Osbert Chadwick Esq., C.M.G.
250
4/12/1906
the Pipe bursting at the point of fracture, neither is there any reason to suspect the quality of the metal as being the cause of the burst.
...$.04 2 LIST NI buy an
21.
My attention was then directed to the thickness of the metal of the burst samples of 5" Pipe returned from the Colony, and measurements were taken at several points, the following being the averages obtained:-
5044 ant
Average thickness of 5" Pipe marked No. 2 0.233 inch
3 0.197 inch
22.
You will note from the above that there is considerable difference between the thickness of metal of the two 5 inch Pipes.
23.
In view of the differences in thickness, and also of the fact that one of the Pipes is Lap-welded and the other Butt-welded (see clauses 13 and 14), and further that other variations in dimensions etc., exist, I arrive at the following conclusions:-
(a) That the 5" Butt-welded Pipe Marked No. 2 (0.233" thick) is an ordinary trade Pipe, which may have been purchased locally from Merchants in Hong Kong or otherwise, but which certainly never formed part of any bulk of Pipes which came under my inspection. I give below a copy of a letter received from the Contractor on this point:-
"It is absolutely impossible for a 5" Butt-welded Pipe to have been sent from my Works. There has not been such a thing in my possession for very considerably over 20 years. I can't remember seeing one made.
(b) That the 6" Lap-welded Pipe marked No. 3 (0.197" thick) is probably one of the Pipes shipped under Req. 8 in the year 1900 for a test pressure of 900 lbs. only. Those Pipes were of the thickness of the one Marked No. 3 now returned from the Colony, and had some of them been laid in the Pesk Service
Osbert Chadwick Eag., C.M.G.
250
4/12/1906
the Pipe bursting at the point of fracture, neither is there any reason to suspect the quality of the metal as being the cause of
the burst.
..$.04 2
LIST NI buy an
21.
My attention was then directed to the thick- ness of the metal of the burst samples of 5" Pipe returned from the Colony, and measurements were taken at several points, the following being the averages obtained:-
5044
ant
Average thickness of 5" Pipe marked No. 2
0.233 inch
3
0.197 inch
22.
You will note from the above that there is considerable difference between the thickness of metal of the two 5 inch Pipes.
23.
In view of the differences in thickness, and also of the fact that one of the Pipes is Lep-welded and the other Butt-welded (see clauses 13 and 14), and further that other vari- ations in dimensions etc., exist, I arrive at the following con-
clusions:-
(a)
That the 5 Butt-welded Pipe Marked No. 2 (0.233" thick) is an ordinary trade Pipe, which may have been purchased locally from Merchants in Hong Kong or otherwise, but which certainly never formed part of any bulk of Pipes which came under my inspection. I give below a copy of a letter received from the Contractor on this point:-
"It is absolutely impossible for a 5" Butt-welded Pipe 14 to have been sent from my Works. There has not been such a "thing in my possession for very considerably over 20 years. "I can't remember seeing one made.
(b)
That the 6" Lap-welded Pipe marked No. 3 (0.197" thick) is probably one of the Pipes shipped under Req. 8 in the year 1900 for a test pressure of 900 lbs. only. Those Pipes were of the thickness of the one Marked No. 3 now returned from
the Colony, and had some of them been laid in the Pesk Service
8
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