This collection shows 'items' that make a shay steam engine go. Not everything but somethings. More to come.
What makes steam? Burning coal and it doesn't get into the firebox by itself. Back breaking shoveling by the fireman does.
There are a lot of wrist turning on any machinery and a steam engine is no different. These hang off of the cab for easy easy acees by the crew.
These knuckle couplers are what keep the whole train together. Massive iron pieces.