US 12,221,324 B2
Method and hoisting yoke for taking up an elongate object
Dieter Wim Jan Rabaut, Ghent (BE); Jan Maria Koen Michielsen, Antwerp (BE); Kenneth Gerard Vannieuwenhuyse, Sint-Amandsberg (BE); and Robin Mouwen, Merksem (BE)
Assigned to DEME Offshore BE NV, Zwijndrecht (BE)
Appl. No. 17/797,746
Filed by DEME Offshore BE NV, Zwijndrecht (BE)
PCT Filed Feb. 8, 2021, PCT No. PCT/EP2021/052969
§ 371(c)(1), (2) Date Aug. 5, 2022,
PCT Pub. No. WO2021/156508, PCT Pub. Date Aug. 12, 2021.
Claims priority of application No. 2020/5071 (BE), filed on Feb. 6, 2020.
Prior Publication US 2023/0070015 A1, Mar. 9, 2023
Int. Cl. B66C 1/10 (2006.01); B66C 1/16 (2006.01); F03D 13/10 (2016.01)
CPC B66C 1/108 (2013.01) [B66C 1/16 (2013.01); F03D 13/10 (2016.05); F05B 2230/61 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A method for taking up an elongate object from a ground surface using a hoisting yoke coupled to a lifting means, wherein a support frame of the hoisting yoke extends in a longitudinal direction of the object and wherein slings provided at end parts of the support frame take up the object, said method comprising the steps of:
a) holding a first outer end of a sling by a first holding means provided at an end part of the support frame and letting a second outer end of the sling hang down from the first holding means at a position in the vicinity of the object,
b) paying out a messenger line from the end part using a messenger line winch, feeding the messenger line under the object and coupling the messenger line to the second outer end of the sling hanging from the first holding means,
c) taking in the messenger line so that the sling is carried under the object and to the relevant end part, and
d) coupling the second outer end of the sling to a second holding means provided at the end part, thus forming one of the slings for the object,
wherein the sling is lowered on one side of the object in step a) and the messenger line is lowered on another side of the object in step b),
wherein the messenger line is fed under the object in step b) by coupling a free outer end of the messenger line to an outer end of a connecting line provided under the object and running the connecting line under the object, the connecting line thereby moving the free outer end of the messenger line under the object to said one side of the object where the second outer end of the sling is situated, and
wherein another outer end of the connecting line is coupled to the second outer end of the sling hanging from the first holding means.