In article ,
R.H. wrote:
Just posted another set:

http://puzzlephotos.blogspot.com/

O.K. from rec.crafts.metalworking again:

345) Not fair for me to guess, since I submitted the photos.

346) Used with an appropriate sized wood-cutting drill bit to cut
square holes. The drill bit cuts out wood at the center
(ejecting it through the slots up higher), and the hollow chisel
bends wood from around the drill hole into the path of the drill
bit, resulting in a square hole. (Usually used for mortising in
things like a door lockset.

347) Used for adjusting the height of something -- such as perhaps
the rear of a cannon barrel to adjust the range.

348) The business end of a Jacobs style chuck key.

349) An electric motor. The coil is suspended in the two loops
at the ends of the battery, and current through the wires
produces a magnetic field which interacts with th field from the
permanent magnet(s) on the side of the battery.

It looks as though the wires coming off from the coil are just a
bit off center, so as the coil twists, it will probably lift
clear of contact at at least one end, allowing it to flip around
and repeat the cycle when it next makes contact (probably near
the end of a revolution.)

Even if the wires were perfectly centered, if the enamel were
scraped off of only one side of the wire, it would work pretty
much the same, with the enamel acting to interrupt the current.

350) "Slingshot" handle (not truly a slingshot, but the only term I
knew for this as a kid is most certainly quite politically
incorrect, so I won't mention it here. :-)

It looks as though it is designed for the rubber bands (perhaps
surgical rubber tubing) to fit through the two holes near the
ends of the fork.

Now to see what others have figured out.

Enjoy,
DoN.
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