Rohranschluss für konzentrische Röhre, der aus zwei koaxialen Rohrbogen besteht

摘要

This invention concerns a fitting for concentric tubes consisting of two coaxial elbows (1,2) where the inner elbow features a pair of opposing square pins (1a;2c) housed and centred in housings on the inner wall of the outer elbow which consists of a square platform fitted with two corner sides.