While looking for something else but not finding it (specifically, a "new steam terminology" spoof that gives the new, high-tech sounding names to locomotive parts, such as calling a whistle an "audible grade crossing warning device"), I came across this page, with illustrated brochures of certain steam locomotive appliances:

http://www.martynbane.co.uk/modernsteam/tech/mstech.htm

The home page from which this comes:

http://www.martynbane.co.uk/modernsteam ... mlocos.htm

Have fun.

Martyn occasionally posts here.

That part on Adhesion Aids in the first link is really interesting.