| 8_10 Brass Cleaner |
28th September 2010 02:38 PM |
Quote:
Originally Posted by boilerspecter
(Post 131087)
if mr garnet is fitting the welded firebox and not the properly formed one, I am amazed, that firebox is tottally unacceptable . arwell it takes all sorts
|
Hmm,
I have ofter wondered about these fireboxes after I learnt of the 4CD sold at Kivells had its example removed.
When you ask the right questions to the right people, it seems there are a number about so fitted. That is square corner welded Garrett style fireboxes without the front to back crown.
Avelings fitted similar fireboxes to the late type rollers they produced, and quite a few of these have been reboxed similarly.
As a engineer who deals with section properties of structural steelwork, strikes me that the form as in Mr Garnett's firebox is a pretty stiff structure. After all the crown's role is to transfer the force on the projected plan area of the firebox onto its side plates. I suspect that if someone were to spend a bit of time doing the sums it should all stack up.
The Garrett 'crown' would help a little, but all that would mean is that you could probably use a thinner plate for the same job. |
