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
A PLACE TO START
This house (Fig.1) with an area of 17 m2 consists of one room (see Fig.2) and may serve as a temporary shelter during the development of new suburban area. It is designed for four people...
Vehicle microclimate
Many motorists, especially owners of domestic cars, have experienced all the “joys” of winter operation of their beloved “steeds” firsthand. A particular “pleasure” is bringing the...
