[TowerTalk] fistgrips

[Bill Heinzinger]

I used to do a lot of electric hanging scaffold work.
The kind that hangs on the outside of buildings on cables.
Two cables, one on each end of the scaffold run through a electric winch
sort of device.
The cable was 3/8 in.
We didn't use cable clamps. We used a device called a fistgrip.
If you could imagine a casting with one threaded stud and half a saddle.
It took two parts to make one clamping device.
When clamped onto the cable the studs and it's nut would be in opposite
directions.
We only used three on each cable, through a thimble and the thimble either
went to one of those giant hooks that went over the parapet wall or to the
built in swing out brackets on the buildings roof.

Hopefully you get the picture from my description.

Anyway, the number of fistgrips on each cable was determined by the Unions
safety engineers.
We had frequent OSHA inspections and they required three fistgrips also.

I find it odd that the drawing show four needed on a guy wire to support a
tower and we only needed three where our lives depended on it.

Have any of you tower people ever seen/used fistgrips?
I'd have to contact the union to find the engineering details.


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