Hoists for the construction of dry-stone walls
Load-lifting equipment
Many construction sites where dry stone walls are built, are not accessible for cranes or excavators. How can large stone blocks in such places be moved and transferred? I will show below attempt a classification of simple lifting tools, which can be worn by hand in the area. < br/>
Three-leg
Bipod
Cable crane
Derrick
, The Derrick is a guyed by wire cables mast with a boom. An attached load can be moved around the mast in the radius of the jib. The Derrick was mainly used in the Anglo-Saxon linguistic area.
Historical example for the use of a Derrick's:
Portable, demountable, self developed Derrick, 2011:
[small portable dry stone guy derrick lifting gear]