Lighting History - 1890's Westinghouse Enclosed Carbon Arc Lamp

File information
Filename:	DSCN5274.JPG
Album name:	joe_347V / Lighting History
Keywords:	Lighting_History
Company and Date Manufactured:	Westinghouse
Model Number:	Style No 36007
Wattage:	Unknown
Lamp Type:	Carbon Arc
Filesize:	77 KiB
Date added:	Mar 15, 2010
Dimensions:	1000 x 750 pixels
Displayed:	461 times
AF Focus Position:	Center
Adapter:	OFF
Color Mode:	COLOR
Color Space:	sRGB
Contrast:	0
DateTime Original:	2009:10:17 17:30:55
Digital Zoom:	1x
Exposure Bias:	0 EV
Exposure Mode:	0
Exposure Program:	Program
Exposure Time:	10/601 sec
FNumber:	f/3.2
Flash:	Compulsory Flash
Flash Setting:	NORMAL
Focal length:	6.3 mm
Focus Mode:	AF-S
ISO:	68
ISO Selection:	AUTO
ISO Setting:	0
Image Adjustment:	NORMAL
Light Source:	Unknown: 0
Make:	Nikon
Manual Focus Distance:	0 m
Max Aperture:	f/3.2
Model:	COOLPIX L3
URL:	http://www.galleryoflights.org/mb/gallery/displayimage.php?pid=1421
Favorites:	Add to Favorites

Comment 1 to 9 of 9

Page: 1

TiCoune66

[Mar 16, 2010 at 02:11 AM]

Interesting, but they kind of ruined the fixture by cutting the original housing... Sad

Well, it's cool to see how it is made inside. Do you have a closer shot?

gailgrove

[Mar 16, 2010 at 02:46 AM]

I think its so post to open up like that.

joe_347V

[Mar 16, 2010 at 03:34 AM]

Sadly no, This is the only picture I have of the fixture, If I'm in that area again I'll see if I can get a close up picture of it. I recall that the original housing wasn't cut though, I think they just opened up the ballast door on it.

gailgrove

[Mar 28, 2010 at 02:30 PM]

Well I just went there yesterday, and its a very cool little place! BTW the housing does open up for sure.

joe_347V

[Mar 29, 2010 at 12:13 AM]

Yeah it's cool little place for sure, It's nice that you got to visit and see all those lights there in person.

streetlight98

[Jan 25, 2012 at 09:15 PM]

Wow. This a very old and very cool looking fixture. Smile

How did carbon arcs work? Is it just a current passed through a special rope?

gailgrove

[Jan 25, 2012 at 11:54 PM]

No, it was electricity arcing between the two carbon rods, that creates light. The carbon rods wear away so they need to be adjusted and eventually replaced. See this video. Wink

streetlight98

[Jan 26, 2012 at 02:50 AM]

Very interesting. Very Happy

Thanks for the video Niall.

joe_347V

[Jan 26, 2012 at 05:38 AM]

Interesting video, I've experimented with small AC carbon arcs using some lead pencil leads and a NST, although it was more smelly than bright. Laughing

Comment 1 to 9 of 9

Page: 1

Gallery of Lights

1890's Westinghouse Enclosed Carbon Arc Lamp

Here's a shot of a old Westinghouse enclosed arc lamp with the cover opened showing the control gear inside. Note that the glass globe around the carbon rods is missing.