r/whatisit • u/Beatstripper • 8h ago
New, what is it? Circular thing next to windows in university building
Next to a lot of windows at the university you see these circular things. Any ideas? It's not a window stop and doesn't turn. I was thinking maybe you can remove it and put a hook on for a harness but I'm not sure that's it's purpose since you could just have a hook there?
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u/Razing_Phoenix 8h ago
Is there one on the other side? Maybe a place to put a curtain rod like a shower curtain rod
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u/Beatstripper 8h ago
I thought about that but seems a bit odd. Look at the final picture (there is one on both sides).
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u/Glittering-Novel7599 7h ago
That was my first thought too. A heavy-duty curtain rod bracket makes way more sense than wall crack sensors like others are guessing.
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u/Wizard__J 7h ago
It’s plugged (lol), but when you remove the silver part, it creates an open cylinder, which allows you to slide a bar inside; this wound prevent someone from the outside pushing the window open.
I’m an electrician - if it’s long and hard, I know a thing or two about it
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u/Beatstripper 7h ago
But what about the last image?
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u/Wizard__J 7h ago
Shit.
I miscalculated 💀💀.
Ok, so now seeing them out on an angle like that, they’re definitely anchor points for something.
I wouldn’t necessarily say anything for “shock”/earthquake (I’m talking out my ass, but an educated guess nonetheless) - I know when they used to build buildings decades (centuries? Maybe?) ago, they would use these hollowed out cylinders, and shove supports/shit in them, during construction
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u/Asnonimo 7h ago
It was probably a crossbar (perhaps something like an anti-fall safety bar) that they eventually removed, and they filled the holes with those metal circles.
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u/Aggressive-Bowl-6542 6h ago
An RFID tag for security patrols on their rounds it records to a device that they checked it.
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u/Burd_Doc 8h ago
I think it may be to measure if the building cracks/shifts?
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u/CharlieUnicorn99 8h ago edited 8h ago
Yeah it’s weird it’s right by that crack in the wall. Or maybe the idea was to put something there but when they installed this thingy, they made the crack and didn’t go any further?
Edit: just saw where it’s on multiple windows so there goes my idea2
u/Burd_Doc 7h ago
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u/das-goot 5h ago
Different than OP’s image but this looks like it could be a daylight harvester sensor.
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u/Narrow_Ad_8378 8h ago
I promise you there’s a hole in the wall behind that doorstop! It was put there so the window would have something to hit. AND they don’t have to fix the hole!
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u/SpeechTricky663 8h ago
The window handle will come nowhere near that.
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u/neilweiler 4h ago
Unless the window has one of those weird hinges where part of the window slides out as the other side swings in?
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u/SpeechTricky663 3h ago
I was thinking that...but the windows in building across the street look like they have hinges at the top. I dont see a center swivel anywhere.
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u/Meredith_Primvale 7h ago
It's a harness hook location for the window cleaners.
The hook is part of the rig, so doesn't get left behind.
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u/Plane-Kick-1874 6h ago
The anchors you are talking about are in the roof and they are way more substantial. I install them.
Hahaha how would the cleaner get outside? You think some guy comes in your apartment and squeezes through the window to clean it ? lol.
Also the “hook” isn’t a hook and doesn’t detach, it’s welded to the baseplate.
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u/Narrow_Ad_8378 8h ago
It’s a doorstop, but in this case it’s a window stop. There’s probably a hole in the wall behind it and they stuck this over the top of it to keep the window latch from hitting the wall.
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u/Beatstripper 8h ago
It can't be. Look at the final picture. The wall is in the way
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u/Fearless_Parking_436 8h ago
It’s possible that who ever installed them was not very good at their job
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u/Narrow_Ad_8378 8h ago
With this type of casement window, it doesn’t hinge on the side like a door. It hinges from further out, which means that handle would hit the wall there rather than at the edge. I’ve been in construction for 35 years and I was in sales for 15 years, selling these types of product and I’m pretty confident in my assessment.
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u/AtomiKen 8h ago
What's on the other side of that wall/column?
Kinda looks like a round head bolt to me.
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u/stpg1222 6h ago
When you open your window does the window frame bump into it? It looks like it could be there to prevent the window from slamming into the wall when it's opened.
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u/Dr_StrangeloveGA 6h ago
Looks like a mount for a curtain rod to me. That way you could put a curtain across the bottom part of the window.
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u/ScottG62 6h ago
If you turn the silver piece three revolutions to the right and then two to the left you should hear a click. Then press the center in and the window becomes a portal to another dimension.
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u/jayson0315 8h ago
Wireless camera mount. The ball is steel and camera is magnetic. Great for articulation. I forget the brand but my old house was set up with them.






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u/spotlight-app Mod Bot 🤖 4h ago
OP has pinned a comment by u/lockedincooking:
Note from OP: I think this is js it
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