GB1534977A - Lift crane assembly - Google Patents

Lift crane assembly

Info

Publication number
GB1534977A
GB1534977A GB4401976A GB4401976A GB1534977A GB 1534977 A GB1534977 A GB 1534977A GB 4401976 A GB4401976 A GB 4401976A GB 4401976 A GB4401976 A GB 4401976A GB 1534977 A GB1534977 A GB 1534977A
Authority
GB
United Kingdom
Prior art keywords
mast
gantry
bed
lift crane
oct
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
Application number
GB4401976A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Manitowoc Co Inc
Original Assignee
Manitowoc Co Inc
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
Priority claimed from US05/625,197 external-priority patent/US4050586A/en
Application filed by Manitowoc Co Inc filed Critical Manitowoc Co Inc
Publication of GB1534977A publication Critical patent/GB1534977A/en
Expired 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
    • B66C23/18—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
    • B66C23/36—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 mounted on road or rail vehicles; Manually-movable jib-cranes for use in workshops; Floating cranes
    • 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
    • B66C23/72—Counterweights or supports for balancing lifting couples
    • B66C23/74—Counterweights or supports for balancing lifting couples separate from jib

Abstract

1534977 Jib cranes MANITOWOC CO Inc 22 Oct 1976 [23 Oct 1975 (2)] 44019/76 Heading B8H A self-erecting mast and boom support assembly for a lift crane 10 comprises a mast 27 and a gantry 31 each pivotally mounted adjacent one end thereof on the bed 20 such that the mast 27 rests on a portion of the gantry 31 when they are both pivoted down into substantially horizontal rearwardly extending positions (as indicated by broken lines). Extension of cylinder 32 pivoted on the bed 20 at 53 and the free end of the gantry 31 raises the gantry 31 to working position and the mast 27 to a rearwardly inclined intermediate position (shown by full lines), a second cylinder 55 connected between the bed 20 and the mast 27 (at 58) being actuated to pivot the mast 27 to a forwardly inclined position (shown by broken lines).
GB4401976A 1975-10-23 1976-10-22 Lift crane assembly Expired GB1534977A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US62511975A 1975-10-23 1975-10-23
US05/625,197 US4050586A (en) 1975-10-23 1975-10-23 Apparatus for raising & lowering a mast and boom on a mobile crane

Publications (1)

Publication Number Publication Date
GB1534977A true GB1534977A (en) 1978-12-06

Family

ID=27089824

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4401976A Expired GB1534977A (en) 1975-10-23 1976-10-22 Lift crane assembly

Country Status (5)

Country Link
JP (1) JPS5912599B2 (en)
DE (1) DE2647535C2 (en)
FR (1) FR2328652A1 (en)
GB (1) GB1534977A (en)
NL (1) NL167133C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113120781A (en) * 2021-04-16 2021-07-16 中铁建工集团建筑安装有限公司 Attached arm hoisting device

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2933382A1 (en) * 1979-08-17 1981-04-09 Leo Gottwald KG, 4000 Düsseldorf CRANE, IN PARTICULAR LARGE CRANE
DE19944927C2 (en) 1999-09-13 2001-10-25 Atecs Mannesmann Ag Port crane, in particular mobile harbor crane for normal and heavy load operation

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2774484A (en) * 1953-05-20 1956-12-18 Osgood Company Gantry
US3278045A (en) * 1964-03-09 1966-10-11 American Hoist & Derrick Co Counterweight support mechanism
FR1458527A (en) * 1965-09-27 1966-03-04 Loire Atel Forges Improvements to the framework of lifting devices, such as mobile cranes
US3335877A (en) * 1966-04-18 1967-08-15 Bucyrus Erie Co Lowerable a-frame assembly for mobile cranes and the like
DE1531135B2 (en) * 1967-08-11 1971-07-22 Ruston Bucyrus Ltd , Lincoln (Groß britanmen) FOLDING GUARD STAND FOR CRANE WAGON
US3485383A (en) * 1968-02-09 1969-12-23 Manitowoc Co Auxiliary support for cranes
DE2312191A1 (en) * 1973-03-12 1974-09-12 Erich Sennebogen VEHICLE CRANE
DE2351776A1 (en) * 1973-10-16 1975-04-30 Rheinstahl Ag Lorry-mounted jib crane - has duplex telescopic jib halves supported in separate brackets with derricking rams below

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113120781A (en) * 2021-04-16 2021-07-16 中铁建工集团建筑安装有限公司 Attached arm hoisting device
CN113120781B (en) * 2021-04-16 2022-06-14 中铁建工集团建筑安装有限公司 Attached arm hoisting device

Also Published As

Publication number Publication date
NL167133C (en) 1981-11-16
JPS5255157A (en) 1977-05-06
JPS5912599B2 (en) 1984-03-24
NL7611754A (en) 1977-04-26
DE2647535A1 (en) 1977-05-05
FR2328652B1 (en) 1982-07-02
DE2647535C2 (en) 1983-12-22
NL167133B (en) 1981-06-16
FR2328652A1 (en) 1977-05-20

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee