Do we have an authority on 19th century boilers among us? The 110-inch double-acting beam engine known as "The President", which was built by Cornishman John West for the Lehigh Zinc Company in Pennsylvania in 1876, is described as having 16 boilers, each measuring 36 inches in diameter and 50 feet long. They were built by the firm of I.P. Morris in Philadelphia. I am no expert but I've not encountered boilers like these before. Does anyone know what sort of boiler these might have been and how they functioned?
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