[UK-CONTEST] Gin Pole Pulley system

[G3SJJ]

Thanks Neil. Looks as though our general usage of gin pole system is 
incorrect as I found on my Google search.

Peter's reference was interesting in that if I asked the landowner on 
whose land my derrick would fall, I am sure he would let me drive tothe 
required spot, though I am not sure I want to change the Freelander for 
a minivan at present!

Anyway I found this, which does answer my real question -

http://en.wikipedia.org/wiki/Image:Polispasto4.jpg

I just wanted to be sure which pulley the rope is permanently attached to.

73 Chris G3SJJ



G3RIR wrote:
> Peter,
>
> I notice that you didn't give Chris an answer as to how to rig up a gin pole
> but instead a falling-derrick system!!!  I suspect your mind-reading of his
> real question was correct anyway!
>
> A gin pole is used for raising things vertically for example adding a
> section on a free-standing tower the lower sections of which are already in
> place.
>
> Reg, G8VHI can give chapter and verse on gin poles I am sure.
>
> Neil, G3RIR
>
> -----Original Message-----
> From: uk-contest-bounces at contesting.com
> [mailto:uk-contest-bounces at contesting.com] On Behalf Of Peter Bowyer
> Sent: 16 November 2007 10:02
> To: UK-Contest
> Subject: Re: [UK-CONTEST] Gin Pole Pulley system
>
> On 16/11/2007, G3SJJ <g3sjj at btinternet.com> wrote:
>   
>> Can anyone point me to a diagram of the correct way to rope up a 2
>> pulley system for gin poles, please.
>>     
>
> A quick google produced this:
>
> http://www.n6rk.com/falling_derrick_gme/pulley_schematic.jpg
>
>