The correction tape uses gears as shown.

The electronic dictionary uses linkages to open and close.

The alarm clock uses gears to work.

The following above shows a curtain. I figured that it might be a problem as the curtain are high from the ground. So it may become a problem for the young, besides, climbing on things are not very safe. I think levers could do to help this. 

Someone would pull 1 down, therefore, 2 will move upwards. therefore "drawing the curtains.