MadModder
Gallery, Projects and General => How do I?? => Topic started by: Stilldrillin on October 09, 2011, 06:19:49 AM
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Looking among the inmates on my orphan shelf, this one said "hello"! :wave:
An all brass, Robinson type hot air engine. Non runner, as usual. Should be no real problem..... :thumbup:
Does anyone recognise the design? Is it made from any available drawings?
(http://i110.photobucket.com/albums/n95/Dayjo/P5150002.jpg)
(http://i110.photobucket.com/albums/n95/Dayjo/P5150005.jpg)
(http://i110.photobucket.com/albums/n95/Dayjo/P5150003.jpg)
(http://i110.photobucket.com/albums/n95/Dayjo/P5150004.jpg)
Just over 6" tall + plinth. 3" dia. flywheel.
Thought never to have run....... But been very well/ regularly polished before it arrived here. ::)
Anyone got a clue/ idea to it's parentage? Pleese!
David D
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Hmmm...... :scratch:
Over 100 hits, and not one comment. Guess it must be unique! :thumbup:
Wonder what it's story is. If only it could talk...... ::)
David D
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Never seen it before. Looks cool tho...
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Hi Dave
Interesting little engine, just had a look through my books, nowt seems to match.
Would guess at a home brew one-off.
What does the plate say ??? 'DEE' ???
Take it off. Maybe a bit of paper underneath, ..... big black X treasure buried here. ... :loco:
Cute though. Like the rolled bits on the firebox. If that's what it is ??
BC
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Heyup Dave.
The plate says ROBBO. Either the maker, or 'cos it's a little Robinson. :scratch:
Probably, never run...... The hot cap was clean/ not sooty, before I fired it.
Much too rapid heat transfer to top end. Needs a barrier of some sort.
The firebox looks rolled, though I doubt it. The nameplate is pressed. Letters raised.
(http://i110.photobucket.com/albums/n95/Dayjo/P5150006.jpg)
David D
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I'm watching Dave can't waite for you to get the little orphane running.
Just how big is that prphanage of yours. ?
Stew
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...... The hot cap was clean/ not sooty, before I fired it. .....The firebox looks rolled, though I doubt it........
It didn't by any chance smell of cordite when fired, did it? - it just puts me in mind of a small shell cartridge case?
Dave
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Stew.
I don't intend this to be a resurrection posting. I've precious little time to spend building Gold Blend, as it is! ::)
I might have a rummage round, in a day or two, and take a few orphanage pics. There are still a few left in there.... :thumbup:
Dave.
I don't think this piece of 3.5" bore brass ever went bang..... I would expect a case to have a tapered bore, and the little flange is neatly soldered on.
(http://i110.photobucket.com/albums/n95/Dayjo/P1010583.jpg)
In fact, all the silver soldering and workmanship is first class..... But (I think) the design is wrong, in the detail.......
(http://i110.photobucket.com/albums/n95/Dayjo/P1010585.jpg)
The short displacer cylinder is much too thick wall brass, and a regenerator displacer wastes too much space in a little engine like this.
My thoughts....... Unless anyone knows different? :smart:
David D
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Hmmm..... Some seven months gone now. :scratch:
But! I love it, when a plan slowly starts to come together. :smart:
I was browsing YouTube the other day, when a thumbnail pic caught my eye..........
It's another Robbo! :bugeye: With the date of Model Engineer's plans. :D
So, a quick look through Ebay. And, this arrived today........
(http://i110.photobucket.com/albums/n95/Dayjo/After%202012/P1020363.jpg)
Another step, in the right direction........ :thumbup:
David D
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Nice bit of detective work Dave
A bit like who do you think you are :D
Now are you going to get it running.
Stew
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Now are you going to get it running.
Stew
Just realised......... I've finally finished (most) of my winter, workshop round tuits. YAY!!! :D :D
Time to give it a coat of looking at. :thumbup:
David D