[TheForge] Power hammer Vs air hammer

[Grover Richardson]

	Thing to remember is that a power hammer, when it is running, is
obvious and dangerous to the casual observer.  

	An air hammer, when running, is a rat trap waiting to be tripped.
At a meeting last Saturday, I announced the danger of an air hammer.  In
that it is armed and ready to go, and the air compressor is 2 buildings
away.  There is no obvious sign that an air hammer is ready to work, other
than the fact that the air lever is moved 90 degrees, or the wood block is
underneath the foot leaver.  Non-blacksmiths would miss such signs.

	Not long after, someone (I leave the name out because I almost did
the same thing years ago) stepped on the operating lever.  It moved.
Immediately the wood block was re-placed underneath the foot leaver.

	Air hammers are good, but can be a silent killer when visitors are
in the shop.