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
ARTILLERY TANK FOR THE RED ARMY
In July 1929 the revolutionary military Council of the USSR adopted the "System of tank-, tractor-, car-, breeveertien the red army" laid for the coming years program to create armored...
WINGED UNIVERSAL SU-25TM
The interaction between aviation and ground forces—one of the conditions for the successful conduct of modern warfare. The form of this interaction is determined by the accepted military...
