[TowerTalk] Anyone using a sled system on the side of the tower to raise and lower antennas

[Carl Smidt]

Hello Jack,

I had a steel fabricator install side by side, end to end, barn door slide
rails on my 48 foot tower (the parallel rails are separated by about 10"),
on which he attached a self designed and on the job fabricated elevator
approximately 4 feet high, at the bottom of which the rotor is fastened and
the top of which the thrust bearing is installed. At the top of the tower he
designed a spring loaded grip (which can be decoupled by pulling a dacron
rope) which holds the raised elevator firmly in place when fully raised,
without relying on the cable. At the bottom he fashioned a platform inside
the tower on which he attached a marine, hand operated, winch, which moves
the elevator up and down through a heavy duty pulley fastened at the tower
top. The cable coming off the winch slides on nylon strips on the outside of
the tower where ever it might touch. Unfortunately, I don't have any
drawings, since he designed it, piece by piece, by the seat of his pants, so
to speak, as he went along. Works great and has been up for several years
now. Makes antenna maintenance a snap at ground (chest)level.

73,  Carl  VE9OV

-----Original Message-----
From: owner-towertalk@contesting.com
[mailto:owner-towertalk@contesting.com]On Behalf Of Jack
Sent: Friday, March 10, 2000 2:01 AM
To: towertalk@contesting.com
Subject: [TowerTalk] Anyone using a sled system on the side of the tower
to raise and lower antennas



Not the Hazer type but heavier for big antennas. They seem to use a
track system
up one side of the tower not wrap around it.
I want to put one up some AB105 tower or some tower about that size 26"
to
29" across I think the AB105 is.

Looking for some drawing of ideas used to do this.

Jack
WB4ROY



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