Protective apparatus for demarcation and defense of marine funds. (Machine-translation by Google Translate, not legally binding)

摘要

Protective device for the demarcation and defense of the seabed formed by blocks of any material provided with possibly smooth protruding hooks so as not to allow the horizontal displacement on the bottom of the sea of the trawls and with hooks with wider tips for the another side to hold the block as fixed as possible to the bottom of the sea. The upper hooks are arranged in a non-incurved manner so as not to allow horizontal movement of the net but allow the latter to recover after being hooked and once the boat is placed perpendicular to the block. This does not prevent, however, that the hooks may also be curved and with protruding parts so that the net as soon as it is hooked can not be removed. The most suitable blocks will preferably be triangular and longitudinal but this does not prevent them from being able to be constructed in any other way and with several elements. The longitudinal blocks can be better used for the demarcation lines while those of several elements will be better used for the intermediate spaces between the demarcation lines and the seashore. The blocks are provided for placement on the sea floor of a steel cable a hook and an element that is ejected as soon as the block is placed due to lack of gravity and at the same time by means of a spring previously compressed. (Machine-translation by Google Translate, not legally binding)