Improvements in the construction of platform of left and vertical descent for varado and floating boats. (Machine-translation by Google Translate, not legally binding)

摘要

Improvements in the construction of vertical lifting and descending platforms for beached and launching of ships, characterized in that the platform is divided into independent floating pontoons, by means of the provision of main transverse beams, hollow in their entirety or their part, in form of sealed tanks said pontoons are susceptible to be linked by means of appropriate obstacles, and their independence allows them to be traced on the remaining platform; at the ends of the sealed tanks are some blocks or pulleys for hoisting and descending by means of a shot that is made from winches or hydraulic winches located in the springs next to each band, so that in the draft cables a reduction of efforts or loads due to the buoyancy of the platform, and a decrease in the efforts in the main transverse beams due to the thrust caused by its buoyancy. (Machine-translation by Google Translate, not legally binding)