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
CAR AMO F-15
CAR AMO F-15. Scale model 1:25. Car AMO-f 15 (1924-1931) was the development of the Italian truck FIAT-151ter. The first ten cars were collected from 1 to 6 November 1924 and was...
The reasons for the failure of the Ipad
Many people when buying a new and advanced gadget I hope for a long life, but in reality it is not so. Due to the fact that the tablets are technically complex device that causes of...
