In a message dated 4/23/2007 11:33:54 A.M. Pacific Daylight Time,
towertalk-request@contesting.com writes:
> Steve (k7lxc) writes that "only 2-3 teeth per surface of clamp actually
contact the mast". Actually, for my 2" mast and older positioner (which
appears identical as far as the shape, clamping teeth, and bolts are
concerned), 12 teeth make contact with the mast. These 12 teeth consist of
3 teeth in each of the four rows. Because each half of clamp inside, where
the teeth are, is shaped more as a "v" than a "u" and the rigidity
("massive" of the clamp I suspect that the pressure supplied by the bolts to
each of the teeth is not distributed evenly. Steve probably meant that only
2-3 teeth per row for a total of 8-12 teeth...
Yes, that's correct.
> Unless the "ductile iron" acutally ducts, it seems that the major holding
power is supplied by only 1 or 2 teeth per row and the other teeth in the
row may not be very effective. In the same way holding power of the teeth
in some of the other rows may be less effective.
How about "not effective at all"?
Cheers,
Steve K7LXC
TOWER TECH
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