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
TO EMERGE IN A GIVEN SQUARE!
Model submarine class EATING has always been one of the most interesting, especially for juniors. Such "free-floating" model require from the constructor of ship models awareness of the...
SORTED THEMSELVES
Every gardener knows that potatoes are not the same size. Therefore, the need for bulkheads potatoes obvious. After sorting it has a higher shelf life and high commodity properties:...
