research
 Patents
 Books
 Literature
 Articles
 Timeline
 Auction Archive

about
 About this site
 Wanted to buy

bulb gallery

Incandescent:
C
carbon
WD
drawn tungsten
WC
coiled tungsten
WM
mini tungsten
WS
pressed tung.
FG
figural bulbs
XL
christmas
XS
christmas sets
T
tantalum

Discharge:
NE
neon lamps
AR
argon lamps
XE
xenon lamps
MA
mercury
MC
fluorescent
MS
special mercury

Hardware:
F
fuses
FX
fixtures
PF
plugs & fittings
SA
sockets
SW
switches

tube gallery

 X-ray
 Geissler
 Crookes
 Radio
 Box art

museum pics

 Dr. Hugh Hicks
 
Fort Myers, FL.
 S.Slabyhoudek

links

 Related links
 Submit a link

 

Author Topic: UNO thread for shade holders on sockets  (Read 7282 times)

Offline adam

  • New Member!
  • *
  • Posts: 1
    • http://www.indiana.edu/~aainfo
UNO thread for shade holders on sockets
« on: March 05, 2003, 11:40:00 am »
Hello. I'm interested in the historical evolution of lighting components. I have many old books and catalogs, but none of them have an answer to these questions: Who (and when) invented the UNO thread for shade holders on lamp sockets? What does "UNO" stand for? Is there a patent? If there is, what is the patent number? The UNO thread shows up in my 1916 GE catalog, but not yet in a 1914 Bryant Electric catalog. I don't have any 1917-20 catalogs. My post-1920 catalogs are chock-full of sockets with UNO threads, from all manufacturers. Thanks. Adam
 

[This message has been edited by adam (edited March 05, 2003).]

Offline Hemingray

  • Hero Member
  • ****
  • Posts: 136
  • Lightbulb Junkie
UNO thread for shade holders on sockets
« Reply #1 on: March 07, 2003, 08:14:00 pm »
I've seen some of those, mostly the threaded ones.