GB1470019A - Offshore counterbalancing crane - Google Patents
Offshore counterbalancing craneInfo
- Publication number
- GB1470019A GB1470019A GB1546875A GB1546875A GB1470019A GB 1470019 A GB1470019 A GB 1470019A GB 1546875 A GB1546875 A GB 1546875A GB 1546875 A GB1546875 A GB 1546875A GB 1470019 A GB1470019 A GB 1470019A
- Authority
- GB
- United Kingdom
- Prior art keywords
- counterweight
- deck
- counterbalancing
- pedestal
- collar
- 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
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 abstract 3
- 239000000725 suspension Substances 0.000 abstract 2
- 239000013535 sea water Substances 0.000 abstract 1
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
- B66C23/62—Constructional features or details
- B66C23/72—Counterweights or supports for balancing lifting couples
- B66C23/74—Counterweights or supports for balancing lifting couples separate from jib
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B15/00—Supports for the drilling machine, e.g. derricks or masts
- E21B15/02—Supports for the drilling machine, e.g. derricks or masts specially adapted for underwater drilling
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Jib Cranes (AREA)
- Forklifts And Lifting Vehicles (AREA)
Abstract
1470019 Counterbalancing jib cranes AMERICAN HOIST & DERRICK CO 15 April 1975 [3 May 1974] 15468/75 Heading B8B A crane comprises a pedestal 12, shown mounted on the sea floor 14, (though it could be mounted on a floating barge), a machinery deck 16 rotatably mounted on the pedestal 12 and pivotally carrying a boom 18 and a mast 22, both in a forward position. The boom 18 has a load line 50 and is luffed by a line 48. A counterweight 24 in the form of a tank 26 filled with seawater 28 is pivotally mounted on the deck 12 at a rearward position 30 and has rollers (78), Fig. 2 (not shown), arranged to engage a counterweight support collar 72 integrally supported on the pedestal 12. A suspension 42 is connected between the counterweight at 43 and the mast at 41. When hook 52 is not loaded the tension in the suspension 42 is a minimum, the counterweight 24 bearing on the collar 72. As the load is increased to the point where the counterweight 24 tends to pivot upwards about the position 30 and the rollers (78) tend to leave the collar 72 shims (90), Fig. 3 (not shown), act between the counterweight 24 and the deck 16, additional counterbalancing being obtained by the flexing of the rearward portion of the deck 16.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US466628A US3921815A (en) | 1974-05-03 | 1974-05-03 | Crane with a suspended rotatable counterbalance |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1470019A true GB1470019A (en) | 1977-04-14 |
Family
ID=23852507
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1546875A Expired GB1470019A (en) | 1974-05-03 | 1975-04-15 | Offshore counterbalancing crane |
Country Status (7)
Country | Link |
---|---|
US (1) | US3921815A (en) |
CA (1) | CA1010412A (en) |
DE (1) | DE2518613A1 (en) |
FR (1) | FR2269486B1 (en) |
GB (1) | GB1470019A (en) |
NO (1) | NO140762C (en) |
SE (1) | SE404173B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4216870A (en) * | 1978-05-24 | 1980-08-12 | Bucyrus-Erie Company | Crane mounting |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2541065A1 (en) * | 1975-09-15 | 1977-03-17 | Hans Tax | HEAVY DUTY ROTATING CRANE |
US4170309A (en) * | 1978-02-14 | 1979-10-09 | Riggers Manufacturing Company | Counterbalanced tower crane |
FR2426008A1 (en) * | 1978-05-17 | 1979-12-14 | Meca Etudes Acme Atel Const | Large crane with auxiliary crane for placing ballast - has common cable and pulleys with mast erecting mechanism |
US4243148A (en) * | 1979-05-18 | 1981-01-06 | Riggers Manufacturing Company | Counterbalanced tower crane |
WO1984001754A1 (en) * | 1982-11-08 | 1984-05-10 | Towmotor Corp | Counterweight and axle mounting arrangement |
US4732762A (en) * | 1983-03-07 | 1988-03-22 | Metropolitan Mosquito Control District | Timed release pest control composition and means |
US4557390A (en) * | 1983-09-01 | 1985-12-10 | Fmc Corporation | Suspended counterweight control system |
US4729486A (en) * | 1986-04-07 | 1988-03-08 | The Manitowoc Company, Inc. | Lift enhancing beam attachment with movable counterweights |
US4953722A (en) * | 1988-11-09 | 1990-09-04 | The Manitowoc Company, Inc. | Crane and lift enhancing beam attachment with moveable counterweight |
SK283752B6 (en) | 1996-02-29 | 2004-01-08 | Mammoet Europe B. V. | Hoisting device |
US7967158B2 (en) | 2006-10-27 | 2011-06-28 | Manitowoc Crane Companies, Llc | Mobile lift crane with variable position counterweight |
US7546928B2 (en) * | 2006-10-27 | 2009-06-16 | Manitowoc Crane Companies, Inc. | Mobile lift crane with variable position counterweight |
US8550266B2 (en) * | 2009-04-17 | 2013-10-08 | Bigge Crane & Rigging Co. | Ring derrick with stationary counterweight |
US9278834B2 (en) * | 2009-08-06 | 2016-03-08 | Manitowoc Crane Group, LLC | Lift crane with moveable counterweight |
CN102502423B (en) * | 2011-10-14 | 2014-01-15 | 三一集团有限公司 | Crane for offshore wind turbine installation vessel |
NO2694106T3 (en) * | 2012-09-12 | 2018-05-12 | ||
US10179722B2 (en) | 2014-01-27 | 2019-01-15 | Manitowoc Crane Companies, Llc | Lift crane with improved movable counterweight |
WO2015113032A1 (en) | 2014-01-27 | 2015-07-30 | Manitowoc Crane Companies, Llc | Height adjustment mechanism for an auxiliary member on a crane |
CN103935909B (en) * | 2014-04-15 | 2016-06-29 | 中石化宁波工程有限公司 | A kind of crane rotates location hanging method |
CN108751015B (en) * | 2018-05-31 | 2020-07-21 | 武汉船用机械有限责任公司 | Rotary lifting device |
CN116022663A (en) * | 2022-12-20 | 2023-04-28 | 中天科技集团海洋工程有限公司 | Mobile crane with adjustable gravity center and gravity center adjusting method |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US446043A (en) * | 1891-02-10 | Counterbalanced jib-crane | ||
US2374074A (en) * | 1943-04-22 | 1945-04-17 | Clyde Iron Works Inc | Rotatable derrick |
US3278045A (en) * | 1964-03-09 | 1966-10-11 | American Hoist & Derrick Co | Counterweight support mechanism |
US3485383A (en) * | 1968-02-09 | 1969-12-23 | Manitowoc Co | Auxiliary support for cranes |
-
1974
- 1974-05-03 US US466628A patent/US3921815A/en not_active Expired - Lifetime
-
1975
- 1975-04-15 GB GB1546875A patent/GB1470019A/en not_active Expired
- 1975-04-18 SE SE7504499A patent/SE404173B/en unknown
- 1975-04-23 CA CA225,280A patent/CA1010412A/en not_active Expired
- 1975-04-24 DE DE19752518613 patent/DE2518613A1/en not_active Ceased
- 1975-04-30 FR FR7513612A patent/FR2269486B1/fr not_active Expired
- 1975-05-02 NO NO751582A patent/NO140762C/en unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4216870A (en) * | 1978-05-24 | 1980-08-12 | Bucyrus-Erie Company | Crane mounting |
Also Published As
Publication number | Publication date |
---|---|
NO140762B (en) | 1979-07-30 |
SE7504499L (en) | 1975-11-04 |
NO140762C (en) | 1979-11-07 |
US3921815A (en) | 1975-11-25 |
CA1010412A (en) | 1977-05-17 |
DE2518613A1 (en) | 1975-11-13 |
NO751582L (en) | 1975-11-04 |
SE404173B (en) | 1978-09-25 |
FR2269486A1 (en) | 1975-11-28 |
FR2269486B1 (en) | 1977-07-08 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee |