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
GAZ-415
Pickup GAZ-4 in the Soviet Union enjoyed a well - deserved popularity - it acquired trading bases, small businesses and cooperatives. In 1936, at the Gorky automobile plant is the GAZ-A,...
THE CHANDELIER IS CONTROLLED BY THE DIODE
Chandelier, sconce or a floor lamp in every house. They often burn on several lamps. Do I need it? Not always. And here is the owner of such a lamp becomes involuntary "waster" of...
