Member postings for Richard Parsons

Be careful of rods like Silfos, Copperflo etc. there was an article in M.E. in the 80s/90s which discloser that these rods are attacked by sulphur.

Edited By Richard Parsons on 09/12/2010 06:37:39

I am in my workshop and a thousand miles away,

Matey! are your lathe tools cutting well?

Wishing to be in England, but dreading Heathrow’s Hell

And snow is forecast for the airport here as well.

I will look forward to seeing all the pictures in the ME sitting my Kandelo with a noggin or two of ‘Forralt Bor’ mulled wine

As I remember Lignum which were used as the thrust blocks on the propeller shafts. It was quite heavy. Lignum is very hard, self lubricating and has good wearing properties.

My Lorch which is similar to the Boley-Linen uses normal gib strips in its compound/cross slide which is fixed by a clamp around or under bed.

Gland packing. Get some COTTON string (none of your old plastic stuff) pop it in a small pot with a load of Molybdenum die Sulphide based grease which has had a few drops of STP or Wynns oil additive stirred in to it.

Get the cotton string well impregnated and use. I have made several such stuffing boxes with success.

Bakers soldering fluid.  Get some COTTON cloth (it must be cotton - not a union of cotton and manmade fibre) make up a pad and hold it in a twist of iron wire (not a plated type). Use it to apply the baker's fluid. I learned this trick from a panel beater who used to fill the soft curves on real motor cars at Pressed Steel.

Cotton has an ignition point of about 407°C. this rises when the pad is soaked in a water based fluid like Bakers

Peter,  I cut holes in the floor where my heavier machines were to go.

 I boxed them in and poured in concrete pillars (duly levelled) complete with lengths of 10-12 mm studding ready to take the bolting plates etc. It is a good idea to underlay the wood floor with sheets of polythene and building insulation boards.  This stops rising damp and keeps the floor warm

Regards

Dick Parsons

PekkaNF

I have the same problems over here in Hungary. Most of the stuff is metric except for the old Russian Army type equipment where the threads are UNC or UNF (SAE). The spanners they used are Metric A/F, -but not always. Sometimes the heads are the old Whitworth sizes. 

There is no need to be dyslexic in inch units. All you need is a number box (a calculator – well it is a box full of numbers)

Metric to inch – there are more metric numbers in a size than inch- (1” is 25.4mm). Multiply the inch size by 25.4 to get metric. To get inch from metric divide the metric by 25.4.

To convert threads per inch (TPI) to metric is a little trickier. Divide 1 (one) by the TPI and multiply by 25.4. To convert Metric pitch to inch TPI just divide the metric pitch by 25.4 and divide 1 by the answer.

Inch numbers like 23/64ths or 9/16ths just divide the top (23 or 9) by the bottom (64 or 16) and you have the inch sizes in decimals.

To do the business and cut metric threads on an inch lead screw (8TPI) you will need to get metric conversion set from Myford. This will depend on the type of change wheel set the lathe comes with.
If it is the manual change type check what is there in the lathe’s inventory as it may have them. It is also a good idea to check with Myford about the ‘Extras’ you need
If it is of the “Quick Change” type you will need these and a special ‘Banjo’ –change quadrant:-

Change wheel
 No Needed
 
63 T
 1
 
60T
 2
 
55T
 1
 
50 T
 2
 
45T
 2
 
40T
 1
 
35T
 1

Edited By David Clark 1 on 01/12/2010 13:17:22

Hi all. The problem with end mills is that they have a hollow centre.  This limits their depth of cut in a slot.  Slot drills do not. The cutting edges on slot drills are ‘asymmetric’ about their centre. This can be tricky to re-grind.

Hi David,

I cannot help with the three locos you have mentioned, but I have the set of a little known 1 gauge? loco by “Ole Curley”. It is a Pacific and is called Sir Morris de Cowley. (I used to live there). I also have several little pot-boilers that LBSC used to design in time to be made for Christmas.  They can come in the same package.

If you want them I will pack it up and send it

Best Regards

R.F. (Dick) Parsons

I have looks at this little Belgian Locomotive with interest and am working on trying to simulate the triple flue. 

I was searching for Hungarian Locomotives (gőzmozdony in Hungarian).  In my rummaging for Brotan Deffner boilers which I wanted for something else I am working on, I came across these two little beauties, You can find the originals in Wikipedia but some of the others seemed to been designed by Emmet after a ‘night on the tiles’

They both seem to  have a type of Brotan Deffner boilers which is a sub varient of the Yarrrow See ‘A practical approach to boiler making’[i] Mr Holland

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[i] Model Engineer Vol 205 No 4389 – 22^nd October – 4^th November 2010

Edited By Richard Parsons on 27/11/2010 10:35:17