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@arrl.net
Cc: towertalk@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@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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