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
“SECRETS” MOUSE
The prototype of the computer mouse — a two-dimensional analog of the manipulator, connected to a personal computer (PC or PC) via the serial port corresponding to the RS-232 standard,...
BRAZED ALUMINIUM
Modernizing the conventional electric soldering iron, can safely be taken for soldering aluminum products, And the quality of the weld and the process practically does not differ from...
