Lanterns/Fixtures > Antique

Rupture Disc for Series Light Bulbs

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Nevada Willis:

--- Quote from: Medved on October 15, 2010, 01:05:30 AM ---There are side contacts, that fit to the disc area, so when the socket is removed, thes contact short out, so keep the rest of the string working.

--- End quote ---

These jaw-like contacts press into the indentions on the socket blades to hold the socket in the luminare from falling out, and as just explained they have enough tension to close together any time the socket is removed.

rjluna2:
Thanks for the explanation, Nevada :D

I wouldn't image where the rupture disc is located, now I understand where it goes.

Nevada Willis:
Here are some better pix of a series socket with a film cutout rupture disc.  This disk had melted through so it's not as clean looking as a new one but you can get an idea as to its size and how close the tolerances are between the socket blades.

rjluna2:
Ahh... Thanks Nevada 8)

Nevada Willis:
Here's a site for a company that still sells film cutouts.  It shows all four breakover voltages.  Before you run out and buy some, please note that a bottle of 100 discs is up to $370.00!  Between the high cost of series incandescent bulbs and discs, not counting the higher electricity costs, the last remaining series incandescent systems may disappear sooner rather than later.

Anyway, check out this page-

http://www.filmcutouts.com

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