Building Stuarts Compound Steam Engine

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saw:
Thanks for very nice comments.
NickG
I am sure that there is many way's to do this operation but this is the only way I know and it seams to work. :smart:

David D
Yes I hope so, so far there is no error but it's to earley to say yet. :zap:

John
Yes I do to I realy loves this tyoe of steam engine. :beer:

saw:
Crosshead_Guides
Hello Gentlemen.
Now it’s time for the crosshead guides.
The crosshead guides serves to connect the bottom covers to the bracket and allow the crosshead to run in a groove for guiding the connecting rod so it runs straight. :smart:

The crosshead guides is made of steel.

First I have to part of the steel plate and mark up for the hole…

…and then drilled to the right size.

Then find the centerline and mark it…

…and mille the track.

Here I have done both crosshead guides.

Next job is to mill the underside of the bottom cover so I got the accurate measure. ..

...and drill the hole for the crosshead guide.

Then threading the bottom cover…

…and drilled the bracket…

…and threading again.

Then mount the crosshead guides between the bottom cover and the bracket.

Now it looks like my Compound has got his suspenders…

These operations took some time but whom is in hurry… :lol:

I’ll be back

NickG:
Coming along very nicely :thumbup:

rleete:
Quite impressive, and a really nice job with the pics and writeup.

saw:
Drain Cocks.
Hello Gentlemen.
Thank you rleete and NickG for nice comments.
You may think I'm a little crazy but I have decided to continue this building blog with the drain cocks.
This drain cock is a tip from my Canadian friend Mr. John Bentley.

The drain cocks are very important equipment for the live steam engine. Its main task is to prevent the water stays in the cylinder, so it must be opened on when you start the machine, and then close it. Similarly when to stop the machine, you have to open to prevent water stay left in the cylinder.
First I start up with a brass bar and a small drawing how the body should be…

…then some turn on the lathe for the threading…

…and then I did the threading.

Then I drilled a hole …

…and some more turns on the lathe so I got this shape.

Here I test so the threading is correct.

And here I have done all four of them.

In the drill I needed to find the center…

…and then the middle…

…then drill the hole.

Of silver steel I made a tapered reamer so I can have a tapered hole…

…and finish off with a bottom pin for a fine surfers.

Here are the finish bodies.

And now I have to deal with the plug, first in the lathe and run a few turn for the threading…

…and for tapping...

…and some more turns on the lathe…

…then threading.

Then I have to check so the plug fits well in the body.

Then I have to bend it with some heat.

Then I have to make some washers, springs and nuts.

Then I mount the drain cock and put it in the drill so I can drill true the plug.

And here all of the drain cocks are mounted on the cylinder block.

This was a very fun equipment to make not so hard to do, but very small.

I’ll be back.

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