Does anybody recognize this type of receptacle?

[Frank P. Macak]

Does anybody know this type of receptacle - appears to be line voltage 240V with ground - circa 1920-1950. What type of appliance was it used for? Thanks guys

[Stephen W. Stanczyk]

Antique tandem and parallel receptacle. circa 1910

http://home.netcom.com/~wa2ise/power/8plug.jpg

[James H. Bushart]

Nurpolian is the brand name, according to Wiki.

[Michael Larson]

I don't think so guys.

Look at the original photo again.

The slots don't line up the same.

[Frank P. Macak]

yes, the ports are offset - ??

[cjustason]

Originally Posted by jbushart

Nurpolian is the brand name, according to Wiki.

Wiki..... where you get all your facts?

[cjustason]

Originally Posted by fmacak

Does anybody know this type of receptacle - appears to be line voltage 240V with ground - circa 1920-1950. What type of appliance was it used for? Thanks guys

Are you in the U.S. of A?
Appears to be 240v? Did you check? What size and Type conductor if you can trace?

[Keith Runquist, CMI]

May be a radio antenna plug.

[Jeffrey R. Jonas]

This is one of those topics where Mark Shunk always came through for us.

[Brian A. MacNeish]

Originally Posted by jjonas

This is one of those topics where Mark Shunk always came through for us.

Yepp!! I think the moderated board drove him away!

[Joseph Hagarty, CMI]

Tandem receptacle from today's inspection.
This one was floor mounted.

[Marcel R. Cyr]

James was correct.

Source:
http://nethelper.com/article/AC_power_plugs_and_sockets


U.S. Combination duplex outlet

Left: An extremely old "Nurpolian"-brand black parallel and tandem duplex outlet rated at 250 V 10 A (although this type was normally supplied with 120 V). Right: T-slot duplex outlet.

The parallel and tandem outlet accepts normal parallel NEMA 1-15 plugs and also tandem NEMA 2-15 plugs. Both pair of receptacles are fed internally by the same supply. A more recent and fairly common version of this type is the T-slot outlet, in which the locations of the tandem and the parallel slots were combined to create T-shaped slots. This version also accepts normal parallel NEMA 1-15 plugs and also tandem NEMA 2-15 plugs. Incidentally, a NEMA 5-20 (125 V, 20 A) or 6-20 (250 V, 20 A) plug with a missing ground pin would fit this outlet. This type is no longer available in retail shops since the 1960s.

[Joseph Hagarty, CMI]

While i have seen this receptacle quite often....
I have yet to see a fixture (tandem plug) that could use this type of receptacle.

[Marcel R. Cyr]

I understand it to be that it hasn't been available since 1960, and if you read this,
This version also accepts normal parallel NEMA 1-15 plugs and also tandem NEMA 2-15 plugs. Incidentally, a NEMA 5-20 (125 V, 20 A) or 6-20 (250 V, 20 A) plug with a missing ground pin would fit this outlet.

It seems to have acepted later plug sets with two flat blades.

[Joseph Hagarty, CMI]

Yes.... parallel plugs will still work
has anyone ever seen anything with a tandem plug?