3. Lifting wedges
Lifting jibs are "C"-shaped pieces of equipment whose load-bearing lower arm is connected to the upper arm by a vertical upright.
The upper arm can also be fitted with a self-balancing or adjustment system to reconcile the center of gravity when empty and when loaded.
Depending on the different loads to be entered, the cés can be :
cut into the mass;
in the form of a reconstituted box;
with balancing counterweight ;
with adjustable ring ;
with spring balancing system.
The main advantages of a cé are its...
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Lifting wedges
Bibliography
INRS (Institut national de recherche et de sécurité) publications
ED 518 – Safety in the use of light manual handling tools and equipment
ED 389 – The slinger's handbook.
Publications OPPBTP (Organisme professionnel de prévention du bâtiment et des travaux publics)
— Practical manual no. 18 – Ropes – cables – chains
— Practical manual...
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