GB955548A - Improvements in or relating to luffing cranes - Google Patents
Improvements in or relating to luffing cranesInfo
- Publication number
- GB955548A GB955548A GB2367860A GB2367860A GB955548A GB 955548 A GB955548 A GB 955548A GB 2367860 A GB2367860 A GB 2367860A GB 2367860 A GB2367860 A GB 2367860A GB 955548 A GB955548 A GB 955548A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rope
- jib
- lifting
- luffing
- jibs
- 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
-
- 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
- B66C23/18—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 specially adapted for use in particular purposes
- B66C23/36—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 specially adapted for use in particular purposes mounted on road or rail vehicles; Manually-movable jib-cranes for use in workshops; Floating cranes
- B66C23/52—Floating cranes
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jib Cranes (AREA)
Abstract
955,548. Level-luffing jib cranes. ORENSTEIN-KOPPEL UND LUBEEKER MASCHINENBAU A.G. July 6, 1960, No. 23678/60. Heading B8B. In a level-luffing crane in which the jib comprises two parts 5, 7, the luffing gear 9, 10 is fixed to a supporting frame 8 pivotally mounted on the pivot shaft 4 of the jib 5. The crane is pivotable through 360 degrees on a column 2 and is luffed by spindle and nut mechanism 10 connected to the jib at 11. A lifting rope 13 extends between a winch 12 and a block 18. To lower the jibs into an inoperative position, in which the jib 7 serves as a prop for the jib - 5, the lifting block 18 is first lowered to the level of the pivot shaft 4. The free end of a rope 21 which passes round a block 19 is taken over guide and auxiliary pulleys 22, 23, 23a and connected to a rope 25 at 24, the other end of rope 25 being fixed at 26. Operation of the winch 12 draws the rope 21 into the position shown. Straps 27 between the frame 8 and the frame 3 are now disconnected and the lifting cable paid out to lower both jibs to inoperative position, Fig. 2 (not shown). The jibs are erected by reversing this procedure. The rope 21 may be connected directly to the lifting hook or hooks, in which case the auxiliary rope 25 is not required.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2367860A GB955548A (en) | 1960-07-06 | 1960-07-06 | Improvements in or relating to luffing cranes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2367860A GB955548A (en) | 1960-07-06 | 1960-07-06 | Improvements in or relating to luffing cranes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB955548A true GB955548A (en) | 1964-04-15 |
Family
ID=10199497
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2367860A Expired GB955548A (en) | 1960-07-06 | 1960-07-06 | Improvements in or relating to luffing cranes |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB955548A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104520226A (en) * | 2012-08-06 | 2015-04-15 | 伊特里克公司 | Crane vessel |
-
1960
- 1960-07-06 GB GB2367860A patent/GB955548A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104520226A (en) * | 2012-08-06 | 2015-04-15 | 伊特里克公司 | Crane vessel |
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