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Member postings for Ian Roberts

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

Thread: Myford/Drummond lathe Mod's and information
19/05/2017 09:43:41

Strip of gaffer tape is the quick and easy solution to the hole in the bed, unless you're throwing large bits of metal about.

Thread: Derby Industrial Museum
16/05/2017 11:47:10

Surely it's not rocket science to appoint someone interested in industry and displaying artefacts to run an industrial museum?

The Silk Mill had an 1865 Handyside winding engine, made about 100 yards upriver, and used at Morton colliery in Derbyshire. The sort of thing any right-thinking curator would sell his grandmother for.

Yesterday it was loaded onto lorries to go to a museum in Wales.

Thread: missing lathe parts on a drummond lathe? ID please
01/01/2017 14:24:22
Posted by Bazyle on 01/01/2017 12:57:51:

What you have is a 'pre-B' which of course never needed a designation before they came out with a new design but for some unknown reason nobody ever calls them "A".

That's because a model A is something else entirely, it's the early type roundbed, which usually gets called a roundbed rather than an A.

Thread: Myford change wheels
30/12/2016 11:04:24

its 73 and 46 that Drummond used. In general, selection of changewheels is not some mystical process, but was done by someone who had learned basic maths.

Thread: Stirling Single
20/12/2016 15:23:10

H P Jackson did drawings in 1945 or earlier, for a 3 1/2" Stirling Single, and may have done them for 2 1/2" as well. If so, Blackgates may have the drawings.

Thread: A couple of engines to identify
17/11/2015 11:46:31
Posted by Graham Flavell on 16/11/2015 18:18:54:

Ian,

David is correct it is an early version of the 10V. Here is one I restored a few years ago. It would be nice if someone could tell us when this design was replaced by the current design with a trunk.

Graham

1932. Another Ian.

Thread: wyvern
02/10/2009 15:48:47

Hadn't considered the axial movement possible with taper cotters. I can see it would be useful on line shafting, but am not convinced of its benefits on an engine.
I found the carb drawings in my local library, that wasn't the question. I was surprised it was regarded as peripheral, both in the original article and the reprint.
11/09/2009 14:30:25
In the article reprinted in The Best of ME vol. 1, I believe the lower drawing on page 40 is incorrectly captioned, it is the inlet valve housing.
Details of the carburettor and ignition system are treated as peripheral, but the engine won't run without them. Are most stationary engines whether steam or i/c regarded as static ornaments?
In both this and the Centaur design the flywheel is secured by a tapered split collet. Why not just turn a taper on the crankshaft?
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