V8Druid
do it as well as you can,but learn to do it better
as said - looks to be an ultra low geared reduction using a triple cam 'ratchet' system - the top cover is off it in the video and would be totally enclosed, immersed in an oil bath in use ... just a spectacular piece of engineering, particularly the triple cam/ratchet drive - hell of a size too - some big machine tools needed to machine thatWhat does it do? Looks like some type of crusher but I can’t imagine it would last long once it was introduced to grit!