Fig. 23.
Multitubular, 10 years old, 7ft. long, 3ft. 6in. diameter, 5/16 inch plates, 50 lbs. pressure, but valve loaded to 80 lbs. Rupture commenced at the unguarded manhole, and the shell was rent into several pieces which were much scattered. The safety valve was defective, and the boiler had been much weakened by many patches, and was in poor condition and unable to bear the pressure at which it was worked at the time of explosion.
No.39. Wakefield.
August 3rd.
1 killed, 1 injured.
One of five. Rag boiler, 5 lbs. pressure from the exhaust steam of an engine. The manhole was of very large size and insecurely fastened, and was blown off.
No.40. Cornwall. ([Fig. 24.])
August 17th.
2 killed.