Tom blok Photo collection by Th.Schiöler River and wind powered Water-lifting powered by a water-wheel Photo 79
Water-lifting powered by a water-wheel
Gul streg
Photo 511 x 506 pixels, 43,6 K
 
High-lift device in Damascus, Syria
This is the upper right angle gear. On the left we have the ratchet and ratchet wheel, which prevent the whole machine from moving backwards.
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