Getting started rather late this time, but posting from
rec.crafts.metalworking as always.
2029) For measuring the angle between three landmarks, to allow
transfer to a map to determine your current location.
2030) Perhaps to grip a protective cap and unscrew it?
2031) clamp-on support for a candle, perhaps?
2032) Folding hook for hanging something after screwing it into
an overhead threaded hole?
2033) Perhaps a tool for harvesting bananas?
2034) A siren designed to be mechanically driven by a motor
coupling into which it plugs. (Probably on an old fire engine.)
Now to see what others have suggested.
2034: I think it's an old police motorcycle siren?
Seems I can remember some of them being driven off the rear tire... much
like those little bicycle light generators (really alternators) that
were popular in years past.
If I recall correctly, the siren assembly was spring loaded away from
the tire. The 'spindle' (?) was brought into contact via pedal when the
cop wanted it spun up.
Of course they only worked when the motorcycle was moving...
I'm sure the screen was necessary to keep crap out.
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