Member postings for Peter Russell 4

Hi

Part 6 is now issued however there are areas that in my opinion need clarification.

Where did the boigi wheels come from.

In fig 42 the right hand sketch showing at U channel form need some extra explanation as to what it is.

in fig 34 there is clearly a inner ring but no explanation

Is this a commercial smoke box door ? if so where from

Fig 43 does not add up either so re examination may help

Regards

Pete

can i respectfully suggest that the articale in ME 4591 page 152 on is read and provides useful information to the novice boiler maker as to how to deal with it this would also apply to the tank used for the gas cylinder.

If your not feeling brave enough to make flanged end plates for the boiler and gas tank talk to GLR Kennions who can supply ready fllanged ends.

Regards

Pete

looking at the boiler in issue4591 it looks like the boiler shell bushes are threaded into the boiler - is this a good way to get the silver solder to run in or are they flangeless bushes so need to be threaded to keep them in place whist silver soldering?

Malcom part five just recieved today - have the gremlins struck again?

Suspension bracket fig 32/33 there is no mention of the width of the brass strip forming the bracket.

Regards

Pete R

The corrections Martin has made regarding the tab on the top of the frames. 25/05/2018 part 4 three errors

The magazine drawing ive got looks ok so what Martin is saying does not make sense ( sorry Martin its more than likely my brain!!!!)

Any advise appreciated

Regards

Pete

Jason Thanks for that however the bosses I refered to for the water gauge are square and as far as I can see College don't do square pb102 and I don't have the facilities to machine square bar from round or hex

Pete

Jason Thanks for that however the bosses I refered to for the water gauge are square and as far as I can see College don't do square pb102 and I don't have the facilities to machine square bar from round or hex

Pete

Jason Thanks for that however the bosses I refered to for the water gauge are square and as far as I can see College don't do square pb102

Pete

Further advice please on boiler construction

The two bosses for the water level gauge are shown as 3/8 and 9/16 bronze.

Do they have to be bronze as i am having difficulty locating these sizes.

If they have to be bronze there are so many different types and grades - what do I look for

What is the difference between phsophor bronze and bronze if any

Pete

Re the boiler end plates.

If these are 16swg should they be flanged or a tight fit

If flanged can any one give guidance as to how to produce the flange.

Presumably its well anealed copper formed over a round former with a hide mallet?

Pete

Martin

There is a reference to 16swg for the main boiler tube but nothing to say what the thickness and material are for the end plates.

I would guess the thickness is about 0.125 and they are copper-could you clarify please.

Pete

It appears that the material and thickness for the boiler end plates is missing