[GreenKeys] Hubbell Twist-Lock Help (evidently "Twist-Tite")

[pbirkel at gmail.com]

I don't know what to make of that L-entrance.  A possibility is that they
simply reused a part from an existing production line and the L-entrance has
no mechanical significance.  It does provide orientation information when
correctly inserting the parallel-blade plug, but that's not indicated as a
design-purpose anywhere that I can see.  Possibly the corresponding blade-L
is only at the tip and thus a plug _could_ be twisted but I'd have to
disassemble the mechanism to see how it's set up inside; it's certainly not
advertised that way.  Given that the product is named as a "Tite" rather
than a "Lock", I'm inclined to go with the cost-effective production-line
reuse theory, but then I haven't tried to determine whether there actually
was a corresponding "Lock" socket at the time. It remains a mystery!

 

From: greenkeys-bounces at mailman.qth.net <greenkeys-bounces at mailman.qth.net>
On Behalf Of John, W9DDD
Sent: Monday, February 21, 2022 12:12 PM
To: greenkeys at mailman.qth.net
Subject: Re: [GreenKeys] Hubbell Twist-Lock Help (evidently "Twist-Tite")

 

That's a bit wild.  Why the L hook then?  Perhaps some planned mating plug
with a polarity hook on it that didn't become popular enough to become a
standard?  Can't say I've ever seen the male plug that would have been
designed specifically to be a twist lock rather than parallel blade to fit
that, and I spent 10 years in a plant that was full of old stuff.  

I have to say I've never heard the term twist tite before and I worked with
a bunch of electricians 30 years my superior.  They always said twist lock
in reference to actual twist lock and old terminology tended to last over
new.  So it didn't seem to be in their vocabulary either. 

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The above comments or recommendations are SWAG. Use at your own risk.
John, W9DDD

On 2/21/2022 9:21 AM, Nick England wrote:

I found a 1949 electrical supply catalog with the 9213 "Twist-Tite"
receptacle. 

https://archive.org/details/MadisonElectricCo/page/n175/mode/2up?q=%22twist+
tite%22

 

The catalog included several other styles of Twist-Tite receptacles (pages
174-175) but NO PLUGS. It says that these take standard parallel blade
plugs/caps and provide greater retention. Weird - have you tried a standard
parallel-blade plug? 

Photos from the catalog are attached -

Nick England K4NYW
www.navy-radio.com <http://www.navy-radio.com> 

 

On Mon, Feb 21, 2022 at 5:09 AM <pbirkel at gmail.com
<mailto:pbirkel at gmail.com> > wrote:

I have an RA-87 loop supply that I'd like to resurrect but am having
difficulty with the DC loop power connectors.  They are Hubbell "Twist-Tite"
female receptacles as seen in the attached photo.  The diameter across the
outer edge of the prongs is exactly 5/8".  I'm not a "Hubbell guy" . but I'm
trying to learn!

 

TT 11-957 documents the RA-87 (see:
https://archive.org/download/TM11-957/TM11-957.pdf), where Section V
"Supplementary Data" references Stock No. 6Z7815, described as "Hubbell
#9213 Twist-Tite".

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