GB150015A - Improved process and apparatus for dredging - Google Patents
Improved process and apparatus for dredgingInfo
- Publication number
- GB150015A GB150015A GB996219A GB996219A GB150015A GB 150015 A GB150015 A GB 150015A GB 996219 A GB996219 A GB 996219A GB 996219 A GB996219 A GB 996219A GB 150015 A GB150015 A GB 150015A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- dredger body
- compressed air
- dredger
- receiver
- 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
Links
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
- E02F3/8816—Mobile land installations
- E02F3/8825—Mobile land installations wherein at least a part of the soil-shifting equipment is mounted on a dipper-arm, backhoes or the like
-
- 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
-
- 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
- E02F3/92—Digging elements, e.g. suction heads
- E02F3/9212—Mechanical digging means, e.g. suction wheels, i.e. wheel with a suction inlet attached behind the wheel
-
- 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
- E02F3/92—Digging elements, e.g. suction heads
- E02F3/9243—Passive suction heads with no mechanical cutting means
- E02F3/925—Passive suction heads with no mechanical cutting means with jets
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Air Transport Of Granular Materials (AREA)
Abstract
150,015. Adams, S. H. April 22, 1919. Direct air, gas, and steam pressure apparatus, automatic and non-automatic. - A dredger is operated by moving the dredger body into contact with the material to be moved, filling the dredger body with mud or other deposits by gravity or suction, and discharging the contents by compressed air or steam. In the plant shown in Fig. 1, a pump s compresses air into a receiver a and exhausts air from a receiver b ; these receivers are connected by a pipe c having a threeway valve c to the dredger body d. The dredger body is provided with a valve k operated from a cylinder j by compressed air from the receiver a, with a discharge pipe o, a scoop p provided with a cutting blade, and with a grab q operated by a rod r. Water from a tank t is supplied under pressure to a jet z for loosening the material, and to a pipe y for driving the spoil up the discharge pipe o. In action the material enters the dredger body by gravity or assisted by suction from the receiver b, through the pipe c, the valve k is closed, the valve c is operated to direct compressed air from the receiver a to the dredger body, and the spoil is ejected through the discharge pipe o. In the form shown in Fig. 3 the sides of the dredger body are formed by grabs o which are opened to enclose the material, which is subsequently discharged by compressed air. The valve through which the material enters the dredger body may take the form of the flap valve shown in Fig. 9, in which metal plates b and d connected by metal strips e have pliable material c inserted between them to make an airtight joint between the valve and the face of the opening g. A concave disk f<1> is provided on the valve, against which is directed the stream of compressed air to force the valve on its seating. A guard or screen may be provided to prevent too large pieces entering the dredger body, and the valve controlling the compressed air supply may be automatically actuated by a float device and subjected to the rise of water therein when the dredger body is filling with the material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB996219A GB150015A (en) | 1919-04-22 | 1919-04-22 | Improved process and apparatus for dredging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB996219A GB150015A (en) | 1919-04-22 | 1919-04-22 | Improved process and apparatus for dredging |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB150015A true GB150015A (en) | 1920-08-23 |
Family
ID=9881979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB996219A Expired GB150015A (en) | 1919-04-22 | 1919-04-22 | Improved process and apparatus for dredging |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB150015A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2826836A (en) * | 1949-02-12 | 1958-03-18 | Richard T Hoffman | Hydraulic dredge |
| US4083132A (en) * | 1975-06-30 | 1978-04-11 | Bos Kalis Westminster Group N.V. | Draghead for suction dredger |
| US4207690A (en) * | 1978-05-09 | 1980-06-17 | Niskala Lauri O | Suction device for cleaning bottoms of waterways and for lifting sunken timber |
| EP0075358A1 (en) * | 1981-09-17 | 1983-03-30 | Ihc Holland N.V. | Method for sucking up ground or sludge by means of a suction hopper dredge as well as a suction dredge for applying the method |
-
1919
- 1919-04-22 GB GB996219A patent/GB150015A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2826836A (en) * | 1949-02-12 | 1958-03-18 | Richard T Hoffman | Hydraulic dredge |
| US4083132A (en) * | 1975-06-30 | 1978-04-11 | Bos Kalis Westminster Group N.V. | Draghead for suction dredger |
| US4207690A (en) * | 1978-05-09 | 1980-06-17 | Niskala Lauri O | Suction device for cleaning bottoms of waterways and for lifting sunken timber |
| EP0075358A1 (en) * | 1981-09-17 | 1983-03-30 | Ihc Holland N.V. | Method for sucking up ground or sludge by means of a suction hopper dredge as well as a suction dredge for applying the method |
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