Improvements introduced in the valvular step devices, for fluids. (Machine-translation by Google Translate, not legally binding)

摘要

Improvements introduced in the valvular passage devices, for fluids, characterized in that they comprise a direct passage for the opening or closing of the device, being necessary to carry out the closing of the valve by printing a turning movement to the corresponding steering wheel through a the screw will lower a piston, and at the same time its guide nut will press on the press-ring, making it in turn on the frictional rings thus achieving an automatic readjustment with its piston in its closed position. (Machine-translation by Google Translate, not legally binding)