Automatic Bombing Computer
attatchment for the Norden bombsight, known to the Army Air Forces as
the Automatic Bombing Computer and to the Navy as Low Altitude Bombing
image is third from bottom of page
Posting from rec.crafts.metalworking as always.
2455) Too much image data lost to jpeg compression for me to
have a clear enough view to be sure, and a view from each end
would help, too. But I'm going to assume that the pivot is also
a means for feeding something in -- a gas fuel, or a very high
frequency RF signal. The handle allows it to be swiveled to
point at something. If a fuel gas, to play the flame across
that something. If RF (microwave region) it could serve to
point an antenna at a similarly equipped station, or to survey
where a signal is coming from.
A view from the handle end would show whether there was an
aperture and fitting for feeding something in there, and the
other end would show whether there was an opening for something
to exit or enter. I rather doubt that it is a fuel torch,
because I see no way to separately feed air or oxygen in to get a
And less jpeg compression would allow me to see whether the
center of the pivot mounting had an RF connector in it, or
simply threads for mounting it to something.
2456) Not sure whether this is for cooking or for solvent cleaning
though I lean towards for solvent cleaning of something like
watch parts. The parts, after dipping (and likely ultrasonic
cleaning) could be hung from the spring at the top to drip back
into the cleaning pot.
2457) Looks like one of those nasty strips that at least the Brits
thrown across a road to stop a runaway car. What is shown is
only a small part of the chain which could be formed, since it
is obvious that similar groupings could be coupled to what is
shown to make it long enough to reach across any road at need.
2458) No clue at all. Is the end of the hook sharpened, or dull,
which cold determine whether it is to be used as a
chisel/scraper or as a lever to pry something out/apart.
2459) This looks like a tool to scribe a line at a fixed distance
below the center of the end of some workpiece -- likely
cylindrical or at worst, square.
The right angle point at the end of the longest piece is pushed
into the center of the end of the workpiece, and the rest is
pivoted around that.
The diameter of the workpiece can be somewhat accommodated by
the three pivot points for the scribing arm, and by letting it
trail behind the upper arm accomodation for smaller changes in
diameter may be made.
2460) Is this flat on the bottom so it could be placed on a chart?
Is it secured to the wood by the bright screw visible above and
a little to the left of the dial?
It looks like some form of navigation calculating instrument,
with provisions for cross winds or currents (at about any
angle), variable drag, and many other features.
Whether for aircraft or marine use, I don't know.
In 1978 me and a mate (both 18 years old at the time) went on holiday from
England on our motorbikes to tour France. For both of us it was our first
holiday away from parents and a big adventure. We took an evening ferry from
Portsmouth to Cherbourg, drove for an hour or so in the dark, found a field
to put the tent up in overnight and set off properly next morning. Shortly
afterwards at a tricky junction my idiot friend who was more a car driver
than a full time competent biker failed to stop in time, lost it and crashed
into the back of me, wrecking his front forks which bent like bananas when
his front wheel hit my rear one but fortunately doing no damage to my bike
or me. A French woman in the house he crashed outside heard it happen and
ran out to help us. My friend had injured his hand a bit when he fell off,
his bike was unrideable and they put us up over the weekend while he got
We set off again, both of us now just on my bike on the Monday, toured
France for the remaining 10 days and collected his poorly bike in a van when
we got back. At dinner that night they showed us a comedy drawing of what
was labelled a Porte Chien Belge (Belgian dog carrier). The French look on
the Belgians a bit like the English look on the Irish. Their hard of
So that's at least how old that joke is. Happy memories though.