EP0260112A3 - Demountable crane structure - Google Patents

Demountable crane structure Download PDF

Info

Publication number
EP0260112A3
EP0260112A3 EP87307934A EP87307934A EP0260112A3 EP 0260112 A3 EP0260112 A3 EP 0260112A3 EP 87307934 A EP87307934 A EP 87307934A EP 87307934 A EP87307934 A EP 87307934A EP 0260112 A3 EP0260112 A3 EP 0260112A3
Authority
EP
European Patent Office
Prior art keywords
crane
telescoped
backleg
tubes
limited
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.)
Withdrawn
Application number
EP87307934A
Other languages
German (de)
French (fr)
Other versions
EP0260112A2 (en
Inventor
Bruce A. Copp
Jerry A. Blair
Robert A. Fredstrom
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.)
Amclyde Engineered Products Inc
Original Assignee
Amclyde Engineered Products Inc
Amca International Corp
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 by Amclyde Engineered Products Inc, Amca International Corp filed Critical Amclyde Engineered Products Inc
Publication of EP0260112A2 publication Critical patent/EP0260112A2/en
Publication of EP0260112A3 publication Critical patent/EP0260112A3/en
Withdrawn legal-status Critical Current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
    • B66C23/52—Floating cranes

Abstract

An improved crane (10) is disclosed which can be reconfigured from a lifting configuration to a stowed configuration. In the stowed configuration, the over­ all height of the crane (10) is much reduced to permit the crane to be moved under overhead obstructions and also lower the center of gravity of the crane to increase stability. A backleg (30) of the crane pro­ vides a novel tension bearing capability where tubes of varying diameter are telescoped within each other. The backleg can be telescoped to a minimum length limited by contact between interior reinforcing rings (118) and stop blocks (122) and telescoped to a maximum length, limited by contacts between annular stop rings (124, 126) mounted on the telescoped tubes.
EP87307934A 1986-09-08 1987-09-08 Demountable crane structure Withdrawn EP0260112A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US90525186A 1986-09-08 1986-09-08
US905251 1986-09-08

Publications (2)

Publication Number Publication Date
EP0260112A2 EP0260112A2 (en) 1988-03-16
EP0260112A3 true EP0260112A3 (en) 1988-09-21

Family

ID=25420495

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87307934A Withdrawn EP0260112A3 (en) 1986-09-08 1987-09-08 Demountable crane structure

Country Status (2)

Country Link
EP (1) EP0260112A3 (en)
JP (1) JPS6374894A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2088114B1 (en) * 2008-02-07 2010-11-03 Itrec B.V. Crane vessel
EP4100355A4 (en) * 2020-02-06 2024-03-27 Noble Rig Holdings Ltd Hoist apparatus for mobile offshore platform

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR875775A (en) * 1941-10-07 1942-10-02 Further training in ship cranes
DE860703C (en) * 1950-10-07 1952-12-22 Aug Kloenne Fa Crane, especially floating crane
DE872832C (en) * 1949-04-21 1953-04-09 Guenther Dr-Ing Lehmann Floating crane
DE927470C (en) * 1952-05-09 1955-05-09 Demag Ag Floating crane
DE1962895A1 (en) * 1969-11-11 1971-05-19 Kone Osakeyhtioe Fa Ship crane
NL7506897A (en) * 1974-06-13 1975-12-16 Manitowoc Co CRANE.
GB2023538A (en) * 1978-06-07 1980-01-03 Manitowoc Co Selferecting ring supported tower crane
GB2088822A (en) * 1980-12-10 1982-06-16 Triplett James Thomas Floating crane apparatus
GB2151580A (en) * 1983-12-27 1985-07-24 Cdf Ss A self-propelled lifting device

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR875775A (en) * 1941-10-07 1942-10-02 Further training in ship cranes
DE872832C (en) * 1949-04-21 1953-04-09 Guenther Dr-Ing Lehmann Floating crane
DE860703C (en) * 1950-10-07 1952-12-22 Aug Kloenne Fa Crane, especially floating crane
DE927470C (en) * 1952-05-09 1955-05-09 Demag Ag Floating crane
DE1962895A1 (en) * 1969-11-11 1971-05-19 Kone Osakeyhtioe Fa Ship crane
NL7506897A (en) * 1974-06-13 1975-12-16 Manitowoc Co CRANE.
GB2023538A (en) * 1978-06-07 1980-01-03 Manitowoc Co Selferecting ring supported tower crane
GB2088822A (en) * 1980-12-10 1982-06-16 Triplett James Thomas Floating crane apparatus
GB2151580A (en) * 1983-12-27 1985-07-24 Cdf Ss A self-propelled lifting device

Also Published As

Publication number Publication date
EP0260112A2 (en) 1988-03-16
JPS6374894A (en) 1988-04-05

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Owner name: AMCLYDE ENGINEERED PRODUCTS, INC. (A DELAWARE CORP

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Effective date: 19900823

RIN1 Information on inventor provided before grant (corrected)

Inventor name: BLAIR, JERRY A.

Inventor name: COPP, BRUCE A.

Inventor name: FREDSTROM, ROBERT A.