame at said location extending above and across the plate and conr closed in United States Patent 2,272,009 in the mannerpointed out above. t The above-described operationis then repeated. 7
It is tobe noted that, when the bellows 1 is inflated, the fluid pressure in the bellows causes the face of the bellows 1 in contact with the material 8 to betensioned uniformly and to conform readily to the configuration of the material, sothat pressure is applied to all the material in contact with the bellows 1 and efficient extraction of liquid from the material 8 isefiected.
What is claimed is:
1. In a press for extracting liquid-from materials which in bulkpresent foramina, including a perforated platelocated at an extraction location, and a conveyor forfconveying material to be extracted through said over said plate, t'he improvement in when deflated permitting the conveyor to move the-ex" amen materialaway from said'location and simultaneously convey new material to be extracted'to apositi'o'n under the bag. r i
, 2. A press as claimed in claim 1, including a second flex it downwardly and to ten-,
'' the rigid frame from which the said second frame supporting s the conveyor at the extraction vided at its upper surface with above the material on r rigid frame, complementary to and vertically spaced and a trough into which said channels lead.
3. A press as claimed in is in the form of a arranged bellows, and w ing the bag above deflated includes a arranged tension spri the bellows and at t said springs suspending undersurface of the rigi from flexible bag is suspended, aid perforated plate and location and being proa plurality of channels,
claim 1, in which the bag rectangular-shaped horizontallyherein said means for maintainthe material on the conveyor when plurality of laterally-spaced verticallyngs each connected at one end to he other end to the rigid frame, the bellows in contact with the d 'frame and retracting the bellows' away from the extracted material whenthe bellows is deflated.
References Cited in the fileof this patent UNITED STATES PATENTS Smith Dec. 3, I Harvey Oct. 11, Keller et a1. Feb. 3, Weyant Jan. 27,
FOREIGN PATENTS 7 Sweden ;Iai1. Sweden .1-
Germany Mar. 1-, Germany Sept. 6, France Oct. 17, France Sept. 29,
US616179A 1955-12-17 1956-10-16 Method of and means for extracting liquid from materials which in bulk present foramina Expired - Lifetime US2931290A (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3178983A (en) * 1961-07-05 1965-04-20 Werner Machinery Company Reciprocating cookie cutter having cushioning means which automatically adjusts the length of tool stroke
US3908413A (en) * 1973-08-30 1975-09-30 Arnfried Meyer Pressing apparatus for the pressure extracting of liquid
US4137175A (en) * 1978-02-27 1979-01-30 Amsted Industries Incorporated Method and means for filtering liquids
US4180462A (en) * 1978-02-27 1979-12-25 Amsted Industries Incorporated Method and means for filtering liquids
US4586430A (en) * 1983-07-15 1986-05-06 Atlas Pacific Engineering Company Press for extracting juice from comestible solids and semi-solids such as fruit and vegetables
DE3520248A1 (en) * 1985-06-05 1986-12-11 BHS-Bayerische Berg-, Hütten- und Salzwerke AG, 8000 München Filtration apparatus
US20080010767A1 (en) * 2003-11-19 2008-01-17 Grimes David B Cleaning apparatus

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1738326A (en) * 1924-02-23 1929-12-03 Jr Leonard S Smith Laundering apparatus
DE520254C (en) * 1931-03-09 Tech Beratungsstelle G M B H Veneer press
US1881548A (en) * 1931-08-26 1932-10-11 Agasote Millboard Co Apparatus for making pulp board
DE649837C (en) * 1936-04-30 1937-09-06 Dorothea Bob Laundry press with expandable pressure medium container
US2272009A (en) * 1939-01-19 1942-02-03 Lamson Corp Apparatus for compacting folded goods
FR1000791A (en) * 1948-08-26 1952-02-15 Improvements to appliances intended for washing and cleaning of laundry and other similar articles
US2626642A (en) * 1948-08-13 1953-01-27 Romer G Weyant Plywood press
FR1109447A (en) * 1953-06-29 1956-01-27 Hoover Ltd Improvements to compression wringers

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE520254C (en) * 1931-03-09 Tech Beratungsstelle G M B H Veneer press
US1738326A (en) * 1924-02-23 1929-12-03 Jr Leonard S Smith Laundering apparatus
US1881548A (en) * 1931-08-26 1932-10-11 Agasote Millboard Co Apparatus for making pulp board
DE649837C (en) * 1936-04-30 1937-09-06 Dorothea Bob Laundry press with expandable pressure medium container
US2272009A (en) * 1939-01-19 1942-02-03 Lamson Corp Apparatus for compacting folded goods
US2626642A (en) * 1948-08-13 1953-01-27 Romer G Weyant Plywood press
FR1000791A (en) * 1948-08-26 1952-02-15 Improvements to appliances intended for washing and cleaning of laundry and other similar articles
FR1109447A (en) * 1953-06-29 1956-01-27 Hoover Ltd Improvements to compression wringers

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3178983A (en) * 1961-07-05 1965-04-20 Werner Machinery Company Reciprocating cookie cutter having cushioning means which automatically adjusts the length of tool stroke
US3908413A (en) * 1973-08-30 1975-09-30 Arnfried Meyer Pressing apparatus for the pressure extracting of liquid
US4137175A (en) * 1978-02-27 1979-01-30 Amsted Industries Incorporated Method and means for filtering liquids
DE2906831A1 (en) * 1978-02-27 1979-08-30 Amsted Ind Inc METHOD AND DEVICE FOR FILTERING LIQUIDS
US4180462A (en) * 1978-02-27 1979-12-25 Amsted Industries Incorporated Method and means for filtering liquids
US4586430A (en) * 1983-07-15 1986-05-06 Atlas Pacific Engineering Company Press for extracting juice from comestible solids and semi-solids such as fruit and vegetables
DE3520248A1 (en) * 1985-06-05 1986-12-11 BHS-Bayerische Berg-, Hütten- und Salzwerke AG, 8000 München Filtration apparatus
US20080010767A1 (en) * 2003-11-19 2008-01-17 Grimes David B Cleaning apparatus
US8240063B2 (en) * 2003-11-19 2012-08-14 David Brian Grimes Cleaning wringing and drying apparatus

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