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falstaff
Posts: 5593
Joined: Sun Jun 25, 2006 6:17 am

What Is This Thing? Science Related...

Tue Jun 16, 2009 7:18 pm

What is this thing? The school where I teach is being remodeled (first time since 1957) and all kinds of odd things are being thrown out. The head of the science department brought me this thing because he knows I like odd things. He couldn't tell me what it was and none of our other science teachers could either. You are looking at the front side, the back side looks exactly the same except that the pointer is black, instead of red. The two things sticking up on the base are screw connectors for something, I assume wiring. This device was made by W.W. Welch of Chicago, Illinois.

If you are wondering, the thing next to it is a Union Switch & Signal Vane Line Relay for 1910's railroad signals.

http://i204.photobucket.com/albums/bb309/NWA747/oddthing002.jpg
My mug slaketh over on Falstaff N503
 
HOMER71
Posts: 2128
Joined: Fri Jul 20, 2001 10:56 pm

RE: What Is This Thing? Science Related...

Tue Jun 16, 2009 7:37 pm

Maybe an old ohmmeter?

(edit) or an old voltmeter?

[Edited 2009-06-16 12:38:12]
"On spaceship earth there are no passengers...only crew."
 
AF340
Posts: 2267
Joined: Tue Jul 24, 2007 7:57 am

RE: What Is This Thing? Science Related...

Tue Jun 16, 2009 7:38 pm

My bet is it's a Galvanometer:


http://en.wikipedia.org/wiki/Galvanometer




Liam
 
JBirdAV8r
Posts: 3454
Joined: Sun Jun 24, 2001 4:44 am

RE: What Is This Thing? Science Related...

Tue Jun 16, 2009 8:02 pm



Quoting AF340 (Reply 2):
My bet is it's a Galvanometer:


http://en.wikipedia.org/wiki/Galvanometer




Liam

That was my first thought, and I'll second that opinion.  checkmark 

W.W. Welch...wonder if that's part of the modern day Sargent-Welch?
I got my head checked--by a jumbo jet
 
AverageUser
Posts: 1824
Joined: Tue Oct 23, 2007 6:21 pm

RE: What Is This Thing? Science Related...

Wed Jun 17, 2009 3:04 pm

This would seem to be a slighty more modern version:

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