Fixer for articulated elements between yes. (Machine-translation by Google Translate, not legally binding)

摘要

Locking element for elements articulated to each other, essentially characterized by being constituted by a plate fixed to one of the elements in the area close to the articulation, and comprising a slot in which a projection of the end area of the other element plays, with the particularity that said plate can be manually separated from its plane and thereby allow the withdrawal of the said protrusion from the slot in which it plays, subsequently returning said plate to its normal position by elasticity. (Machine-translation by Google Translate, not legally binding)