Search found 2988 matches

by gwrdriver
Tue Oct 30, 2018 9:34 pm
Forum: Live Steam
Topic: Engine bed (GSC)
Replies: 14
Views: 2754

Re: Engine bed (GSC)

That GSC bed photo is a "stock" photo and has been used several times in railway histories (one I have is by Richard Prince) to represent an example of the cast steel frames being used in their locomotives.
by gwrdriver
Sat Oct 27, 2018 10:08 am
Forum: Live Steam
Topic: brass tubing
Replies: 7
Views: 547

Re: brass tubing

The generally accepted rule is no brass in the pressure vessel structure (shell, stays, bushings, etc), for the reasons you state. For external renewable/replaceable components (tubing, fittings, gauges, etc) brass is acceptable although bronze is preferred. The exception is low pressure, low volume...
by gwrdriver
Fri Oct 12, 2018 9:27 am
Forum: Live Steam
Topic: Union nuts & cones?
Replies: 15
Views: 1907

Re: Union nuts & cones?

Greg and all, Many years ago MSC offered a bewildering array of very reasonably priced "special" taps and dies which included 40-TPI. I began to buy a few, thinking this would be a good way to economically acquire 40TPI "ME" taps and dies, but what I quickly realized was that these US 60° thread for...
by gwrdriver
Tue Oct 09, 2018 10:54 am
Forum: Live Steam
Topic: Union nuts & cones?
Replies: 15
Views: 1907

Re: Union nuts & cones?

I found my fitting table (Cad) but it seems to be incomplete and needs to be checked against my source which was probably published in Model Engineer magazine. I'll see what I can do.
by gwrdriver
Tue Oct 09, 2018 9:43 am
Forum: Live Steam
Topic: Union nuts & cones?
Replies: 15
Views: 1907

Re: Union nuts & cones?

I have a table of these and when I'm back at my home computer later today I'll post it (if I can find it.) IIRC my table is based upon ME threads but the proportions are good for whatever thread system you want.
by gwrdriver
Thu Oct 04, 2018 12:33 pm
Forum: Live Steam
Topic: Candice Bergen remembers Disney's railroad
Replies: 7
Views: 1239

Re: Candice Bergen remembers Disney's railroad

As kids we tried never to miss Walt Disney's Disneyland on Sunday nights (ca.1954) and in those years there were regular segments on the development of Disneyland (Park), including the park railroad, but I don't recall ever seeing a segment on his home railroad. There may have been, and I missed tha...
by gwrdriver
Fri Sep 28, 2018 8:06 am
Forum: Live Steam
Topic: Unusual boiler design
Replies: 6
Views: 1095

Re: Unusual boiler design

I would say you are not losing more heat on account of the plate thickness. Heat loss depends upon the thermal conductivity of the material, its thickness, and exposed area, so heavier plates would actually help with heat retention as it would take longer for heat to migrate though the material than...
by gwrdriver
Thu Sep 27, 2018 8:57 am
Forum: Live Steam
Topic: Printer patterns
Replies: 7
Views: 1005

Re: Printer patterns

Very impressive Rick.
by gwrdriver
Tue Sep 25, 2018 9:21 pm
Forum: Live Steam
Topic: kozo a3 5/32 and 1/8 tube wall thickness
Replies: 9
Views: 1013

Re: kozo a3 5/32 and 1/8 tube wall thickness

Refrigeration capillary tube.
by gwrdriver
Fri Sep 14, 2018 1:02 pm
Forum: Live Steam
Topic: Station, Road, Steam Stafford locomotive
Replies: 2
Views: 578

Re: Station, Road, Steam Stafford locomotive

You might have a look at this account, which looks to be generally complimentary of the locomotive, and I've never heard a negative whisper about Station Road. http://www.gentoosjournals.co.uk/
by gwrdriver
Mon Sep 10, 2018 12:19 pm
Forum: Live Steam
Topic: welding boiler
Replies: 13
Views: 1821

Re: welding boiler

To answer the second part of your question . . . ideally stays should be perpendicular to flat surfaces and co-radial to curved surfaces, and also symmetrical. That is, identical on both sides of the firebox. That's the ideal, but things don't always work out that way. You can see in the illustratio...
by gwrdriver
Sat Sep 08, 2018 5:18 pm
Forum: Live Steam
Topic: Understanding types of copper?
Replies: 26
Views: 1967

Re: Understanding types of copper?

From the Copper Development Association site:
https://www.copper.org/applications/plu ... _prop.html

Somebody should set them straight.