Posting from rec.crafts.metalworking as always:
2725) Strange beastie. Assuming that the bottom is sealed (which
I think is the case from the first photo), I would think that it
was intended to be sealed and put some kind of sample though a
tubular hole into a source of heat or cold for processing the
sample. The springs keep it from falling all the way in.
2726) *This* one I know. It is intended to divide a space equally
for rivets for sheet metal (aluminum, titanium) attaching in
You mark the position for the first and last rivet, and then
expand it so the end arms (all arms have a single hole at the
free end) are over the first and last holes, and mark the rest
through the holes in the other arms. If you need fewer rivets
than the full count (twenty in this example), you can use one
end and an inner arm over the end holes.
2727) It sort of looks like a crimper for terminals, except that the
business end is not shown in sufficient detail. (The detail
which I want is hidden by the tape measure in the last photo).
It could be for crimping joins of sheet metal instead. Or it
could be for straightening bent pins on integrated circuit
I am puzzled by the lever, however. I would expect it to be for
closing the jaws more tightly -- but I think that as it sits, it
is for opening them instead. Perhaps it is for separating two
sides of an opening of some sort?
2728) Sort of looks like a tool for manipulating a ham or a roast
beef during serving/slicing. The outer jaws close when the
handles are pressed together.
2729) Intersting. It sort of looks like a beater for a bodhran
(pronounced bo-ran) an Irish frame drum), but it looks rather
ornate, and to have been made of ivory. Perhaps for a similar
drum in some African culture, instead?
With a bodhran, it is beat alternately with both ends rather
rapidly by vibrating the beater back and forth in the hand. But
the beater is normally wood in all that I have seen.
2730) Rack for securing twenty rifles with a single lock. Likely
for military use. Looks as though it closes on the barrel, with
the butt at the bottom. and the top has a separate locking
mechanism -- perhaps to grip by the sight or the bayonet mount.
I see that the slots are numbered, so each soldier can recover
the weapon which was issued to him/her specifically.
Now to post and then see what others have suggested.
2725 Ok, so it is a depth sounding gauge. Now, how does it work?
Let me speculate that there is a check valve that lets the water in
until it compresses the air in the body to equal the water pressure.
The unseen scale can then be calibrated to give a rough indication of
pressure-depth. I wonder about compensation for temperature and
salinity. I also wonder about why this is more accurate than measuring
On 11/30/2012 5:17 PM, Rob H. wrote:
Makes sense considering the boat is most likely
The rope would be in a large arc as it is dragged
the water. So it's useless to measure the rope..
the boat is stopped currents at the bottom would
the arc. I've seen this ice fishing with a gabbu
for lake trout
on Keweenaw Bay in Mich UP
and sometimes the bottom current would require a
barracuda just to get to the bottom. ;>)}
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