Search found 2831 matches

by Fender
Sun Aug 16, 2020 4:37 pm
Forum: Live Steam
Topic: Kunkle safety valves
Replies: 15
Views: 4427

Re: Kunkle safety valves

I would also add that putting a restrictor plate / orifice between the boiler and the safety valve is likely to produce the rapid on/off cycling mentioned earlier. The orifice causes the pressure to drop underneath the valve as soon as it opens, causing it to re-seat, then pressure returns, opening ...
by Fender
Wed Aug 12, 2020 5:35 pm
Forum: Live Steam
Topic: mallet locomotive
Replies: 14
Views: 7694

Re: mallet locomotive

Wonder if it has a true "Belpaire" firebox? Or, are the "shoulders" on the firebox dummied? This was a very distinctive feature on Great Northern locos.
by Fender
Wed Aug 12, 2020 8:23 am
Forum: Live Steam
Topic: Feed water pump best practices
Replies: 6
Views: 1604

Re: Feed water pump best practices

I would suggest running the return line to the tender. Will be easier to prime the pump if it becomes “air-locked” than the configuration where the return line feeds directly to the inlet.
by Fender
Fri Aug 07, 2020 4:39 pm
Forum: Live Steam
Topic: Drilling through boiler tube
Replies: 10
Views: 2480

Re: Drilling through boiler tube

See the other another, current thread that mentions using naval bronze (954) for boiler fittings. Contains lead and tin in the formulation, so excellent resistance to corrosion. I think aluminium bronze would work very well also- it’s a bit stronger and less prone to deformation than gunmetal in th...
by Fender
Wed Jul 29, 2020 1:17 pm
Forum: Live Steam
Topic: inverted-rocker lateral-motion device
Replies: 5
Views: 1502

Re: inverted-rocker lateral-motion device

I recall seeing something about these in the ICS course material on steam locomotives. I used that (conceptual) information to design one for a 2.5” scale locomotive. You’re probably on your own for design details unless you can get plans for a specific prototype locomotive. Another source might be ...
by Fender
Wed Jul 29, 2020 12:08 pm
Forum: Live Steam
Topic: 3.5 Loco Lamps
Replies: 11
Views: 2947

Re: 3.5 Loco Lamps

Check on the Shapeways.com store site. They have some nice looking caboose marker lights in 3/4” scale. Also some Pyle classification lights.
by Fender
Sun Jul 05, 2020 6:38 pm
Forum: Build Log
Topic: 3/4" Scale J1e
Replies: 447
Views: 152019

Re: 3/4" Scale J1e

I have found examples of Lima Locomotive drawings where (apparently) revisions were made to a drawing whereby a dimension was changed (or perhaps corrected) but the drawing itself wasn’t modified. Another common revision would show different dimensions for the same part, depending on the builder’s s...
by Fender
Sun Jun 28, 2020 12:08 pm
Forum: Live Steam
Topic: Define SteamPunk please.
Replies: 6
Views: 2049

Re: Define SteamPunk please.

From the Ministry of Peculiar Occurrences: “ Steampunk is an inspired movement of creativity and imagination. With a backdrop of either Victorian England or America’s Wild West at hand, modern technologies are re-imagined and realized as elaborate works of art, fashion, and mechanics. If Jules Verne...
by Fender
Sun Jun 28, 2020 8:46 am
Forum: Live Steam
Topic: Position of Safety Valves
Replies: 15
Views: 4988

Re: Position of Safety Valves

If it doesn’t line up correctly, run a tap a little deeper into the boiler.
by Fender
Fri Jun 26, 2020 5:25 am
Forum: Live Steam
Topic: Position of Safety Valves
Replies: 15
Views: 4988

Re: Position of Safety Valves

Maybe the angled safety was to prevent the operator’s glasses from fogging (?)
by Fender
Thu Jun 25, 2020 12:47 pm
Forum: Build Log
Topic: Converting a Baldwin 2-4-2 LYN to a Baldwin 2-4-4
Replies: 715
Views: 181233

Re: Converting a Baldwin 2-4-2 LYN to a Baldwin 2-4-4

My wife and I went up to Alna this past Fall, and it was enough to convince me that my 0-4-0 wants to become a forney too!
by Fender
Thu Jun 25, 2020 11:01 am
Forum: Live Steam
Topic: Position of Safety Valves
Replies: 15
Views: 4988

Re: Position of Safety Valves

The problem with the forward location is that water will surge forward and aft in the boiler as you are running, so will inundate that connection at times. Usually steam for the throttle and safeties is taken from the middle of the boiler, for this reason. I’m surprised that there is Apparently no s...