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
SMART FORTWO
In 1989, the company The Swatch Group Ltd. (Switzerland) engaged in the design compact city car of the original design, and in 1993, the company Mercedes-Benz has developed a feasibility...
MODEL-A COPY OF CHAMPION
(The end. Start at # 5 and 11 ’02) The carrier rocket "Soyuz-2" spacecraft "Soyuz TM-12". The article "Soyuz" space survivor" ("modelist-Konstruktor" No. 5'02) it was told about...
