Office of Steam Forum for Model & Toy Steam Gas & Hot Air Engines

The Regular Stuff: Chat, Buy, Sell, Off Topic, etc. => General Discussion - Model & Toy Steam Engines – Stirling Cycle – Flame Lickers – Small Antique Originals => Topic started by: tenniV11 on October 18, 2021, 12:49:07 pm

Title: Re: Model of a Musgrave's non-dead-centre engine
Post by: txlabman on October 30, 2021, 09:22:00 am

Spectacular Arnold.

I bet it runs like a "Swiss Watch". :)

You have much better auctions in Switzerland than we have in the USA.

Title: Re: Model of a Musgrave's non-dead-centre engine
Post by: Dampfopa on October 25, 2021, 03:58:35 pm

Congratulations Arnold on the purchase of this unusual machine.👍

Title: Re: Model of a Musgrave's non-dead-centre engine
Post by: Tadfafty on October 24, 2021, 11:41:13 pm

That is quite something.

Title: Re: Model of a Musgrave's non-dead-centre engine
Post by: RedRyder on October 21, 2021, 02:59:18 pm

A great model for sure.

Paul Jacobs scaled and sold castings of the one at the Science Museum in London about 30 years ago.
It was a really nice model and I have seen just a few examples here at Cabin Fever and the Names show.

Gil

Title: Re: Model of a Musgrave's non-dead-centre engine
Post by: yussufhippo on October 21, 2021, 02:42:48 am

Thank you, Arnold.

One is tempted to assume that 2-cylinder engines always self-start, provided the cranks are not exactly at 180°, but in reality there will be piston positions where this is not always guaranteed.
Even my Sachsenmeister 4-cyl. ship's engine does not always self-start, but this is due to the very small cylinders (plus the inertia of four different reversing eccentrics...).

Title: Re: Model of a Musgrave's non-dead-centre engine
Post by: tenniV11 on October 20, 2021, 10:58:46 am

Quote from: yussufhippo on October 20, 2021, 02:43:46 am

Fantastic model.
Is there any advantage in using this kind of steam valve, I wonder? (Just curious, not meant as a critical comment, of course...)

Hallo Thomas - I either d'not know but some information are found online:

Musgrave_non-dead-centre_engine

I think the advantage is that the engine can stop and restart in every position -
the model has 2 similar cylinders and the original engines always where compound
which means high and low compression cylinders.
The model is very well machined and off high quality.
Greetings Arnold

Title: Re: Model of a Musgrave's non-dead-centre engine
Post by: yussufhippo on October 20, 2021, 02:43:46 am

Fantastic model.
Is there any advantage in using this kind of steam valve, I wonder? (Just curious, not meant as a critical comment, of course...)

Title: Model of a Musgrave's non-dead-centre engine
Post by: tenniV11 on October 18, 2021, 12:49:07 pm

I won this unusual steam engine at a Swiss online auction today.
It has two cylinders with rotary slide control. The castings and
plans are from Mr. L. Matrian (Germany). Brass material trough out.
The crankshaft has only one crank pin - but there is a triangle
connecting rod. Runs excellent on compressed air. Size 12,5/11" x 14"
Enjoy Arnold ;D

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