Hydraulic jigger
A hydraulic jigger is a hydraulically-powered mechanical winch. From the mid-19th century, hydraulic power became available throughout the increasingly modern dockyards and warehouses.
A hydraulic jigger is a hydraulically-powered mechanical winch. From the mid-19th century, hydraulic power became available throughout the increasingly modern dockyards and warehouses.
A hydraulic jigger is a hydraulically-powered mechanical winch. From the mid-19th century, hydraulic power became available throughout the increasingly modern dockyards and warehouses.
Source: Wikipedia "Hydraulic jigger" · CC BY-SA 4.0
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