Bollard design

[flushcut]

Air is a poor conductor of heat. Pouring a pint of water on and letting it evaporate would be hundred times more effective. Don't believe me? Heat a Bollard up to temperature, then turn your leaf blower on it. You'd be amazed how much blowing it will take to cool.


Brevity and smelling errors courtesy of iPhone using Tapatalk

I believe you about water being a better cooling agent.

 

[PCTREE]

How about a steady urine stream?? Seems more on a tree guy level...

" Hey Joe-Bob, I got a big piece. Crack another Bud-light!"

 

[Marc-Antoine]

An other way is separate the rope area from the heat source. Think of a drum fitted on a disk brake, a clutch or a torque limiter (same purpose in fact), all with an easy and quick way to adjust.
with 4 or 5 turns, the rope doesn't slip any more, or at least only a little. No more glazing, the main friction and heat release would be on the other part.

 

[treesmith]

With 4 or 5 turns, it would be difficult to let the work run, would it not?

 

[flushcut]

I think he means keep the rope static on the bollard and transfer the friction to a clutch of some type. But, I would say that you would need to feed the rope in at the same rate that clutch is slipping otherwise the bollard is just a bollard without a clutch.
You can let it run with four or five wraps but the chunk has to be stupid heavy, heavy.

 

[treesmith]

Unless he meant that the rope itself doesn't move at all (or very little), while the drum itself rotated on a spindle of some sort, with the braking mechanism slowed/stopped the drum, whilst the rope stayed fixed, only moving as the drum "winched" it off, somewhat like a GRCS operating in reverse.........?

 

[sotc]

Thats what I gathered, a brake rotor attached to the back of the drum. Interesting concept

 

[Marc-Antoine]

I think he means keep the rope static on the bollard and transfer the friction to a clutch of some type. But, I would say that you would need to feed the rope in at the same rate that clutch is slipping

That's it

Unless he meant that the rope itself doesn't move at all (or very little), while the drum itself rotated on a spindle of some sort, with the braking mechanism slowed/stopped the drum, whilst the rope stayed fixed, only moving as the drum "winched" it off, somewhat like a GRCS operating in reverse.........?

That's it too

 

[flushcut]

Nice!