FR2409224A1 - Lifting sling attachment for crane - has cam to lock rope when hook is over centre of gravity of load - Google Patents

Lifting sling attachment for crane - has cam to lock rope when hook is over centre of gravity of load

Info

Publication number
FR2409224A1
FR2409224A1 FR7735054A FR7735054A FR2409224A1 FR 2409224 A1 FR2409224 A1 FR 2409224A1 FR 7735054 A FR7735054 A FR 7735054A FR 7735054 A FR7735054 A FR 7735054A FR 2409224 A1 FR2409224 A1 FR 2409224A1
Authority
FR
France
Prior art keywords
cam
load
hook
gravity
crane
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.)
Granted
Application number
FR7735054A
Other languages
French (fr)
Other versions
FR2409224B1 (en
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.)
Alsthom Atlantique SA
Original Assignee
Alsthom Atlantique SA
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 Alsthom Atlantique SA filed Critical Alsthom Atlantique SA
Priority to FR7735054A priority Critical patent/FR2409224A1/en
Publication of FR2409224A1 publication Critical patent/FR2409224A1/en
Application granted granted Critical
Publication of FR2409224B1 publication Critical patent/FR2409224B1/fr
Granted 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
    • B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
    • B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
    • B66C1/12—Slings comprising chains, wires, ropes, or bands; Nets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
    • B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Load-Engaging Elements For Cranes (AREA)

Abstract

A crane sling (12) has an attachment (10) which ensures that the load remains level when being lifted. A central plate (25) has a bell crank lever (27) pivoted on each side. The bell crank levers (27) support plates (30) which, in turn, support an oval cam (35) with a groove for the rope (15) of the sling (12). A spring (39) holes the cam (35) clear of the plate (25) so that the rope (15) can run freely over the cam (35) until the hook is vertically over the centre of gravity of the load (19). The resultant tensions in the ropes (14, 15) then lock the cam (35) against the plate (25).
FR7735054A 1977-11-22 1977-11-22 Lifting sling attachment for crane - has cam to lock rope when hook is over centre of gravity of load Granted FR2409224A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7735054A FR2409224A1 (en) 1977-11-22 1977-11-22 Lifting sling attachment for crane - has cam to lock rope when hook is over centre of gravity of load

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7735054A FR2409224A1 (en) 1977-11-22 1977-11-22 Lifting sling attachment for crane - has cam to lock rope when hook is over centre of gravity of load

Publications (2)

Publication Number Publication Date
FR2409224A1 true FR2409224A1 (en) 1979-06-15
FR2409224B1 FR2409224B1 (en) 1981-03-06

Family

ID=9197895

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7735054A Granted FR2409224A1 (en) 1977-11-22 1977-11-22 Lifting sling attachment for crane - has cam to lock rope when hook is over centre of gravity of load

Country Status (1)

Country Link
FR (1) FR2409224A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0207418A1 (en) * 1985-06-26 1987-01-07 Riley, Keith Lifting device
WO2021064535A1 (en) * 2019-10-03 2021-04-08 Nexter Systems Wheel-handling device and method using such a device

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR322847A (en) * 1902-05-27 1903-02-16 Chevenier Louis Improvements in hoists
US1346243A (en) * 1919-12-05 1920-07-13 V L Ney Hay Tool Company Hay-carrier
FR677148A (en) * 1929-06-20 1930-03-04 Hoist for goods, bicycles, etc.
GB624753A (en) * 1942-06-15 1949-06-15 Leslie Meek Caldwell Improvements in or relating to lifting slings
FR948982A (en) * 1943-03-11 1949-08-17 Felco Hoists Ltd self-balancing sling for lifting devices
US2661231A (en) * 1948-08-25 1953-12-01 Leslie M Caldwell Sling
FR1094658A (en) * 1953-07-21 1955-05-23
FR1105779A (en) * 1954-07-28 1955-12-07 Davaine Fils Et Cie slinging
GB805264A (en) * 1954-01-12 1958-12-03 Archer Jean Francois Improvements in or relating to rope slings
GB1360190A (en) * 1971-06-14 1974-07-17 Harland Wolff Ltd Lifting beam

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR322847A (en) * 1902-05-27 1903-02-16 Chevenier Louis Improvements in hoists
US1346243A (en) * 1919-12-05 1920-07-13 V L Ney Hay Tool Company Hay-carrier
FR677148A (en) * 1929-06-20 1930-03-04 Hoist for goods, bicycles, etc.
GB624753A (en) * 1942-06-15 1949-06-15 Leslie Meek Caldwell Improvements in or relating to lifting slings
FR948982A (en) * 1943-03-11 1949-08-17 Felco Hoists Ltd self-balancing sling for lifting devices
US2661231A (en) * 1948-08-25 1953-12-01 Leslie M Caldwell Sling
FR1094658A (en) * 1953-07-21 1955-05-23
GB805264A (en) * 1954-01-12 1958-12-03 Archer Jean Francois Improvements in or relating to rope slings
FR1105779A (en) * 1954-07-28 1955-12-07 Davaine Fils Et Cie slinging
GB1360190A (en) * 1971-06-14 1974-07-17 Harland Wolff Ltd Lifting beam

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0207418A1 (en) * 1985-06-26 1987-01-07 Riley, Keith Lifting device
WO2021064535A1 (en) * 2019-10-03 2021-04-08 Nexter Systems Wheel-handling device and method using such a device
FR3101574A1 (en) * 2019-10-03 2021-04-09 Nexter Systems WHEEL HANDLING DEVICE AND METHOD USING SUCH A DEVICE

Also Published As

Publication number Publication date
FR2409224B1 (en) 1981-03-06

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Legal Events

Date Code Title Description
ST Notification of lapse