Engines > Restoration of Model Engines
Help needed to identify vert steam engine
Zephyrin:
I see that this is the water level model with a bent glass tube that goes into the boiler, I had missed this point...
on my little machine I had to redo this bent tube, and there's just a thick rubber disk that's tightened by screws as in the attached photo, and the result is completely watertight.
PS
Alas, I haven't been able to find a way to restore the shiny "steel"-colored metallic deposit on the brass boiler, which is largely gone over time!
http://www.youtube.com/watch?v=X1h2W9FW-4U
crueby:
Zephyrin, would that have been nickle plated to give it that steel look? Not hard to redo if so.
vtsteam:
Re colored patina for these engines:
--- Quote ---Q. I am trying to reproduce a blued finish on the brass boilers of a collection of antique model steam engines, most made in Nuremburg, Germany between 1870 and 1930. The finish on these engines range from purple to brown to dark blue. These can be seen at: http://John_o.myiglou.com/steammain.html
So far, commercial firearms bluing solutions have gone almost straight from brown to blue. I have heard that the old builders used a salt solution heated to the 80-90 degree (c) range to achieve this finish, but can find no documentation on this method, or the materials used. Can anyone point me to good reference material on this, or shed some light on the solutions used to achieve this finish?
John O'Rear
- Versailles, Kentucky, USA
2003
A. Lustre colours solution:
lead acetate [affil link].......25 gm
sodium thiosulphate [affil link]...240 gm
cream of tartar [adv: item on eBay & Amazon] ....25 gm
H2O..........1 lit
/ for copper and its alloys,iron(only blue), silver, gold, platinum, nickel plate/ Solution produces a series of lustre colours in following sequence(on brass): golden yellow-orange-purple-blue-pale blue-pale grey(cca 10 min.for sequence,40 °C temp.)!
Goran Budija
- Cerovski vrh Croatia
--- End quote ---
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