GB694954A - Control device for the dredge-tube suspension cables of a suction dredger - Google Patents
Control device for the dredge-tube suspension cables of a suction dredgerInfo
- Publication number
- GB694954A GB694954A GB2887/50A GB288750A GB694954A GB 694954 A GB694954 A GB 694954A GB 2887/50 A GB2887/50 A GB 2887/50A GB 288750 A GB288750 A GB 288750A GB 694954 A GB694954 A GB 694954A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tube
- sheave
- dredge
- cable
- counterweight
- 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
- E02F3/90—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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/26—Rope, cable, or chain winding mechanisms; Capstans having several drums or barrels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D2700/00—Capstans, winches or hoists
- B66D2700/01—Winches, capstans or pivots
- B66D2700/0125—Motor operated winches
- B66D2700/0166—Winches with multiple drums or with drums with multiple parts of different diameter
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Tension Adjustment In Filamentary Materials (AREA)
- Storing, Repeated Paying-Out, And Re-Storing Of Elongated Articles (AREA)
Abstract
694,954. Dredgers. ATELIERS ET CHANTIERS DE BRETAGNE ANCIENS ETABLISSEMENTS DE LA BROSSE ET FOUCHE. Feb. 3, 1950. [Dec. 7, 1949] No. 2887/50. Addition to 662,345. Class 113 (ii). In a control device for the suspension cables of a suction dredger dredge-tube, as claimed in the parent Specification, the winding drum for the cable hoisting the knee of the dredge tube is driven in unison with the other cablewinding drums (the clutch of the parent Specification being eliminated), said firstmentioned drum being equal in diameter to the smaller sections of said other drums, and utilising a weighted pulley to take up slack which tends to form in the knee-hoisting cable. The latter cable passes through a tackle-block carried by the supporting arm 20, over a sheave 27 of the movable part 17 and a sheave 28 of the fixed frame 16 of the davit, under a movable sheave 76, over a fixed sheave 77, and a sheave 34 to the winch. The movable sheave 76 carries a counterweight 78 slidable between guides 79 and having an extension 80 to limit upward movement by abutment against a fixed part 81. To sink the dredge-tube from the fully raised position shown in dotted lines in Fig. 4, the counterweight 78 being in its uppermost position, the winch is walked back so that the movable parts of the davits swing to ease the tube overboard and thereafter the tube is lowered horizontally since all the winding drum sections are equal in diameter. When the knee arrives opposite the intake aperture in the ship's side, its downward movement is arrested while the cables relating to the other parts of the tube ride on to the larger sections of their winding drums so that the tube is tilted downwards. The kneehoisting cable continues to be paid out by its drum and the slack is progressively taken up by the simultaneous lowering of the counter weight 78. Conversely, on hoisting the dredgetube on deck, while the tube is returned from its tilted to its horizontal position the counterweight 78 is lifted to its uppermost position, and the tube is then lifted horizontally on to the deck.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR980469T | 1948-12-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB694954A true GB694954A (en) | 1953-07-29 |
Family
ID=9525261
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3193/49A Expired GB662345A (en) | 1948-12-16 | 1949-02-04 | Control device for the dredge-tube suspension cables of a suction dredger |
GB2887/50A Expired GB694954A (en) | 1948-12-16 | 1950-02-03 | Control device for the dredge-tube suspension cables of a suction dredger |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3193/49A Expired GB662345A (en) | 1948-12-16 | 1949-02-04 | Control device for the dredge-tube suspension cables of a suction dredger |
Country Status (3)
Country | Link |
---|---|
FR (2) | FR980469A (en) |
GB (2) | GB662345A (en) |
NL (2) | NL74874C (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4411079A (en) * | 1980-11-13 | 1983-10-25 | Ihc Holland N.V. | Suction drag system |
US4864066A (en) * | 1987-05-23 | 1989-09-05 | Basf Aktiengesellschaft | Preparation of alkanediols from alkynols |
-
0
- NL NL77723D patent/NL77723C/xx active
- NL NL74874D patent/NL74874C/xx active
-
1948
- 1948-12-16 FR FR980469D patent/FR980469A/en not_active Expired
-
1949
- 1949-02-04 GB GB3193/49A patent/GB662345A/en not_active Expired
- 1949-12-07 FR FR60208D patent/FR60208E/en not_active Expired
-
1950
- 1950-02-03 GB GB2887/50A patent/GB694954A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4411079A (en) * | 1980-11-13 | 1983-10-25 | Ihc Holland N.V. | Suction drag system |
US4864066A (en) * | 1987-05-23 | 1989-09-05 | Basf Aktiengesellschaft | Preparation of alkanediols from alkynols |
Also Published As
Publication number | Publication date |
---|---|
FR980469A (en) | 1951-05-15 |
NL74874C (en) | |
NL77723C (en) | |
GB662345A (en) | 1951-12-05 |
FR60208E (en) | 1954-10-12 |
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