Model Engine Maker

Engines => Your Own Design => Topic started by: Fowellbox on August 09, 2017, 10:14:34 AM

Title: 1858 Burrell-Boydell Traction Engine (part Built)
Post by: Fowellbox on August 09, 2017, 10:14:34 AM
This model is in 1 1/2inch scale and is being designed from the original patent drawings. There are no castings, everything is machined from solid or fabricated.
The mechanism at the front is to allow the front of the boiler to be jacked up and down to keep the water in the boiler level.
The engine is put into gear by jacking up the rear of the engine so that pinions on the ends of the crankshaft, engage with gears on the inside of the rear wheel rims.

(http://s1.postimg.org/vizi84m4f/P1140805.jpg)
Title: Re: 1858 Burrell-Boydell Traction Engine (part Built)
Post by: simplyloco on August 09, 2017, 10:29:53 AM
Interesting indeed!
John
Title: Re: 1858 Burrell-Boydell Traction Engine (part Built)
Post by: Jasonb on August 09, 2017, 11:24:13 AM
Brian, have you got a few more pics of the front end as that looks to have come on quite a bit from the last photos that I saw? Don't think you had the tender on either or should that be "manstand" as there does not look to be a lot of water holding capability.
Title: Re: 1858 Burrell-Boydell Traction Engine (part Built)
Post by: Ye-Ole Steam Dude on August 09, 2017, 01:17:06 PM

Very nice job and would like to see more photos.
Thomas
Title: Re: 1858 Burrell-Boydell Traction Engine (part Built)
Post by: Fowellbox on August 09, 2017, 08:13:53 PM
Thank you all for your kind comments.
In answer to JasonB, below is a better picture of the front end showing the elevating mechanism.
The water tank is slung under the boiler and some of it can be seen in the picture.
The manstand and the towing assembly are fairly recent and are unfinished. I'm working on the cylinders at the moment and will then move on to the crankshaft supports and the rest of the motion.
Brian

(http://s27.postimg.org/h1j6ivtr7/Front_Aug_2017.jpg) (http://postimg.org/image/roczob1wf/full/)
free pic (http://postimage.org/)
Title: Re: 1858 Burrell-Boydell Traction Engine (part Built)
Post by: b.lindsey on August 09, 2017, 09:08:37 PM
Some beautiful modeling work there Brian.

Bill
Title: Re: 1858 Burrell-Boydell Traction Engine (part Built)
Post by: steam guy willy on August 09, 2017, 09:47:14 PM
Hi, Is this the same engine as the one displayed at the Forncett exhibition last year ??  Looking great....
Title: Re: 1858 Burrell-Boydell Traction Engine (part Built)
Post by: Dave Otto on August 09, 2017, 10:09:44 PM
Impressive work Brian!

Thanks for sharing, I'm looking forward to seeing more of this project.



Dave
Title: Re: 1858 Burrell-Boydell Traction Engine (part Built)
Post by: paul gough on August 09, 2017, 10:21:19 PM
Really good to see a model of an early example of these beasts. Will be following with interest. Regards, Paul Gough.
Title: Re: 1858 Burrell-Boydell Traction Engine (part Built)
Post by: Jasonb on August 10, 2017, 07:34:38 AM
That has progressed a lot since I last saw pictures.

Did not know it had a rise and fall on the front, have seen this on a couple of traction engines is is also used to help keep the boiler level when negotiating steel inclines?
Title: Re: 1858 Burrell-Boydell Traction Engine (part Built)
Post by: Fowellbox on August 10, 2017, 07:49:32 AM
Hi, Is this the same engine as the one displayed at the Forncett exhibition last year ??  Looking great....

Yes, this engine was at Forncett last year and will be there again this year on 1st Oct 2017.
Brian
Title: Re: 1858 Burrell-Boydell Traction Engine (part Built)
Post by: Fowellbox on March 01, 2018, 06:00:37 PM
I thought that I'd better do an update to this. Lots of work done (and redone) and the mechanism for raising the rear of the boiler, to put the pinions on the ends of the crankshaft into gear with the internal gears inside of the hind wheels, is mosly finished.
(for some reason cannot insert or attach a picture but will try again later)
Title: Re: 1858 Burrell-Boydell Traction Engine (part Built)
Post by: Fowellbox on March 05, 2018, 06:48:23 PM
Another try.
Brian

Well, the picture was there but now it's gone!
Brian
Title: Re: 1858 Burrell-Boydell Traction Engine (part Built)
Post by: Fowellbox on April 30, 2018, 04:57:02 PM
Another try at a picture of the rear boiler raising mechanism.
Title: Re: 1858 Burrell-Boydell Traction Engine (part Built)
Post by: Jasonb on April 30, 2018, 05:10:36 PM
Looks good Brian, what would have been the purpose of being able to raise and lower the boiler? I have seen a few traction engines where the front perch bracket was adjustable and it was said to be to keep the boiler at the best angle when going down hill so the crown sttayed covered in water.  I suppose it may also have beeen to help with ground clearance as your engine would have been best suited to working on soft ground.

J
Title: Re: 1858 Burrell-Boydell Traction Engine (part Built)
Post by: Fowellbox on April 30, 2018, 06:00:49 PM
Hello Jason and thanks for your kind comments.
The raising and lowering of the rear of the boiler puts the engine in or out of gear. Raising the boiler also raises the crankshaft with pinions on the ends and puts them in mesh with the internal gears inside the hind wheels.
If you are going to the Doncaster show you will get a better view.
Brian
Title: Re: 1858 Burrell-Boydell Traction Engine (part Built)
Post by: Fowellbox on February 03, 2019, 08:30:34 AM
It's been a long time since I last posted but much progress has been made.
The boiler is almost finished, the boiler inspector is happy with the work meaning that I can go ahead and assemble the last remaining parts before the first hydraulic test.
Brian
Title: Re: 1858 Burrell-Boydell Traction Engine (part Built)
Post by: pgp001 on February 03, 2019, 11:29:38 AM
Brian

That is looking excellent, I shall certainly be coming to inspect it at Doncaster.

Phil
Title: Re: 1858 Burrell-Boydell Traction Engine (part Built)
Post by: b.lindsey on February 03, 2019, 01:51:36 PM
Nice looking boiler Brian, hoping the hydraulic test goes as well as the inspection by the boiler inspector!!

Bill
Title: Re: 1858 Burrell-Boydell Traction Engine (part Built)
Post by: Fowellbox on April 27, 2019, 01:42:36 PM
Time for another update. The boiler is almost finished but needs a modification as the bosses for attaching the forward chassis moved whilst silver soldering.
I've come up with a better solution that I wish I'd thought of before.
This is a mock up showing one of the hind wheel guards in place.
The model is being made ready for the model exhibition in Doncaster (UK) in May.
(http://)