Posting from the usenet newsgroup rec.crafts.metalworking as
3127) Broken tool. The screw once went though a complete eye to hold
it to a workbench of some sort or other.
The dull knife edge to the right I think is for cutting wire by
placing the wire across it and striking it with a hammer.
(Probably someone used too heavy a hammer, which is why the
mounting eye is broken.
It looks as though a different metal was dovetailed in around
the knife-edge on the body, which includes the surface under the
knife-edge, so it might be that the edge was to be struck down
to perhaps indent something instead of cut it.
The tapered bottom may fit into something like the Hardy hole in
3128) This is obviously a HSS tool bit from a lathe.
Each end is ground to serve a particular purpose.
The right-hand end is designed to turn the left-hand side of a
I think that the left-hand end is ground to make a shallow cut
and produce a nicer finish -- or perhaps to produce a rounded
edge at the outer diameter. Lots of good views, but holding it
in my hands -- and perhaps actually mounting it in a lathe and
3129) I wish that the partial end view had been included in the larger
Lacking that kind of detail, I think that it is a form of vacuum
pick-up tool, given what appears to be an O-ring near the OD of
the flat end. There would be a piston in the larger part of the
other end which would be drawn back by the movable part of the
handle. Perhaps for picking up something like silicon wafers
from intergrated circuit processing.
3130) Assuming that this is metal:
This looks like a tool for cutting the surface off the side of
an electrical cable. It is curved and placed in the groove,
and slid along the length of the curve, slicing off an outer
layer of the jacket.
However -- it might be wood (given what appears to be some grain
on it). If so -- a particularly hard wood -- maybe ebony,
maybe lignum vitae. But I don't know what the function would be
in that case.
Perhaps it could be for cutting the end open on a cigar?
3131) At first glance, it resembles a simple wheel balancing device
except that it is too small for even wheelbarrow tires which
don't *need* balancing, because they don't turn fast enough to
be a problem.
So -- I would say that it is for balancing pulleys and gears.
The device to be balanced is set on the step which matches the
diameter of the hole, the low side is noted (and likely marked
with a felt-tip marker), and a shallow hole is drilled to
lighten that side, and it is returned to the fixture to test
again -- perhaps resulting in the original hole being drilled a
little deeper, or perhaps another hole added somewhere else
along the circumference.
3132) A heat gun or lamp. It holds a conical screw-in base (like
a light bulb, but with an exposed nichrome heating element in a
spiral groove on the outside.
Now to post and then see what others have suggested.
The answers have been posted, except for the wooden item, along with two videos,
you've probably already seen the glass tapper one, the other shows how the blade
balance is used:
for a fellow. he was sure the motor cover bolt (which
kept coming loose) was the problem why his machine
vibrated. I balanced the blade by hanging it horizontal
with a nail through the center of the blade. Wow, it was
really off balance. One end dropped FAST. Grind the droppy
end, and try again. When I finished, he was very impressed
how smoothly the mower ran, compared to off balance. Nail
driven mostly in the wall makes a good balancer.
Thank you for the time you put into this. Lot of fun.
When I was looking for the balancer video I saw a couple of them that were
similar to this, one guy just stuck a screwdriver into a vise instead of using a
nail. Seemed to work just as well as my bench top balancer.
Clamp a knife in your vise with the sharp edge up. Set the mower blade
on the knife edge. An old table knife works good. I have a couple
of balances like what you posted in this weeks set. The knife in the
vice works as good or better...
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