Improvements introduced in the construction of blocking equipment or locks applicable to doors in general, especially armored (Machine-translation by Google Translate, not legally binding)

摘要

Blocking lock for armored doors. Consists of a main lock and two or more complementary, satellites of that, and bolts of penetration. The action of the key is directly subjected by the pressure of its teeth on the set of schemes of programmed combinations and that by taking the required positions allow the displacement of the plate and the penetration bolts in the fence; when finishing their pomo and acting the key, the entire system is automatically blocked at the same time that the knob is loose through a clutch that unlock it. (Machine-translation by Google Translate, not legally binding)