B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
B66C3/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith and intended primarily for transmitting lifting forces to loose materials; Grabs
B66C3/06—Grabs actuated by a single rope or chain
B66C3/10—Grabs actuated by a single rope or chain and having buckets opening automatically upon the grab being lowered on to the dump of material
Procede de regroupement et de transport de balles cylindriques de vegetaux, et remorque attelee a un tracteur agricole pour la mise en oeuvre du procede