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
SHOVEL-DOZER
It is not necessary to prevent the buildup of snow on the tracks, it is better to clean them immediately after a snowfall while the layer is still small, and Neoplatonist, fluffy, and...
THAN MARKING TREES?
To put digital markers on trees — work is necessary, but time consuming. We managed to make a simple device that allows you to quickly and accurately "print" a mark on the barrel....
