- 80
Hulls, Jonathan.
Description
- A description and draught of a new-invented machine for carrying vessels or ships out of, or into any harbour, port, or river, against wind and tide, or in a calm. London: for the author [sold by Thomas Boreman], 1737
Provenance
Literature
Condition
"In response to your inquiry, we are pleased to provide you with a general report of the condition of the property described above. Since we are not professional conservators or restorers, we urge you to consult with a restorer or conservator of your choice who will be better able to provide a detailed, professional report. Prospective buyers should inspect each lot to satisfy themselves as to condition and must understand that any statement made by Sotheby's is merely a subjective, qualified opinion. Prospective buyers should also refer to any Important Notices regarding this sale, which are printed in the Sale Catalogue.
NOTWITHSTANDING THIS REPORT OR ANY DISCUSSIONS CONCERNING A LOT, ALL LOTS ARE OFFERED AND SOLD AS IS" IN ACCORDANCE WITH THE CONDITIONS OF BUSINESS PRINTED IN THE SALE CATALOGUE."
Catalogue Note
first edition of the first book on steam navigation. This little work is the result of a successful application by Hulls for a patent, granted on 21 December 1736, for an atmospheric steam engine to facilitate marine propulsion. Hulls proposed a paddle towboat with a pair of wheels in the stern. It was to hold a boiler connected to a vertical steam cylinder. Pistons within the cylinder would be depressed by steam condensing, and would raise a counterweight through a system of ropes and pulleys which on its own descent would rotate the layshaft in the contrary direction. This alternative motion would provoke, through friction, the continuous rotation of the paddle-shaft mounted on a framework over the stern. There is no evidence, however, that Hull was ever able to offer a practical demonstration of his invention.