Improvements in the construction of the cranes intended for the loading and unloading of land services or services (Machine-translation by Google Translate, not legally binding)

摘要

Improvements in the construction of cranes intended for loading and unloading of ships or terrestrial services, characterized by the fact that every two or more cranes are superimposed and rotate in the same vertical axis, being able to rotate the 360º without any interference, serving as axis a central body truncated or cylindrical, fixed to the cover or to the top of the carriage of translation, whose interior space is used for the installation of the service of ventilation of warehouses, so that the circular movement of these cranes allows to work on their pens without any interference and concentrate the four or more pens corresponding to two discharge towers in the service of the central hatch in the case of ships with three hatches, the two pens corresponding to a discharge tower being able to be double-locked and, synchronizing their turning movements, raise between them a weight four times higher than the corresponding normal load, replacing the Real or heavy weight props. (Machine-translation by Google Translate, not legally binding)