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.
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TRACTOR
At school, for more than 40 years, engaged in the construction of various mechanisms to facilitate workplace and at home. (In the journal "Inventor and rationalizer" was placed in my...
SANI-MONALISA
The basis of design — fir or pine Board dimensions mm. 40Х300Х650 Even better to take a few boards with a thickness of 80 to 35 mm, pripojovat them to each other and glue put it on both...
