JPS492061B1 - - Google Patents

Info

Publication number
JPS492061B1
JPS492061B1 JP3353870A JP3353870A JPS492061B1 JP S492061 B1 JPS492061 B1 JP S492061B1 JP 3353870 A JP3353870 A JP 3353870A JP 3353870 A JP3353870 A JP 3353870A JP S492061 B1 JPS492061 B1 JP S492061B1
Authority
JP
Japan
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.)
Pending
Application number
JP3353870A
Other languages
Japanese (ja)
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Publication of JPS492061B1 publication Critical patent/JPS492061B1/ja
Pending legal-status Critical Current

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)
JP3353870A 1969-04-21 1970-04-21 Pending JPS492061B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR6912472A FR2041329A5 (en) 1969-04-21 1969-04-21

Publications (1)

Publication Number Publication Date
JPS492061B1 true JPS492061B1 (en) 1974-01-18

Family

ID=9032778

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3353870A Pending JPS492061B1 (en) 1969-04-21 1970-04-21

Country Status (6)

Country Link
US (1) US3670465A (en)
JP (1) JPS492061B1 (en)
DE (1) DE2018820A1 (en)
ES (1) ES378784A1 (en)
FR (1) FR2041329A5 (en)
GB (1) GB1283831A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2363121B (en) * 2000-06-06 2003-10-29 Kuraray Co Method for producing ethylene-vinyl alcohol copolymer resin composition

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3863407A (en) * 1971-02-13 1975-02-04 Gottwald Kg Leo Telescopic crane jib
US3738075A (en) * 1971-06-16 1973-06-12 Nat Crane Corp Extendible boom with latch means for extension and retraction
GB1437526A (en) * 1972-10-09 1976-05-26 Int Harvester Co Extensible jib crane
US3958376A (en) * 1974-02-15 1976-05-25 Zip Up, Inc. Extendible tower structure
DE2519558C2 (en) * 1975-05-02 1977-05-12 Orenstein & Koppel Ag TELESCOPIC BOOM WITH HYDRAULIC ACTUATION
US4036372A (en) * 1975-12-15 1977-07-19 Clark Equipment Company Extension and retraction means for the telescopic boom assembly of a crane
GB1594096A (en) * 1976-11-11 1981-07-30 Coles Cranes Ltd Telescopic booms
FI802255A (en) * 1979-07-25 1981-01-26 Coles Cranes Ltd BOM FOER LYFTKRAN
US4327533A (en) * 1980-08-13 1982-05-04 Kidde, Inc. Crane boom extending, retracting and cooperative latching arrangement
US4433515A (en) * 1981-11-04 1984-02-28 Kidde, Inc. Remotely operable latch and locking pin for a multi-section boom including a manual fly section
US4688690A (en) * 1986-03-07 1987-08-25 Harnischfeger Corporation Method and apparatus for extending fly section of crane boom
GB8605798D0 (en) * 1986-03-10 1986-04-16 King Trailer Ltd Draw bar
DE19811813B4 (en) * 1998-03-18 2005-11-24 Grove U.S. LLC (n.d.Ges.d.Staates Delaware) Lateral boom interlock
DE10048224B4 (en) * 2000-09-21 2005-06-02 Terex-Demag Gmbh & Co. Kg Locking unit for a telescopic boom of a crane

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE376494A (en) * 1931-01-14
DE723535C (en) * 1934-09-19 1942-08-06 Gertrud Rascher Geb Triemer Mast with several telescopic mast sections
US2173095A (en) * 1938-04-14 1939-09-19 Collins Radio Co Telescoping vertical radiator and method of erecting the same
US2589080A (en) * 1949-11-05 1952-03-11 Star Drilling Machine Company Power-operated telescoping mast and braces
US2685353A (en) * 1950-11-13 1954-08-03 Us Army Telescopic structure
US2819803A (en) * 1954-10-12 1958-01-14 Leo B Obenchain Boom for cranes
US2920725A (en) * 1955-08-08 1960-01-12 Reynolds Metals Co Portable collapsible derricks
US3088543A (en) * 1960-04-16 1963-05-07 Kloeckner Humboldt Deutz Ag Extensible multi-section supporting structures
FR1430168A (en) * 1964-11-26 1966-03-04 Hydraulically extendable telescopic column
US3296757A (en) * 1965-06-23 1967-01-10 Louis N Goodman Equipment mast arrangement
US3398645A (en) * 1966-11-30 1968-08-27 Nat Crane Corp Multiple extension apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2363121B (en) * 2000-06-06 2003-10-29 Kuraray Co Method for producing ethylene-vinyl alcohol copolymer resin composition

Also Published As

Publication number Publication date
DE2018820A1 (en) 1970-11-05
ES378784A1 (en) 1972-07-16
GB1283831A (en) 1972-08-02
FR2041329A5 (en) 1971-01-29
US3670465A (en) 1972-06-20

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