Provision to avoid a removal of gas injurious to health from gas pipes when the consumer is not connected (Machine-translation by Google Translate, not legally binding)

摘要

Arrangement to avoid extraction of gas harmful to health from gas pipes when the consumer is not connected, composed of a pressure calender lock, with a working membrane, arranged between a gas pipe sealing member and a pipe joint pipe rigidly connected to it, whose movements are transmitted to the valve of the calender of pressure and which is under the action of a closing spring, characterized in that the transmission of movement from the membrane to the valve is effected by a lever system, whose lever ratio is suitably dimensioned in such a way that small deviations of the membrane produce large travels of the valves. (Machine-translation by Google Translate, not legally binding)