William Alltoft Summers and Nathaniel Ogle

“ But in order that the nature of our said Invention may be clearly understood, we have hereunto annexed a Sheet of Drawings or Plans, which will illustrate one means of carrying our Invention into effect. ”

“ The water which is contained between the tubes or vessels a, a, a, may be pumped into the boiler or generator to any height at which it may be found most convenient, and a safety valve may be attached in the usual way. We wish it to be understood that we do not limit our claim of Invention to the precise forms exhibited in the Figures of the parts of which our boiler or generator is constructed, as the tubes or vessels may be elliptical or of any other convenient form which would answer the purpose ”

“ TO ALL TO WHOM THESE PRESENTS SHALL COME, we, William Alltoft Summers, of Saint George's Place, Saint George's in the East, in the County of Middlesex, Engineer, and Nathaniel Ogle, of Milbrook, in the County of Hants, Esquire, send greeting. ”