FR2273750A1 - Travelling crane with multiple winches - has equal-length opposite jibs slewing on telescopic tower - Google Patents
Travelling crane with multiple winches - has equal-length opposite jibs slewing on telescopic towerInfo
- Publication number
- FR2273750A1 FR2273750A1 FR7420630A FR7420630A FR2273750A1 FR 2273750 A1 FR2273750 A1 FR 2273750A1 FR 7420630 A FR7420630 A FR 7420630A FR 7420630 A FR7420630 A FR 7420630A FR 2273750 A1 FR2273750 A1 FR 2273750A1
- Authority
- FR
- France
- Prior art keywords
- slewing
- tower
- equal
- travelling crane
- telescopic tower
- 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.)
- Granted
Links
Classifications
-
- 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
- B66C13/46—Position indicators for suspended loads or for crane elements
-
- 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
- B66C23/26—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 for use on building sites; constructed, e.g. with separable parts, to facilitate rapid assembly or dismantling, for operation at successively higher levels, for transport by road or rail
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automation & Control Theory (AREA)
- Structural Engineering (AREA)
- Transportation (AREA)
- Jib Cranes (AREA)
Abstract
The crane has a rail-mounted base (1) with a cab and a tower comprising a section (4) telescoping in and out of a fixed one (3). At the top of the tower is mounted the slewing jib, which has two sections (5, 6) of equal length extending in opposite directions. The tower can have racks with which motor driven worms engage, also apertures in which ram-operated pins engage to lock it in the extended position at the height desired. The jib sections can be arranged to slew through 360 degrees, being supported by tie ropes (8, 9).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7420630A FR2273750A1 (en) | 1974-06-07 | 1974-06-07 | Travelling crane with multiple winches - has equal-length opposite jibs slewing on telescopic tower |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7420630A FR2273750A1 (en) | 1974-06-07 | 1974-06-07 | Travelling crane with multiple winches - has equal-length opposite jibs slewing on telescopic tower |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2273750A1 true FR2273750A1 (en) | 1976-01-02 |
FR2273750B1 FR2273750B1 (en) | 1977-10-07 |
Family
ID=9140041
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7420630A Granted FR2273750A1 (en) | 1974-06-07 | 1974-06-07 | Travelling crane with multiple winches - has equal-length opposite jibs slewing on telescopic tower |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2273750A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0719725A3 (en) * | 1994-12-22 | 1996-10-23 | Mannesmann Ag | Mobile crane, particularly port mobile crane |
CN102344090A (en) * | 2010-07-27 | 2012-02-08 | 周杨 | Double-head suspension tower crane |
CN102730574A (en) * | 2012-06-29 | 2012-10-17 | 中国建筑股份有限公司 | Roof hoisting apparatus based on whole life cycle of building and introduced from exterior wall of construction part |
-
1974
- 1974-06-07 FR FR7420630A patent/FR2273750A1/en active Granted
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0719725A3 (en) * | 1994-12-22 | 1996-10-23 | Mannesmann Ag | Mobile crane, particularly port mobile crane |
CN102344090A (en) * | 2010-07-27 | 2012-02-08 | 周杨 | Double-head suspension tower crane |
CN102730574A (en) * | 2012-06-29 | 2012-10-17 | 中国建筑股份有限公司 | Roof hoisting apparatus based on whole life cycle of building and introduced from exterior wall of construction part |
Also Published As
Publication number | Publication date |
---|---|
FR2273750B1 (en) | 1977-10-07 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |