That's Wrecked It

Well, if there was any doubt as to whether the old boiler was knackered there isn't any now. As part of the design process there is the need to see inside the boiler so some windows have been cut.

1.

Oxy Acetylene was used to cut a number of windows

2.

Originally the firebox was just to have two little holes.

3.

These were easy to cut

4.

The two small holes revealed some surprises

5.

So a larger picture window was cut

6.   In this view you can see key components in the window - from the bottom these are: -

            Inner Firebox

            Longitudinal Stay

            Girder Stay

            Another stay

            Hanging stays

7.

What you can't see in the last view is that there is a thickening plate between the hanging link brackets and the outer firebox

8.

The lower stay goes the length of the boiler and just passes through the backhead. The upper palm stay runs from the bracket you can see to a bracket in the barrel just in front of the firebox. [see pic 11]

9.

There are palm stays at the front too. One end fastens to the brackets on the inside of the tubeplate

10.

Whilst the other end fasten to a bracket riveted to the inside of the barrel about two foot back from the tube plate.

11. This view is inside the boiler looking back across the top of the firebox. In the foreground is the palm stay bracket and stay mentioned in [8]. The hanging stay and the girder stays can also be seen. The rod top left is the regulator control rod connection the handle to the valves

12.

A not very good view of the palm stay bracket. This was taken by holding the camera in the boiler at arms length

13.

That palm stay bracket again with the tubes below it

 

 

Shortly the new boiler page will discuss some of the features of the old and new boiler.