What is it? Set 263

This week's set has been posted:
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Rob
Reply to
Rob H.
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1493 is a heavy duty cabinet hinge ,usually found on industrial electrical cabinets
Reply to
Kevin(Bluey)
1489 Mapmaking device to draw contour lines from stereo-pair aerial photographs. The cartographer mounts a pair of photographs on the flat surfaces, aligns them, then looks in to see a stereo view. He can then move the pen along what seems to be a constant height.
1492 A couple of hypodermic syringe plungers?
1493 Guess... If there were mounting holes, the pieces would form a hinge (left piece down) so I'll guess they are used to form a temporary hinge with the pieces clamped on to the parts of a work in progress in a machine shop.
1294 From the size and scale (the handle is between 1 and 2 inches long) I'd guess this is a model of a heating furnace. Patent model?
Reply to
Alexander Thesoso
The only one I recognize is the coal furnace.
--riverman
Reply to
humunculus
It's a salesman's model.
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-riverman
Reply to
humunculus
I presume you're talking about #1494?
#1490 also looks as though it's designed to heat something and put out hot air. I would have guessed shoes/boots that needed drying were to be hung from the hook on the end, but there's only room to hang one thing and, at nine inches tall, this device is too small for that.
Reply to
Ted Schuerzinger
1493 weld on hinge.
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Third item down. I've used them in several sizes.
Reply to
Bill Marrs
Yep, I have some old syringes that have glass plungers, In fact there are no seals on the plungers, they fit the glass barrel snugly enough that they don't leak.
basilisk
Reply to
basilisk
rcm
#1494 is a model (or salesman's sample as previously suggested), and definitely of a coal furnace. I've fed such a beast. Below the fuel door is a covered water reservoir for generating some humidity, I believe.
The ring going around the "floor" of the model is where the sheetmetal jacket would fasten, joining to the sides of the cast iron faceplate/controls panel. The diameter of the beast was over 6 feet, but not more than 8 feet, to the best of my recollection.
The sheetmetal jacket was cylindrical, but had a tapered section at the top, for about 25% of the overall height. The round heat distribution ducts, with joints neatly wrapped with asbestos tape, were cut into the tapered "crown" section to distribute heat to various remote locations in the structure.
On the fuel door, and below the fuel door, there were a couple of small damper doors that could be operated remotely, by a chain control upstairs in the structure.
The little crank laying on the right side of the display model was for rocking/rotating the large grate bars to let the clinkers fall thru to the bottom, where they were shoveled out and put into buckets to be carried outdoors. The vertical handle was a sort of shaker, maybe intended to break up the bed of hot coals, or to assist in cleaning out the ashes.
I don't clearly recall the cold air return path, but there were the commonly seen tinned joist spaces and the wide cold air registers in the first story floors.
The combustion gasses and smoke went out thru one of the big passageways in that big donut-looking heat exchanger on top (to a damper before the chimney connection, and the other protrusion was a cleanout door.
Everything except the sheetmetal jacket, crown and ducts was cast iron, and all of the cast parts were heat exchanging surfaces.
Reply to
Wild_Bill
Thanks for the link, a couple people had mentioned that it was a hinge but the link really closes the book on this one.
Rob
Reply to
Rob H.
Looks like this is correct, I've found a few on the web that appear very similar.
Thanks, Rob
Reply to
Rob H.
The link below has a photo of the grate as seen through the open door at the bottom of the furnace, the handle attaches to the part at the front left, your description of this mechanism sounds good to me.
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The handle can be seen in the bottom right of the third photo:
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Rob
Reply to
Rob H.
1489: Some grad student's way of finally seeing those darned "hidden eye" images.
1490: Ye Olde Fyre Starter 1491: Difficult to use rubber stamp 1492: In Texas, laboratory glassware is illegal to possess without a license because it can be used for making drugs. Perhaps England has a similar rule, and these are new drug-proof glassware.
1493: TP holder 1494: Portable heater/humidifier.
Reply to
Matthew Russotto
"Rob H." wrote in news: snipped-for-privacy@news3.newsguy.com:
1490 looks like some elaborate mouse trap. Not sure why they didn't just give the mouse an easy way up instead of the perforated sheet metal though...
Larry
Reply to
Larry
My guesses:
1489 - Machine for generating perspective drawings from isometric drawings/photos, or some similar purpose. Looking in the two eyepieces and moving the pencil around would, I assume, line up spots on documents on the two platforms, and that would indicate the correct spot to mark the feature on the "output" drawing.
1490 - Maybe a moustrap, the little critter climbing up the perforated tube and then being unable to escape from the cup? But it seems a bit small for that to work well.
1491 - Well, it clamps onto a thin surface or similar, and then, ummm...ah...erm...well, I guess it's so obvious what you do that I needn't bother explaining it.
1492 - Containers for reagents nos. 1 and 11.
1493 - Paperweight and runaway pencil catcher for the drawing board.
1494 - Cheating and googling revealed that this is a sales model of a Williamson Model A furnace, which I presume was a coal-fired domestic hot air furnace. In the basement of my house is a Williamson Oilsaver furnace of slightly more recent vintage (but still forty or so years old) that, at the last cleaning/testing, was found to be 81.7% efficient.
Now to see other guesses.
Reply to
Andrew Erickson
The grate is called a 'shaker'. We grew up with coal stoves when I was a kid.
--riverman
Reply to
humunculus
Posting from rec.crafts.metalworking as always.
1489) An optical tool for comparing two images or objects, or for viewing in 3D.
I would think that it would be used with two ariel photographs, taken some precise distance apart to provide the separation to make 3D distance judging possible
I don't see enough detail, but I suspect that the two pans can be moved relative to each other, as well as rotated to align some reference point in the two images. At that point, you can visually judge height differences of anything showing up in both photos -- and if you know the distance between the two photos, can probably also measure the relative height of the features.
The pen holder allows you to mark things found onto another piece of paper.
Hmm ... perhaps the depth perception would allow you to use it to trace height contours onto the third piece of paper.
Probably fairly old, as I believe that all of this is done by computer these days.
1490) A device to trap and drown mice. The lower container holds water.
The bait is held just at the edge of the platform, or perhaps mounted on the platform, with a counterweight on the exterior arm.
The mouse climbs up the perforated tunnel, out onto the platform, and at a certain point the platform tilts dumping the mouse into the water. There is nothing for the mouse to grip, so it swims until exhausted and then drowns.
Was this commercial, or a home-built one?
1491) Not really sure. Perhaps to plane a groove in a wooden surface?
1492) Plungers (pistons) from different sizes of hypodermic syringes. The OD of the cylinders is ground to a precise fit inside the matching syringe body, which contains the markings for the amount of fluid injected or otherwise transferred. (I use them for putting cutting fluids at the bottom of the groove made when parting off metal in a lathe. It is difficult to squirt it so that it runs down into the groove where it is needed, but a dulled needle will put it right where you need it.
1493) Looks like a hinge intended to be welded to two parts of a project so the door can be lowered into place. (Of course, you need two of them at least for most things.
1494) Perhaps part of a coal fired hot air furnace? The pulley at the bottom probably keeps the coals and ashes stirred as well as perhaps powering something else.
Now to see what others have said.
Enjoy, DoN.
Reply to
DoN. Nichols
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Which is very good when you are measuring out aggressive organic solvents, which would tend to attack both the rubber seal, and (perhaps also) the plastic body.
Of course, they were reusable in that period, and glass is easier to sterilize than rubber.
Enjoy, DoN.
Reply to
DoN. Nichols
I tihnk you have it about right, but its probably for something bigger than a mouse or rat. But I think the bait is hung off of the wire, and probably there is some sort of cover that seals the bait in. The prey goes in the entrance at the bottom and climbs the tunnel, smelling the bait but unable to get at it, and at the top it squeezes out on top of the bucket, and the top tilts and it falls it. It might be a live trap rather than a drowning trap. The prey has to be quite large; a mouse or rat could easily get through the holes in the perforated tunnel....maybe its for squirrels or muskrats?
--riverman
Reply to
humunculus
That makes sense, the ones that I have come out of a lab that was shut down, they did environmental work and handled a lot of acids and solvents.
I think they were directly coupled to reaction chambers and used to introduce measured amounts of chemicals as needed.
Some of the glass work that came from this lab is very complex, I'm not a chemist, so I can only guess at what some of it was used for.
Anybody need a zero air generator?
basilisk
Reply to
basilisk

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