| 摘要 |
A connecting device for tubes with an essentially rectangular cross-section has a parallelepipedic central body 1. At least two arms 2 extend outwards from respective sides of the central body and are non- releasably connectible, by frictional engagement, with respective tubular pieces. These arms 2 are formed integrally with the central body 1 and are located in a common plane. A further, separate arm 7 of the same cross- sectional shape as the first-mentioned arms 2 is insertable into the end of a tubular piece for a non- releasable frictional engagement with the latter, whereupon said tubular piece may be releasably connected to the central body, perpendicular to the said plane. <IMAGE> |
