Unusual Svea pump rod?

hi this pump rod assembly is from an early Svea No 5 (big foot external NRV) has anyone seen one like it or is it a home made job? The parts seem well made.

The stove has been laying dormant for many years as it even had a cork filler cap washer so recent fiddling can probably be ruled out.

Cheers Nick

 

I think it's a correct pump rod. This is how they looked on early stoves.

Primus used this kind in their earlier stoves, so possibly Svea did too.
Otherwise it could be a Primus rod.

One example of an early (late 19:th century) Primus pump:

 

I just checked an old Svea catalogue, and they do show this type of pump, e.g. here, so no doubt it's correct.

 

Thanks Christer that's excellent!

I now have another more serious problem the burner is stuck absolutely solidly to the riser. The spirit cup will turn but the riser moved slightly in the tank so I was afraid to apply to much pressure!

I have done a temporary fix by soldering the riser back to the tank and will worry about leaks later.
I have tried plus gas around the joint and tried freezing the burner And warming the riser no joy! I have tried picking the washer out no joy!

Any other ideas folks?

I do not want to destroy the burner which is marked UH.
Cheers Nick
.

 

Thanks again Christer everything is beginning to look original apart from maybe the burner the cast iron trivet I got with it matches the catalogue as well.
Nick

 

Morning, Nick,

Christer is spot on the money. I have that same rod setup on several of my oldest stoves, of various brands, including some US-made brassies. Good luck with the rest of your fettle. I am sure some of the skilled Lads will show up soon, to answer your further questions. I'm not qualified to get into those deep waters...... yet! Take care, and God Bless!

Every Good Wish,
Doc

 

I have managed to separate the burner from the riser by finding an old thin filling knife and then filing some teeth into it and using this to saw the washer from between riser and burner allowed the application of liberal amounts of plus gas, it eventually gave up the fight!

I have soldered the riser to the tank in a pretty agricultural way as a temporary fix and it does not leak amazingly.

I also found that to get the pump to work well it needed a Viton washer between the back of the leather cup assembly and the fixed back stop on the pump rod this forms a seal on the pressurising inward stroke and still allows play for air to pass on the backstroke.

Thanks Doc for confirming Christers information.

I wonder just how early this one is?

The burner has the stamp UH any ideas on date for this ? It does not appear in the dating chart.

Nick

 

Here she is up and running.

 

Nick, I love that perfect flame shot of your stove.
But I love even more the wonderful cast iron trivet!

 

Loverly!

 

Hi, compare the features, such tank markings , type of lettering and external NRV with the photos of this stove:

https://classiccampstoves.com/threads/svea-no-5-early.4416/

I think your stove may be from the same time period, pre 1920.

Best Regards,
Kerophile.

 

Thanks gents I have covered the dodgy soldering in the picture with the Trivet!
Hi @kerophile I looked at that post of yours yesterday and agree it's probably pre 20s. Does yours have the same pump rod assembly?

@shagratork the trivet is great but has the usual crack! I did not notice it when I bought the stove.

Nick

 

Hi nmp, your stove has:

1. The external NRV.

2. The "PATENT" marking.

3. The " Blobby" lettering.

All evidence of an early date of manufacture.

As to the form of the pump of your Svea, I have seen this type before, including the brass bucket "spring" used to help spread the leather pump bucket against the inside of the pump shaft.

You will see that my post is from 2006, or ten years ago, and i cannot find it easily to check the pump piston.

Best Regards,
Kerophile.

 

Cracks on cast-iron trivets are common but do not seem to effect the function of the trivet.

 

Great looking stove Be interesting to see some more photos that could help further narrow down dating - pump cap, tank sides and base marking. That form of pump rod assembly disappears from the catalogues before WW1 ...

 

Photos to follow @igh371
Off on a stove hunt today!
Nick

 

Hi @nmp I forgot to mention the fourth "early" feature visible in your photo of your Svea:

"The Best stove in the World" marking around the upstand on the tank.

Best Regards,
Kerophile.

 

Thanks Kero this precedes the modest claim of King Of Stoves. The fifth might be the kinky legs?
Nick

 

As promised pictures.

Of blobby engraving.



Kinky legs.



External NRV cover.

 

More engraving pump rod handle filler and air valve.

Also blobby temporary soldering used to fix the riser in place after it came loose while undoing the burner!