The Locomotive . d corrodedto such an extent thatnot over one-third ofthe original diameterremained. This reducedthe effective cross-sec-tional area to about one-sixth of normal and in-creased the unit stressin inverse proportion,thus effectually over-coming any reasonable factor of safety. During the overhauling,the hand-hole covers in the bottoms of the water legs are said to havebeen removed and the mud and sediment washed out, so it would seemas if these corroded staybolts must certainly have been seen at thattime. However, the persons who did the work evidently failed to appre-ciate this
The Locomotive . d corrodedto such an extent thatnot over one-third ofthe original diameterremained. This reducedthe effective cross-sec-tional area to about one-sixth of normal and in-creased the unit stressin inverse proportion,thus effectually over-coming any reasonable factor of safety. During the overhauling,the hand-hole covers in the bottoms of the water legs are said to havebeen removed and the mud and sediment washed out, so it would seemas if these corroded staybolts must certainly have been seen at thattime. However, the persons who did the work evidently failed to appre-ciate this to be a dangerous condition and so made no comment on examination by an expert boiler inspector would undoubtedlvhave revealed the overloading and wasting away of the staybolts andthe insufficient size of the safety valve, and would have brought forthrecommendations for suitable repairs to the throat and crown there had been expert inspection it is very likely this accident wouldnot have Fig. I. 78 THE LOCOMOTIVE [July, ?•^-^lll|l||i|rtl4:iH^^H ? 1 i\
Size: 1829px × 1366px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorhartfordsteamboilerin, bookcentury1800, bookdecade1860
