Abaco First Order Lens and IOV burner start

With my friend Jeffrey Forbes of the Elbow Reef light station, firing up the Chance Brothers vertical tube IOV burner, and getting the lens turning.

[@baka42068]

There really are few things as beautiful as a Fresnel lens, especially one of that size. As cliche as this statement is, there seems to be a kind of beauty common to devices of the period that their modern replacements lack. Always wondered why that is the case.

[@jono3952]

Man that thing is LOUD when it gets going. Very cool though.

[@AEKarnes]

This is by far the loudest IOV I've ever operated. It is very, very worn. This has been in constant service since at least 1923 to this very day.

[@yakamarezlife]

Hey i found you from the proper people video your a vary interesting individual

[@Conanbroman]

Could be a scene from the latest scifi movie or 200 years ago, hard to tell :)

[@TurboTimsWorld]

In the UK the rotating lenses are angled either away or towards the next one and a blank section can be fitted (so not a simple hexagon shape looking down from the top) so when your out in your ship you see a morse code type flash from the light house and then therefore know which light house you can see as they are all different flash codes. Im sure this is world wide thing.

[@csudsuindustries]

Can you describe what is an IOV burner?

[@AEKarnes]

In short, IOV stands for Incandescent Oil Vapor. The burner consists of essentially a boiler tube for kerosene exposed to the fire of bunsen burners. Kerosene enters under pressure from air-pressurized kerosene tanks below, in liquid form. It is boiled in the tube into kerosene vapor and exits a jet under significantly higher pressure which comes from it being boiled, the jet sprays the vaporized kerosene through a venturi where it draws in fresh air with it to create a combustible mixture and it is then fed through closed tubes by velocity to both the bunsen burners below and the burner head above which has the thorium mantle on it, the mantle is what you see glowing so brightly as its struck by the flame. The flame by itself is blue and very dim and would not light the lens adequately. I need to make a video specifically about how these burners operate

[@csudsuindustries]

@@AEKarnes Wonderful explanation, thank you greatly

[@importfto]

Thanks for that I was trying to work out why the gas was at such high pressure.

[@Pithead]

He did a video on an IOV burner back in 2019 - 'Chance Brothers 85mm First Order IOV burner'.

[@Pithead]

Incandescent Oil Vapor burner.

[@garycallender-s6v]

Please define what an IOV burner is please.

[@garycallender-s6v]

Is that a gasoline burner?

[@Jm4steam]

Neat video. Nice to see that technology.

[@randymusselman4504]

Mr Karnes, Interesting video and the Fresnel lens is breathtakingly beautiful. Is this burner a very large version of a Hipolito lantern? A Hipolito lantern is very popular with the Amish and old order Mennonite cultures. I purchased one years ago, mostly stainless steel construction and was a handful to get started. ( My lantern may be a Petromax, either brands may be of Portuguese origin.) It’s been in storage for years but I recall two methods of starting the slow, lighting fuel in a bowl method to heat the generator ( vaporizer) or the blowtorch starter which was faster but more abusive to the generator. This lighthouse burner must consume the fuel, did they indicate the rate the fuel burns? Plus the heat from It must be tremendous but it looks like the fresnel upper and lower curved lenses already have built in air slots similar to shutters…..assuming the heat can be readily ventilated. Thank you for sharing this wonder heritage technology! Randy

[@alvmahn]

la la la la LIGHTHOUSE!

[@aishwaryap]

would love to see outside view of the Lighthouse :)

[@AEKarnes]

kzbin.info/www/bejne/rpLWmWyfjaiVj6M

[@novanut1964]

impressive