Hello there was a real old cq that had a home made elevator for a rohn 45g
tower. It was a one sided elevator with a rotor shelf and trust bearing shelf
that road the side of tower on two cables for the track and the center cable
that ran around a upper pulley to a crank winch on bottom to raise or lower
elevator. Once the elevator reach the top it got ubolted to one side of tower
legs with a total of eight ubolts. I have a hazer with a wheel kit and it will
not raise a beam over thirty feet of boom length on a 25g. I built a one sided
elevator 48 inches long and out of all 3/16 steel. It has a rotor shelf and
trust bearing shelf supported to angle iron. I built the top and bottom wider
than the tower for leverge on the rideing cables. It will take ubolts on top
center and bottom to legs. I have a ten meter seven element beam on a 46 foot
boom the beam is light weight 50 pounds. I guess the k factor is high. Once the
elevator is ublolted to top i was going to put the trangle plates all around
like the hazer and put a brace to the leg incase the ubolts broke. My main
concern will the tower hold up the antenna. Thank you Mike kb1qh
_______________________________________________
See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless Weather
Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any questions
and ask for Sherman, W2FLA.
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
|