We are accustomed to the fact that the curtains should be spread out. For this there are special rods or strings, fastened above the window. Some of them are mechanized: it is necessary to pull the cord and the curtain goes to the side. It is convenient to use the same device and for lifting the curtains. For this to the back of each curtain must be attached a metal ring, and cornice hooks. Then through each row of rings missing the cord and fix it on the bottom. The free end passes through the hooks and serves to lift the curtains.
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BUTTON-HAT
If you want to attach the fabric to the wood (for example in the repair of old furniture) and upholstery nails with big heads, no, you can use a normal kizlarskoye button. 
Automatic incubator
A compact incubator in which you can hatch turkeys and chickens, ducks and geese, operates from an AC power supply.
The design automatically maintains the required temperature: chicken...
