However, we find in the records of our own Patent Office, that Englishmen were not behind the Dutch in curious and frequently very absurd inventions. Thus, in 1675, one Miller[30] patented a windmill fixed to a vessel’s deck to turn an endless rope, and thus, by “two toothed wheels,” to drive a couple of paddle-wheels. Such commonplace matters as storms at sea or adverse winds, still less the likelihood of the whole of the top weight he proposed to erect on the deck of his vessels being blown or rolled overboard, do not appear to have entered into the fertile and imaginative brain of the inventor.
Again, in 1701, two gentlemen (whose names are not worth recording) proposed to have “vanes or sails arranged between two wheels on the same shaft,” the “sails or float-boards being so contrived as to be able to play in a given space, being fixed perpendicularly on the wheel and fastened by a cord or otherwise, so that when the wind blows from any quarter three-fourths of the sails catch the wind, and, by driving the wheel round, the sails, which are forced against the wind, come up edgeways, but when past the centre immediately turn to the breeze, and by that means produce a continued circular motion.”[31]
Phillips and his windmill.
About the same period another invention, of a somewhat similar sort, was published by a person named Phillips, who proposed to erect between two tall masts “a windmill of altogether an original description.”[32] One is reminded when reading these grave proposals, of Don Quixote’s ludicrous exploit with the windmill, and considering the care Mr. Phillips seems to have bestowed upon his invention, he must have been quite as enthusiastic and apparently as serious in his proposal as the hero of Cervantes in his knight-errantry. But all these schemes, and many others too numerous to mention, however impracticable and absurd some of them may have been, had the germ of the great invention more or less developed.
Papin and Morland.
During Papin’s residence in England, 1681, he witnessed one of the interesting experiments made on the Thames, in which a boat constructed from the design of the Prince Palatine Robert, fitted with revolving oars or paddles, “left the King’s barge, manned by sixteen rowers, far astern in the race of trial.” This experiment suggested to him, in 1688, the idea of an engine, and led to his proposal of using gunpowder to create a vacuum under a piston, so that the piston would descend. Two years afterwards, 1690,[33] Papin describes a steam cylinder, in which a piston descends by atmospheric pressure when the steam below it is condensed, and among the subsequent uses of such a machine he mentions the propulsion of ships by “Rames volatiles” or paddle-wheels, the axles of which, he thought, might be turned by several of his cylinders acting alternately by the rack work shown in his drawing.[34]
In 1683, a little before Papin, Sir Samuel Morland, Master of Works to Charles II., wrote a treatise on the “Élévation des Eaux par toutes sortes de Machines,” &c., with four pages appended to it called “The Principles of the New Force of Fire, invented by Samuel Morland in 1682, and presented to His Most Christian Majesty in 1683.” In this work (still in MS. in the Harleian Collection of the British Museum), it is stated that “water being converted into vapour by the force of fire, these vapours shall require a greater space (about 2000 times) than the water occupied, and sooner than be constantly confined would split a piece of cannon.” It is remarkable that, so long before careful experiments had been made on the expansibility of water when converted into vapour, Morland should have given so near an approximation to the true amount (about 1750 times).
Savery.
Thomas Savery, one of the most ingenious men of the age in which he lived, proposed (1696) a mode of raising water and occasioning motion “to all sorts of mill-work by the impelling force of Fire,” adding,[35] “it may be very useful to ships, but I dare not meddle with that matter, and leave it to the judgement of those who are the best judges of maritime affairs.”[36]
In 1697, Papin (whose own invention had proved a failure) used Savery’s engine, which had been greatly improved by Newcomen in 1705 to propel a steam-boat on the Fulda.[37] In that year, too, Papin proposed to drive a vessel by paddle-wheels turned by the stream, and by boat-hooks which somehow pushed against or griped the bottom.[38] Chabert, in 1710, described a vessel with large paddle-wheels working in troughs cut through the hull;[39] and, in 1721, we read of a galley built in France with revolving oars fastened to a drum or wheel with paddle-vanes on hinges, capable of being set to any angle, and of being worked by 200 men, the galley having three of these wheels on each side.[40] John Allan, in 1722, proposed a mode of navigating a ship, “by forcing water or some other fluid through the stern or hinder part, at a convenient distance under the surface of the water, into the sea, by proper engines placed within the ship.” He also proposed, as Papin had previously done, a machine with the power of “firing gunpowder in clauso,” with the view of navigating a ship in a calm.[41]