[TowerTalk] Gripple's

[Don W7WLL]

If true, I wonder how the trade and architects could accept and use them for 
a seismic bracing system in the hospitals shown in the Gripple videos, but 
maybe the this 'chinese finger' device is made a bit differently?? Sure as 
heck wouldn't want something like that to come loose during a shake, rattle 
and roll time.

I note the seismic part is a GS-10 vs the ones I have which read Hang-Fast 
No 3 and look a bit different and which I didn't find on their site (yet). 
Will have to go back and read a bit deeper if they have good spec sheets on 
the two.

Good to hear from a user. Would be interested in learning from you what the 
'certain conditions'  re release are that you encounter.

A good Pinot Noir perhaps out there on the vines at your place??

Don W7WLL

-----Original Message----- 
From: Ed Muns
Sent: Sunday, October 01, 2017 6:06 PM
To: w7wll at arrl.net
Cc: towertalk at contesting.com
Subject: Re: [TowerTalk] Gripple's

I'm a commercial winegrower by vocation and deploy Gripples generously 
throughout the vineyard.  They are wonderful parts, but I would NEVER use 
them in any tower or antenna application.  They  are a "Chinese finger" 
design and subject to release in certain conditions.

73,
Ed W0YK
On Oct 1, 2017 5:49 PM, Don W7WLL <w7wll at arrl.net> wrote:
>
> Friend in the construction trade gave me a handful of what he called 
> ‘Gripple’s’ a few weeks ago and they got buried on my desk of ‘stuff’.
>
> He claimed they were SS and used a lot by electrical contractors and by 
> some of the grape growers out here in Orygun (many also vintners).  Couldn’t 
> see what the little metal dudes were really for and his explanation from 
> just looking at one didn’t work, so did the internet thing!!
>
> Found this - 
> https://www.gripple.com/images/Markets/Building%20Services/Products/Standard%20Hanger/Downloads/pi01usa1.pdf
>
> Did a little more sleuthing at the Gripple site and lots of interesting 
> little items (and ideas) popped up.
>
> Some of these unique little items JUST have to have some use to the 
> amateur radio community.
>
> Anyway, thought I’d pass this along for you to look at. Might be some 
> unique uses for tower and antenna work (or for those with all the ranch 
> acreage).  If some great ideas do come to mind be sure to share them with 
> the rest of us.
>
> Have a nice day,
>
> Don W7WLL
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>
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