It is often necessary to pour a certain amount of fluid in a pan or bucket. Not to do it “by eye”, rather on the inner surface of dishes used to put a measuring scale, calibrated in litres. Depending on the material of the vessel, the risks can be incised or applied the paint counter.
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ROULETTE WITH A SPOUT
Conventional roulette is inconvenient to measure in the crevices, folds, blind grooves. I have attached the model to the usual roulette kind of spout — G-shaped bracket of sheet metal;...
SECRETARY OF THE STUDENT
Many original equipment for studying and doing something they demonstrated this year in Moscow at the International exhibition "Technical means in educational process". Special interest...
