GB1261804A - Safety device for cranes with hydraulically luggable jibs - Google Patents

Safety device for cranes with hydraulically luggable jibs

Info

Publication number
GB1261804A
GB1261804A GB1963969A GB1963969A GB1261804A GB 1261804 A GB1261804 A GB 1261804A GB 1963969 A GB1963969 A GB 1963969A GB 1963969 A GB1963969 A GB 1963969A GB 1261804 A GB1261804 A GB 1261804A
Authority
GB
United Kingdom
Prior art keywords
hydraulically
safety device
luggable
jibs
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
GB1963969A
Inventor
Wolfgang Wagner
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.)
SCHWERMASCHB GEORGI DIMITROFF
Original Assignee
SCHWERMASCHB GEORGI DIMITROFF
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 SCHWERMASCHB GEORGI DIMITROFF filed Critical SCHWERMASCHB GEORGI DIMITROFF
Priority to GB1963969A priority Critical patent/GB1261804A/en
Publication of GB1261804A publication Critical patent/GB1261804A/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
    • B66C23/88—Safety gear
    • B66C23/90—Devices for indicating or limiting lifting moment

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jib Cranes (AREA)
  • Control And Safety Of Cranes (AREA)

Abstract

1,261,804. Crane safety devices. SCHWERMASCHINENBAU GEORGI DIMITROFF MAGDEBURG-BUCKAU VEB. 17 April, 1969, No. 19639/69. Heading B8B. A safety device for limiting the load moment of a crane having an hydraulically luffable jib 1 has the base of a luffing piston and cylinder device 2 pivotally mounted at 3 on a lever 4 pivoted at 5 and bearing on a force-measuring means 6 which supplies a control signal if the force exceeds a predetermined value. This predetermined value may be constant or may vary in dependence on the length of the jib.
GB1963969A 1969-04-17 1969-04-17 Safety device for cranes with hydraulically luggable jibs Expired GB1261804A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1963969A GB1261804A (en) 1969-04-17 1969-04-17 Safety device for cranes with hydraulically luggable jibs

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1963969A GB1261804A (en) 1969-04-17 1969-04-17 Safety device for cranes with hydraulically luggable jibs

Publications (1)

Publication Number Publication Date
GB1261804A true GB1261804A (en) 1972-01-26

Family

ID=10132709

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1963969A Expired GB1261804A (en) 1969-04-17 1969-04-17 Safety device for cranes with hydraulically luggable jibs

Country Status (1)

Country Link
GB (1) GB1261804A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4134500A (en) * 1976-11-22 1979-01-16 Sauber Charles J Actuator linkage for mobile derricks and the like
EP0028462A1 (en) * 1979-10-08 1981-05-13 Melville James Apparatus for lifting or lowering a load
GB2174359A (en) * 1985-04-20 1986-11-05 Kombilift Ltd Load lifting apparatus

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4134500A (en) * 1976-11-22 1979-01-16 Sauber Charles J Actuator linkage for mobile derricks and the like
EP0028462A1 (en) * 1979-10-08 1981-05-13 Melville James Apparatus for lifting or lowering a load
GB2174359A (en) * 1985-04-20 1986-11-05 Kombilift Ltd Load lifting apparatus
US4687406A (en) * 1985-04-20 1987-08-18 Kombilift Limited Load lifting apparatus with overturning prevention means
AU589955B2 (en) * 1985-04-20 1989-10-26 Simon Aerials Limited Load lifting apparatus

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