Tom blok Photo collection by Th.Schiöler Spiral scoops, screws and the chain pump The Archimedean screw Photo 150
The Archimedean screw
Gul streg
Photo 511 x 506 pixels, 43,6 K
 
The internal screw for the Archimedean screw
The screw is made like a spiral staircase. In total, it consists of 75 steps. The staircase and housing make an undivided whole, unlike the kitchen mincer.
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