ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
Top Posters(30 Days)
twh 3
Recent Posts
FPE in Germany
by Texas_Ranger. 11/19/17 07:30 AM
Ceiling fan distance from outdoor hot tub
by gfretwell. 11/16/17 02:18 AM
diazed fuses
by Texas_Ranger. 11/13/17 03:02 PM
Theft deterrent alarm
by gfretwell. 11/12/17 01:39 PM
EEPROM errors on XC7Z010-2CLG225I chip
by twh. 11/07/17 05:45 PM
New in the Gallery:
Gallery Test
Popular Topics(Views)
242,606 Are you busy
178,792 Re: Forum
170,041 Need opinion
Who's Online Now
0 registered members (), 29 guests, and 10 spiders.
Key: Admin, Global Mod, Mod
Previous Gallery
Next Gallery
Print Thread
Rate This Thread
Images In This Group
Seems_that_these_crowfoot_connectors_have_existed_as_far_back_as_1916,_as_seen_at_the_US_Patent_office_http://patft.uspto.gov/netahtml/PTO/srchnum.htm,_look_for_patent_number_1179728_(type_this_number_in_the_search_box,_and_on_the_next_screen_click_
Crowfoot outlet back in 1916 at the patent office
by wa2ise on 10/29/09 02:07 PM

Seems that these crowfoot connectors have existed as far back as 1916, as seen at the US Patent office http://patft.uspto.gov/netahtml/PTO/srchnum.htm, look for patent number 1179728 (type this number in the search box, and on the next screen click "images" and look at figures 3 and 4.

Comments
#189928 - 10/29/09 08:45 PM Re: Crowfoot outlet back in 1916 at the patent office [Re: wa2ise]  
Trumpy  Offline


Member
Joined: Jul 2002
Posts: 8,223
SI,New Zealand
Wow,
That's an interesting find!

I have somewhat of a problem with running an electric fry-pan off of what looks like a lighting circuit though. whistle


Super Rod Cable Installation Tools

Super Rod Cable Rod System
Super Rod Cable Rod System -
Voted
Best Product of the Last 50 Years by members of NICEIC


#189936 - 10/29/09 11:19 PM Re: Crowfoot outlet back in 1916 at the patent off [Re: Trumpy]  
aussie240  Offline
Member
Joined: Jul 2005
Posts: 223
Blue Mountains, NSW, Australia
Originally Posted by Trumpy
an electric fry-pan

The patent actually describes said appliance as a "chafing dish". Having never heard of such a thing it turns out that they still exist and are used for keeping food at serving temperature. So, maybe the current draw isn't as high as if it was actually doing the cooking.

Last edited by aussie240; 10/29/09 11:20 PM.

#189968 - 10/31/09 01:00 AM Re: Crowfoot outlet back in 1916 at the patent off [Re: aussie240]  
noderaser  Offline
Member
Joined: Mar 2007
Posts: 404
Portland, Oregon, United State...
Back in 1916, that (light socket) was the only source of power in a lot of houses, at least those that even had electricity.



Member Spotlight
sbi
sbi
indiana
Posts: 47
Joined: March 2008
Show All Member Profiles 
Featured:

2017 Master Electrician Exam Preparation Combos
2017 NEC Electrician
Exam Prep Combos:
Master / Journeyman

 

Shout Box
Powered by UBB.threads™ PHP Forum Software 7.6.0
Page Time: 0.017s Queries: 18 (0.003s) Memory: 0.7655 MB (Peak: 0.9151 MB) Zlib enabled. Server Time: 2017-11-21 19:18:31 UTC