US3283956A - Device and a method for transferring a charge of material - Google Patents

Device and a method for transferring a charge of material Download PDF

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US3283956A
US3283956A US397889A US39788964A US3283956A US 3283956 A US3283956 A US 3283956A US 397889 A US397889 A US 397889A US 39788964 A US39788964 A US 39788964A US 3283956 A US3283956 A US 3283956A
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recess
zone
tube
ball
charge
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US397889A
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Craswell Kenneth Briggs
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Bir Vac Ltd
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Bir Vac Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J3/00—Processes of utilising sub-atmospheric or super-atmospheric pressure to effect chemical or physical change of matter; Apparatus therefor
    • B01J3/02—Feed or outlet devices therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
    • B65G53/34—Details
    • B65G53/40—Feeding or discharging devices
    • B65G53/46—Gates or sluices, e.g. rotary wheels
    • B65G53/4608—Turnable elements, e.g. rotary wheels with pockets or passages for material
    • B65G53/4625—Turnable elements, e.g. rotary wheels with pockets or passages for material with axis of turning perpendicular to flow
    • B65G53/4633—Turnable elements, e.g. rotary wheels with pockets or passages for material with axis of turning perpendicular to flow the element having pockets, rotated from charging position to discharging position, i.e. discrete flow
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary

Definitions

  • a device for transferring a charge of material from a first zone to a second zone at a pressure lower than that of said first zone comprising a housing member having a hole therethrough for connection at one end to the said first zone and at the other end to the said second zone, a turnable element turnably mounted in the said hole, duct means extending through said member for connection to a suction apparatus, a recess in said element, movable by movement of said element, between a charging position in which said recess faces upwardly to receive said charge, a second position in which said recess is in communication with said duct means for reduction of the pressure in the said recess, and a discharging position in which said recess faces downwardly and discharges.
  • a method for transferring a charge of material from a first zone to a second zone at a pressure lower than that of said first zone comprising providing a turnable element mounted in a hole in a housing memher and having an upwardly facing recess in communication with said first zone, charging said recess with said material, moving said element to put said recess in communication with duct means connected to a suction apparatus, creating suction in said duct means so as to reduce the pressure in said recess, and moving said element such that said recess is in communication with said second zone and faces downwardly to discharge said material.
  • FIGURE 1 shows a diagrammatic longitudinal section through a device for transferring a charge of material
  • FIGURE 2 shows a longitudinal section through part of a modified version of the device.
  • the device includes a cylindrical housing tube 1, the tube having an outwardly directed flange 2 at each end thereof and having its axis AA extending upwardly.
  • the flange at the lower end of the tube 1 is secured by bolts 3 to the wall 4 of a vacuum vessel.
  • An sealing ring 5 is disposed in a recess of the lower flange and cooperates with the wall 4 to minimise leakage of gas through any gap which may exist between the flange and the wall 4.
  • the interior of the tube 1 consists of upper and lower cylindrical bores 6 and 7 leading to a central spherical chamber 8 in which a turnable element in the form of a ball 9 is located.
  • Sealing rings 10 and 11 are provided in the spherical gap between the ball 9 and the wall of the spherical chamber 8 at locations adjacent the upper and lower ends of the spherical chamber.
  • the rings 10 and 11 encircle the axis AA and are disposed at respective opposite sides of the axis B of turning of the ball 9.
  • the ball has been drilled through to form a bore which has then been closed at one end by a disc 12 brazed or welded to the wall of the 3,283,956 Patented Nov. 8, 1966 bore in the ball.
  • the upper bore 6 in the tube 1 communicates with atmosphere and serves as a material inlet of the tube
  • the lower bore 7 in the tube communicates with an aperture in the wall 4 of the vacuum vessel and serves as a material outlet of the tube.
  • a port 14 is provided in the wall of the tube, the port opening into the chamber 8 at a location between the upper and lower sealing rings.
  • This port 14 is connected to a vacuum pump, for example a rotary pump, indicated diagrammatically at 15.
  • a vacuum pump for example a rotary pump, indicated diagrammatically at 15.
  • a shaft 16 which extends to the outside of the tube 1 where it is provided with a turning lever. 17.
  • material in the form of, for example, solid components or fluids such as resins which is to be transferred to the vacuum vessel is placed in the recess 13 through the inlet of the tube 1 while the recess 13 occupies its charging position in which it faces upwardly towards the bore 6.
  • the ball 9 is then rotated in the direction of the arrow C so that the recess 13 opens into the spherical gap at a location between the rings 10 and 11.
  • the vacuum pump 15 connected to the port 14 then reduces the pressure in the recess thereby to minimise the quantity of air transferred into the vacuum vessel with the charge of material.
  • the recess faces downwardly towards the bore 7 and the material is discharged into the vacuum vessel through the tube outlet and the aperture in the wall 4.
  • the ball is subsequenly rotated further so that the recess again occupies its charging position and further material can be placed in the recess.
  • the axis AA is inclined at an angle of, say, 30" to the vertical as measured in a sense opposite to that of the arrow C, the axis B, which intersects perpendicularly the axis A-A, being approximately horizontal. This arrangement ensures less loss of material from the recess 13 during turning than would occur if the axis A-A were horizontal.
  • FIGURE 2 differs from that of FIG- URE 1 in that the disc, now referenced 22, is brazed to the wall of the bore in the ball at a location half-way along the bore, whereby two recesses 23 and 24 disposed at respective opposite sides of the axis B are formed, and serve to receive material alternately.
  • A- device for transferring a charge of material from a first zone to a second zone at a pressure lower than that of said first zone comprising a housing tube having its axis extending upwardly for connection at its upper end to said first zone and at its lower end to said second zone, a ball turnably mounted in the interior of said tube for turning about an axis transverse to the first-mentioned axis, portions of said tube and said element defining a spherical gap therebetween, first and second sealing rings fitted in said gap and encircling the first-mentioned axis and disposed at respective opposite sides of the axis of turning of said ball for preventing fluid fiow from said upper end to said lower end via said gap, portions of said tube defining a duct extending therethrough and connected to said gap at a location intermediate said first and second sealing rings, and portions of said ball defining a recess therein turnable by turning of said ball, between a charging position in which said recess faces upwardly towards said upper end and is in
  • a vacuum pump and a device for transferring a charge of material from a first zone to a second zone at a pressure lower than that of said first zone, said device comprising a housing member, portions of said member defining a hole th-erethroughi for connection at one end to said first zone and at the other end to said second zone, a tunable element turnaoly mounted in said hoie, duct means extending through said member and connected to said vacuum pump, portions of said element defining a blind recess therein movable, by movement of said element, among a.
  • said housing member comprises a tube for connection at one end to said first zone and at its other end to said second zone
  • said turnable element comprises a ball turnably mounted in the interior of said tube for tanning about an axis transverse to the tube axis, there being portions of said tube and said ball defining a spherical gap therebetween
  • said sealing means comprising first and second sealing rings fitted in said gap and encircling the first-mentioned axis and disposed at respective opposite sides of the axis of turning of said ball for preventing fluid flow from said one end to said other end via said gap, said duct being connected to said gap at a location intermediate said first and second sealing rings, and said recess, when in said second position, opening into said gap and being thus in communication With said duct.
  • a method for transferring a charge of material from a first zone to a second zone at a pressure lower than that of said first zone by means of a turnab-le element mounted in a hole in a housing member and having I a blind recess comprising the steps of: moving said element so as to position said blind recess in communication with said first zone, charging said recess with said material, moving said element so as to position said blind recess in communication with a duct means connected :to a suction pump; reducing the pressure in said blind recess; moving said element so as toposition said blind recess in communication with said second zone; and discharging said material iirom said blind recess at said reduced pressure into said second zone.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Jet Pumps And Other Pumps (AREA)
  • Pinball Game Machines (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)

Description

K. B- CRASWELL DEVICE AND A METHOD FOR TRANSFERRING Nov. 8, 1966 A CHARGE OF MATERIAL Filed Sept. 21, 1964 m F 3 1 7 m 0 I v F K /w W lyllwil hdwlm w IIIIII liluww FIG.2
United States Patent G 3,283,956 DEVICE AND A METHOD FOR TRANSFERRIN A CHARGE OF MATERIAL Kenneth Briggs Craswell, Cheltenham, England, assignor to Bir-Vac Limited, Cheltenham, England, a British company Filed Sept. 21, 1964, Ser. No. 397,889 Claims priority, application Great Britain, Sept. 23, 1963, 37,413/63 5 Claims. (Cl. 222-1) This invention relates to a device and a method for transferring a charge of material.
According to one aspect of the present invention, there is provided a device for transferring a charge of material from a first zone to a second zone at a pressure lower than that of said first zone, comprising a housing member having a hole therethrough for connection at one end to the said first zone and at the other end to the said second zone, a turnable element turnably mounted in the said hole, duct means extending through said member for connection to a suction apparatus, a recess in said element, movable by movement of said element, between a charging position in which said recess faces upwardly to receive said charge, a second position in which said recess is in communication with said duct means for reduction of the pressure in the said recess, and a discharging position in which said recess faces downwardly and discharges.
According to another aspect of the present invention there is provided a method for transferring a charge of material from a first zone to a second zone at a pressure lower than that of said first zone, comprising providing a turnable element mounted in a hole in a housing memher and having an upwardly facing recess in communication with said first zone, charging said recess with said material, moving said element to put said recess in communication with duct means connected to a suction apparatus, creating suction in said duct means so as to reduce the pressure in said recess, and moving said element such that said recess is in communication with said second zone and faces downwardly to discharge said material.
In order that the invention may be clearly understood and readily carried into effect, reference will now be made by way of example to the accompanying drawing, where- 1n:
FIGURE 1 shows a diagrammatic longitudinal section through a device for transferring a charge of material, and
FIGURE 2 shows a longitudinal section through part of a modified version of the device.
Referring to FIGURE 1, the device includes a cylindrical housing tube 1, the tube having an outwardly directed flange 2 at each end thereof and having its axis AA extending upwardly. The flange at the lower end of the tube 1 is secured by bolts 3 to the wall 4 of a vacuum vessel. An sealing ring 5 is disposed in a recess of the lower flange and cooperates with the wall 4 to minimise leakage of gas through any gap which may exist between the flange and the wall 4. The interior of the tube 1 consists of upper and lower cylindrical bores 6 and 7 leading to a central spherical chamber 8 in which a turnable element in the form of a ball 9 is located. Sealing rings 10 and 11 are provided in the spherical gap between the ball 9 and the wall of the spherical chamber 8 at locations adjacent the upper and lower ends of the spherical chamber. The rings 10 and 11 encircle the axis AA and are disposed at respective opposite sides of the axis B of turning of the ball 9. The ball has been drilled through to form a bore which has then been closed at one end by a disc 12 brazed or welded to the wall of the 3,283,956 Patented Nov. 8, 1966 bore in the ball. There is thus provided a recess 13 in which material to be transferred to the vacuum vessel is placed. The upper bore 6 in the tube 1 communicates with atmosphere and serves as a material inlet of the tube, and the lower bore 7 in the tube communicates with an aperture in the wall 4 of the vacuum vessel and serves as a material outlet of the tube.
A port 14 is provided in the wall of the tube, the port opening into the chamber 8 at a location between the upper and lower sealing rings. This port 14 is connected to a vacuum pump, for example a rotary pump, indicated diagrammatically at 15. For turning the ball 9 about the axis B, there is attached to the ball a shaft 16 which extends to the outside of the tube 1 where it is provided with a turning lever. 17.
In use of the device, material in the form of, for example, solid components or fluids such as resins, which is to be transferred to the vacuum vessel is placed in the recess 13 through the inlet of the tube 1 while the recess 13 occupies its charging position in which it faces upwardly towards the bore 6. The ball 9 is then rotated in the direction of the arrow C so that the recess 13 opens into the spherical gap at a location between the rings 10 and 11. The vacuum pump 15 connected to the port 14 then reduces the pressure in the recess thereby to minimise the quantity of air transferred into the vacuum vessel with the charge of material. When the ball has rotated through from the charging position, the recess faces downwardly towards the bore 7 and the material is discharged into the vacuum vessel through the tube outlet and the aperture in the wall 4. The ball is subsequenly rotated further so that the recess again occupies its charging position and further material can be placed in the recess.
In practice, the axis AA is inclined at an angle of, say, 30" to the vertical as measured in a sense opposite to that of the arrow C, the axis B, which intersects perpendicularly the axis A-A, being approximately horizontal. This arrangement ensures less loss of material from the recess 13 during turning than would occur if the axis A-A were horizontal.
The version of FIGURE 2 differs from that of FIG- URE 1 in that the disc, now referenced 22, is brazed to the wall of the bore in the ball at a location half-way along the bore, whereby two recesses 23 and 24 disposed at respective opposite sides of the axis B are formed, and serve to receive material alternately.
I claim:
1. A- device for transferring a charge of material from a first zone to a second zone at a pressure lower than that of said first zone, comprising a housing tube having its axis extending upwardly for connection at its upper end to said first zone and at its lower end to said second zone, a ball turnably mounted in the interior of said tube for turning about an axis transverse to the first-mentioned axis, portions of said tube and said element defining a spherical gap therebetween, first and second sealing rings fitted in said gap and encircling the first-mentioned axis and disposed at respective opposite sides of the axis of turning of said ball for preventing fluid fiow from said upper end to said lower end via said gap, portions of said tube defining a duct extending therethrough and connected to said gap at a location intermediate said first and second sealing rings, and portions of said ball defining a recess therein turnable by turning of said ball, between a charging position in which said recess faces upwardly towards said upper end and is in communication with said upper end but practically out of communication with said lower end and said duct, a second position in which said recess opens into said gap and is thus in communication with said duct for reduction of the pressure in said recess but is practically out of communication with said upper end and said lower end, and a discharging position in which said recess faces downwardly towards said lower end and is in communication with said lower end but practically out of communication with said upper end and said duct.
2. In combination, a vacuum pump, and a device for transferring a charge of material from a first zone to a second zone at a pressure lower than that of said first zone, said device comprising a housing member, portions of said member defining a hole th-erethroughi for connection at one end to said first zone and at the other end to said second zone, a tunable element turnaoly mounted in said hoie, duct means extending through said member and connected to said vacuum pump, portions of said element defining a blind recess therein movable, by movement of said element, among a. charging position in which said recess receives said charge, another position in which said recess is in communication with said vacuum pump via said duct means for reduction of the pressure in said recess, and a discharging position in which said recess discharges, and vacuum-tight sealing means between said turnable element and said housing member at both ends of said hole adjacent said connect-ions of said hole to said first and second zones, said sealing means forming an effective seal between said first zone and second zone and between said first and second zones and said duct and vacuum pump connected to said duct when said element is in communication with said d uct.
- 3. A combination as claimed in claim 2 wherein said housing member comprises a tube for connection at one end to said first zone and at its other end to said second zone, and said turnable element comprises a ball turnably mounted in the interior of said tube for tanning about an axis transverse to the tube axis, there being portions of said tube and said ball defining a spherical gap therebetween, and said sealing means comprising first and second sealing rings fitted in said gap and encircling the first-mentioned axis and disposed at respective opposite sides of the axis of turning of said ball for preventing fluid flow from said one end to said other end via said gap, said duct being connected to said gap at a location intermediate said first and second sealing rings, and said recess, when in said second position, opening into said gap and being thus in communication With said duct.
4. A combination as claimed in 2 and further comprising a turning lever connected to said turnable element and located at the outside of said member for turning said element.
5. A method for transferring a charge of material from a first zone to a second zone at a pressure lower than that of said first zone by means of a turnab-le element mounted in a hole in a housing member and having I a blind recess comprising the steps of: moving said element so as to position said blind recess in communication with said first zone, charging said recess with said material, moving said element so as to position said blind recess in communication with a duct means connected :to a suction pump; reducing the pressure in said blind recess; moving said element so as toposition said blind recess in communication with said second zone; and discharging said material iirom said blind recess at said reduced pressure into said second zone.
References Cited by the Examiner RAPHAEL M. LUPO, Primary Examiner.

Claims (1)

  1. 5. A METHOD FOR TRANSFERRING A CHARGE OF MATERIAL FROM A FIRST ZONE TO A SECOND ZONE AT A PRESSURE LOWER THAN THAT OF SAID FIRST ZONE BY MEANS OF A TURNABLE ELEMENT MOUNTED IN A HOLE IN A HOUSING MEMBER AND HAVING A BLIND RECESS COMPRISING THE STEPS OF: MOVING SAID ELEMENT SO AS TO POSITION SAID BLIND RECESS IN COMMUNICATION WITH SAID FIRST ZONE, CHARGING SAID RECESS WITH SAID MATERIAL, MOVING SAID ELEMENT SO AS TO POSITION SAID
US397889A 1963-09-23 1964-09-21 Device and a method for transferring a charge of material Expired - Lifetime US3283956A (en)

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GB37413/63A GB1007204A (en) 1963-09-23 1963-09-23 A device and a method for transferring a charge of material

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4009788A (en) * 1974-05-30 1977-03-01 Shell Internationale Research Maatschappij B.V. Apparatus for transferring fuel between spaces which are at differential pressures
US6338423B1 (en) * 1997-12-29 2002-01-15 Privet Oy Device for feeding material
US6766924B1 (en) 2003-06-25 2004-07-27 Hygiene-Technik Inc. Metering ball-valve with biased housing
FR2969170A1 (en) * 2010-12-21 2012-06-22 Finaxo Environnement Inlet or outlet hopper for use in pyrolysis gas production installation for transit of organic material to or from sealed enclosure for production of pyrolysis gas, has drum with window positionable to charge and discharge material
US9958307B1 (en) 2016-01-11 2018-05-01 Anderson Chemical Company Chemical dosing system

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2817245C3 (en) * 1978-04-20 1981-10-29 P.F.T. Putz- und Fördertechnik GmbH, 8715 Iphofen Cell lock

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US335940A (en) * 1886-02-09 Grain-measuring apparatus and sack-holder
US941024A (en) * 1908-03-13 1909-11-23 Zaremba Company Rotary discharge-valve.
US2037694A (en) * 1935-04-29 1936-04-21 Marjorie Wilkinson Measuring dispenser
US2106492A (en) * 1936-02-26 1938-01-25 Charles F Adams Vacuum and pressure filling apparatus for fluid, plastic, or various other materials
US2533708A (en) * 1946-07-10 1950-12-12 Aasted Kai Christian Sophus Apparatus for casting chocolate, cream and other confectionery paste
US2766911A (en) * 1951-11-26 1956-10-16 Grenco Inc Material handling valve
US2935233A (en) * 1956-06-27 1960-05-03 Clarence W Vogt Apparatus for packing of pulverulent materials
US3058498A (en) * 1958-11-25 1962-10-16 Clarence W Vogt Continuous feeding mechanism for filling apparatus
US3063477A (en) * 1958-02-07 1962-11-13 Clarence W Vogt Method and apparatus for filling containers
US3130879A (en) * 1960-08-26 1964-04-28 Black Clawson Co Rotary feed valve
US3206254A (en) * 1962-04-09 1965-09-14 Buell Engineering Company Inc Material handling apparatus

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US335940A (en) * 1886-02-09 Grain-measuring apparatus and sack-holder
US941024A (en) * 1908-03-13 1909-11-23 Zaremba Company Rotary discharge-valve.
US2037694A (en) * 1935-04-29 1936-04-21 Marjorie Wilkinson Measuring dispenser
US2106492A (en) * 1936-02-26 1938-01-25 Charles F Adams Vacuum and pressure filling apparatus for fluid, plastic, or various other materials
US2533708A (en) * 1946-07-10 1950-12-12 Aasted Kai Christian Sophus Apparatus for casting chocolate, cream and other confectionery paste
US2766911A (en) * 1951-11-26 1956-10-16 Grenco Inc Material handling valve
US2935233A (en) * 1956-06-27 1960-05-03 Clarence W Vogt Apparatus for packing of pulverulent materials
US3063477A (en) * 1958-02-07 1962-11-13 Clarence W Vogt Method and apparatus for filling containers
US3058498A (en) * 1958-11-25 1962-10-16 Clarence W Vogt Continuous feeding mechanism for filling apparatus
US3130879A (en) * 1960-08-26 1964-04-28 Black Clawson Co Rotary feed valve
US3206254A (en) * 1962-04-09 1965-09-14 Buell Engineering Company Inc Material handling apparatus

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4009788A (en) * 1974-05-30 1977-03-01 Shell Internationale Research Maatschappij B.V. Apparatus for transferring fuel between spaces which are at differential pressures
US6338423B1 (en) * 1997-12-29 2002-01-15 Privet Oy Device for feeding material
US6766924B1 (en) 2003-06-25 2004-07-27 Hygiene-Technik Inc. Metering ball-valve with biased housing
FR2969170A1 (en) * 2010-12-21 2012-06-22 Finaxo Environnement Inlet or outlet hopper for use in pyrolysis gas production installation for transit of organic material to or from sealed enclosure for production of pyrolysis gas, has drum with window positionable to charge and discharge material
US9958307B1 (en) 2016-01-11 2018-05-01 Anderson Chemical Company Chemical dosing system

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GB1007204A (en) 1965-10-13
CH415562A (en) 1966-06-30

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