Fig. 21.
Plain Cylinder, 21ft. long, 4ft. 6in. diameter, 3/8 inch plates, 50 lbs. pressure. The boiler was very old and very much corroded. It had slightly rent open at some former time, and a most wretchedly made patch, shown in enlarged sketch, had been put on to stop leaking, made of thin sheets of iron inside and out and pasteboard between, held together by 36 slight bolts. Of course this patch did not restore the strength of the boiler, and it soon leaked badly, and the leaking hastened the corrosion of the plate below, until it was nearly eaten away, and quite unfit to bear the working pressure.
No.30. Leeds.
July 19th.
4 injured.
One of three, 12 years old. Two tube Cornish, 32ft. long, 7ft. 6in. diameter. Tube 2ft. 10in. diameter, 3/8 inch plates, 45 lbs. pressure. The right hand tube collapsed from end to end sideways, and ruptured in the furnace, and part of the tube was blown out. The cause of the explosion was simply the weakness of the tube without strengthening rings.
No.31. South Wales. ([Fig. 22.])
July 19th.
1 killed.
