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Westinghouse Just and Hannaman Patent Sintered Tungsten Lamp c1908

Westinghouse Just and Hannaman Patent Sintered Tungsten Lamp c1908

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General overview of an early sintered tungsten filament lamp, note the composite upper support loops and blob-welded thick lower supports. This is no "ordinary" squirrel-cage lamp.
It is E.O.L. or inertially jolted as the filament and some other parts sit in the bottom of the bulb but it is still an impressive example of how it was done before tungsten could be drawn into long, tough wires.

95-045Jr.jpg 12-371D.jpg 12-371Ar.jpg 12-371C4r.jpg

Light Information

Light Information

Manufacturer:Brand, Westinghouse, Manufacturer, Unknown, Company, Unknown, Patent, Just and Hannaman
Model Reference:Serie II Angle
Lamp
Lamp Type:Sintered Tungsten Filament early Historic Metal Filament
Filament/Radiator Type:7SC6IU Seven Supports general squirrel cage structure 6 inverted "U" shaped "hairpins"
Base:B22d-2A/36 x 39 Brass, White Ceramic, Spring-Loaded Lutes fastened with white plaster like cement
Shape/Finish:St-65
Service Life:c800h
Electrical
Wattage:45 (Guesstimated)
Voltage:120
Current:375mA (Guesstimated)
Optical
Lumen Output:356 (30 German Caldle Power)
Lumen Efficacy:c8 lm/W
Color Temperature:c2450
Color Rendering Index:100
Physical/Production
Dimensions:65mm dia., 137mm tall including exhaust tip
Factory Location:Exact Location Unknown, Austria
Fabrication Date:30th of June 1908
Application/Use:General Domestic Lighting

File information

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Filename:12-371Ar.jpg
Album name:Globe Collector / Incandescent Lamps
Keywords:Lamps
File Size:32 KB
Date added:Jan 04, 2013
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THEfluroKIWI
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Jan 05, 2013 at 06:19 AM Author: THEfluroKIWI
awsome lamp you have there, how did you come across this?
Globe Collector
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Jan 05, 2013 at 07:11 AM Author: Globe Collector
A friend saw it at an Antique shop and got it for $25 back in May 2012, he gave it to me at the New Year Party, hence it is my last lamp for 2012, quite a crashendo, I would say. He had no idea what it was, he just thought it was another ordinary squirrel-cage. He got another squirrel cage with it, tipped, working and retouched twice and coated on orange lacquer, but this is the real interesting piece from a developmental standpoint!

Manufactured articles should be made to be used, not made to be sold!

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migette1
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May 10, 2013 at 10:08 AM Author: migette1
A great find thanks for showing

Interested in the history of electric lighting and incandescent in particular and neon glow lamps.

Lampje
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Jan 19, 2016 at 04:53 AM Author: Lampje
That must be a very good friend of yours.

The first Just and Hannaman I see in real.
Still a beautiful historical lamp.

This piece is missing in my historical overview.
It must be very rare.
Thanks for sharing this museum piece.
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Jan 19, 2016 at 05:24 AM Author: Globe Collector
Pity it is in such poor condition Wieger. I think Rigo or Max might have a "good" one.....not a patch on your Osmium though!

Manufactured articles should be made to be used, not made to be sold!

Fee, Fye, Fow, Fum, A dead man's eye and a parrot's BUM!

Lampje
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Jan 19, 2016 at 05:30 AM Author: Lampje
Some time ago, on a website I kept somewhere, I saw a German museum with about 20 or more good Osmium lamps
But all with E27 socket, and I didn't see one with a B22 socket like mine.
Never see on again with a B22 socket, so this one must be quite unique in my opinion.
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Jan 19, 2016 at 06:26 AM Author: Globe Collector
You keep it safe Wieger.....!

Manufactured articles should be made to be used, not made to be sold!

Fee, Fye, Fow, Fum, A dead man's eye and a parrot's BUM!

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