JPS53111959A - Derrick crane - Google Patents

Derrick crane

Info

Publication number
JPS53111959A
JPS53111959A JP2644777A JP2644777A JPS53111959A JP S53111959 A JPS53111959 A JP S53111959A JP 2644777 A JP2644777 A JP 2644777A JP 2644777 A JP2644777 A JP 2644777A JP S53111959 A JPS53111959 A JP S53111959A
Authority
JP
Japan
Prior art keywords
derrick crane
boom
freight
mast
workability
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.)
Pending
Application number
JP2644777A
Other languages
Japanese (ja)
Inventor
Yoshio Ichikawa
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.)
IHI Corp
Original Assignee
IHI 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 IHI Corp filed Critical IHI Corp
Priority to JP2644777A priority Critical patent/JPS53111959A/en
Publication of JPS53111959A publication Critical patent/JPS53111959A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To enhance the workability of a derrick crane by turning a mast stably supported on a base tower when changing the direction of a boom and by easily mounting an auxiliary boom to separately handle a freight.
COPYRIGHT: (C)1978,JPO&Japio
JP2644777A 1977-03-10 1977-03-10 Derrick crane Pending JPS53111959A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2644777A JPS53111959A (en) 1977-03-10 1977-03-10 Derrick crane

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2644777A JPS53111959A (en) 1977-03-10 1977-03-10 Derrick crane

Publications (1)

Publication Number Publication Date
JPS53111959A true JPS53111959A (en) 1978-09-29

Family

ID=12193747

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2644777A Pending JPS53111959A (en) 1977-03-10 1977-03-10 Derrick crane

Country Status (1)

Country Link
JP (1) JPS53111959A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50112962A (en) * 1974-02-16 1975-09-04

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50112962A (en) * 1974-02-16 1975-09-04

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