Gedas,
It is kinda cumbersome to wind the loose rope around the two cleats. We both
have different ways to accomplish the hoisting. It is interesting to
hear about other ways to do this. Thanks for sharing your method !
Happy Thanksgiving to you and your family !
Bob
K6UJ
> On Nov 28, 2019, at 8:20 AM, Gedas <w8bya@mchsi.com> wrote:
>
> I should have also added that I will never have to worry about a gob of rope
> (70' of it) that becomes excess and just sits on the ground when the "antenna
> wire" is hoisted up in the air. If I wasn't so lazy I would make a pair of
> hooks etc like you have but this way I kill 2 birds with 1 stone (I think).
>
> Gedas, W8BYA
>
> Gallery at http://w8bya.com
> Light travels faster than sound....
> This is why some people appear bright until you hear them speak.
>
> On 11/28/2019 11:06 AM, Gedas wrote:
>> I am hoping that I will never have to worry about the "loose end" of my rope
>> ever getting loose and coming off the top pulley requiring me to tilt over
>> my tower to re-thread the rope thru the pulley.
>>
>> Gedas, W8BYA
>>
>> Gallery at http://w8bya.com
>> Light travels faster than sound....
>> This is why some people appear bright until you hear them speak.
>>
>> On 11/28/2019 1:21 AM, Robert Harmon wrote:
>>> Gedas,
>>>
>>> I have been following this discussion with interest. I have a similar
>>> arrangement on my tower. I have a 3 foot pipe extending out from the top
>>> section with a pulley on the end.
>>> A rope goes through the pulley and is attached to the center of an 80 meter
>>> inverted V. Like you I can raise and lower the antenna with the rope.
>>> The difference is
>>> I dont have another pulley at the bottom and use a loop arrangement to
>>> raise and lower the antenna. I have two cleats vertically mounted on a
>>> tower leg a little over 3
>>> feet apart and after hoisting the antenna up I wind the rope around the two
>>> cleats. It takes approximately 10 wraps. What is the advantage of using a
>>> loop arrangement
>>> between two pulleys ?
>>>
>>> Bob
>>> K6UJ
>>>
>>>
>>>
>>>
>>>> On Nov 27, 2019, at 8:21 PM, Gedas <w8bya@mchsi.com> wrote:
>>>>
>>>> I was wondering if anyone was going to ask that :-)
>>>>
>>>> In the past what I have been doing is making a temporary loop (you know
>>>> the kind that if you pull on the ends with nothing inside the loop, the
>>>> loop will disappear).....well anyway once the double Bowline knot is
>>>> hoisted up to the top of the tower and wire antenna attached I create a
>>>> temporary loop at the bottom and slip it over a smooth curved 3/8" steel
>>>> hook I have fastened to one of the tower legs. It's not super easy to make
>>>> because the line is fairly tight but not so tight that I cannot make one.
>>>> When it's time to lower the antenna I simply pull the loop off that steel
>>>> hook, pull the knot apart and lower the antenna like a flag.
>>>>
>>>> Gedas, W8BYA
>>>>
>>>> Gallery at http://w8bya.com
>>>> Light travels faster than sound....
>>>> This is why some people appear bright until you hear them speak.
>>>>
>>>> On 11/27/2019 10:23 PM, Howard wrote:
>>>>> Hi,
>>>>>
>>>>>
>>>>> I'm sorry I don't have any additional knot information than what has
>>>>> already been provided, however, I have a question. After you pull the
>>>>> loop for your dipole to the top pulley, how do you intend to hold the
>>>>> rope in that position?
>>>>>
>>>>>
>>>>> Howard, WA9YBW
>>>>>
>>>>>
>>>>> On 11/27/2019 3:50 PM, Gedas wrote:
>>>>>> Hi Wes and TU. I am not sure I am positive what you mean by only a load
>>>>>> on the upper side of the knot.
>>>>>>
>>>>>> I am going to have two pulleys, one at the top of the tower and one at
>>>>>> the bottom. I am going to have a single long rope threaded around both
>>>>>> pulleys and I am going to use a fisherman's knot or similar to tie the
>>>>>> two together nice and tight. Not going to be much tension in the rope at
>>>>>> this point, maybe 10 pounds just to keep both sides of the line nice and
>>>>>> tight with no slop.
>>>>>>
>>>>>> Now, I was hoping for a single knot that not only joined the two ends of
>>>>>> the rope together but that also left me with an open loop so I could
>>>>>> easily slip in something like a temporary chain link etc and then attach
>>>>>> one end of a dipole etc to that link.
>>>>>>
>>>>>> This way from the ground I would be able to hoist up or down that end of
>>>>>> the dipole as I pleased. Now, when the end of the dipole gets attached
>>>>>> to the other end of that temporary chain link etc and the dipole is up
>>>>>> in the air stretched tight there may be 30-40 pounds of tension pulling
>>>>>> on that line. Since the two pulleys are fixed that tension from the
>>>>>> dipole will get translated to my ropes going up and down the tower
>>>>>> between the pulleys.
>>>>>>
>>>>>> I have been doing this type of arrangement for 20 years but only with a
>>>>>> pulley at the top of the tower. Up until now I just had the long single
>>>>>> rope looped around a round aluminum cross member of my free standing
>>>>>> tower.
>>>>>>
>>>>>> There was some friction with the rope looping around the 3/8" dia round
>>>>>> & smooth diagonal but I never had a failure. This season I installed a
>>>>>> meaty pipe across the tower at about the 5' level and attached a pulley
>>>>>> at each end (I am going to have several ropes going up and down so I can
>>>>>> support and mess with more then 1 antenna).
>>>>>>
>>>>>> I hope that paints a more clear picture. So far I have had a lot of
>>>>>> great ideas and the only issue is me understanding their words and
>>>>>> making my fingers tie the knots the way I'm supposed to hi-hi.
>>>>>>
>>>>>> Gedas, W8BYA
>>>>>>
>>>>>> Gallery at http://w8bya.com
>>>>>> Light travels faster than sound....
>>>>>> This is why some people appear bright until you hear them speak.
>>>>>>
>>>>>> On 11/27/2019 4:25 PM, Wes wrote:
>>>>>>> I'm with the other Wes on this one. If I understand correctly you only
>>>>>>> have a load on the upper side of the knot. I would join the ends with
>>>>>>> any old knot and tie a alpine butterfly loop on the upper side of the
>>>>>>> knot: https://www.animatedknots.com/alpine-butterfly-loop-knot or one I
>>>>>>> find easier to tie, a bowline on a bight:
>>>>>>> https://www.animatedknots.com/bowline-on-a-bight-knot
>>>>>>>
>>>>>>> Wes N7WS
>>>>>>>
>>>>>>>
>>>>>>> On 11/27/2019 2:06 PM, Wes Attaway (N5WA) wrote:
>>>>>>>> Gedas:
>>>>>>>>
>>>>>>>> You have received a lot of good suggestions. Here is one more, and it
>>>>>>>> is
>>>>>>>> pretty simple. You are apparently not going to be risking anyone's
>>>>>>>> life.
>>>>>>>> You are going to hold up one end of a dipole and there may be
>>>>>>>> 30-40-pounds
>>>>>>>> of tension..
>>>>>>>>
>>>>>>>> I would just join the two ends of the Dacron rope with a simple square
>>>>>>>> knot
>>>>>>>> and with 6-inches or so of each rope sticking out from the knot. Then
>>>>>>>> tie
>>>>>>>> the two ends into a square knot. Tape the ends to the rope if you
>>>>>>>> want to.
>>>>>>>> With constant tension this arrangement will never come loose. I have
>>>>>>>> done
>>>>>>>> this many times over many years with ropes into trees and on towers,
>>>>>>>> etc.
>>>>>>>>
>>>>>>>> Constant tension on the rope will keep the knots nice and tight.
>>>>>>>>
>>>>>>>> -------------------
>>>>>>>> Wes Attaway (N5WA)
>>>>>>>> (318) 393-3289 - Shreveport, LA
>>>>>>>> Computer/Cellphone Forensics
>>>>>>>> AttawayForensics.com
>>>>>>> _______________________________________________
>>>>>>>
>>>>>>>
>>>>>>>
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