A perfected passing key or faucet. (Machine-translation by Google Translate, not legally binding)

摘要

An improved faucet or stopcock, characterized in that it is constituted by a box piece comprising three conduits arranged in a t-shape of which the central one is threaded and in a lower area takes a frusto-conical shape that extends between internal ends of the lateral conductors of the passage of the fluid creating a cavity in which these end and ending with the base of smaller diameter in lower position and centered between them and by a male part comprising a core that is screwed to the thread of the central conduit of the box piece, to which it is fixed, and which has a threaded axial through hole to which the spindle of the key-hole is screwed, so that it can be moved to its closing and opening positions of the tap, said spindle having its lower end a sealing piece of slightly elastic material having a truncated cone shape equal to that of the concavity of the box part and c this concavity is axially movable with the spindle so that when the tap is closed, the internal openings of the lateral conduits are lodged tightly in such sealed concavity and the opening of the tap moves gradually leaving the passage through the the lateral passages pass. (Machine-translation by Google Translate, not legally binding)