Mechanical Principles (1930) by Ralph Steiner [4min selection]

4min selection of a larger work by Ralph Steiner. It is beautiful illustration of basic mechanical principles from 1930's.



Favorite movements: @ 1:16 - counter mechanism @ 2:55 - normal gears, but cut to engage on diagonals @ 3:37 - SQUARE GEARS! @ 3:41 - variable speed transfer @ 3:46 - rotary to linear action with a 4 tooth cog