Here are the remains of an unusual silent burner unit, which, judging by the stove to which it was attached maybe a Falk/Veritas product from c.1920. Note absence of any venting through the burner shroud and the 'U'-tube construction of the outer fuel feed tube. Unfortunately both sleeved inner cap and the original outer cap are missing, though they shuld be possible to reconstruct. Most unusual of all is the 'auto-light' set up. This comprised a closed bottom pipe which projected through and was either soldered or brazed to the spirit cup. Priming spirit entered the auto-lighter pipe through a tiny pin-hole drilled into the pipe just inside the bottom of the spirit cup. There is no sign that the pipe had any further support clip which must have made it very vulnerable to being broken off as has happened in this case, amazing it survived at all in any condition!
Yet another early stove that has features I do not recognise. Your comments on the auto-igniter are interesting and I agree with them Do you think that the shape of the igniter is correct? The of the end of the tube seems to be a long way from the burner.
- the correct position should be immediately adjacent to and just level with the top of the burner shroud. The only reason it is in the position photographed is because of the enlargement damage to the locating hole in the spirit ring from when it has been broken loose. Soldered or brazed I can see a repair to this being a bit of a sod to accomplish satisfactorily! Ian
@igh371 Interesting indeed Ian. So the inner cap would have been like that on a Primus 10 burner, having a riser tube incorporated. Searching through the Stove Reference Library, it reminded me that we’ve no catalogues in there relating to British manufacturers prior to about 1930. My guess is the burner’s a 1920’s product. Governor is the nearest match on superficial looks. Neither does this Perfektus burner have venting through the shroud. Nearest I’ve seen to the U-construction burner tube connection to the mounting is on this old Aetna. John
There are several examples of both 1896 or earlier Primus No.1s and similar date Hjorth Vesuvius blowlamps which have original burners with no base hex for installation, and these all also share this U-tube construction. Not that this silent burner is anywhere near that old, but it seems to show that this must have been a relatively easily manufactured starter design. @presscall
Some additional photos of this unusual auto-lighting set up: These photos are taken off a different example of the same stove, marketed by Falk, Stadelmann & Co. as their 'Farringdon' model, but manufactured for them by Ehrich & Graetz in Germany.
Now this changes everything Mystery solved Recently acquired, a second, slightly more recent, but still unbranded stove with another one of these burners. And this one still sported the correct original burner cap - a sort of large clone of a UFO burner So what have we got? Next followed a full day of frustration. First the burner appeared to have major leaks at and around the jet seat which proved impossible to resolve. But there was one way out, which was to try the cap on the other burner body. The outcome was the same But that prompted a thought that maybe the problem lay in the cap it's self. And that proved to be the case. The internal airways in the cap were obstructed causing a blow-back that had been igniting around the jet seat!!! That sorted, finally the burner did light , but still not perfectly: So, taking a cue from @presscall's recent UFO memory jogger thread, I replaced the standard jet with a 0.23mm 'economy' jet. And voila! One Ehrich & Graetz 'Graezea' burner, for that is what it is, finally revealed in all its glory: c/f here:
