An elevating crane for especially heavy lifting. (Machine-translation by Google Translate, not legally binding)

摘要

An especially heavy lifting crane, comprising a mainly vertical crane mast, bars for supporting the crane mast, a crane arm rotating around a vertical axis as well as around a horizontal axis and fixing means for fixing the position of the mast of the crane and its support rods, characterized in that said main parts of the crane are demountably fixed to each other and said fixing means and because the weight of each of said units is less than 10 percent of the maximum lifting capacity of the crane. (Machine-translation by Google Translate, not legally binding)