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" "And Mr. Triewald further says, that in the Summer of the Year 1742, be bad sent one of his Engines, calculated for a Sixty Gun Man of War, to France; which being approved of by the Royal Academy of Sciences at Paris, the King of France has ordered all the Men of War to be furnished with the like Ventilators.
(September 17, 1677- January 4, 1761) was an English clergyman whose inventions, studies and experiments made major contributions to developments in botany, and in both plant and animal . He was the first to measure utilizing his "Hales Manometer", and also invented a to distill various "airs" i.e., gases. His other medical or health related inventions include a ventillation bellow to improve air quality in enclosed spaces, and surgical for the removal of s. He was a philanthropist and wrote a popular tract on alcoholic intemperance.
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[I]t occurred to me the March following, that large Ventilators would be very serviceable, in making the Air in Ships more wholesome; this I was so fully satisfied of, that I immediately drew up an Account of it; several Copies of wbich were communicated, both by my self and others, to many Persons of Distinction, and Members of the Royal Society: Before whom I laid a large Account of it, which was read in their Presence the May following...
And in his Letter to Baron Wasenberg, Envoy from the King of Sweden, dated the 22d of April 1743... he says, "that every Swedish Man of War, and Hospital Ship, was last Year furnished with one of my Engines; which had not been done, in case so they had not experienced the Benefit of the same, the Campaign so before that." So that a Trial was made with these Ventilators in the Year 1741, which proved a very sickly Summer in the Swedish Fleet, except only in the Ship or Ships, which were refreshed by Ventilators: A strong Instance of their great Usefulness; which induced the Swedes to put them into every Man of War and Hospital-Ship, the rear following.
He proposes also to prevent Sea-Sickness thereby, by having a Man thus shut up in a close Cabin in a compressed Air: This, I suppose, has led some to say, that this and my Proposal are the same. But bow wide is their Difference! My Ventilators are intended to promote a free Perspiration and Breathing, by conveying great Quantities of fresh Air into Ships, in exchange for very bad Air. On the contrary, Dr. Henshaw's Conetrivance would make a good Air, by confining it, very bad, and thereby retard Perspiration, and incommode the Breathing, and so cause, instead of preventing, Sickness... Besides, the Make of my Ventilators is very different from that of Organ-Bellows.