GB1128017A - Telescopic booms - Google Patents
Telescopic boomsInfo
- Publication number
- GB1128017A GB1128017A GB4905567A GB4905567A GB1128017A GB 1128017 A GB1128017 A GB 1128017A GB 4905567 A GB4905567 A GB 4905567A GB 4905567 A GB4905567 A GB 4905567A GB 1128017 A GB1128017 A GB 1128017A
- Authority
- GB
- United Kingdom
- Prior art keywords
- section
- sections
- boom
- assembly
- ram
- 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
Abstract
1,128,017. Jib cranes. GROVE MFG. CO. 29 Sept., 1965 [8 April, 1965], No. 49055/67. Divided out of 1,128,016. Heading B8B. A crane boom 3, Fig. 2, comprises four sections 12. . . 15 telescopically disposed one in another, the sections 13, 14 being moved by telescopic hydraulic rams 43, 64, Fig. 4, and the section 15 being extended relative to the section 14 by means of an extension rod assembly 81, Figs. 10, 11, which after the sections 14 and 15 have been extended relative to the section 13 is connected between the section 15 and the section 13 to retain the section 15 stationary, while the section 14 is retracted. The boom 3 is pivoted at 4 to a housing 6 which includes a control cab 7 and is slewably mounted on a vehicle 1 having hydraulically extensible outriggers 2, hydraulic rams 9 being provided for pivoting the boom. Alternatively, the crane may be at a fixed location. It may have only three sections, the section 12 being omitted. The sections are of rectangular cross-section and the section 12 carries at its inner end a platform (27), Figs. 1 and 3 (not shown), for an hydraulically powered hoist winch (31), the platform being pivotable downwardly to give access to the end of the boom. Hoses (34) for the rams extend from the latter round a wheel rotatably mounted at the inner end of the boom to a spring-loaded reel (35). The section 13 has an upper housing 41 disposed within which is the ram 43. The section 15 is lockable in its extended or telescoped position to the outer end of section 14 by a pin 80, see also Fig. 8 (not shown), the pin being passed through apertures (58) in the section 14 and either of apertures 75, 76 in the section 15. A hoist cable 17 extends from the winch (31) along the boom to a nose assembly 16 on the section 15 and a hook assembly 18, the cable being guided along the boom by a channel 19 on the section 12, a drum on the section 13, and a loop 57 on the section 14. To facilitate movement of the sections relative to one another, the section 12 has roller bearings (38) for supporting the section 13 which has roller bearings 42 for engaging the section 12, and the section 13 has roller bearings 49 for supporting the section 14 which has roller bearings 69 for engaging the section 13. The section 14 has a hollow core 59 which extends inside the section 14 in spaced relation to the inner surfaces thereof, one end of the core being fixed to the inner end of the section 14 and the other end having skids 63 for sliding engagement with the section 15 when the latter is telescoped inside the section 14, the ram 64 extending within the core 59 between connections on the outer end of the core and the section 13. The rod assembly 81 comprises two sections 82, 83 and in use the section 82 is telescoped into the section 83 until stopped by a collar 84, and after the sections 14, 15 have been extended by the ram 64 the assembly is connected by means of clips 85, 86 thereon between a lug 74 on the section 15 and a bushing 87 on the section 13. The section 14 is then retracted by the ram 64, the section 15 remaining stationary and being thereafter locked by the pin 80 to the section 14. The ram 64 is again operated to extend both sections 14 and 15 and the assembly 81 drops away from the boom. The section 15 is retracted into the section 14 by actuating the winch (31) with the hook assembly 18 against the nose assembly 16.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US446602A US3243052A (en) | 1965-04-08 | 1965-04-08 | Telescopic crane boom with longitudinally extending cylinder connector |
US534538A US3315821A (en) | 1966-03-15 | 1966-03-15 | Four-section fully hydraulically operated boom |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1128017A true GB1128017A (en) | 1968-09-25 |
Family
ID=27034682
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4905567A Expired GB1128017A (en) | 1965-04-08 | 1965-09-29 | Telescopic booms |
GB4146965A Expired GB1128016A (en) | 1965-04-08 | 1965-09-29 | Telescopic crane booms |
GB1124467A Expired GB1171714A (en) | 1965-04-08 | 1967-03-09 | Four-Section Fully Hydraulically Operated Crane Boom |
Family Applications After (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4146965A Expired GB1128016A (en) | 1965-04-08 | 1965-09-29 | Telescopic crane booms |
GB1124467A Expired GB1171714A (en) | 1965-04-08 | 1967-03-09 | Four-Section Fully Hydraulically Operated Crane Boom |
Country Status (9)
Country | Link |
---|---|
JP (1) | JPS4835181B1 (en) |
BE (2) | BE674945A (en) |
CH (2) | CH467716A (en) |
DE (2) | DE1506519C2 (en) |
DK (1) | DK121778B (en) |
ES (1) | ES337980A2 (en) |
GB (3) | GB1128017A (en) |
NL (2) | NL6600760A (en) |
SE (3) | SE307831B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111683891A (en) * | 2018-02-16 | 2020-09-18 | 株式会社多田野 | Crane with a movable crane |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2638185C3 (en) * | 1976-08-25 | 1979-10-11 | O & K Orenstein & Koppel Ag, 1000 Berlin | Telescopic boom for mobile cranes |
JPS5591001U (en) * | 1978-12-19 | 1980-06-24 | ||
SE501102C2 (en) * | 1993-04-26 | 1994-11-14 | Hiab Ab | Extendable crane arm |
US11117789B2 (en) * | 2018-06-04 | 2021-09-14 | Manitowoc Crane Companies, Llc | Telescoping boom with rotary extension and locking system |
CN111873952B (en) * | 2020-08-13 | 2022-05-20 | 青岛中汽特种汽车有限公司 | Engineering vehicle landing leg rotating fixing and detecting device |
CN112711139B (en) * | 2021-01-04 | 2023-04-11 | 业成科技(成都)有限公司 | Near-to-eye display device and optical system thereof |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2571858A (en) * | 1947-11-04 | 1951-10-16 | Garland Crane Company | Boom for light hoisting |
US2746612A (en) * | 1952-07-12 | 1956-05-22 | Wirz Ernst | Crane truck |
FR1279493A (en) * | 1960-11-10 | 1961-12-22 | Advanced crane | |
US3112035A (en) * | 1961-07-28 | 1963-11-26 | Drott Mfg Corp | Mobile crane |
US3171545A (en) * | 1962-12-03 | 1965-03-02 | Drott Mfg Corp | Three section telescoping crane boom |
-
1965
- 1965-08-21 DE DE19651506519 patent/DE1506519C2/en not_active Expired
- 1965-08-21 DE DE1965G0044491 patent/DE1263255B/en not_active Withdrawn
- 1965-09-29 GB GB4905567A patent/GB1128017A/en not_active Expired
- 1965-09-29 GB GB4146965A patent/GB1128016A/en not_active Expired
- 1965-12-29 SE SE1688165A patent/SE307831B/xx unknown
- 1965-12-29 SE SE1622067A patent/SE323778B/xx unknown
-
1966
- 1966-01-11 BE BE674945D patent/BE674945A/xx unknown
- 1966-01-20 NL NL6600760A patent/NL6600760A/xx unknown
- 1966-04-04 CH CH489166A patent/CH467716A/en unknown
-
1967
- 1967-03-09 GB GB1124467A patent/GB1171714A/en not_active Expired
- 1967-03-13 BE BE695439D patent/BE695439A/xx unknown
- 1967-03-14 SE SE349867A patent/SE309660B/xx unknown
- 1967-03-14 DK DK131567A patent/DK121778B/en unknown
- 1967-03-14 ES ES337980A patent/ES337980A2/en not_active Expired
- 1967-03-15 NL NL6703903A patent/NL6703903A/xx unknown
- 1967-03-15 CH CH372367A patent/CH463053A/en unknown
-
1970
- 1970-12-03 JP JP45106367A patent/JPS4835181B1/ja active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111683891A (en) * | 2018-02-16 | 2020-09-18 | 株式会社多田野 | Crane with a movable crane |
CN111683891B (en) * | 2018-02-16 | 2022-09-09 | 株式会社多田野 | Crane with a movable crane |
Also Published As
Publication number | Publication date |
---|---|
SE307831B (en) | 1969-01-20 |
SE323778B (en) | 1970-05-11 |
CH467716A (en) | 1969-01-31 |
NL6703903A (en) | 1967-09-18 |
CH463053A (en) | 1968-09-30 |
SE309660B (en) | 1969-03-31 |
ES337980A2 (en) | 1968-03-16 |
DK121778B (en) | 1971-11-29 |
BE674945A (en) | 1966-07-11 |
GB1128016A (en) | 1968-09-25 |
NL6600760A (en) | 1966-10-10 |
DE1506519C2 (en) | 1974-10-31 |
JPS4835181B1 (en) | 1973-10-26 |
DE1263255B (en) | 1968-03-14 |
BE695439A (en) | 1967-09-13 |
DE1506519B1 (en) | 1970-02-26 |
DE1481754B2 (en) | 1976-04-01 |
GB1171714A (en) | 1969-11-26 |
DE1481754A1 (en) | 1969-06-04 |
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