EP0261706A1 - Equipment for laying a sunk mattress down on a basin bottom - Google Patents

Equipment for laying a sunk mattress down on a basin bottom Download PDF

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Publication number
EP0261706A1
EP0261706A1 EP87201588A EP87201588A EP0261706A1 EP 0261706 A1 EP0261706 A1 EP 0261706A1 EP 87201588 A EP87201588 A EP 87201588A EP 87201588 A EP87201588 A EP 87201588A EP 0261706 A1 EP0261706 A1 EP 0261706A1
Authority
EP
European Patent Office
Prior art keywords
belts
sunk
equipment
mattress
frame
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.)
Granted
Application number
EP87201588A
Other languages
German (de)
French (fr)
Other versions
EP0261706B1 (en
Inventor
Peter Brouns
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.)
Bitumar NV
Original Assignee
Bitumar 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
Priority claimed from BE0/217114A external-priority patent/BE905366A/en
Application filed by Bitumar NV filed Critical Bitumar NV
Publication of EP0261706A1 publication Critical patent/EP0261706A1/en
Application granted granted Critical
Publication of EP0261706B1 publication Critical patent/EP0261706B1/en
Expired legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
    • E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
    • E02B3/12—Revetment of banks, dams, watercourses, or the like, e.g. the sea-floor
    • E02B3/121—Devices for applying linings on banks or the water bottom

Definitions

  • This invention relates to an equipment for laying a sunk mattress over a basin bottom.
  • Bottom-protecting means are always sunk mattresses which have been finished to size beforehand and which have to be laid over the bottom or possibly the bank of said basin. Such bottom-protecting means will always be called hereinafter "sunk mattresses”.
  • such prefabricated sunk mattresses have to be laid down over large surface areas in a well-determined location and in a pre-defined sequence.
  • the invention has now for object to obviate these drawbacks and to provide an equipment wherewith said sunk mattresses after being deposited in the suitable location, can be released from above the water level, and the loss of suspension cables is avoided.
  • the equipment according to the invention is comprised of a frame to be lowered in the basin, with means provided on two lengthwise or crosswise edges thereof for securing the one end of belts said sunk mattress can be supported with and the other end of which can be removably locked on the other lengthwise or crosswise frame edge, while means are provided for remotely unlocking said belts, in such a way that when said belts are unlocked at one end, said frame may be raised and the belts which are still secured with the other end thereof to the frame, can be pulled away from underneath the sunk mattress laid down on the bottom.
  • the equipment as shown in these figures, is formed by a frame 1 which is essentially comprised of at least one main beam 2 with at least one securing means 3 for a hoisting cable 4.
  • a number small cross-beams 5 are fastened cross-wise to the main beam 2, which extends along the lengthwise direction of said frame.
  • pulling means 6 are stretched between the main beam 2 and the end of every cross-beam 5, while all said cross-beams 5 are joined together by girders 7 which lie at the end of the small cross-beams 5.
  • reinforcement cross-beams may be provided with the same function as the girders 7.
  • Such a frame or a similar one is shown likewise with reference numeral 1 in figures 1 to 3.
  • the sunk mattress 8 is supported by a series belts 9. Actually, one belt 9 is provided for each small cross-beam 5. Due to the structure of that material the sunk mattress is made of, _ said sunk mattress 8 takes on a curved shape (figure 1).
  • the sunk mattress takes on a condition which corresponds to the even or substantially even bottom 10.
  • all the belts 9 can be released on the one side of the frame, in such a way that by pulling the frame upwards, all said belts 9 are pulled away simultaneously from underneath the sunk mattress 8. This is made clear in figures 2 and 3. -When the belts 9 have been pulled away from underneath the sunk mattress, said sunk mattress lies accurately in the position intended therefor, and by means of that mechanism the description of which follows, the belts 9 may be released on the one side of the frame without the intervention of divers, for example.
  • the mechanism which is the object of figure 5, is comprised for every belt 9, or as the case may be for a group belts 9, of a ratchet wheel 11 which is secured to a cylinder-shaped element 12 wherein a lengthwise slit (not shown in the figures) is provided. A belt end is slipped through said slit.
  • the cylinder-shaped element is rotated for example twice about the center line thereof, in the direction of arrow 13, in such a way that the belt 9 may be considered as locked.
  • a pawl 14 with a tooth 15 is retained pressed by a spring 16 for example, against the ratchet wheel 11.
  • the hinge point for pawl 14 lies in 17.
  • the pawl 14 may be raised against the action of spring 16 because said pawl 14 is joined through a connecting element 18 to a small lever 19, which is secured on a tube-like element 20 whereon a main lever 21 is also secured. To the end of said main lever 21, there is secured a connecting element 22 which can be pulled from above the water level.
  • a plurality of small levers 19 may be provided on one and the same tube-like element 20 and rotating said tube-like element may be obtained by making use of a single main lever 21.
  • the cylinder-shaped element 12 with ratchet wheel 11 and the pawl 14 cooperating therewith, as well as the tube-like element 20 are mounted on plates 23 which are made fast to the girders 7.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Revetment (AREA)

Abstract

The equipment is comprised of a frame (1) to be lowered in the basin, with means provided on two lengthwise or crosswise edges thereof for securing the one end of belts (9) said sunk mattress (8) can be supported with and the other end of which can be removably locked on the other lengthwise or crosswise frame edge, while means are provided for remotely unlocking said belts (9), in such a way that when said belts (9) are unlocked at one end, said frame (1) may be raised and the belts (9) which are still secured with the other end thereof to the frame (1), can be pulled away from underneath the sunk mattress (8).

Description

  • This invention relates to an equipment for laying a sunk mattress over a basin bottom.
  • With the wording "basin", there should be understood canals, rivers, river mouths, lakes, docks, running waters or still waters.
  • Bottom-protecting means are always sunk mattresses which have been finished to size beforehand and which have to be laid over the bottom or possibly the bank of said basin. Such bottom-protecting means will always be called hereinafter "sunk mattresses".
  • In some cases, such prefabricated sunk mattresses have to be laid down over large surface areas in a well-determined location and in a pre-defined sequence.
  • Up to now, such sunk mattresses could only be provided by dumping stones from above the water, which meant having to spread the dumped materials. Flow stream influences then further prevented an accurate locating of the dumped materials. This could result in a large excess dumped materials or an unknown thickness of the dumped layer.
  • When use is made of prefabricated mineral asphalt mats, concrete slabs or sunk mattresses from the most varied materials, those cables which are required when laying the sunk mattresses down, are released by divers or in some other way (clamping device), whereby said cables are left in place and have to be considered as lost.
  • The invention has now for object to obviate these drawbacks and to provide an equipment wherewith said sunk mattresses after being deposited in the suitable location, can be released from above the water level, and the loss of suspension cables is avoided.
  • To obtain such a result according to the invention, the equipment according to the invention is comprised of a frame to be lowered in the basin, with means provided on two lengthwise or crosswise edges thereof for securing the one end of belts said sunk mattress can be supported with and the other end of which can be removably locked on the other lengthwise or crosswise frame edge, while means are provided for remotely unlocking said belts, in such a way that when said belts are unlocked at one end, said frame may be raised and the belts which are still secured with the other end thereof to the frame, can be pulled away from underneath the sunk mattress laid down on the bottom.
  • Other details and advantages of the invention will stand out from the following description of an equipment for laying a sunk mattress down on a basin bottom, according to the invention. This description is only given by way of non limitative example, and with reference to the accompanying drawings, in which:
    • Figure 1 is a diagrammatic showing of the equipment according to the invention on that moment where the sunk mattress reaches the bottom.
    • Figure 2 is a diagrammatic showing of the equipment according to the invention on that moment where the sunk mattress lies stretched over the bottom and the equipment begins the upwards movement thereof.
    • Figure 3 is a diagrammatic showing of the equipment according to the invention on that moment where the belts have been completely pulled away from underneath the sunk mattress.
    • Figure 4 is a perspective showing of the equipment according to the invention.
    • Figure 5 shows on a larger scale, that mechanism wherewith the belts which serve to support the sunk mattresses, can be locked or unlocked.
  • The equipment as shown in these figures, is formed by a frame 1 which is essentially comprised of at least one main beam 2 with at least one securing means 3 for a hoisting cable 4.
  • A number small cross-beams 5 are fastened cross-wise to the main beam 2, which extends along the lengthwise direction of said frame.
  • In figure 4, to avoid overloading needlessy the drawing, part only of said cross-beams have been shown. The number cross-beams 5 has however absolutely no meaning for a correct understanding of the invention.
  • For stiffening the unit, pulling means 6 are stretched between the main beam 2 and the end of every cross-beam 5, while all said cross-beams 5 are joined together by girders 7 which lie at the end of the small cross-beams 5. Finally, along the head ends of the frame, reinforcement cross-beams may be provided with the same function as the girders 7.
  • Such a frame or a similar one is shown likewise with reference numeral 1 in figures 1 to 3. The sunk mattress 8 is supported by a series belts 9. Actually, one belt 9 is provided for each small cross-beam 5. Due to the structure of that material the sunk mattress is made of, _ said sunk mattress 8 takes on a curved shape (figure 1).
  • With the laying of the sunk mattress 8 down on the bottom 10, the sunk mattress takes on a condition which corresponds to the even or substantially even bottom 10.
  • By resorting to a mechanism which will be further described in detail with reference to figure 5, all the belts 9 can be released on the one side of the frame, in such a way that by pulling the frame upwards, all said belts 9 are pulled away simultaneously from underneath the sunk mattress 8. This is made clear in figures 2 and 3. -When the belts 9 have been pulled away from underneath the sunk mattress, said sunk mattress lies accurately in the position intended therefor, and by means of that mechanism the description of which follows, the belts 9 may be released on the one side of the frame without the intervention of divers, for example.
  • The mechanism which is the object of figure 5, is comprised for every belt 9, or as the case may be for a group belts 9, of a ratchet wheel 11 which is secured to a cylinder-shaped element 12 wherein a lengthwise slit (not shown in the figures) is provided. A belt end is slipped through said slit. The cylinder-shaped element is rotated for example twice about the center line thereof, in the direction of arrow 13, in such a way that the belt 9 may be considered as locked. A pawl 14 with a tooth 15 is retained pressed by a spring 16 for example, against the ratchet wheel 11. The hinge point for pawl 14 lies in 17.
  • There is provided for every belt 9 for example, such a mechanism. The pawl 14 may be raised against the action of spring 16 because said pawl 14 is joined through a connecting element 18 to a small lever 19, which is secured on a tube-like element 20 whereon a main lever 21 is also secured. To the end of said main lever 21, there is secured a connecting element 22 which can be pulled from above the water level.
  • When the main lever 21 is being pulled, the pawl 14 comes with the tooth 15 thereof out of the ratchet wheel 11 and the cylinder-shaped element 12 rotates in the direction opposite arrow 13. This means that the belt 9 will be released relative to said cylinder-shaped element 12.
  • A plurality of small levers 19 may be provided on one and the same tube-like element 20 and rotating said tube-like element may be obtained by making use of a single main lever 21.
  • The cylinder-shaped element 12 with ratchet wheel 11 and the pawl 14 cooperating therewith, as well as the tube-like element 20 are mounted on plates 23 which are made fast to the girders 7.
  • It appears from the above description of an equipment for laying sunk mattresses down over a basin bottom, according to the invention, that such sunk mattresses may be laid down under good conditions in an assigned location, and mostly that those belts which support said sunk mattresses, may be released all together or in groups, relative to the equipment frame and thus may be pulled away from underneath the laid-down sunk mattress by acting on the locking mechanism from above the water level.
  • The invention is in no way limited to the above-described embodiment and many changes may be brought thereto without departing from the scope of the invention.

Claims (6)

1. Equipment for laying a sunk mattress down over a basin bottom, characterized in that it is comprised of a frame (1) to be lowered in the basin, with means provided on two lengthwise or crosswise edges thereof for securing the one end of belts (9) said sunk mattress (8) can be supported with and the other end of which belts can be releasably locked on the other lengthwise or crosswise frame edge, while means are provided for remotely unlocking said belts (9), in such a way that when said belts (9) are unlocked at one end, said frame (1) may be raised and the belts (9) which are still secured with the other end thereof to the frame (1), can be pulled away from underneath the sunk mattress (8) laid down on the bottom (10).
2. Equipment as defined in claim 1, characterized in that it comprises: a) means for remotely unlocking the one end of said belts (9), formed by a cylinder-shaped element (12) whereabout the one end of said belt (9) is wound and thereby retained clamped; b) means for locking said cylinder-shaped element in one position, wherein said belt (9) remains clamped.
3. Equipment as defined in claim 2, characterized in that said means for locking said cylinder-shaped element (12) in one position wherein said belt (9) remains clamped, are formed by a ratchet wheel (11) secured on said cylinder-shaped element (12), a slit provided in said cylinder-shaped element wherein a belt (9) may be slipped with the end thereof, and a pawl (14) which cooperates with said ratchet wheel (11).
4. Equipment as defined in claim 3, characterized in that said pawl (14) is connected to a small lever (19) which can be remotely operated to pull said pawl (14) away from said ratchet wheel (11).
5. Equipment as defined in claim 4, characterized in that the small lever (19) is secured on a tube-like element (20), the rotation of which is caused by a main lever (21) which is secured on that same tube-like element (20), and which can be operated from above the water level.
6. Equiment as defined in either one of claims 4 and 5, characterized in that said pawl (14) is connected to said small lever (19) through a connecting element (18).
EP19870201588 1986-09-02 1987-08-21 Equipment for laying a sunk mattress down on a basin bottom Expired EP0261706B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE217114 1986-09-02
BE0/217114A BE905366A (en) 1986-09-02 1986-09-02 Equipment sinking object onto bed of fast flowing water - has frame supporting belts detached at one end and pulled free

Publications (2)

Publication Number Publication Date
EP0261706A1 true EP0261706A1 (en) 1988-03-30
EP0261706B1 EP0261706B1 (en) 1990-11-14

Family

ID=3844074

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19870201588 Expired EP0261706B1 (en) 1986-09-02 1987-08-21 Equipment for laying a sunk mattress down on a basin bottom

Country Status (3)

Country Link
EP (1) EP0261706B1 (en)
DE (1) DE3766208D1 (en)
ES (1) ES2019091B3 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1004666A3 (en) * 1991-03-25 1993-01-05 Bitumar Device for lowering an erosion control mattress to the bottom of a waterbasin

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1756057A (en) * 1928-03-07 1930-04-29 Charles E Doty Timber-handling device
US1862312A (en) * 1932-03-09 1932-06-07 Albert L Kositzky Automatically releasing hoisting device
US2669479A (en) * 1950-05-02 1954-02-16 Frank I Louckes Mechanism for manipulating flexible revetment mats
GB870530A (en) * 1958-03-15 1961-06-14 S I S M A Societa Ind Siderurg Equipment for facilitating unloading of goods from vehicles
US3141353A (en) * 1962-06-08 1964-07-21 Preferred Growth Capital Inc Load binding winch control mechanism
US4486120A (en) * 1980-11-25 1984-12-04 Landry Jr Kossuth J Spreader bar for soil erosion prevention mats

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1756057A (en) * 1928-03-07 1930-04-29 Charles E Doty Timber-handling device
US1862312A (en) * 1932-03-09 1932-06-07 Albert L Kositzky Automatically releasing hoisting device
US2669479A (en) * 1950-05-02 1954-02-16 Frank I Louckes Mechanism for manipulating flexible revetment mats
GB870530A (en) * 1958-03-15 1961-06-14 S I S M A Societa Ind Siderurg Equipment for facilitating unloading of goods from vehicles
US3141353A (en) * 1962-06-08 1964-07-21 Preferred Growth Capital Inc Load binding winch control mechanism
US4486120A (en) * 1980-11-25 1984-12-04 Landry Jr Kossuth J Spreader bar for soil erosion prevention mats

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1004666A3 (en) * 1991-03-25 1993-01-05 Bitumar Device for lowering an erosion control mattress to the bottom of a waterbasin

Also Published As

Publication number Publication date
EP0261706B1 (en) 1990-11-14
ES2019091B3 (en) 1991-06-01
DE3766208D1 (en) 1990-12-20

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