What is it? Set 393

I accidentally sent my previous post before I wanted to, I need some help this week with number 2273 which someone sent in after finding it in their grandfather's shed.

Rob

2269. Aldis lamp. Here are some but they don't quite match that one.

2270 Looks like a random access disc drive [RAMAC] being loaded on an airplane.

2272 Looks like an old Geiger [Muller] radiation counter/indicator.

2273 Guess... Airport runway or taxiway marker lantern.

2269 looks like a hand-held signal light for sending morse code between ships. If there's no visible emission it would have the infrared filter in place. 2270 might be a cesium-beam atomic clock, probably being loaded as part of the Hafele-Keating experiment.

2269 I think is a 1960s or 70s era police radar gun. 2270 Magnetic drum computer (c. 1960) 2272 Geiger counter? 2273 looks like it could be used as a fumigator -- bottom part appears to have a fuel reservoir and a wick.

2270- 305 RAMAC.

2273 is a roadwork's marker lamp

2269- aircraft control tower light gun to signal planes with no electrical system or that are NORDO (NO RaDiO due to failure)

Dave

2273 -- alternate form of a Davy safety lamp -- possibly for mills to prevent dust explosions rather than for use in mines -- The screen acts as a flame arrester; air (and any firedamp/ dust present) can pass through the mesh freely enough to support combustion, but the holes are too fine to allow a flame to propagate through them and ignite any firedamp outside the mesh

Northe

2274 looks like it might be a form of spider coupling used to transmit torque from one shaft to another shaft which may be neither collinear or parallel. (Sort of like a universal joint but not as rigid.)

The first two are correct, not sure about the third.

3 looks like a high tech version of the old road side smudge pot lamps.

Might acutallu be airport equipment.

Nope. It's not a piece of machinery, it would have been used in the home.

Posting from Rec.crafts.metalworking as always.

2269) Three possibilities come to mind for this one: 1) Hand held police speed radar. 2) Hand held parabolic distance (surveillance) microphone 3) Part of a light signaling device -- perhaps used between ships in a military engagement. The trigger switch to send blips of light, and the sight on the top to make sure that it is aimed at the receiving end, because (by design) it has a very narrow beam angle.

2270) Prefab (and pre-loaded) kitchen for serving food and coffee during a flight. A lot quicker to load and unload than to refill it in place on the plane -- the kitchen is cleaned and refilled at the terminal, and ready to swap in when the plane touches down.

2271) I don't know -- but I *really* don't want to sit on it. :-)

It might be some form of incinerator if those points are punched and folded out from the sheet metal instead of being riveted in place -- that would give ventilation -- but why leave those points threatening everyone near it?

2272) A radiation survey Geiger counter. Not the ones which were packed in the Civil Defense bomb shelters (those were painted a bright yellow), but also not one for checking ore and such, since it does not have a hand held probe (Geiger-Müller tube).

(That second letter in the part after the hyphen should be a 'u' with an umlaut above it.)

Does that meter scale say mR/hr (milli-Röentgens per hour?)

(And the second letter after the hyphen in this should be an 'o' with an umlaut above it.) All just in case the special characters don't show up properly on your newsreader.

I've got one of each type, FWIW, but not one which looks exactly like this one.

2273) Is this perhaps a "smudge pot" -- a dirty-burning flame to coat an orchard with soot as part of a protection against freezing.

2274) Now that is a strange beastie. :-)

Sort of looks like a minimum strength driveshaft which sort of runs loose between two things -- with nubs which could perhaps be used to make it act as a pair of universal joints without the parallel spikes.

Now to post and then check what others have suggested.

Enjoy, DoN.

Where do they live? A place which has orchards? If so, that increases the chance that it was a smudge pot as I just suggested in what I posted.

I've never seen one, but this looks like something which would do the job.

Enjoy, DoN.

Hmm ... some form of bobbin for a weaving machine or a sewing machine perhaps?

Enjoy, DoN.

Yes, the points are punched and folded out from sheet metal, this would have been used on a farm.

2271 looks like a simplified version of this: 2272 looks like a geiger counter

2270 is an IBM computer (you can see the logo on top); the first hard disk drive computer, in fact. It's a 305 RAMAC HDD

2269 is a portable signal light, similar to this one

--riverman

Its for drying hay?

-riverman