Archimedes Screw-- Built by Les Pattison

 
 

Browse Images

 
  <<Back || Next>>  
 

Bottom front

This pic is a view of Archimedes from the bottom front. The cylinder is mounted with 2h x 1h angle brackets on to a 4" circular plate that is itself mounted on a Ball Thrust Bearing separated by washers and spacers as necessary.
The gearing is designed to rotate the cylinder about once every five seconds and to this end I used one of my small DC motors that rotates about once a second on 12 volts. I picked up four of these motors from Bull Electrics some years ago and since the output shafts were not Meccano standard I got Mike Dennis to turn me up some small pulleys and shaft adapters to fit. Thanks Mike.
In the pic, a white ball, which has just finished rotating around the base, has been forced against the guide rails by a pink ball and is about to start its journey upward being caught by the starting slope of the Archimedes screw. The pink ball is resting on the slope of a 3h x 3h x 1h flanged plate set at an angle inside the cylinder. This flanged plate is better seen in the next pic.