BRE hollow wire lamp

Hello one and all. Does anyone know if there should be some graphite string or some other sort of packing (and how much) in the cleaning needle control?




The burner unit is 5.5" / 14cm. high and a 350cp cleaning needle is a nice fit in the jet.

Thanks in advance, Henry.

 

Hello Henry, someone should be able to assist you and welcome aboard mate! Jeff.

 

hi
yes, there is a graphite string but i don't know how much
I have never been obliged to change the graphite
here is one patent : FR477503A juin 1914
i think you will be able to understand the principe

 

Is the above Patent reference supposed to be a link?
If so, it does not work.

 

It's not supposed to be a link. It's just the patent number so people who are interested can look it up.

 

I put it into various search engines and all it brought up was some information about what happened in juin 1914 - and this page!

So, in actuality, not any help at all...

 

http://worldwide.espacenet.com/advancedSearch?locale=fr_EP
You have to search on this page but at this time the server is in maintenance

here are the drawings

 

Thanks Michel,
I found the site and I too found that it is in maintenance. The drawings you posted are helpful and I will try with some Teflon tape twisted into string. If that does not work, I'll order some graphite string.

Henry.

 

Good luck, Henry

 

Henry,

Welcome aboard !

 

Here is a link
http://worldwide.espacenet.com/publicationDetails/originalDocument?CC=FR&NR=477503A&KC=A&FT=D&ND=3&date=19151026&DB=EPODOC&locale=en_EP

 

Good link to Espacenet, JTL - thanks. I did have it at one time but somehow lost track of it.

Try putting 'Tilley lamp' or 'Willis Bates' into the search box. Most enlightening...

 

Thanks. Haven't had time for fettling yet but will have a go with Teflon tape (twisted into string) when time allows.

Henry.

 

Twisted PTFE is OK but it does tend to extrude and requires constant adjustment. The technical term is "stress relaxation and extrusion". I keep the asbestos off-cuts from mantle ties and coat them in high temperature anti-seizing compound, nickel based is preferred, and use these to make "valve twist". If desperate you can use abrasive paper to make graphite dust from a 2B pencil or a carpenters pencil (soft)and rub this into the using disposable gloves.
Both work well but the former is best

 

Hi Henry

Glad to see your posting here at last 8)

This is what you need.....

http://www.ebay.co.uk/itm/Gland-packing-rope-braided-3mm-Square-x-1m-long-graphite-/220907597005?pt=UK_CarsParts_Vehicles_BoatEquipment_Accessories_SM&hash=item336f1e6ccd

Stu

 

The essence of the patent is a flexible disc (membrane elastique) in French.
The membrane (f) is retained by a nut (h) (tampon) in the patent. Sealing is required between the disc and housing and the disc and lever (e) This appears to be a threaded arrangement. For the appropriate gasket sealing visit www.garlock.com The patent nominates steel (spring steel?) as the membrane material. If this (f) has corroded beryllium copper is a better choice than steel. I hope this helps

 

Hi Stu, I tried PTFE tape without success so ordered some 1/16" dia. graphite string from Maidstone Engineering Supplies, it arrived today so had a play this evening. Used all five feet and it still leaks but not as bad, I think I should have ordered the 1/8" dia. but too late now.

Thanks for the link, I'll try some of that, the square section looks as if it'll be easier to deal with and being thicker, should be more effective.

Henry.

 

Hi JTL, Thanks for the info. The spring steel disc is in good order with no rust or pitting. What the patent drawing does not show is that the rod goes through the disc at an angle - this is correct ! Thus, when the rod is turned, it (both ends) describes an arc. Therefor the end which locates in the needle carrier goes up and down. Because the rod is describing an arc, it needs some free space. The difficulty is placing the packing evenly around the top of a bell shaped hole. Packing the top side of the disc is easy. I guess I'll just have to keep practicing.

Henry.

 

Hi Henry
If I can get a copy of the patent PDF file that I can edit to select the text I will try and have it translated into English to better understand the intent of the patent. As no gland packing is shown in the patent I assumed there was none.
Warwick

 

Hi Henry
I have typed out some of the text of the Patent in Word and used Microsofts translator to translate the claims, page 2, and part of the description (50-55 page 1)
I think the "say" in translation is a mistranslation. The word is not meant to be dit=say but an abbreviation of ditto meaning the same.
Having said all this I am sure that there is no packing in the bell shaped chamber. There is a static mechanical seal between the lever and the diaphragm and the diaphragm and the housing/nut.
The lever knob g is raised against the spring (elastic) tension of the diaphragm to clear the orifice of the nipple and is returned to a neutral position once released.

If someone else can give an alternate description of the operation I would like to hear it especially if they are fluent in French and pressure lamps.
Warwick

Resume p2
L’inventiion consiste en un dispositif de manoeuvre de l’aiguille de nettoyage et réglage de l’injecteur des appareils à essence constitué par la combinaison d’une membrane métalique, d’un levier et d’une aiguille, la membrane dispose dans le plan de l’aiguille maintenant le dit levier à l’extrémité duquel l’aiguille se trouve suspendue
Translation
The inventiion consists of a cleaning-needle control and adjustment of the injector of household gas formed by the combination of a metallic membrane, a lever, a needle, the membrane has in the plan of the needle now says lever at the end of which the needle is suspended
Description p1
50
La manoevre rectiligne de l’aiguille b se fait de haut en bas à l’aide du levier e qui est ensuite rappelé par la membrane élastique f dans la position de repos
Translation
The straight needle b manoeuvre is done top down using the e handle which is then recalled by the elastic diaphragm f in rest position

 

hi Jones the lamp
not so bad
my english is not very good, but my french is better
I'll try to translate not exactly but in order to be understood.
"maintenant is not "now" but the "participe présent " of the verb "maintenir" in french,
(to hold in place , to maintain in english)

here is my translation :
The invention consists in a device for operating the cleaning needle and adjusting the fuel injection apparatus. This includes the combination of a metallic membrane, of a lever and a needle. The membrane is in the plan of the needle and maintains the lever at the end of which the needle is suspended

I can add : the membrane is steel
the lever must be actionned up and down to clean the jet, then the membrane puts it in the middle because of the steel's elasticity of this very thin round membrane (hardened steel)

I hope this help

 

Hi Michel
Your English is certainly better than my French. But that was 50 years ago at school.
Sometimes I wish Jean-François de Galaup, comte de Lapérouse had been a bit quicker had got to Sydney first.
It is much as I had expected on how it operates. Thank you for your translation.
Warwick

 

Hello again and a big "thank you" to everyone who helped with translation, information and other helpful hints. After modifying an old wrench, I was able to really tighten the nut on the pricker mechanism - no leaks now!

Here's the lamp now:

 

That's good news!

 

Wonderfull

 

Great work Henry 8) , are you going to bring it to Ipswich

Stu

 

Hi Stu, I'd love to but I don't know when I'll get there again. Since they changed the date of the Newark meet, it more often than not conflicts with the rally at Newby Hall. Depends where the preceding Bank holiday falls.

Henry.