By continuing to use this site, you agree to our use of cookies. Find out more
Forum sponsored by:
Forum sponsored by Allendale Oct 11th

Drawings / Artcles

All Topics | Latest Posts

Search for:  in Thread Title in  
John Besley22/07/2012 18:26:49
49 forum posts

I am looking for an drawings or ME articles on building a small (mamod) sized traction engine possabily useing mamod wheels.

Has an serise been run in ME covering something like this?

JasonB22/07/2012 18:42:24
avatar
Moderator
16240 forum posts
1717 photos
1 articles

There is the Wells traction engine, you could fabricate the few castings that it used, bit of a build diary here I should be able to point you to online drawings in a day or two, they are down at the moment.

If you want something more realistic then Rudy Kouhoupt has a nice little case style engine that was in one of his "shop Wisdom" books again a good build on HMEM

J

Edited By JasonB on 22/07/2012 19:03:48

Colin G22/07/2012 21:00:49
24 forum posts

John, have a look at ME 4142, 32 March 2001 onwards. A 1/2in scale freelance traction engine was serialised by the name of ' Little Ben'. It could be scaled slightly to use Mamod wheels. It is a little more " model engineer " than a Mamod or the Wells traction engine and uses a single cylinder , double acting slide valve with slip eccentric. I have seen a completed model and it looks quite smart. If you look on YouTube there is a video of one running on air.

Colin G22/07/2012 21:01:52
24 forum posts

Try 23 March !! my error

John Besley23/07/2012 20:49:17
49 forum posts

Many thanks where can i find the back numbers from ME4142

JasonB23/07/2012 20:56:21
avatar
Moderator
16240 forum posts
1717 photos
1 articles

Some of it is in teh digital issues if you are a subscriber, failing that e-bay

J

Jim Guthrie25/07/2012 14:08:28
92 forum posts
5 photos
Posted by John Besley on 23/07/2012 20:49:17:

Many thanks where can i find the back numbers from ME4142

John,

I had a quick look at the traction engine in ME4142 and I don't know if you would like what you see. It is representative rather than realistic and is very similar to a Mamod style engine - the main difference being the "proper" slide valve cylinder. The boiler is a simple pot type and its outer sheet diameter is well over scale diameter.

I think the problem with modelling a working 1/2" scale traction engine is the boiler size - a half size Minnie would give a boiler diameter of 1.25" which doesn't give much capacity if you have an internal flue. You would probably need a very good feed pump arrangement to keep things going for a reasonable length of time.

Unfortunately I don't have all the articles in the series. i think it was around the time when the delivery of the ME was very spasmodic and I missed quite a few issues.

Jim.

John Besley25/07/2012 22:00:04
49 forum posts

Hello Jim

is it possabile to send me a copy of the article and plan so i can weigh it up, I am looking to build a "Mammod" type as this would fit in with my 7/8ths scale garden railway

Jim Guthrie25/07/2012 23:03:36
92 forum posts
5 photos
Posted by John Besley on 25/07/2012 22:00:04:

Hello Jim

is it possabile to send me a copy of the article and plan so i can weigh it up, I am looking to build a "Mammod" type as this would fit in with my 7/8ths scale garden railway

John,

I'll fire the scanner up and I'll need your email address. smiley

Interesting that your railway scale is not far off 1" scale, and a Minnie might be closer to correct, or a half size Allchin at 3/4" scale. smiley Cherry Hinds built a half size Allchin so no pressure there. smiley

Jim.

gedeon spilett26/07/2012 12:22:39
avatar
30 forum posts
6 photos

In his book "projects for the Unimat", Rex Tingey published drawings an building notes for a 1/16 scale traction engine "Sweet Sixteen", at large a reduced version of Minnie but the engine of his own valveless design. I did it many years ago, replacing the ugly cylinder by a plain reduced version of the minnie cylinder and valve gears, a awkward and minute job I remember..but very happy with the result. you can see a picture in my picasa album

Cheers

**LINK**

Geoff Sheppard26/07/2012 14:58:46
80 forum posts
1 photos

John

If you are looking for back numbers of 'M.E.', try The Toolbox at Colyton in Devon.

With regard to prototype designs of small traction engines, one starting point would be Henry Greenly's 1 inch 'Model Engineer' model. This had a boiler of 2 3/4 inch diameter, front wheels 4 inch and hind wheels about 6 inch. It was re-drawn by Greenly & Steel in 1956 and I have a feeling that someone has current rights to the Greenly & Steel designs. A search of the web may help.

Geoff

Geoff Sheppard26/07/2012 15:06:09
80 forum posts
1 photos

I now see that Maxitrack "Through Maidstone Engineering" supply drawings from the Greenly archive. They list the four drawings of the 1 inch engine.

Jim Guthrie26/07/2012 22:51:56
92 forum posts
5 photos
Posted by gedeon spilett on 26/07/2012 12:22:39:

In his book "projects for the Unimat", Rex Tingey published drawings an building notes for a 1/16 scale traction engine "Sweet Sixteen", at large a reduced version of Minnie but the engine of his own valveless design. I did it many years ago, replacing the ugly cylinder by a plain reduced version of the minnie cylinder and valve gears, a awkward and minute job I remember..but very happy with the result. you can see a picture in my picasa album.

 

I just found the original series of articles from the Model Mechanics magazine from this site. The five parts are here

**LINK**

**LINK**

**LINK**

**LINK**

**LINK**

 

.....and a follow up with an auxiliary hand pump

**LINK**

 

16mm:ft scale or, as near as dammit, 5/8" : ft.

 

Jim

Edited By Jim Guthrie on 26/07/2012 22:54:13

John Besley29/06/2013 07:58:59
49 forum posts

Almost a year on and I am back on this thread, the Little Ben articles - how many issues did this run to and what are the copy numbers so I can locate of ebay or elsewhere? starting with ME 4142

JasonB29/06/2013 08:10:23
avatar
Moderator
16240 forum posts
1717 photos
1 articles

One of the indexes gives 4142, 4146, 4146, 4150, 4152, 4154, 5156 for the build though possibel 4148 should be included.

There is also further mention of it in 4175 and 4184

 

This is one that was at Sandown

imag1009.jpg

Edited By JasonB on 29/06/2013 08:15:34

John Besley29/06/2013 18:23:14
49 forum posts

Hello Jason can you double check the numbers for me please;-

4142, 4146, 4146, 4150, 4152, 4154, 5156, 4148, 4175 and 4184

Is 4146 correct or should there be another one between 4146 & 4148 what about 4144 does this have Little Ben in it|?

JasonB29/06/2013 18:31:51
avatar
Moderator
16240 forum posts
1717 photos
1 articles

Yessorry the duplicate 46 should have been 44

If you search for "Littel Ben" here you will get what I did.

John Besley01/07/2013 22:53:26
49 forum posts

Hello Jason

Many thanks for the info I have now found a number of issues and they should be with me shortly, BTW do you know who built Litte Jen as shown in a prevoius post, do you or anyone have any contatc details?, I belive Bruce Robertson who wrote the articles had a web site for this, anyone know what the address was and where the drawings can be sourced from?

JasonB02/07/2013 07:47:44
avatar
Moderator
16240 forum posts
1717 photos
1 articles

I think the builder is given in the write up of the show in ME, I'll dig it out tonight. May also have been on the oppositions web magazine.

J

Nicholas Farr02/07/2013 09:52:21
avatar
1975 forum posts
936 photos

Hi Jason, my photo shows the entry card with the details on

Hope you don't mind me jumping in. There is another view of it from the front in my general photos album if anyone is interested.

Regards Nick.

Edited By JasonB on 03/07/2013 07:47:14

All Topics | Latest Posts

Please login to post a reply.

Magazine Locator

Want the latest issue of Model Engineer or Model Engineers' Workshop? Use our magazine locator links to find your nearest stockist!

Find Model Engineer & Model Engineers' Workshop

Support Our Partners
Warco
ChesterUK
Eccentric July 5 2018
cowbells
TRANSWAVE Converters
Eccentric Engineering
Meridienne oct 2019
Ausee.com.au
emcomachinetools
Allendale Electronics
Subscription Offer

Latest "For Sale" Ads
Latest "Wanted" Ads
Get In Touch!

Do you want to contact the Model Engineer and Model Engineers' Workshop team?

You can contact us by phone, mail or email about the magazines including becoming a contributor, submitting reader's letters or making queries about articles. You can also get in touch about this website, advertising or other general issues.

Click THIS LINK for full contact details.

For subscription issues please see THIS LINK.

Digital Back Issues

Social Media online

'Like' us on Facebook
Follow us on Facebook

Follow us on Twitter
 Twitter Logo

Pin us on Pinterest