Member postings for jason moore 1

Thankyou all for the replies. Looks like email or phone then.

Yes i am paying by direct debit so i would like it sorted before the money is taken out of my bank account.

how do i unsubscribe to the model engineer?

can i do it online or do i need to phone someone?

my spelling is shocking! would be nice to be able to edit titles to avoid this sort of thing!

Edited By jason moore 1 on 13/02/2014 09:31:45

Edited By jason moore 1 on 13/02/2014 09:33:49

Have you done a fair bit of boiler work before? If so then you will have no problems. If not then i would consider the threaded stays as the easier option.

If your boiler is completely finished ie backhead and foundation ring etc already fitted, silver soldering the stays may not be a simple task for someone with limited experience.

The stays would normally be silver soldered before the backhead and foundation ring are fitted.

There is no reason why anyone should fail a threaded boiler stay. Many people are still using them especially in the smaller gauges.

Edited By jason moore 1 on 07/09/2013 08:55:06

You have got a good one there.I wish my ml1 was as accurate. More work required on my part i think!

Now that you have got your ml4 to turn diameters parallel try machining a bore to the same standard.

With the work piece held in the chuck or on a faceplate of course, not with a boring bar between centers.

If your lathe can do this you are as jammie as a jammie thing covered in jam!

An ml1 owner.

Edited By jason moore 1 on 19/04/2013 09:04:01

Craig,

Some will, some won't. If your design is so near to an existing design that it makes little difference you might get around it that way.

Some inspectors will give your design a fair chance,wanting to see drawings and calculations if you've gone for something a bit different, otherwise if fairly run of the mill you may be OK simply by quoting good examples of the sizes and thicknesses of material etc used in existing designs.

Some i am afraid though will only consider published designs.There is only one way to find out for sure and that is to ask.

I have not heard of the design and it would seem neither has anyone else,on here anyway.

Does not mean it don't exist though!

Fizzy, According to a book i have called "After Rocket the forgotten years" by H.M.Whitcombe. nine locomotives of the Rocket class were built, the last two being Northumbrian and Majestic. All of the class were fitted with wooden wheels.

Martin Evans did indeed produce drawings for Rocket,not for a working model though as the previous post has said. These are still available from Myhobbystore and Blackgates i believe.

Fizzy i have been toying with the idea of making the front wheels like the full size versions ie an iron hub with wooden spokes and felloes all held together by a steel tyre shrunk on. I have never before tried this sort of thing so i am sure some of our wheelwright friends out there could advise better than me.

Michael which test procedure are you refering to? The only tests i am aware any model boiler has to pass are the 2x hydraulic test and the steam test to check the safety valves etc. These would of course have to be completed to the boiler inspectors satisfaction, the same as for all newly constructed boilers.

Regarding the original post about Rocket i take the point and this thread could spiral into a debate about boilers which has been done before many times.

As far as the design of boilers goes i wont argue with Michael about how good or bad past designs have been, but if i or anyone else wishes to run a steam locomotive on a club track then a boiler inspector has the last word and is responsible for the issue of hydraulic and steam test certificates.

Errors in drawings is one thing,perhaps a measurment off or a decimal point in the wrong place but i do not believe there are many, if any boiler designs published that are dangerous. I know that in the old days of the Model Engineer all designs where checked by qualified persons,i am not sure about the situation now.

The boiler inspector in my club will only consider inspecting a boiler if it is to a published design.That way the design has more than likely been built before and found to be a good design, so as long as the workmanship is up to standard then the boiler will be a safe one.

I suspect that he does not feel qualified enough to sign off a new design or is being extra cautious in today's modern society or a little of both.

The problem as far as i am concerned with the boiler for a scale Rocket is the old published design argument. I know some of you out there have very understanding and competant boiler inspectors willing to sign off new designs as long as the sums have been done correctly,unfortunately in my club no published design means no boiler,simple as that.

The book mentioned in the other thread really is worth it's weight in gold in my opinion. Anyone who has an interest in Rocket really should not be without it. There is easily enough information in the book to build a very accurate model of Rocket,the sticking point in this country still being the boiler.

I did contact the gent in Australia who very kindly replied but of course as the rules for the construction of boilers are different over there this remains a problem.

I am not aware of a published design for Rocket,which i find surprising but i suppose people are dismissive of the passenger hauling ability even in 7 1/4" gauge.

I am still planning to build Rocket sometme in the future even if it can only be run in my own garden.

Thankyou all for the replies. Sid, i am aware of that book.I had it on my list to Santa but with no luck! Looks like i'll have to treat myself. I have heard glowing reports so constructing the model should be possible from the information contain in that one book alone.

Phil, I too have seen this man,s work and his posts on the other forum. If you are a visitor of that website i'm sure you will have read the long drawn out discussions on boiler designs and the australian boiler codes versus our published design hangups. Not something i would wish to start here.

As he is a boiler inspector for his club i may contact him direct to see if he drafted his own drawings for rocket.These if available may satisfy my club boiler inspector of the design's soundness.

Can anyone out there tell me if there has ever been a design published anywhere for Rocket? I would like to build a 7 1/4" gauge version but the question of the boiler and published designs rears it's ugly head.

I would be interested in the answer to this as well, also smokebox tubeplates without a flange.

Seems to be the norm in gauge 1 designs which are new to me having only built 3 1/2" gauge boilers till now.

mick H Thankyou for the replies and the pointer to the new boiler test code.I knew it was being revised but had not seen the finished article till now. Also Russell's reply explains the 0.5 litre and 2 litre figures i have seen quoted in the past.The new code makes for interesting reading.I shall digest it further at my leisure.

Surely though this is just a change as far as most clubs are concerned to satisfy their public liability insurance and not a change to the law regarding the classification of boilers of ths size?

I take it from the replies already that the figure that matters is 3 bar litres. Anything below this and it is outside of the PED regulations and down to clubs and their insurance company.

I have not read the forum discussion yet as i am not a member of the G1MRA or any of the forum groups,so if i am talking complete and utter rubbish please forgive me.

Can any one clarify for me the regulations regarding small boilers ie the gauge one project or Dee etc?

I have read conflicting imformation regarding pressure and bar litres.some saying 0.5 bar litres others saying 2 litres capacity. Are these boilers as i suspect not covered by the P E D?