GB1118978A - Safety operating system for cranes with telescopic jibs - Google Patents
Safety operating system for cranes with telescopic jibsInfo
- Publication number
- GB1118978A GB1118978A GB40949/66A GB4094966A GB1118978A GB 1118978 A GB1118978 A GB 1118978A GB 40949/66 A GB40949/66 A GB 40949/66A GB 4094966 A GB4094966 A GB 4094966A GB 1118978 A GB1118978 A GB 1118978A
- Authority
- GB
- United Kingdom
- Prior art keywords
- jib
- winch
- cranes
- crane
- sept
- 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
- B66C23/62—Constructional features or details
- B66C23/64—Jibs
- B66C23/70—Jibs constructed of sections adapted to be assembled to form jibs or various lengths
- B66C23/701—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic
- B66C23/705—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic telescoped by hydraulic jacks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/18—Control systems or devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C2700/00—Cranes
- B66C2700/06—Cranes in which the lifting movement is done with a hydraulically controlled plunger
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automation & Control Theory (AREA)
- Jib Cranes (AREA)
Abstract
1,118,978. Cranes with telescopic jibs. JEFFREY GALION MFG. CO. 13 Sept., 1966 [15 Sept., 1965], No. 40949/66. Heading B8B. When the hoisting rope 26 of a jib crane becomes taut, due to a lifting block 30 abutting the end of the jib when the jib is telescopically extended, a winch brake is disengaged so that the winch may be rotated by the pull of the hoisting rope, thereby preventing damage to the crane. At the same time that hydraulic fluid is supplied to rams 21a, 21b to extend the jib it is also supplied through a pilot line to the winch brake to release it. As the winch is turned by the pull on the hoist line, fluid is pumped through a relief valve which normally remains closed because it is set to a higher pressure than the normal relief valve for the crane.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US487552A US3315820A (en) | 1965-09-15 | 1965-09-15 | Crane with winch releasing means |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1118978A true GB1118978A (en) | 1968-07-03 |
Family
ID=23936207
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB40949/66A Expired GB1118978A (en) | 1965-09-15 | 1966-09-13 | Safety operating system for cranes with telescopic jibs |
Country Status (2)
Country | Link |
---|---|
US (1) | US3315820A (en) |
GB (1) | GB1118978A (en) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3396852A (en) * | 1966-10-19 | 1968-08-13 | Mccabe Powers Body Company | Derrick units |
US3601259A (en) * | 1968-12-26 | 1971-08-24 | Hyster Co | Crane construction |
US3726417A (en) * | 1971-08-13 | 1973-04-10 | Fmc Corp | Boom extension control system |
US4100973A (en) * | 1976-04-05 | 1978-07-18 | Altec Industries, Inc. | Side load protection arrangement for rotating equipment |
US5645180A (en) * | 1994-10-26 | 1997-07-08 | Knight Industries, Inc. | Floor mounted rotatable jib crane |
JP6693246B2 (en) * | 2016-04-08 | 2020-05-13 | 株式会社タダノ | crane |
CN106629426B (en) * | 2016-12-30 | 2018-12-11 | 徐州重型机械有限公司 | Crane |
CN109607396A (en) * | 2018-11-20 | 2019-04-12 | 广西柳工机械股份有限公司 | Loading machine boom |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2787383A (en) * | 1951-03-13 | 1957-04-02 | Baldwin Lima Hamilton Corp | Full circle boom crane |
US2919036A (en) * | 1956-08-10 | 1959-12-29 | Clifford H Raymond | Extensible boom with load level maintenance means |
US3047160A (en) * | 1961-01-03 | 1962-07-31 | Steinback G M B H | Truck crane |
US3112035A (en) * | 1961-07-28 | 1963-11-26 | Drott Mfg Corp | Mobile crane |
-
1965
- 1965-09-15 US US487552A patent/US3315820A/en not_active Expired - Lifetime
-
1966
- 1966-09-13 GB GB40949/66A patent/GB1118978A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE1456469A1 (en) | 1968-12-19 |
DE1456469B2 (en) | 1972-12-21 |
US3315820A (en) | 1967-04-25 |
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