GB1143693A - - Google Patents
Info
- Publication number
- GB1143693A GB1143693A GB1143693DA GB1143693A GB 1143693 A GB1143693 A GB 1143693A GB 1143693D A GB1143693D A GB 1143693DA GB 1143693 A GB1143693 A GB 1143693A
- Authority
- GB
- United Kingdom
- Prior art keywords
- discs
- trees
- recesses
- jib
- cross
- 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.)
- Active
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/60—Derricks
- B66C23/605—Derricks employing ships' masts
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jib Cranes (AREA)
Abstract
1,143,693. Derricks. WARNOWWERFT WARNEMUNDE VEB. 14 Sept., 1967, No. 41897/67. Heading B8B. Load lifting apparatus, e.g. on a ship, comprises cross-trees 4 mounted on pillars 3, a derrick jib 1 movable between the cross-trees, interengageable discs 5 rotatably mounted on the cross-trees and having recesses 7 for receiving therebetween the jib 1, and wheel segments 9 on the discs 5 for engaging a plate 8 on the jib. The recesses are large enough to receive also the load supporting means 2, and the discs 5 engage one another when both recesses 7 lie on one side of a line passing through the axes 6 of the discs. The latter can be locked in various positions by catches 10, 11 thereon and by catch engaging means mounted at positions 12, 14 which are releasable-by cables 13.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BE707494 | 1967-12-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1143693A true GB1143693A (en) |
Family
ID=3851925
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1143693D Active GB1143693A (en) | 1967-12-04 |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE707494A (en) |
| GB (1) | GB1143693A (en) |
| NL (1) | NL6711194A (en) |
-
0
- GB GB1143693D patent/GB1143693A/en active Active
-
1967
- 1967-08-15 NL NL6711194A patent/NL6711194A/xx unknown
- 1967-12-04 BE BE707494D patent/BE707494A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| BE707494A (en) | 1968-04-01 |
| NL6711194A (en) | 1969-02-18 |
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