Descriptive Names

I’ve come to end of my scanning work with a drawer full of drawings marked “various”.  I was told to name the drawings based on there content.  Easy enough for drawings like demolition plans, planting plans, process outlines and primitive dies, but what about the drawing of smoke stacks, exhaust towers, and cooling pipes coming out of the top of a reactor that I found after having named stuff for 10 hours?  “Tall things”.  I pray nightly that no one ever needs to find the a drawing for that vertical heating column.