US3828451A - Ducting system for suction dredgers having pivotally connected tube lengths - Google Patents

Ducting system for suction dredgers having pivotally connected tube lengths Download PDF

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Publication number
US3828451A
US3828451A US00327408A US32740873A US3828451A US 3828451 A US3828451 A US 3828451A US 00327408 A US00327408 A US 00327408A US 32740873 A US32740873 A US 32740873A US 3828451 A US3828451 A US 3828451A
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US
United States
Prior art keywords
earth
dredger
coupling members
duct system
hinge parts
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US00327408A
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English (en)
Inventor
Koning J De
Der Veen R Van
T Wolters
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ballast Nedam NV
Original Assignee
Ballast Nedam Groep NV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ballast Nedam Groep NV filed Critical Ballast Nedam Groep NV
Application granted granted Critical
Publication of US3828451A publication Critical patent/US3828451A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
    • E02F3/90—Component parts, e.g. arrangement or adaptation of pumps
    • E02F3/905—Manipulating or supporting suction pipes or ladders; Mechanical supports or floaters therefor; pipe joints for suction pipes
    • 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
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L27/00—Adjustable joints; Joints allowing movement
    • F16L27/02—Universal joints, i.e. with mechanical connection allowing angular movement or adjustment of the axes of the parts in any direction
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/8807—Articulated or swinging flow conduit

Definitions

  • An earth dredger comprising a duct system for sucking up earth from a soil below water, the duct system comprising a plurality of rigid lengths of tube pivotally connected with each other by means of universal joints formed by hinge parts and coupling members and communicating with each other through flexible, elastic bellows is improved in that the coupling members of the universal joints are arranged between two adjacent bellows, so that the universal joint has smaller dimensions and the earth'dredger is less expensive.
  • FIG. 1 A first figure.
  • the invention relates to an earth dredger comprising a duct system for sucking up earth form a soil below water, said duct system comprising a plurality of rigid lengths of tubes pivotally interconnected by universal joints formed by hinge parts and coupling members and communicating with each other through flexible, elastic bellows, two of said bellows being arranged side by side at the area of at least one universal joint.
  • Such an earth dredger is known.
  • the coupling members comprise. a cardanic ring surrounding the elastic bellows, whilst the hinge parts are arranged outside the bellows.
  • This hinge is bulky and hence heavy and expensive.
  • the invention has for its object to reduce the bulk and hence the weight and cost price of the hinge.
  • the earth dredger embodying the invention is characterized in that the hinge parts and the coupling members of the universal joint are arranged between the two adjacent bellows. I j
  • FIGS. 1 and 2 are a side elevation and a front elevation respectively of an earth dredger comprising a duct system embodying the invention
  • FIG. 3 on an enlarged scale a detail III of FIG. 2, partly broken away and FIGS. 4, 5 and 6 an elevation of a detail corresponding to FIG. 3.
  • the earth dredger l of FIGS. 1 and'2 comprises a vessel 5 and a duct system 2 suspended thereto for sucking up earth from a soil 4 below the water 3.
  • This duct system 2 comprises three rigid lengths of tube 6, pivotally suspended to each other by hinges 12 with the pivotal axis 7 and to the vessel 5 by means of a hinge 13 with the pivotal axis 18.
  • the duct system has a nozzle 11 to be insertedinto the soil 4, through which a suspension of earth and water is sucked into the duct system 2.
  • the tubings 6 communicate with each other at the areas of the hinges 12 through branch tubings l4 and bellows 15 arranged between the former.
  • Each hinge 12 comprises fork-shaped hinge parts 16 rigidly secured to the tubings 6 and acting by means of journal bushes 17 in pivotal manner on pins 18 and 20 of a cross piece forming the coupling members 19 crossing each other at right angles.
  • the pins 18 are coaxial to the pivotal axis 7.
  • the bellows 15 are elastic and highly flexible and extensible and compressible in the plane of the drawing of FIG. 1, but to a considerably lesser extent, in the plane of the drawing of FIG. 2. This is usually the case with various, commercially available bellows 15 of fibreor mat-armoured rubber of synthetic 5 so as to be pivotable about the axis 8.
  • the topmost tubing 6 communicates through bellows 28 with a pump 9 accommodated in the vessel 5, said pump pumping on the suspension through a pressure duct 39.
  • the frame 27 and the rigid tubings 6 are furthermore suspended to the vessel 5 by means of cables 29 of hoisting devices 30 arranged on the vessel 5.
  • the universal joint of FIG. 4 which is a variant of the detail III of FIG. 2, is formed by a ball-and-socket joint.
  • One hinge part 16a has a ball 20 fitting in a cavity 21 of the other hinge part 16b.
  • This ball-and-socket joint parts 16c and 16d respectively.
  • the universal joint of FIG. 5 requires less space between the bellows 15 than the universal joint of FIG. 3 and can be constructed more readily than the ball-and-socket joint 12 of FIG. 4.
  • I corresponds with the universal joint 12 of FIG. 5 with the exception that the hinge part 16f is arranged by means of sliding bearings 26 so as to be rotatable about a longitudinal axis 25 of the duct system 2 with respect to the tubings 6. Owing to these sliding bearings 26 the duct system allows for a slight amount of torsion.
  • An earth dredger comprising a duct system for sucking up earth from a soil below water, said duct system comprising a plurality of rigid lengths of tube pivotally connected with each other by means of universal joints formed by hinge'parts and coupling members, at least a pair of said lengths of tube having branched end portions facing each other with the corresponding legs of such branched end portions communicating with each other through flexible, elastic bellows and being arranged side by side at the area of that universal joint pivotally connecting such pair, the hinge parts and the coupling members of the universal joint pivotally connecting said pair of lengths of tube being arranged between the two adjacent bellows communicating said branched end portions.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Joints Allowing Movement (AREA)
US00327408A 1972-01-28 1973-01-29 Ducting system for suction dredgers having pivotally connected tube lengths Expired - Lifetime US3828451A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7201145.A NL160627C (nl) 1972-01-28 1972-01-28 Grondzuiger met een leidingstelsel voor het opzuigen van grond.

Publications (1)

Publication Number Publication Date
US3828451A true US3828451A (en) 1974-08-13

Family

ID=19815243

Family Applications (1)

Application Number Title Priority Date Filing Date
US00327408A Expired - Lifetime US3828451A (en) 1972-01-28 1973-01-29 Ducting system for suction dredgers having pivotally connected tube lengths

Country Status (7)

Country Link
US (1) US3828451A (enExample)
JP (1) JPS5310352B2 (enExample)
BE (1) BE794582A (enExample)
DE (1) DE2303933C3 (enExample)
FR (1) FR2169382B1 (enExample)
GB (1) GB1405234A (enExample)
NL (1) NL160627C (enExample)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3990379A (en) * 1973-08-22 1976-11-09 N.V. Industrieele Handelscombinatie Holland Dredging apparatus
DE2557713A1 (de) * 1975-12-20 1977-06-30 Pforzheim Metallschlauch Bewegliches rohrleitungselement
US4083135A (en) * 1975-04-15 1978-04-11 Ballast-Nedam Groep, N.V. Flexible connecting arrangement for suction dredgers
US4123860A (en) * 1972-01-28 1978-11-07 Ballast-Nedam Groep N.V. Flexible connections for suction dredger pipes
FR2398957A1 (fr) * 1977-07-26 1979-02-23 Single Buoy Moorings Conduite intermediaire entre deux conduites reliees a pivot
US4295286A (en) * 1980-04-08 1981-10-20 Ihc Holland N.V. Support frame for motor, pump and suction tube of a suction dredger
US4352250A (en) * 1979-12-12 1982-10-05 Koninklijke Bos Kalis Westminster Group N.V. Suction dredger installation
EP0251389A1 (en) * 1986-06-19 1988-01-07 Hollandsche Beton Groep N.V. Apparatus for underwater covering of a line, such as a pipeline and/or other objects, with loose material

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2395361A1 (fr) * 1977-06-23 1979-01-19 Ferodo Sa Drague
PL2639359T3 (pl) * 2012-03-16 2017-06-30 Jan De Nul N.V. Urządzenie pogłębiające i sposób pogłębiania lub wydobywania przy użyciu takiego urządzenia

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1382245A (en) * 1919-06-03 1921-06-21 Vapor Car Heating Co Inc Coupling for railway train-pipes
US2240392A (en) * 1938-12-23 1941-04-29 B S Allen Nozzle
US3434491A (en) * 1966-08-04 1969-03-25 Fmc Corp Fluid transfer apparatus
US3681862A (en) * 1968-11-20 1972-08-08 Ingbureau Voor Systems En Octr Suction dredger having plural pumps and plural articulated pipe sections

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1382245A (en) * 1919-06-03 1921-06-21 Vapor Car Heating Co Inc Coupling for railway train-pipes
US2240392A (en) * 1938-12-23 1941-04-29 B S Allen Nozzle
US3434491A (en) * 1966-08-04 1969-03-25 Fmc Corp Fluid transfer apparatus
US3681862A (en) * 1968-11-20 1972-08-08 Ingbureau Voor Systems En Octr Suction dredger having plural pumps and plural articulated pipe sections

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4123860A (en) * 1972-01-28 1978-11-07 Ballast-Nedam Groep N.V. Flexible connections for suction dredger pipes
US3990379A (en) * 1973-08-22 1976-11-09 N.V. Industrieele Handelscombinatie Holland Dredging apparatus
US4083135A (en) * 1975-04-15 1978-04-11 Ballast-Nedam Groep, N.V. Flexible connecting arrangement for suction dredgers
DE2557713A1 (de) * 1975-12-20 1977-06-30 Pforzheim Metallschlauch Bewegliches rohrleitungselement
FR2335781A1 (fr) * 1975-12-20 1977-07-15 Pforzheim Metallschlauch Raccord de tuyauterie mobile
US4127145A (en) * 1975-12-20 1978-11-28 Metallschlauch-Fabrik Pforzheim (Vorm. Hch. Witzenmann) Gesellschaft Mit Beschrankter Haftung Movable pipeline element
FR2398957A1 (fr) * 1977-07-26 1979-02-23 Single Buoy Moorings Conduite intermediaire entre deux conduites reliees a pivot
US4352250A (en) * 1979-12-12 1982-10-05 Koninklijke Bos Kalis Westminster Group N.V. Suction dredger installation
US4295286A (en) * 1980-04-08 1981-10-20 Ihc Holland N.V. Support frame for motor, pump and suction tube of a suction dredger
EP0251389A1 (en) * 1986-06-19 1988-01-07 Hollandsche Beton Groep N.V. Apparatus for underwater covering of a line, such as a pipeline and/or other objects, with loose material

Also Published As

Publication number Publication date
DE2303933B2 (de) 1977-10-27
JPS5310352B2 (enExample) 1978-04-13
FR2169382A1 (enExample) 1973-09-07
JPS4882586A (enExample) 1973-11-05
BE794582A (nl) 1973-07-26
DE2303933C3 (de) 1978-06-15
FR2169382B1 (enExample) 1976-05-14
NL160627C (nl) 1979-11-15
GB1405234A (en) 1975-09-10
NL7201145A (enExample) 1973-07-31
NL160627B (nl) 1979-06-15
DE2303933A1 (de) 1973-08-09

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