A Descriptive And Historical Account of Hydraulic And Other Machines for Raising
A Descriptive And Historical Account of Hydraulic And Other Machines for Raising
Thomas Ewbank
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I have known Captain Savery at York's Buildings make steam 8 or 10 times stronger than common air ; and then its heat was so great, that it would melt common solder, and its strength so great as to blow open several of the joints of his machine ; so that he was forced to be at the pains and charge to have all his joints soldered with spelter or hard solder. " Ex. Philos. Ii, 467. There has been much discussion respecting the origin of this famous engine ; some writers contending that it was who...lly Savery's own, others that he derived it from one of Worcester's, or from the Century of In- ventions. Desaguliers asserts that Savery, to conceal its origin, " bought up all the Marquis of Worcester's books that he could purchase in Pater- noster Row, and elsewhere, and burn'd *em in the presence of the gentle- man his friend, who told me this. " But as Savery denied being indebted to any one for it, and as lie was certainly a man of great mechanical genius, it is probable that the doctor was imposed upon by his informant.
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