Hi Guys,
Thanks a lot for the very nice comments you have made, I am pleased you like the pics.
I must say that I feel my efforts are a little tame when compared to some of the awsome stuff I have seen from you guys.
Ok, here are some additional notes to fill in some details for you: -
Pics 1 through 3... show a custom built SCOTT water tube boiler... this has a barrel of 2 1/2" dia x 8 1/2" long copper.
It is fitted with 17 x 1/4" bore water tubes and a single loop superheater and is designed for 90psi operation.
The barrel has 4 off 3/16" dia full length internal stays supporting the end plates, the top 2 of which extend from the end plate at the funnel end and are threaded to permit mounting from the outer case end plate.
The outer casing is made from 20 swg mild steel plate and this is lined with 1/4" thick ceramic insulation material (KAOWOOL).
The boiler is gas fired via a 6" x 2" ceramic burner (visible as a white block under the tubes) which is fed with mixed Propane/Butane gas from an external, re-fillable tank.
This particular boiler is now located in New Zealand where a good friend has it installed in a 60" long, twin screw, tugboat along with 2 off 5/8" bore and stroke twin cylinder slide valve steam engines (by G.P.Quayle).
A geared water pump is also fitted to one of the engines as this type of boiler is a fast steamer, with relatively low water content which need to be maintained at the correct level.
Photo 4..... This shows one of my standard 3 1/2" vertical centre flue boilers along with one of my 'TAIPAN' twin oscillating engines (7/16" bore and stroke).
This also is fitted with an engine driven water pump (for extra running time) and a steam whistle.
Firing is via a side mounted 1 1/8" dia ceramic gas burner (see other view on Gallery Pages)
Pics 5 and 6...... A bit of fun this one..... it shows a single cylinder steam roller which was built for a local friend who wanted something to play with in his garden.
The engine is 7/16" bore and stroke (one of my 'TAIPAN' cylinder sets) and this is geared 6:1 to the rear axle.
Boiler is 1 1/2" dia with 4 underslung water tubes.
Fired by a 2" x 1" ceramic burner with the re-fillable gas tank mounted in the tender.
No drawing were made other than scribbled sketches (bit like John's) it just sort of evolved as I went along.
Pic 7... this is my 'ASP' twin engine (baby brother of the 'TAIPAN') and is of 5/16" bore x 3/8" stroke.
it is quite capable of turning a 2 1/2" dia 4 blade prop in a steam launch of around 40" length.
This engine, and also the 'TAIPAN' are built from bar stock materials, with the exception of the cylinders, which I now have cast from bronze.... although the first ones were fabricated.
Pic 8.... this shows one of my standard 3 1/2" dia x 6" long horizontal centre flue boilers.
This is fitted with a 1 5/8" od centre flue containing 2 rows of 7 x 5/16" od crossed water tubes and is fired with a 1 1/8" dia ceramic gas burner.
The design is rated for 90psi max. working pressure, but when used with oscillating engines this is usually limited to 45psi.
Finally pic 9... this is another twin screw tugboat set up, this time with 2 of my 'TAIPAN' twin oscillating engines.
The boiler is 4" dia x 8" long centre flue with the centre flue being 2" od.
It has 2 rows of 10 crossed water tubes of 5/16" od and is fired with a 1 1/2" dia ceramic gas burner.
It is again designed/rated for 90psi but set for 45psi for oscillator use.
I hope this gives you a good feel for the major details, but please ask if you require any further info on any of them.
Tin.... thanks for the PM it helped a lot.
Bob.... as for sheet metal work...I suppose I have done more than I care to remember over the years... not my favourite pastime..... He He :
John (Bogs) yes the kitchen finally got finished... nearly finished me first... now if I can only get the last of my orders finished off I may be able to get started on the triple diagonal, slide valve paddle engine... but keep that to yourself for now.
:-X :-X
That will do for this post.
Best regards to all.
SandyC
;D
