ES377550A1 - Improvements in or relating to raising the masts of tower-cranes or the like - Google Patents

Improvements in or relating to raising the masts of tower-cranes or the like

Info

Publication number
ES377550A1
ES377550A1 ES377550A ES377550A ES377550A1 ES 377550 A1 ES377550 A1 ES 377550A1 ES 377550 A ES377550 A ES 377550A ES 377550 A ES377550 A ES 377550A ES 377550 A1 ES377550 A1 ES 377550A1
Authority
ES
Spain
Prior art keywords
mast
base
tower
masts
cranes
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
ES377550A
Other languages
Spanish (es)
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.)
LOIRECORD Sarl
Original Assignee
LOIRECORD Sarl
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 LOIRECORD Sarl filed Critical LOIRECORD Sarl
Publication of ES377550A1 publication Critical patent/ES377550A1/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
    • E04H12/34—Arrangements for erecting or lowering towers, masts, poles, chimney stacks, or the like
    • 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
    • B66C23/26—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 for use on building sites; constructed, e.g. with separable parts, to facilitate rapid assembly or dismantling, for operation at successively higher levels, for transport by road or rail
    • B66C23/34—Self-erecting cranes, i.e. with hoisting gear adapted for crane erection purposes

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Jib Cranes (AREA)

Abstract

A tower crane comprises a mast 1 pivoted at 3 on a frame fixed to a base 5. A lever 12 is pivoted at 13 on the base 5 and is free to slide along the mast 1 on rollers 14. The mast 1 is raised by a tackle 7, 8, 11, a force F 1 providing a turning moment F 1 L 1 associated with a turning moment F 2 L 2 due to the reaction of the lever 12 on the mast 1. In the initial position shown F 2 = F 1 x I 1 /I 2 so that the initial total turning moment=F 1 (L 1 +L 2 x I 1 /I 2 ) compared with a conventional arrangement wherein the pulley 11 is attached to the base 5, Fig. 1 (not shown), which gives F 1 L 1 .
ES377550A 1969-03-06 1970-03-05 Improvements in or relating to raising the masts of tower-cranes or the like Expired ES377550A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR6906177A FR2036720A1 (en) 1969-03-06 1969-03-06

Publications (1)

Publication Number Publication Date
ES377550A1 true ES377550A1 (en) 1973-02-01

Family

ID=9030175

Family Applications (1)

Application Number Title Priority Date Filing Date
ES377550A Expired ES377550A1 (en) 1969-03-06 1970-03-05 Improvements in or relating to raising the masts of tower-cranes or the like

Country Status (4)

Country Link
ES (1) ES377550A1 (en)
FR (1) FR2036720A1 (en)
GB (1) GB1236726A (en)
SE (1) SE350746B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115075647A (en) * 2022-06-24 2022-09-20 山西吉瑞科技发展有限公司 Power transmission tower deviation rectifying device and deviation rectifying method thereof

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108894577B (en) * 2018-06-02 2020-05-01 谭湘海 Quick pole setting equipment of wire pole for electric power engineering
CN110847690B (en) * 2019-11-26 2021-03-12 安徽省徽源电杆有限公司 Telegraph pole planting frame

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115075647A (en) * 2022-06-24 2022-09-20 山西吉瑞科技发展有限公司 Power transmission tower deviation rectifying device and deviation rectifying method thereof
CN115075647B (en) * 2022-06-24 2024-02-02 山西吉瑞科技发展有限公司 Power transmission tower deviation correcting device and deviation correcting method thereof

Also Published As

Publication number Publication date
SE350746B (en) 1972-11-06
FR2036720A1 (en) 1970-12-31
DE2010037B2 (en) 1972-08-31
GB1236726A (en) 1971-06-23
DE2010037A1 (en) 1971-09-30

Similar Documents

Publication Publication Date Title
GB1311767A (en) Tower cranes with counterbalancing arm
GB1084005A (en) Improvements in or relating to hoisting tackle
ES391235A1 (en) Assembly of block pulleys provided with a load measuring system
ES407893A1 (en) Masts for supporting projectors
ES415153A1 (en) Assemblage of pieces of a metal frame
ES411638A1 (en) Tower cranes
ES244803U (en) Cable hoist pulley.
ES377550A1 (en) Improvements in or relating to raising the masts of tower-cranes or the like
SE8002941L (en) LIFTING DEVICE
ES326429A1 (en) Tower crane, transportable and rapid assembly. (Machine-translation by Google Translate, not legally binding)
ES406618A1 (en) Inclinable jib for hoisting and transporting loads, in particular for cranes
NL167133C (en) CRANE WITH A SELF-Raising Mast and a Boom.
GB910626A (en) Floating crane with luffing jib mounted on a rotatable member
GB1132848A (en) Improved jib crane
JPS51149654A (en) Horizontally load carrying crane
ES445047A1 (en) Improvements introduced in a crane with a moving arm horizontal. (Machine-translation by Google Translate, not legally binding)
JPS52101564A (en) Lifting tool with automatic centering mechanism
GB1066973A (en) Improvements in or relating to prefabricated buildings
ES337216A3 (en) A grua torre. (Machine-translation by Google Translate, not legally binding)
GB828262A (en) Improvements in or relating to swivelling fairleads
JPS5220550A (en) Deck crane
JPS5244354A (en) Propulsion force support unit
GB917994A (en) Device for extending the tower of rotary-tower cranes
ES152296U (en) Improvements introduced in the assembly of gruas torre. (Machine-translation by Google Translate, not legally binding)
ES162779U (en) Device for moving the cable of the array of a crane. (Machine-translation by Google Translate, not legally binding)