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abandoned action amount apparatus appears applied arrangement attached body boiler bottom carried cause close combined communication connected consists construction containing cover cylinder Dated Dated Feb Dated Jan described direction drawings effect employed engines equal Exhibition experiments feet fire fitted fixed force frame give given heat important Improvements inches increase invention iron length less light London lower machine machinery manufacture March material matter means mechanical ments metal motion moved object obtained Office operation ordinary pass Patent completed piece pipe placed plates position practical preparing present pressure produced protecting question railway raised received reference resistance screw shaft ships side steam steel substances suitable supply surface tion tube turn upper valve vessel weight wheel whole wire