Improvements in the excavation devices for mine machines, quarries and shipyards (Machine-translation by Google Translate, not legally binding)

摘要

Improvements in the excavation devices for mine, quarry and shipyard machines, comprising a rotating plate provided with picks and arranged so as to form an angle with the cutting front, characterized in that the peaks are constituted by rotating risers that, under the action of the centrifugal force, are intended to injure the material and hide instantaneously inside a given perimeter of the plate in case said material offers too strong a resistance. (Machine-translation by Google Translate, not legally binding)