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Author Topic: Latest acquisition, An elbow engine! (with slow motion)  (Read 403 times)

B-Train

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Latest acquisition, An elbow engine! (with slow motion)
« on: March 18, 2019, 01:12:26 pm »
Hi!  That elbow engine is my latest acquisition.  Pretty happy about it since it's a bit rare and hard to make (at least for me  ;))
It was make by Claude St-Laurent in the 70's, a Quebec machinist who's also made many 7 1/4" gauge locomotive...
Need some lapping and "regasketing", but run well!

Hope it will please you!


Dr.Rev.DelmarMacReady

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I have never seen this design before. Very interesting and fascinating to watch the slow motion captures.
Wonderful addition to the collection!
Bennydaheeb

jkbixby

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I'm with Benny in never having seen one before - quite interesting to say the least. I probably wouldn't have even known how it functioned if not for the slow motion - thanks for sharing.
Regards,
Larry

IndianaRog

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What a fascinating design...seems to work beautifully !

Rog
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Jim

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WOW....never seen anything like that before......absolutely fascinating to view.
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Cheers.
Jim

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Stoker

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From what I've seen of them, they can be really finicky to run and don't have a lot of power which they actually do need to overcome their less than efficient geometry. Really easy to build them with a bit of bind in the system, so tolerances are best kept a bit on the loose side, which again makes them often be a bit weak when running.

A really good machinist, who sets them up square and with proper tolerancing, can make a good one that runs very well. Seems that may be the case with this one here!

NICE !!!
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St Paul Steam

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From what I've seen of them, they can be really finicky to run and don't have a lot of power which they actually do need to overcome their less than efficient geometry. Really easy to build them with a bit of bind in the system, so tolerances are best kept a bit on the loose side, which again makes them often be a bit weak when running.

A really good machinist, who sets them up square and with proper tolerancing, can make a good one that runs very well. Seems that may be the case with this one here!

NICE !!!
Daniel you are right, I have had two of those, one ran really well and the other one I couldn't get to run despite working on it for 6 hours.ö
the one above runs really nicely.
Bruce, St. Paul Indiana, USA
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B-Train

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Daniel you are right, I have had two of those, one ran really well and the other one I couldn't get to run despite working on it for 6 hours.ö
the one above runs really nicely.
It is but have an air leak between the wheel and the frame. I will try to improve it soon and let you know!

SlowArrow

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Thanks for sharing!  That really is a unique engine design.
Mike



crazydoug

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very unique. I had never seen one before either!
Thanks for the slo motion video
crazydoug

jerseysteam

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Neat! Thanks for sharing.
Dave

classixs

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That sure is a little beaut that one...


Never seen one of these running either, thank you so much for sharing !
Cheers
Jan
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Mi Steam

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Sure is a different type of engine and I like it.
Carl "There is a better way for everything. Find it."TAE