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Member postings for Lathejack

Here is a list of all the postings Lathejack has made in our forums. Click on a thread name to jump to the thread.

Thread: Motorcycle General Discussion
17/09/2018 17:04:41

Tonight at 7:45 pm on Talkink Pictures channel is a short film with a young Charles Hawtry made in the 1940's entitled 'How To Refuel Your Two Stroke Motorcycle Engine'.

I wonder what smokey old two stroke he is riding.

Thread: What did you do Today 2018
15/08/2018 20:34:43

I've made a bit more progress on the full size Burrell. The brake drum was worn and pitted with corrosion in places, so it was mounted on the trusty Churchill Redmond lathe for a clean up.image.jpg...............A special cranked and beefed up cutting tool was knocked up to reach across the brake surface.image.jpg..............The surface machined up nicely, after the wide brazed tip parting tool had a small notch ground into its cutting edge to eliminate slight chatter.image.jpg

Thread: Alba 1A Shaper.
27/05/2018 10:55:30

I saw Nettlehams website a couple of years ago, I'm sure it's just a ghost site. I seem to remember they had an auction of all their stock, and the buildings were then demolished. I think the front of the original entrance still remains, and it's now called Marshalls Yard.

I seem to recall that the owners office was all decked out in wooden paneling from an old ship. They were pleasant people to deal with, and I really miss the place.

26/05/2018 22:09:31

Regarding the lack of a table support, I plan to build one in when I get round to fabricating a heavy steel chip tray. It would be handy to know the measurements of the original chip tray fitted to these early type Alba machines.

Years ago I used to visit Nettleham Engineering in Gainsborough, they were a machine tool dealer at the old large Marshall works. Every couple of months I would pop in to browse through their stock of used machinery, spread throughout the huge building. I still have an Elliot pillar drill and Smart & Brown lathe supplied by them. Shame they and the buildings are all long gone now.

I remember the rows of used, and seemingly unwanted, shapers. They always had quite a few Boxford models in stock.

26/05/2018 20:44:24
Posted by Mick Henshall on 26/05/2018 19:40:04:

Like it, my Boxford is taking down a 3"×3"× 2" Mild steel to make a rigid toolpost for the lathe to replace the compound, played around with depth of cut eventually tried 100 thou went fine until the scotch yoke bit that sets the stroke slipped, I hadn't tightened it up properly I think I'll stick to 10 -20 thou cuts,it ain't a race is it, good luck with yours


What a great idea, I have often thought about making a solid toolpost to replace the topslide, particularly for large boring bars. Now you've mentioned it, I might as well use the shaper to hog it out of a lump of steel rather than use the milling machine.

26/05/2018 18:15:51

..A couple of months ago I was given this Alba shaper, it would have been rude to refuse it.

The rather dodgy position of the motor and the unguarded drive belts will need altering. The cast iron chip tray that sits between the upper and lower main castings is missing, so a new steel one will be fabricated at some point. For now it has just had stuck parts freed off, some of the surface rust removed and a good oil up.

image.jpgimage.jpg.................It is located at my place of work, alongside the Burrell Showmans Engine who's flywheel can be seen in the background.

After machining a couple of test pieces it was soon put to work machining a new key for the Burrells steering worm wheel. I had never used a shaper before, and found this machine to be a delight to use.

It has a facility for auto rise and fall of the table, but the single ratchet mechanism has to be swaped over from the cross feed shaft. The factory illustration shows two ratchet mechanisms geared together drawn in, but I have not seen any with two ratchets fitted. So another future job will be to make another drive ratchet assembly and a pair of gears to mesh them together.image.jpg

Thread: What did you do Today 2018
23/05/2018 22:35:58
Posted by martin perman on 23/05/2018 20:49:47:


May I ask the name of the engine.

Martin P


The engine was partly dismantled before I started on it. The canopy and all cladding was removed and stored away, so I haven't seen a name plate for it, I will try and find out when I return to work.

Another chap has been in to work on the boiler, and stripped out all the old fire tubes.image.jpg.

..................The engine, complete with temporary rear axle, was then towed across the works to have the boiler flushed out with the jet wash.image.jpg

23/05/2018 20:11:58

I've been doing a little more restoration of the full size Burrell Showmans Engine. After drilling through the centre of the flywheels six inch long key, then using the Oxy/Acetylene torch to burn it away, the four feet diameter flywheel was finally separated from the crankshaft.image.jpg

..................The crank was then mounted on our large old lathe, the worn and scored main bearing surfaces were then skimmed and polished up. While in the lathe all the old paint and rust was removed, it's amazing what dirt and filth some people will paint over.image.jpgimage.jpg

....................The 78mm big end journal was in a bad state, badly scored and worn barrel shaped with a diameter measuring 1.3mm larger in the middle than the sides. It had also worn into the large radius in each corner. It could not be set up in this lathe to machine the crankpin, so I was all set to crate it up and have it sent away for regrinding. But in the end I decided to have a go at it with the crank mounted as shown.image.jpg.

....................After several hours work using hand tools and strips of abrasive tape the big end was restored to a smooth, parallel and round journal, quite tricky when rotating with a 12 inch stroke.image.jpg

28/02/2018 21:57:39

Over the last several months, including today, along with other jobs I have also been working on the full size engines at work.

One task was to cut out and replace the worn out thread in the top of the firebox crown that takes the fusible plug. I had to do this job on this Burrell Showmans and the Burrell Roller engines. I used my excellent Chinese made 200 amp Tig welding set, which, as on other occasions, ran for hours on end without trouble.

image.jpgimage.jpg..........I first machined up a couple of flanged threaded steel plugs, then used a Lenox hole saw to cut out the worn out section around the original threaded hole in the top of the firebox.image.jpg..........The beveled hole is notched either side to allow the new flanged plug to be popped through into the boiler and to drop flat and seat on its flange. The V weld prep and gap wil hopefully give a strong reliable weld.image.jpg...........The finished job, it wasn't pleasant working in the cramped confined space, particularly as all the work was overhead.image.jpg............Another job was to bore out the rear axle bearing castings on the Burrell Showmans for the fitting of new bushes. I did this job on our large old Churchill Redmond flat bed lathe.image.jpg............The rather slim long boring bar has been reinforced along its length, it then cut cleanly without any chatter.image.jpg...........I also did a trial fitting of the steering drum worm I made. The steering chains wrapped around it ok and the steering worked fine, I was a little worried it might not work too well, so it is a relief it seems to be ok after all that work to make it.image.jpg

Thread: 1 Inch Minnie Boiler. Scrap or not?
13/02/2018 22:19:20

Thanks for the photo Richard, I'll search through all the other parts to see if anything else compares to those on the Greenly engine.

Here are some more views of the boiler.



13/02/2018 20:25:34

Thanks Jason, so thankfully it is not straight for the scrap bin just yet.

And you are right, I have just noticed Greenly And Steel in the corner of the drawing. The box of parts had other smaller containers of parts with Minnie writen on them.

And thanks Lofty.

It is a relief to know from you both that it is an accepted way to construct a boiler.

When I get the time it will be interesting to find out what other goodies are lurking in the box of parts.

Edited By Lathejack on 13/02/2018 20:29:54

13/02/2018 20:04:19

Today I was given a few boxes of model engine parts by a friend, they belonged to his late Grandfather.

Amongst them were these parts, for what we think is a 1 inch Minnie traction engine. It all looks very well made.

image.jpg..........But my heart sank when I looked on the underside of the boiler and saw the joint along it. I am not a boiler expert, but surely it shouldn't have been made this way, I hope I am wrong.

His Grandfather had somebody make the boiler, but we have no idea who.

It obviously has a plate riveted and soldered inside overlapping the joint, but I have never seen anything like it before. So is it really just scrap?


Thread: Why ACME threads on leadscrews?
03/12/2017 21:21:29

The 918 and 920 are definitely copies of the belt drive Emco Compact 8. Apart from minor details they have the same looking headstocks, bed castings, tailstocks, saddles, cross slides and topslides. They also have the same long lever behind the headstock for slackening and tensioning the drive belt. The Far Eastern machines also have the addition of the screw cutting gearbox and a longitudinal power feed built into the apron. 

Andrew mentioned the Emco Compact 8e does have Acme feedscrews. The Compact 8e is made in the Far East and is a little different to the original Austrian Compact 8 and the 918 & 920's.

Edited By Lathejack on 03/12/2017 21:26:06

Edited By Lathejack on 03/12/2017 21:27:49

03/12/2017 19:17:39

The Chinese 920 & 918 lathes are copies of the Austrian made Emco Compact 8 lathe, so it would be interesting to know what thread form was used on the Emco original.

I don't think the Chinese made machines are particularly at fault for using a standard type thread form on some models. Some years ago I was examining a new Warco WM280 lathe, these are based on the much more expensive Wabeco D6000 lathe. Looking under the Chinese made 280 machines topslide I noticed it did not use an Acme or square type thread, just a normal thread form. So I immediately walked over to the Wabeco D6000 and saw that it also used a normal thread form, the same as that used on the Chinese copy.

Thread: Bench Vice
09/09/2017 22:06:11

Well I have had one of the vices in ChrisB's link for several years, this one is badged as a Clarke. They are well made and also have vee and pipe jaws, but the anvils are not hardened steel as suggested in the link, just part of the cast iron body.

They are certainly larger than 3 inches, they have a 5 inch opening with 5 inch wide hardened jaws. The 75mm throat refered to in the link is the measurement from the top of the jaws to the top of the circular ram. The link does mention a 100mm version.

But as already said, they are really light to medium duty, but we do have one at work that has taken a bit of a battering and hasn't broken yet. Certainly for medium to heavy work and metal bashing you can't beat the standard fixed type bench vices refered to by others. Mine is backed up by a larger Record vice for when the going gets tough.




Edited By Lathejack on 09/09/2017 22:10:34

Thread: Wilesco D100 E
16/08/2017 00:16:37

That's a nice sweet running little Wilesco engine you've built Levent, the boiler is an attractive looking unit as well. Did you get the little Dynamo from Forest Classics as well? I think it won't be too long before you have built a bit of a collection of them. Any idea which engine your next one might be?

The modified engine by Henry also looks good. I like the little pressure guage and displaced lubricator, I wish I had thought of fitting them to this Wilesco D409 Showmans engine I modified a couple of years ago, also from the excellent Forest Classics.

Some of the main modifications I made to it were fitting the more realistic and heavier Mamod wheels. I then made the bronze wheel rims, brass twist canopy supports, facia boards, smoke box with door and front axle assembly. After buying it and then modifying it I then gave it away as a gift for someone's 60 th birthday.



Thread: SC3 gib strips
29/07/2017 23:35:20

The gap down the side of the gib strip bearing against the gib adjusting screws shouldn't cause any problems, as long as the bearing surface of the gib strip fits snuggly against the cross slide dovetail.

But on your first photo, gib bottom left hand corner, the bottom edge of the gib strip appears to be fouling the root of the crosslide dovetail. The relief groove in the bottom of your crosslide dovetail seems a bit shallow, this together with the sharp bottom edge of the gib strip maybe preventing the gib from seating correctly on the bearing surface of the dovetail.

If you remove the sharp edge from along the gib and leave a slight flat there to give some clearence between it and the root of the dovetail it might improve things.

Edited By Lathejack on 29/07/2017 23:36:05

Edited By Lathejack on 29/07/2017 23:38:48

Thread: What Did You Do Today (2017)
29/07/2017 22:54:26
Posted by John Stevenson on 29/07/2017 20:18:36:
Hope you have Doune it the right. Hand 🖐️

Yes before bending I checked that, then double checked and finally triple checked. Still worried it was correct while bending it, and was then convinced it was the wrong way round when completed.

29/07/2017 19:40:15

I have been working on repairing and restoring this Burrell Showmans Engine at our works. It was originally just a working engine, and was converted to a Showmans many years ago.image.jpg .

......One job was to make a new steering drum, with a spiral design to locate the steering chains as they wrapped around it. The one on the engine was just a plain fabricated tube with flanges at each end. I wanted to try and produce one similar to the genuine original cast iron spiral design found on some of these engines.image.jpg.

......So in two stages a total of almost 4 metres of 30mm diameter solid black bar was heated up with the Oxy/Acetylene torch, and steadily wound around a 125mm diameter thick walled steel tube.image.jpg

.......The 30mm bar has a pitch of 31/4 inches, about the same as the genuine item.image.jpg

.......The bar ends have been trimmed and blended in flat, it is quite a weight already, and there is still plenty more to do to it. The spiral bar will be fully welded all the way round.image.jpg

Thread: Ebay chuckle
11/06/2017 23:50:40

I think the EBay sellers comments are quite fair. He isn't just slagging off cheap Chinese machinery, he is just describing it like it is, so where it is made and how much it cost are irrelevant.

But I do think he has overlooked the drills possible real potential. In some of his photos the drill is sat on the ground close to a door, and appears to be preventing the door from closing fully. So if he had given it some thought, and moved it a little further to the right, I am sure that the drill would be at least good enough to make an excellent door stop.

Edited By Lathejack on 11/06/2017 23:51:40

Edited By Lathejack on 11/06/2017 23:53:12

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