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Stanley
Local Historian & Old Fart


36804 Posts
Posted -  25/11/2004  :  14:20
I've always been fascinated by the things people do in their spare time when they can do exactly what they want to do. Men and sheds are a particularly fertile field. Women tend to do their thing in the comfort of the house.



I was delighted to see Andy's picture of the clock movement he has made.







It struck me that we could perhaps start a new topic devoted to spare time skill. So Andy starts it off and my contribution is this:







It's a small steam engine made from scratch and is based on the Stuart 5A but a longer stroke. One of these will drive a 14 foot boat with steam at 250psi. By the way, we don't like to call them models, it's exactly the same construction and materials as a full size engine, just smaller. So come on out there, let's hear about what you make in your spare time. I reckon we could be in for some surprises!


Stanley Challenger Graham




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stanley at barnoldswick.freeserve.co.uk
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Stanley
Local Historian & Old Fart


36804 Posts
Posted - 07/11/2007 : 17:04
It got worse (or better) later on.  I had just got on the last stage of finishing the third rod when there was a knock on the door and it was me old mate Joan Smith from Ellenroad calling in for a visit.  Needless to say, eccentric rods were shifted back down the agenda 'til tomorrow.  Plenty of time. I'm going to live for ever........


Stanley Challenger Graham




Barlick View
stanley at barnoldswick.freeserve.co.uk Go to Top of Page
A.J. Richer
Werebeagle


24 Posts
Posted - 08/11/2007 : 13:48
Series 1 80-inch - 1953 vintage


(on edit - I am just not getting this photo thing right..anyone want to message me the FAQ on inserting photos in forum entries?)

Well, it's not that some of us build things (though I do) but often times it's REbuilding things.


Witness the picture enclosed here - a 1953 Land-Rover Series I that served with the RAF as a crash tender vehicle. There's a long involved story as to how I ended up with this truck in my shed (and garage, and basement....) but suffice it to say as you see it here it had literally not turned a wheel in well over a quarter century. THe poor thing wa s literally rooted to the spot where I found it - behind a motor garage in Marlborough, New Hampshire.

We (the LR community I'm a part of) have literally NO idea how this truck came to be where it was - after it was surplused in the late 1950s (exact date not known) there is some speculation that it was part of a shipment of such vehicles that the MOD dumped over here back then - though we have nothing but anecdotal evidence.



Got any contacts in the MOD, Stanley? Laughing



And now we return you to your regularly scheduled program..."As the Crankshaft Turns...".



Alan




Edited by - A.J. Richer on 08/11/2007 1:51:08 PMSeries 1 80-inch - 1953 vintage

Edited by - A.J. Richer on 08/11/2007 2:02:15 PM

Edited by - A.J. Richer on 08/11/2007 2:03:14 PM


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Stanley
Local Historian & Old Fart


36804 Posts
Posted - 08/11/2007 : 15:40
Alan, keep trying with the pics, you'll crack it in the end.  Make sure it is JPEG, 72dpi and 8"max dimension.  It should post easily....


We have four eccentric rods......


Next job was to saw off a piece of 1 3/4" stock, square the end and turn down to 1 5/8" which is max diameter of the eccentric sheaves.  Then a bit of a rethink....  I'm always looking for the easiest way and the accepted way to make eccentric sheaves is to give them two centres, one for the sheave and one for the bore of the hole which fits on the shaft, then turn the metal round the bore on its own centre and finish up with a boss.  Nowt wrong with that of course but I'm going to be a lot more direct.  The fit of the sheave on the shaft needs to be accurate but isn't critical so I'm not going to bother with two centres I shall just cast a circle on the face of the sheave on the centre I decide on tomorrow after measuring the ports and drill the appropriate sized hole in the sheave and forget the boss.  It will work.......


Stanley Challenger Graham




Barlick View
stanley at barnoldswick.freeserve.co.uk Go to Top of Page
pluggy
Geek


1164 Posts
Posted - 08/11/2007 : 15:54
Photos need to uploaded to a webserver with a http:// address

They can be uploaded to OGFB here: 

http://www.oneguyfrombarlick.co.uk/pic.asp?cmd=8

But anywhere you can store pictures will do.  Once you have them on a server somewhere, you click on the little icon with the tree next to the smiley face. And put (cut and paste) the web address into the 'Image URL' box. 

thus: 



 

 

 

 

Whatever

 


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Stanley
Local Historian & Old Fart


36804 Posts
Posted - 09/11/2007 : 16:27

Nice quiet day and progress at the end of it.  We have four sheaves mated to the eccentric straps and popped ready for drilling for the shafts.  In theory, by measurement, the eccentric needs a throw of 3/16" off centre to give a valve travel of 3/8" which matches the ports.  It's not a bad idea to give them a bit more and I've made it 7/32" because there is always a bit of play in the eccentric, the wrist pin and in the valve itself because I don't make them the Stuart way, it will be free-floating and so there is always a chance of losing a bit of motion there as well.  So the extra 1/16" I've given the eccentric will not do any harm, indeed, after a bit of wear the valve will be doing exactly the 3/8" it was designed for.


Stanley Challenger Graham




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stanley at barnoldswick.freeserve.co.uk Go to Top of Page
Stanley
Local Historian & Old Fart


36804 Posts
Posted - 11/11/2007 : 06:45

All the sheaves drilled out to 5/8" for the single engines and 3/4" for the compound.  There's a curiosity in front of them.  It's a drill I picked up somewhere along the way that has been fluted right up the taper.  It was done to a normal drill after manufacture and I haven't the faintest idea why.  Only thing that comes to mind is that it might be useful for cleaning ot the morse taper?

The 5/8" holes just needed a reamer poking through them to get the right size but the 3/4 were a bit tighter.  I couldn't find a 49/64" drill even though I know I have one so I cheated.  I have a 25/32" drill that I know cuts under size due to wear so I wore it a bit more on th grinder and poked it through on the drill press.  Perfect......

Saturday teatime, all the sheaves fit the shafts and have been marked and popped for a tapping drill for two 3/16" Allen head set screws in each.  Before anyone starts going down the purist route and complaining about using allen screws, the pulley for the governor drive on the Bancroft engine (built 1919) is nipped on the shaft with a big Allen headed set screw, so there.......


Stanley Challenger Graham




Barlick View
stanley at barnoldswick.freeserve.co.uk Go to Top of Page
Stanley
Local Historian & Old Fart


36804 Posts
Posted - 11/11/2007 : 15:47

By dinnertime all the eccentric rods were drilled and tapped for two set screws each, the sheaves given a skim across the face to get rid of the fitting marks and assembled on their rods.  No fitting needed, they were all a nice tight fit but free to rotate.  Any slight stiffness will quickly rub in with a bit of wear.

Next job is to make and fit the valve rods.  Here are four blanks ready for fitting to the steam chests tomorrow.


Stanley Challenger Graham




Barlick View
stanley at barnoldswick.freeserve.co.uk Go to Top of Page
Stanley
Local Historian & Old Fart


36804 Posts
Posted - 11/11/2007 : 15:53
PS.  I quite like the eccentric rods made parallel instead of tapered, they look more functional somehow.  The lack of bosses on the sheaves is no detriment.  Again, I like them better done like this, they aren't fussy.  One thing is certain, no lost motion in the sheaves and straps so a long life.


Stanley Challenger Graham




Barlick View
stanley at barnoldswick.freeserve.co.uk Go to Top of Page
Stanley
Local Historian & Old Fart


36804 Posts
Posted - 12/11/2007 : 05:49

I thought I'd treat you to a better pic of the compound.  Quite pleased with the rods and it begine to look like an engine.....  I shall make the valve rods today and might thread them as well.  The valve rod guides can be bored and I was toying with the idea of making the steam and exhaust nipples but decided that if I did that I was only putting off the final stages on the cylinders and valves.  I shall bite the bullet and strip the cylinders off to drill and tap for the steam chests and valves and make the studs. Then make the valves and fit them.  When I lace up the cylinders again it will be final assembly, Packings in glands and sealing gaskets in place.  I have always used paper gaskets in my other engines but the faces on this one are accurate enough not to need them.  I have some Hylomar sealant that will do the job nicely.  I don't know whether you can still get it but it's a Rolls Royce specification and good stuff.  There is a good historical precedent for doing away with gaskets, The old railway companies had several accidents on the footplate caused by packing blowing out under load and at least one of them did away with packings and specified ground faces and sealant.  I can't remember which company it was but Crabby told Newton about it, he used to be a railway fitter.  Would you believe my mind is already turning towards other castings and the next job?  Silly really because there is still a lot to do.......


Stanley Challenger Graham




Barlick View
stanley at barnoldswick.freeserve.co.uk Go to Top of Page
Ringo
Site Administrator


3793 Posts
Posted - 12/11/2007 : 09:54
Yes you can still get the sealant Stanley.


Click for Skipton, United Kingdom Forecast
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pluggy
Geek


1164 Posts
Posted - 12/11/2007 : 13:35
Used to be a big fan of Hylomar for joints in car engines, it is good stuff.......


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Stanley
Local Historian & Old Fart


36804 Posts
Posted - 12/11/2007 : 15:12
I fell amongst thieves today.....  Productive morning making the wrist pin ends on the valve rods and fitting them to the clevis on all the connecting rods.  Walked Jack and bought a new book on Barlick on my way back.  Guess what I've been doing this afternoon......  Never mind, tomorrow we rip a cylinder off and start doing serious things to it.  Glad Hylomar is still available, this tube of mine must be twenty years old and it's still in good nick.  By the way, I did a little housekeeping job this morning....  I realised me tallow and graphite tin was getting a bit low and I had some hard beef fat in the fridge so I've topped it up with tallow and foliac No. 2 graphite....  I use it mainly for lathe centres.


Stanley Challenger Graham




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stanley at barnoldswick.freeserve.co.uk Go to Top of Page
A.J. Richer
Werebeagle


24 Posts
Posted - 13/11/2007 : 12:45
Not to divert you from falling amongst thieves (one of my favorite hobbies, actually) but when you get these engines done what are you planning on powering them with?

For the large one you're keeping  I figure you've got a  small boiler in your shop for special runs and just compressed air for quick work - but the two you're giving to your daughters are going to need something to run them.

 Model Lancashire boiler perhaps?

                         Alan 


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Stanley
Local Historian & Old Fart


36804 Posts
Posted - 13/11/2007 : 18:25
Not my problem Al, let the kids sort that out.  I'll get Doc to bring his compressir down when we are ready for commissioning and I might even as my mate John Ingoe who is in the boiler trade if he can find a little boiler to have a play with.  I'm not going to get into boilers, it's a trade on its own but if I did do it would be a tubed vertical like a launch boiler.  The best ones are very fast steaming and easy to maintain.

Not a lot done today, but all the valve rods are threaded and ready to fit.  I was going to start on the cylinders but Doc called in and we wasted the morning......  It's all his fault!


Stanley Challenger Graham




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stanley at barnoldswick.freeserve.co.uk Go to Top of Page
Stanley
Local Historian & Old Fart


36804 Posts
Posted - 14/11/2007 : 17:15





Haven't had a lot of time today but I've made a start and set everything up.  Much careful thought went in before I started drilling holes.......  Reday for some tapping and stud making.


Stanley Challenger Graham




Barlick View
stanley at barnoldswick.freeserve.co.uk Go to Top of Page
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