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Today is the 99th Anniversary.... #211664 11/08/13 10:01 AM
Joined: Dec 2000
Posts: 4,287
electure Offline OP
Member
On November 8, 1904 Harvey Hubbell Jr. patented the first electrical plug, an invention that changed the industry forever. The receptacle was like the base of an Edison base light bulb.

[Linked Image from cthist.chnm.org]

The 2 prong design was prone to shocking users,
so in 1928 Philip Labre invented the 3 prong plug with a safety ground.

Harvey Hubbell III took his father's invention a step further, and in 1938 introduced the first Twist Lock plugs.

Hubbell had previously patented the first pull chain light socket in 1896.



Hubbell was quite the visionary





Work Gear for Electricians and the Trades
Re: Today is the 99th Anniversary.... [Re: electure] #211691 11/11/13 11:01 AM
Joined: Feb 2002
Posts: 2,233
H
harold endean Offline
Member
Happy Birthday to the start of something shocking! Lets plug in some birthday candles. smile

Re: Today is the 99th Anniversary.... [Re: electure] #211701 11/11/13 07:55 PM
Joined: Nov 2002
Posts: 790
W
wa2ise Offline
Member
There's this 3 prong plug invention in 1915, the one that looks like the one used in Australia today.
[Linked Image]

Last edited by wa2ise; 11/11/13 08:02 PM.
Re: Today is the 99th Anniversary.... [Re: electure] #211704 11/11/13 11:23 PM
Joined: Oct 2000
Posts: 2,721
Scott35 Offline
Broom Pusher and
Member
Thanks to both Electure and wa2ise, for posting these items!!!
thanks clap thumbs cheers

--Scott (EE)


Scott " 35 " Thompson
Just Say NO To Green Eggs And Ham!
Re: Today is the 99th Anniversary.... [Re: Scott35] #211707 11/12/13 02:56 AM
Joined: Jul 2007
Posts: 1,335
S
sparkyinak Offline
Member
Agreed Scott. I like nerdy stuff like this. I'm a nerd to the trade


"Live Awesome!" - Kevin Carosa
Re: Today is the 99th Anniversary.... [Re: electure] #211715 11/12/13 04:07 PM
Joined: Apr 2002
Posts: 7,229
HotLine1 Offline
Member
Ditto on the "Thank You" guys. Interesting stuff.


John
Re: Today is the 99th Anniversary.... [Re: HotLine1] #211726 11/13/13 10:55 AM
Joined: Jul 2002
Posts: 8,377
Trumpy Offline
Member
Invented 99 years ago and we're still trying to get rid of them. grin

Reason I say that, guys, is because every now and then, I'll go to a house over here, where a guy has one of the Bayonet Cap versions of these adaptors, in his garage and he's got it wired up to a 2 bar (2000W) heater and wonders WHY he keeps blowing lighting fuses. rolleyes

This sort of thing was banned over here back in 1976, but some people have still not heard that news-flash. grin

Re: Today is the 99th Anniversary.... [Re: electure] #211732 11/13/13 07:33 PM
Joined: Dec 2001
Posts: 2,488
T
Texas_Ranger Offline
Member
I wonder what the intended use for that 3-prong plug was! It can't really have been earthing if there was an Edison adaptor. Maybe it was designed for two hots, e.g. from a 3-way Edison socket.

Edison to socket adaptors were banned in Germany rather early, actually in 1959 (along with plug-in multi adaptors for Schuko plugs as they were considered dangerous for the mechanical integrity of the socket). Don't know when they were banned in Austria, but probably not much later. Last time I've seen one in use was back in the 90s and they were rare by then.

Re: Today is the 99th Anniversary.... [Re: electure] #211748 11/14/13 11:36 PM
Joined: Nov 2002
Posts: 790
W
wa2ise Offline
Member
Just noticed that it would be the 109th anniversary, 1904 to 2013 is 109 years. Ten years ago it was the 99th. grin

Anyway, it sill calls for some cheers

Re: Today is the 99th Anniversary.... [Re: wa2ise] #211756 11/15/13 12:47 AM
Joined: Jul 2002
Posts: 8,377
Trumpy Offline
Member
Originally Posted by wa2ise
Just noticed that it would be the 109th anniversary, 1904 to 2013 is 109 years. Ten years ago it was the 99th. grin

Anyway, it sill calls for some cheers

Absolutely, mate! clap

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