GB965320A - Improvements in or relating to cranes - Google Patents
Improvements in or relating to cranesInfo
- Publication number
- GB965320A GB965320A GB2804162A GB2804162A GB965320A GB 965320 A GB965320 A GB 965320A GB 2804162 A GB2804162 A GB 2804162A GB 2804162 A GB2804162 A GB 2804162A GB 965320 A GB965320 A GB 965320A
- Authority
- GB
- United Kingdom
- Prior art keywords
- derricks
- derrick
- bases
- pivot
- axis
- 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
- B66C23/525—Double slewing cranes on ships
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jib Cranes (AREA)
Abstract
965,320. Ships' derricks. T. FLADMARK. July 20, 1962 [July 20, 1961; March 2, 1962], No. 28041/62. Heading B8B. A ship's derrick 16, Fig. 1, is mounted for slewing about a pin 20 on a base 10 which is itself pivoted about a pivot 7. Two bases 10 each carrying a derrick may be mounted for independent rotation about the pivot 7. The bases are supported by rollers 11 running on a circular rail 8 and are rotated by a ring gear 9 and pinion 13. The derricks 16 are slewed by ring gears and pinions. Two rams 25 raise and lower the lifting cable. The two derricks may co-operete to raise a single heavy load. In a second embodiment, Fig. 3, derricks 32 are mounted for luffing about axes 33 on bases 10a which pivot about an axis 7a as previously described. Rams 34 luff the derricks and lifting cables 18a are raised by winches 31. Fig. 4 shows two pairs of derricks mounted on a carrier 46 which runs on rails 47 mounted longitudinally along the deck of a ship. In a third embodiment, Fig. 5, a derrick 16b is pivoted for slewing about an axis 20b to a base 10b which pivots about an axis 7b. A similar derrick may be provided at the opposite end of the base 10b instead of the cable and nook 43, 44. In all the embodiments the derricks may be constructed to luff and/or slew.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NO13795961 | 1961-07-20 | ||
| NO14347062 | 1962-03-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB965320A true GB965320A (en) | 1964-07-29 |
Family
ID=26649139
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2804162A Expired GB965320A (en) | 1961-07-20 | 1962-07-20 | Improvements in or relating to cranes |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB965320A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5018630A (en) * | 1988-11-21 | 1991-05-28 | Mcghie James R | High-capacity lift crane assembly |
-
1962
- 1962-07-20 GB GB2804162A patent/GB965320A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5018630A (en) * | 1988-11-21 | 1991-05-28 | Mcghie James R | High-capacity lift crane assembly |
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