Just looked at key again.
The handle is marked "Van Dorn" which identifies
the old Van Dorn Iron Works on E79th St, in Cleveland, Ohio.
Van Dorn got out of the jail business and got into the
injection molding machine business.
2887, not seen one of these ever. My gut sense, it's a key to a police
call box. Perhaps to fire alarm box.
2888, don't know.
2892, possibly an old AM receiver, with the three vacuum tubes?
Christopher A. Young
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A new set has been posted:
It looks as if the knob on the left would lift it a small, precise
amount before letting it fall. Also, the lower "cutting" face is blunt.
Sometimes I've wanted to bend a piece of wire, such as a nail, sharply
at a precise spot. Flattening it a precise amount at the exact spot
would do the trick, although it might have to be heated after hammering
if hammering hardened the material.
Still cross-posting, so posting from Rec.crafts.metalworking as
2887) Looks like a key for a safe set in the floor.
You insert it in the lid, turn to unlock, and then use the
handle to lift it out.
2888) Looks like a tool for cutting round bar stock -- steel or
other strong metals.
The V-notches to either side hold the workpiece at the proper
The square headed screw adjusts the position of the bottom
chisel so it is just in contact with the workpiece (adjusts for
the diameter of the workpiece).
The upper chisel is allowed to rest on the top of the workpiece,
or is held a bit above it by the spring.
Then it is struck by a sledgehammer to cut the workpiece.
I was at first thinking that it was a blacksmith's tool, but if
so, I would expect to see signs of charring when the hot
workpiece was held in contact with the wooden V positioners.
Hmm ... turning the handle at the back would lift the
hammer/chisel clear and then allow it to drop -- but I don't
think that it is heavy enough for that to be practical.
2889) looks like early experimental cathode-ray tubes. Perhaps two
deflection pins coming out at right angles, and the electron gun
at the other angle.
2890) Looks like some sort of sliding knob -- but not clear what it
was a part of -- other than something relatively recent in terms
of what shows up at this site. :-) Injection molded rather
bright colored plastic.
2891) Looks like tools to be operate by two men -- sliding along a
surface -- perhaps to separate grain or something similar.
2892) An early vacuum-tube radio. External batteries for the
filaments (likely a single zinc-carbon cell) and a number of
cells for the higher plate voltages. There may be a small
three-cell zinc-carbon battery built inside which serves as a
bias voltage for the grids, and thus has very little current,
and lasts a very long time.
Toggle switch near the bottom left corner to switch the
filaments on and off. The high voltage probably does not need
to be switched with circuits as simple as these -- when the
filaments stop glowing, the current fro the high voltage stops.
The small knob at the bottom of the central object is the tuning
knob, and the frequency scale is visible at the opposite end.
A little more compact than the one which I used to have --
decades ago. And it was split into two parts -- the radio tuner
(Regenartive with adjustable coupling, and a separate box for
the audio amplifier. Probably five tubes between them.
The wires at the center back probably go to the batteries, and
the upper binding post terminals are for speaker or headphones
and for the antenna. (If I were in the other browser, so I
could get the "Larger image" to work, I would probably be able
to read what is printed on the knobs.
Now to post and then see what others have suggested.
As I also mention on the site, I'll be posting on Wednesday morning next week.
The answers for this set have been posted:
Thanks to all who participated!
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