This simple device facilitates the use of any tube, helping to squeeze it evenly and gently. It consists of a base in a hole which is inserted the tube, and turning a key with slit for exciting a planar end of the tube. The base and key are made of wooden bars of appropriate dimensions. Their interaction is clear from the figure.
Recommend to read
THE MANY FACES OF “WIESEL”
The command of the Bundeswehr started the revival of its airborne forces in the late 1950s, However, as in the days of the Wehrmacht, look at VDV was still as highly mobile light...
THE LEGEND OF THE COMPANY “HONDA”
Japanese HONDA LEGEND edition 2005. Soichiro Honda was born in 1906 and lived a full 85 years, becoming sort of a legend — the same as Henry Ford in America, or Andre Citroen in France....
