Discussion in 'Other models' started by Anthony, Jul 31, 2015.
Thats big makes the FL6 look so small .
What size mantle does it use .
Wonder if you get 48 hrs out of the tank running this one .
Just for you other guys the pump is on the left at the front with fuel gauge on left to .
Not the same as the FL6 or SL1 either .
Special tank for this one ?
How about some more information, and above all the correct model number?
Some vague similarities with an SL20, perhaps, but not really?
Is it a frankenlamp?
I don't think it has a model number we know, Christer and it's unique as far as I'm aware - so it's known to Tilleyphiles as 'Big Bertha'. My suspicion is that it's a genuine Tilley 'one-off'.
I have the impression it's an FL6 tank and probably the working bits (vapouriser, burner and mantle) are fairly standard Tilley, but 48 hours? - I somehow doubt it!
By unique, do you mean that this particular specimen is the only one, or have others been seen?
The swiss army had Tilley searchlights made.
In 2012 during the petromax meeting in Soltau, one was one display.
Major difference was the burner. Tilley vaporizer but a petromax style airtube and a metal shield in front of the burner. So only the reflected light is what you see/use.
On the bottom in front of the mirror you see an spare clay burner.
Big bertha was made about 1939.
Will let Anthony tell us more .
Yes, Wim - but what you've shown is, from memory, an SL20, not Big Bertha.
"Unique" as in, literally 'unique' - unless anyone else knows any different, of course. Like a lot of other very rare Tilley stuff e.g. the FL10, BB seems to have been an Aussie import. I wonder what else they've got lurking about 'down under'...
Hi, I am not saying this lamp is the lamp in these articles but there is a fair chance it might be. I will let others be the better judges.
The reflector is about 24 inch and it is rather heavy.
That first article describes your big light .
The right dia size and the hand adjustments for spotlight to floodlight etc .
I did find another similar article that mentions a 23 inch reflector but I can't find it now.
Lamp is in Jim Dicks book on page 47.
Great Pics and find is it yours. I don't think I could sneak that in without it being noticed
I'm glad this historical item is in safe hands. I'm interested in where you managed to get your hands on it - it seems to be well looked after.
Has it sunk in yet that you actually own this goliath?
I think I recall you saying you may get a new reflector made.
If you are would it be out of glass or are you thinking fabricated stainless steel or similar?
I was asked to post some pics of her running so here are a few.
These were taken by Bob about 18 months ago and I have not had her running since then as the 800cp mantles (like these ) are kind of hard to get.
If any one has a source for them I would be more than interested
Big Bertha or Muckle Maggie works very well indeed!
Very nice, Anthony!
What did the neighbours say???
Tony, nearest neighbours are about a kilometre and a half away so not an issue
That really is quite special!
Did you find it attracted very big moths at all?
Anthony, you do have some interesting toys!
No big moths PB. Must have been a bit cold for them.
Martin, if your ever in Melbourne ...
Just last night I found that she had been to Tasmania for the Royal Hobart Show.
I make the assumption that this is the same lamp because as far as I know, the only other 100,000cp lamp that Tilley made was the SL20. That was not made for another 18 years after this article.
Well Tonys in tassie maybe he could do some research for photos over there we have the date etc 17 oct 1940,
That article is October 1940.
Good to see it made it to Tasmania.
Maybe it should come back?
Crossed with Bob.
I'll see if I can find more info.
My interpretation of this ad from 1939 is, that Big Bertha may not be the only one of it's kind.
Very interesting Matty. Being 1939 it is too early for the 100,000 CP SL20 as far as I know.
I think mid 50's for SL20's so this ad can only be referring to Big Bertha's. Well, as far as what we know of Tilley history at this stage, it certainly implies Big Bertha's.
Having said what I did above, after giving the matter some thought I suppose there are other possibilities.
Because of the year and the 100,000 CP mentioned the chances are most likely it is a Big Bertha lamp the ad is referring to. Recent discoveries should be taken into account though.
As you know, I found that not seen before Tilley, counter balance lamp that was marketed in Asia. I suppose it's not unreasonable to think that perhaps SL20's were being sold in places like Singapore prior to when they are first known in the UK or Australia. If there was no internet, how many Brit's would know of the EX 4 the CH lamp head etc? Those items and others, were manufactured for over sea's markets. Perhaps the SL20 was developed for and sold in Asia, 15 years before making an appearance in markets that we are more accustomed to. However unlikely, the possibility remains, it may have happened.
Big Bertha may have been the prototype, the SL20's the end result - perhaps not.
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