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
ECONOMIZER FOR HOUSEHOLD APPLIANCES
There is a whole class of electronic devices that operate in standby mode, "waking up" only for a short time to perform their tasks, such as apartment bell, simple security system,...
“CLAMP” THE BINDING
This files most often prescribed magazines sutured, piercing a few hole and tie them with lace. Offer a more simple method, take two identical slats on the size of the log the drilled...
