[LateStarter]

Copy this!
For your smoker model locomotives.

Tired of that greasy residue left on your layout by smoker locomotives?
Sick of that funny smell?
Concerned for your pet's safety?
Freelance or bash this handy device!

 

[Fire21]

How do they get it to travel down the track with the engine? :laugh:

Note how this system below is semi-effective. (get it?...Semi?)

 

[mesenteria]

It looks to be a coal burner, so I'm thinkin' the aim is to clean the netting with a blast of water.