Simpson & Shipton

[flopearedmule]

Hi all!
I've been working on Stew's design of the Simpson & Shipton on and off for a few months now.   Today, I slapped it together to see if it would run.
What do you know, second adjustment with the cam and it took off!  I need to fine tune the timing a bit, but I have to take it apart and paint, make it look a bit better.
 
Here are a few pictures, and a link to a video of the first run!
Thanks

For some reason the picture preview's are sideways, when I click on them they are upright.

https://rumble.com/v2xrnh0-july-2-2023.html

https://rumble.com/v347qs8-simpson-and-shipton.html

[Chipswitheverything]

Thanks for posting the photos, it's an impressive and unusual engine, and there is plenty to watch in action as it runs! A nice project. Dave

[Admiral_dk]

Now there is a build to be happy about, as it is not the easiest to build or getting to run good 

Per     

[SteamR]

A beautiful built and smooth operation.
Congratulation.

How about the air consumption for operation? I have a similar one which needs a lot of air volume because of the large cylinder volume.

Richard

[BillTodd]

That runs really well. 

The Simpson snd Shipton was one of the first engines I animated for Doug


http://www.douglas-self.com/MUSEUM/POWER/rotaryengines/rotaryeng3.htm#simp

[flopearedmule]

Thanks guys!
Richard, it doesn't seem to take a lot of air.  I had the air nozzle throttled way down and it seemed good.  When I get it back together, I'll hook a pressure guage up to it and see how much pressure it takes.
I used a carbon rod for the piston, I'll see if it will last.  If It don't last, I'll make it out of delrin.

Bill, thanks for that link.  I never saw that before.  That's a good one to show people how it works.  I had to look at the prints for awhile to figure it out for myself.

Stew (Potty Engineering) emailed me his original plans, and it was a very straight forward build.  I had a 3d assembly print from Julius I looked at now and then.

[JULIUS]

I see that you have used my drawings.
Thank you

Julius

[flopearedmule]

I see that you have used my drawings.
Thank you

Julius

Thanks Julius!  It was nice having a 3d picture to look at. 
I used both yours and Stew's.   

[flopearedmule]

I have a few more pictures to post, then I need to get a picture of the completed engine running.  I'm going to work on that tonight. Thanks

[flopearedmule]

If anyone builds this engine, see my picture.  I made the cylinder bore a bit smaller because the finish was really good and I didn't want to go bigger and take a chance making it worse.  As you can see in this picture, it should have  been a bit bigger to cover the small openings. 
It doesn't seem to affect how it runs.  This engine was very easy to get running and I can blow in the hose with my mouth, and it will run.  Very smooth!
How much pressure  can an average person blow with his own mouth??

[flopearedmule]

Here is the first video of completed engine!   Many thanks to Stewart Hart (Potty Engineering) for sharing his design! 
Thanks for watching everyone! 


https://rumble.com/v347qs8-simpson-and-shipton.html

[crueby]

That is awesome!   Runs and sounds  wonderful. The motion is mesmerizing.  Super job!

[BillTodd]

That's really nice 

[Admiral_dk]

Great and smooth Runner + looks good too 

Per