Perfect mechanism, for the delimitation of a single positive sense of turn. (Machine-translation by Google Translate, not legally binding)

摘要

Improved mechanism, for the delimitation of a single possible direction of rotation, characterized in that the two fixed and mobile parts, interrelated by the mechanism, define respective cylindrical conformations of identical external diameter that are in contact by their corresponding bases, both of which are girded by a same coil spring so that when trying to turn the mobile part in the direction of the turns of the spring, from top to bottom, it tends to increase its inner diameter freely allowing this rotation while trying in the opposite direction tends to closing their turns, tightening even more firmly said conformations, which results in a certain lifting of the moving part to a stop position in which it is locked radially. (Machine-translation by Google Translate, not legally binding)