Watt's rotary steam engine 38 HP, 1808

Historic Steam Engines Series: 1808 - Mr. Watt's Rotative Steam Engine, as constructed by Messrs. Boulton and Watt, Soho, 1808, 38 Horse power playlist: https://www.youtube.com/playlist?list=PLeaFkeA7JwX4cvb3B1mDDWYkOA9Vji8Tx "This is the construction which Mr. Murdock adopted for large house-built steam-engines for manufactories, during the first ten years that he directed the manufactory at Soho, after Mr. Watt retired from the business. The action of the steam in this engine is precisely the same as in Mr. Watt*s original rotative engine (see p. 459) ; the chief differences in the construction are in the nossels, and in the working gear for opening the valves. The steam-valves are made with tubular spindles, to admit the spindles of the exhausting-valves through them, on the plan already described, p. 684 ; and the valves are opened and shut by the motion derived from an excentric circle fixed upon the axis of the crank. The foundations are entirely of stone without any timber ; and all the other parts, except the spring beams, are of metal. The great lever is made of cast iron, and its centre of motion is supported by a cast iron column. The rotative motion is obtained by a simple crank, in lieu of sun and planet-wheels, and a multiplyingwheel is fixed on the axis of the crank, to turn a pinion on the axis of the flywheel, and thus give it an increased velocity." Farey: "treatise on the Steam Engine", London 1827 Based on: https://archive.org/details/treatiseonsteame01fareuoft/page/n5 https://books.google.be/books/about/The_Steam_Engine.html?id=MywKAAAAIAAJ&redir_esc=y To visit also: https://www.youtube.com/watch?v=fsXpaPSVasQ https://www.youtube.com/results?search_query=steam+engines https://www.youtube.com/watch?v=6mNsPjHqxz4 https://www.youtube.com/watch?v=j6WMhJ1HuZc https://www.youtube.com/watch?v=RfKcjNuWc_8 https://www.youtube.com/watch?v=Bmfsn-iBqlQ https://www.youtube.com/watch?v=Zlp1aG1VJRI

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