GB1297961A - - Google Patents
Info
- Publication number
- GB1297961A GB1297961A GB764569A GB1297961DA GB1297961A GB 1297961 A GB1297961 A GB 1297961A GB 764569 A GB764569 A GB 764569A GB 1297961D A GB1297961D A GB 1297961DA GB 1297961 A GB1297961 A GB 1297961A
- Authority
- GB
- United Kingdom
- Prior art keywords
- spring
- section
- detent
- hook
- cable
- 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
- B66C23/708—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic locking devices for telescopic jibs
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jib Cranes (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB764569 | 1969-02-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1297961A true GB1297961A (ja) | 1972-11-29 |
Family
ID=9837085
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB764569A Expired GB1297961A (ja) | 1969-02-12 | 1969-02-12 |
Country Status (5)
Country | Link |
---|---|
US (1) | US3727359A (ja) |
DE (1) | DE2006429A1 (ja) |
FR (1) | FR2033326B1 (ja) |
GB (1) | GB1297961A (ja) |
NL (1) | NL7001949A (ja) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2446907A1 (fr) * | 1979-01-18 | 1980-08-14 | Telecommunications Internal Ci | Perfectionnement aux pylones telescopiques |
US4352434A (en) * | 1980-05-01 | 1982-10-05 | Fmc Corporation | Pendant supported hydraulic extensible boom |
US4489838A (en) * | 1981-08-17 | 1984-12-25 | Fmc Corporation | Low droop multi-part pendant supported boom |
US4592474A (en) * | 1981-08-17 | 1986-06-03 | Fmc Corporation | Coupling and latching mechanism for extensible boom |
US4492311A (en) * | 1981-08-17 | 1985-01-08 | Fmc Corporation | Coupling and latching mechanism for extensible boom |
US4460098A (en) * | 1982-06-30 | 1984-07-17 | Fmc Corporation | Pendant control system for pendant supported boom |
US4544071A (en) * | 1982-06-30 | 1985-10-01 | Fmc Corporation | External pendant pay-out system with anti-droop control |
US4557391A (en) * | 1982-06-30 | 1985-12-10 | Fmc Corporation | Method of controlling the angle of a pivotal boom with extensible sections |
US4491228A (en) * | 1982-06-30 | 1985-01-01 | Fmc Corporation | Floating sheave type pendant pay-out system for pendant supported boom |
US4467928A (en) * | 1982-06-30 | 1984-08-28 | Fmc Corporation | Pendant supported boom with fixed and live pendant portions |
US4492312A (en) * | 1982-06-30 | 1985-01-08 | Fmc Corporation | External pendant pay-out system with anti-droop control |
GB9204305D0 (en) * | 1992-02-28 | 1992-04-08 | Hamble Aerostructures | Locking device |
DE10022373B4 (de) * | 2000-05-08 | 2005-11-24 | Grove U.S. Llc | Verriegelungs- und Betätigungseinheit für seitliche Auslegerverriegelung |
DE10048224B4 (de) * | 2000-09-21 | 2005-06-02 | Terex-Demag Gmbh & Co. Kg | Verriegelungseinheit für einen Teleskopausleger eines Krans |
US20100212236A1 (en) * | 2005-07-15 | 2010-08-26 | Bourdages Evangeliste | Gin Pole Device for Raising and Lowering a Tower |
GB201000536D0 (en) * | 2010-01-14 | 2010-03-03 | Agco Sa | Telescopic boom for material handling vehicle |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE406143A (ja) * | ||||
US2829741A (en) * | 1951-04-25 | 1958-04-08 | Ideco Inc | Telescoping self-erecting derrick structure |
US2819803A (en) * | 1954-10-12 | 1958-01-14 | Leo B Obenchain | Boom for cranes |
US2942700A (en) * | 1955-05-27 | 1960-06-28 | Alpar Mfg Company | Telescoping tower |
US3398492A (en) * | 1966-12-21 | 1968-08-27 | Nat Crane Corp | Extendable boom |
-
1969
- 1969-02-12 GB GB764569A patent/GB1297961A/en not_active Expired
-
1970
- 1970-02-11 NL NL7001949A patent/NL7001949A/xx unknown
- 1970-02-12 FR FR7004953A patent/FR2033326B1/fr not_active Expired
- 1970-02-12 DE DE19702006429 patent/DE2006429A1/de active Pending
-
1972
- 1972-01-12 US US00217265A patent/US3727359A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
FR2033326B1 (ja) | 1975-02-21 |
DE2006429A1 (de) | 1970-08-27 |
FR2033326A1 (ja) | 1970-12-04 |
US3727359A (en) | 1973-04-17 |
NL7001949A (ja) | 1970-08-14 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PLNP | Patent lapsed through nonpayment of renewal fees |