Thanks for posting. It's a good illustration of why factories are no longer steam powered. Many men lost limbs in those belts and pulleys, which are eliminated when there are electric motors inside the equipment.
Although not trains, this is a great illustration of the use of steam power. I hope the webmaster let's it stay posted.
Tied into the box factory, is this link to videos of steam lkocomotives that do not run on tracks. Click on the video at the lower right of the page:
http://www.phillipsbrothersmill.com/3/myblog.htm