What coil do not occur now in our everyday life and tape, and fishing, typewriter and film projector and all have one awkward feature: they are wound — tends to unwind. For all of them a simple and reliable latch will serve kolejno of underwear elastic: soft and wide, it does not give content to unwind the coil.
Recommend to read
MAGNETIC WAND
In the repair of equipment there are times when a small detail falls into such a place, where to get it very difficult. And if a piece fell inside some mechanism? Then the continued...
THE PUMP HOUSE IN D-6
Widespread in everyday life got electric pumps "Kama", "Trickle" and others. They are quite efficient, reliable and unpretentious in operation, but are used as stationary units only...
