Search found 655 matches

by alanstepney
Fri Aug 14, 2015 12:12 pm
Forum: Live Steam
Topic: Attention all 3.5" steamers!
Replies: 15
Views: 3803

Re: Attention all 3.5" steamers!

On that list that I quoted from, all the models up to 3_1/4" gauge were shown as either spirit (methylated spirits) or occasionally petrol (gasoline) fuel. Some of the smaller ones were clockwork, and one or two even hauled passengers with clockwork motors. Electrical power was tried, usually direct...
by alanstepney
Thu Aug 13, 2015 12:16 pm
Forum: Live Steam
Topic: Attention all 3.5" steamers!
Replies: 15
Views: 3803

Re: Attention all 3.5" steamers!

A 1922 book by Henry Greenly lists the following gauges: 1_3/4"; 2"; 2_1/2"; 3_1/4"; 3_17/32" (later changed to 3_1/2"); 4_13/16" (later changed to 5");, 6" (alternate 6-1/2"); 7_1/4" (It also lists smaller & larger gauges, scales, tyre profiles etc, but I'll leave those out for now.) Of course, it ...
by alanstepney
Tue Jul 29, 2014 2:45 am
Forum: Live Steam
Topic: How fast this one?
Replies: 6
Views: 1117

Re: How fast this one?

The "singles" of which the most famous is probably that designed by Stirling, gave very high speeds (for the times) with a low piston speed, which was thought to be important, and without the complications of coupled wheels.The latter were compared to a horse with its legs tied together, and was sup...
by alanstepney
Tue Sep 17, 2013 3:17 am
Forum: Live Steam
Topic: J Stones and Co., Ltd electrics
Replies: 7
Views: 1849

Re: J Stones and Co., Ltd electrics

Jim,
I have nuerous bulb holders and some reflectors.

Send me a PM wth exact sizes and details and I'll see what I have.
by alanstepney
Mon May 20, 2013 2:21 am
Forum: Live Steam
Topic: A question about crown sheets.
Replies: 14
Views: 1359

Re: A question about crown sheets.

In early engines, some were curved to a greater or lesser degree.

Some even had corrugated crown sheets.

At the end of the day, simplicity won out over other ideas.
by alanstepney
Thu Dec 20, 2012 12:51 pm
Forum: Live Steam
Topic: Old Stuart Catalogues
Replies: 7
Views: 1196

Re: Old Stuart Catalogues

I have a feeling that it was dropped when Stuart's were sold, and if so, and if my memory is correct, it was in production throughout the H-on-T days, until Stuart's went to Guernsey.
by alanstepney
Thu Dec 20, 2012 8:50 am
Forum: Live Steam
Topic: Old Stuart Catalogues
Replies: 7
Views: 1196

Re: Old Stuart Catalogues

Harry,
Both of those list it. Shown as the H.A. Taylor undertype.
by alanstepney
Thu Dec 20, 2012 4:17 am
Forum: Live Steam
Topic: Old Stuart Catalogues
Replies: 7
Views: 1196

Re: Old Stuart Catalogues

I have two catalogues that list it, both from the "Henley-on-Thames" days.

One (undated) shows prices in £p so was post 1971.
(On the inside back cover, Coles Power Models were listing their "Golden Anniversary Catalog" for $3.00)

The other is dated September 1983.
by alanstepney
Tue Dec 11, 2012 2:50 pm
Forum: Live Steam
Topic: Copper Boiler Design
Replies: 53
Views: 7538

Re: Copper Boiler Design

I am pleased to see some attempts by various people to give some meaningful numbers to model loco boilers. Jim Ewins work was excellent and gave us a decent basis to work from, but with limitations (As Carddo said). Gathering the information required to cater for other gauges & scales, would be inte...
by alanstepney
Tue Dec 11, 2012 2:44 pm
Forum: Live Steam
Topic: Annealing copper for boiling building - question
Replies: 8
Views: 1256

Re: Annealing copper for boiling building - question

Copper is a wonderful material for boilers. (Apart from the cost!) When first made it will be annealed from the heat used to silver solder it. Do a pressure test, or steam it for the first time, and it will expand slightly. That will work harden it, and you soon end up with hard or half-hard copper....
by alanstepney
Sun Dec 09, 2012 4:56 pm
Forum: Live Steam
Topic: Copper Boiler Design
Replies: 53
Views: 7538

Re: Copper Boiler Design

Some of the most accurate and detailed work on boiler (and loco) design was done by Jim Ewins. His articles were on the Internet, but you will need to search for them. His conclusions on boilers were tested and checked by the late Prof Bill Hall, who found that his (Jims) formulae were valid within ...
by alanstepney
Sun Nov 18, 2012 8:01 am
Forum: Live Steam
Topic: Testing Steam Gauges
Replies: 12
Views: 1760

Re: Testing Steam Gauges

I feel that everyone should have access to some form of standard, that is KNOWN to be accurate. Now, whether that is a calibrated gauge at their club, a dead weight tester or whatever, is unimportant. What does matter is that they can be sure that thir "usual" gauge is accurate. Now, calibrated gaug...