Author Topic: Strictly.... “ Hot Air “  (Read 71628 times)

Offline Chipmaster

  • Full Member
  • ****
  • Posts: 988
Re: Strictly.... “ Hot Air “
« Reply #90 on: February 23, 2018, 02:14:13 PM »
"Whilst supping my mug of “ roseylee “ I was thinking about a couple of other hot air engines that you rarely see like Hayward Tyler and Bailey. Has any member here built or scratch built any models ?
Cheers Graham."

Hi Graham, someone has scratch built a model of a Bailey engine, see below. By the way I heard you on BBC Radio 4 at 11.00 this morning.

I took a few pictures of a Bailey engine held in Birmingham's Reserve Collection which I visited a few years ago. It was impossible to get a good picture.

Bailey Lehmann 1882 hot air engine [1] by Andy, on Flickr
Bailey Lehmann 1882 hot air engine [2] by Andy, on Flickr
Bailey Lehmann 1882 hot air engine [3] by Andy, on Flickr
Bailey Lehmann 1882 hot air engine [4] by Andy, on Flickr

In 2015 this superb model of a Bailey engine was displayed by the builder at the Stirling Engine Get Together at Kew Pumping Station.
P1030710 by Andy, on Flickr
P1030711 by Andy, on Flickr
P1030713 by Andy, on Flickr
P1030714 by Andy, on Flickr

This is a video of the model
Model Bailey Hot Air Engine at Stirling Engine Rally, Kew 2015 by Andy, on Flickr

Andy

Offline Alyn Foundry

  • Full Member
  • ****
  • Posts: 1653
  • North Wales, Great Britain.
Re: Strictly.... “ Hot Air “
« Reply #91 on: February 25, 2018, 07:06:58 PM »
Many thanks for those pictures Andy.

Meanwhile, back in another area of what became an icebox....

Lapping of piston to cylinder using the material that makes the piston yoke.

Closeup of milled yoke.

Cylinder, piston and yoke.

Cheers Graham.

Offline ettingtonliam

  • Full Member
  • ****
  • Posts: 129
Re: Strictly.... “ Hot Air “
« Reply #92 on: February 27, 2018, 02:49:48 AM »
Hi
I think I've managed to attach some photos of my Robinson casting set. If you can't see them, I'll try again.

I've got some queries about the linkage mechanism. The drawing shows pin diameter of 0.3125" (5/16") for all the linkage pins except the one on the big end which is dimensioned as 0.250" (1/4"), even though diagramatically it is drawn as larger than the others. The bosses on the castings are barely 3/8" dia, so putting a 5/16" hole in them  will pretty much destroy them. Should the pins be, in fact, 3/16" dia, and 1/4" (or even 5/16") for the big end?

Richard

Offline Alyn Foundry

  • Full Member
  • ****
  • Posts: 1653
  • North Wales, Great Britain.
Re: Strictly.... “ Hot Air “
« Reply #93 on: February 27, 2018, 11:11:25 AM »
Hi Richard.

The pictures are there,  thanks.

Do you know what age the castings are? The drawing was later marked with an erratum as the pins were labelled as 5/16” when, indeed they should read 3/16” !

I hope the recent pictures Andy posted will help you get started? I’m hoping to be finished with my contract for the Anson Engine museum by the end of the week, weather permitting.

Cheers Graham.

Offline Alyn Foundry

  • Full Member
  • ****
  • Posts: 1653
  • North Wales, Great Britain.
Re: Strictly.... “ Hot Air “
« Reply #94 on: February 27, 2018, 01:28:50 PM »
Taking shape.

Offline Bertie_Bassett

  • Full Member
  • ****
  • Posts: 152
Re: Strictly.... “ Hot Air “
« Reply #95 on: February 27, 2018, 01:50:30 PM »
looks good, and i see you are still maintaining the special coating  :ThumbsUp:


may have already been asked but would one of these engines work on top of a wood burning stove? the blanking plate on the top of mine looks like a perfect place for one driving a small fan. could even drop the hot end into the fire itself to aid things.  might all get too hot and equalise too quickly though ?
one day ill finish a project before starting another!
suffolk - uk

Offline Alyn Foundry

  • Full Member
  • ****
  • Posts: 1653
  • North Wales, Great Britain.
Re: Strictly.... “ Hot Air “
« Reply #96 on: February 27, 2018, 04:28:42 PM »
Hello Bertie.

A former customer managed to run his Robinson on a single “ nightlight “ candle, his engineering was impeccable!

Every moving part had been polished and he specified a particular lubricant, the name escapes me but something like “ Formula 1 “ is ringing a bell?

Our engines will run for hours on end so long as the water is replaced and I’m almost 100% certain that they’d drive a fan sat on top of a wood burning stove.

Cheers Graham.

Offline ettingtonliam

  • Full Member
  • ****
  • Posts: 129
Re: Strictly.... “ Hot Air “
« Reply #97 on: February 27, 2018, 04:38:57 PM »
Graham
The drawing with my castings is dated 1991, and the envelope containing it has the Alyn foundry address in Wrexham, and a telephone number which doesn't start '01' I can't now remember when the '01' prefix to a number replaced the earlier '0' prefix.
Were there any other changes to the early drawing?

Richard

Offline Bluechip

  • Full Member
  • ****
  • Posts: 1007
  • Derbyshire
Re: Strictly.... “ Hot Air “
« Reply #98 on: February 27, 2018, 04:54:24 PM »
Richard

Numbers changed '95 -ish. Can't remember the exact date, know I was in Stuttgart at the time and was baffled as to why I couldn't dial UK .

IIRC If you dialled the old code in UK a recorded message told you to redial with the  '1' in, but 'Cellnet' ??? on mobile didn't do it for out of UK calls.  :headscratch:   Just said unknown number  ... helpful barstewards ...  :rant:

I think they completely changed some codes like Coventry ??

Dave

EDIT Found it. 16 April 1995 ...

« Last Edit: February 27, 2018, 05:03:00 PM by Bluechip »

Offline Alyn Foundry

  • Full Member
  • ****
  • Posts: 1653
  • North Wales, Great Britain.
Re: Strictly.... “ Hot Air “
« Reply #99 on: February 27, 2018, 05:42:26 PM »
Hi Richard.

Well it’s definitely an early kit..... Ffordd Lerry or The Old brewhouse?

Regarding the drawings they were accurately drawn at full scale enabling you to take measurements directly from the paper!

Cheers Graham.

Offline ettingtonliam

  • Full Member
  • ****
  • Posts: 129
Re: Strictly.... “ Hot Air “
« Reply #100 on: February 27, 2018, 11:01:09 PM »
OK, if you say so Graham!
I was firmly brought up in 'do not scale' drawing offices. Not that we didn't, sometimes, when no one was looking.
I'm impressed with dimensioning to 4 places of decimal though. Have to up my normal standards to build the Robinson now.

Richard

Offline Alyn Foundry

  • Full Member
  • ****
  • Posts: 1653
  • North Wales, Great Britain.
Re: Strictly.... “ Hot Air “
« Reply #101 on: March 01, 2018, 01:10:46 PM »
Oy, Oy....

Wot's going on ere then?

 ;)

Offline Jasonb

  • Full Member
  • *****
  • Posts: 9463
  • Surrey, UK
Re: Strictly.... “ Hot Air “
« Reply #102 on: March 01, 2018, 01:16:13 PM »
Are you breeding them?

Think I may have a puppy here ;)
« Last Edit: March 01, 2018, 01:19:59 PM by Jasonb »

Offline crueby

  • Full Member
  • *****
  • Posts: 18554
  • Rochester NY
Re: Strictly.... “ Hot Air “
« Reply #103 on: March 01, 2018, 01:20:28 PM »
Are you breeding them?

Think I may have a puppy here ;)

The one on the right is a canibal - eating the one on the left!   :o

Offline Alyn Foundry

  • Full Member
  • ****
  • Posts: 1653
  • North Wales, Great Britain.
Re: Strictly.... “ Hot Air “
« Reply #104 on: March 01, 2018, 01:51:15 PM »
Are you breeding them?

Think I may have a puppy here ;)

Hi Jason.

You'll have to teach me how to do that, there drawing malarkey!

On a serious note your choice of material for the platform will need carful consideration.... Aluminium really is a " No No " far too conductive for long runs.

Don't forget that we're hoping to produce a small run of 6 sets later this year, once I can get my car started.... An already faltering auxiliary electric Diesel pump has now ceased to work due to the cold weather, argh.... Stranded.

Cheers Graham.

 

SimplePortal 2.3.5 © 2008-2012, SimplePortal