Steamships and their story

by E. Keble Chatterton

Now that we have traced in outline the vain attempts at physical propulsion, let us turn to take a view of the evolution of that other invention whose advent alone delayed the practical utility of the paddle-wheel to boats. Who shall say how it was that steam came first to be regarded as a means of giving power? In certain parts of the world, where geysers and boiling springs existed, man must naturally have been struck by the elastic force which steam possessed. An intellect which had any leaning to the side of practical economy must have reasoned that here was a valuable force running to waste, which might have been employed in the service of mankind, just as the swift-running rivers could be made to turn the water-wheels. But, as we said just now, steam was not wanted yet, for human labour was too cheap to bother about it; and we might remark incidentally that it was owing to this same cheapness that the galley, or rowing craft, was encouraged for many centuries in the Mediterranean, to the partial exclusion and great discouragement of the big sailing ship. Indeed, slavery, or abundance of cheap, compulsory labour, has been the means of holding back the progress of the world. Had the big sailing ships come at an earlier date the far-off countries would have been discovered much sooner, and the study of the properties of steam—or some other means as the equivalent of physical power—would have been regarded with a greater enthusiasm. Perhaps it would be more accurate to speak of the re-discovery of steam than of its invention: for as early as 130 B.C. Hero, of Alexandria, had written a treatise on “Pneumatics,” and described a light ball supported by a jet of steam which came out of a pipe into a cup, much as one sees in the rural fairs of to-day the same idea used when the force of water raises a light ball for the bucolic rifleman to shoot at. Hero also referred to the “aeolipile,” which was a hollow ball mounted on its axis between two pivots, one of which was hollow and acted as a steam pipe. Two nozzles formed part of the ball and were fitted at right angles to the pivots on which the ball revolved, and owing to the reaction caused by the escape of the steam from the jets touching the ball the latter was made to revolve. This is well illustrated in the [plate facing page 18].

From the time of Hero to the seventeenth century ensues a wide hiatus, although in the meantime there were not wanting some who now and again added slightly to the body of knowledge which the world possessed on the subject. Of these we might mention such names as Archimedes in the second century B.C., and Mathesius in the sixteenth century A.D. But Solomon de Caus, or Carrs, in the first half of the seventeenth century showed that the steam given off by boiling water could be used for raising water, and Giovanni Branca, about the same time, brought about what is really the progenitor of the modern turbine. In this seventeenth century, also, another ingenious Italian, Evangelista Torricelli, proved that the atmosphere in which we live possessed weight, and to-day everyone is aware that this is so, and that the pressure of the air is 15 lb. per square inch. The working of the mercurial barometer is the simplest proof of this. We shall see presently how an isolated fact unearthed in one age becomes the foundation of the mighty success of a later inventor, and thus the assertion which we made on an earlier page, that the credit of inventing the steamboat belongs neither to one man nor to one age, is not devoid of truth.

Otto von Guericke, about the middle of the same century, showed the practical utility of producing a vacuum, of which the syringe and the common suction pump are such excellent examples. But we are not writing a history of inventions, nor of steam, but of the steamship, and we shall pass on presently to see how each of these separate important discoveries eventually blended to form the subject of our present study. In 1663 Edward Somerset, the second Marquis of Worcester, to whom we have already referred, also published his description of “An Admirable and most Forcible Way to drive up Water by Fire,” and in this year he obtained protection by Act of Parliament for his “water commanding engine.” When he had interested himself so much in the problem of sending a craft against a current, and simultaneously was obtaining success in the development of steam power, it certainly seems a little strange that the Marquis did not advance just that one step farther which was necessary to complete the syllogism, and apply steam for the purpose of solving the problem of going against the tide or stream. That, however, was reserved for another inventor, and of a different nationality.

And so we come to one whose name is deserving of especial mention in the history of the steamship, for it was he who was the first to do what myriads of others have since done. Many writers have asserted wrongly that this man or the other was the first to succeed: they have gone back as far as de Garray and as short a distance as Fulton. Some have stated timidly and with reserve that Denis Papin is said to have been associated with this honour. But there can be no manner of doubt that to Papin certainly belongs the high distinction of having caused the steamboat to be an actual fact and not merely a figment of imagination. Papin was a French engineer, who, being a Calvinist was, after the revocation of the Edict of Nantes, obliged to go into exile. For that reason, therefore, he betook himself to the Court of the Landgrave of Hesse, where he found refuge. In 1690 he published a suggestion for obtaining power by means of steam. His idea was to have a cylinder made of thin metal; water was to be placed therein and heated. In the cylinder were to be also a piston and rod on which was a latch, and when the water had been heated sufficiently so that enough steam had been generated, the piston would be moved upwards and be kept there by means of the latch. Thereupon the fire was to be taken away, and, the steam then condensing, as soon as the latch was loosed the piston was bound to drop to the bottom of the cylinder; and if a rope and pulley were attached to the rod, then the descent of the piston would be able to raise a weight at the end of the rope. This was practically what was afterwards known as the atmospherical engine, and Papin was of the opinion that it could be employed for draining rivers, throwing bombs and other purposes. But it is especially notable for our purpose that he firmly believed that it could be employed for rowing a craft against the wind, and indeed would be preferable to the working of galley slaves for getting quickly over the sea; for men, he explained, occupied too much space, consumed too much food, and his tubes and pumps would make a far less cumbersome arrangement. It is worth while noting that the idea of these early inventors of the steamboat was not so much to propel the ship as to row her mechanically by oars or paddles. We still call them paddle-wheels rather than propelling wheels, and the early wheels used for the steamboat were practically paddles placed crosswise, with a blade at the end of each spar. When fitted to an axle, of course, they moved in a circular fashion. The French “roue à aubes,” which is the expression that these French inventors made use of in describing their creations, conveys precisely the same idea.

Papin, casting about for some method of bringing about the steamboat, suggests the use of these rotatory oars, and mentions having seen them fixed to an axle in a boat belonging to Prince Robert of Hesse. This latter was one more of those attempts to propel a craft by physical means, for these revolving oars were turned by horses. Papin, in considering the matter, thought that instead of horses the wheels might be made to go round by steam force, and in 1707 he actually constructed the first steamboat, which he successfully navigated on the River Fulda, in Hanover. He even did so well that he set off in her to steam down to the sea and cross to London; but, of course, the old, conservative prejudice of the local boatmen was bound to make its appearance as soon as so historical a craft had shown her ability. And so, arriving at Münden, the watermen, either through fear that this new self-propelling craft would take away their livelihood through inaugurating a fresh era, or, being envious of a success which no man had ever before obtained, they attacked this steamboat, smashed it to pieces, and Papin himself barely escaped with his life. Thus, a craft and its engines, which to-day would be welcomed by any museum in the world, was annihilated by the men who had the privilege of witnessing the first steamship. Papin never got over the grief caused by so cruel a reception of his brilliant labours, and it is deplorable to think that such scant encouragement was possible. Besides being the successful originator of the steamboat, he was also the inventor of the safety valve.

The publication of Papin’s correspondence with Leibnitz puts the case beyond all possibility of doubt, and the reader who cares to pursue the subject will find the facts he requires in “Leibnizens und Huygens’ Briefwechsel mit Papin,” by Dr. Ernst Gerland. From this we see that Papin had already published a treatise dealing with the application of heat and water. In a letter, dated March 13, 1704, he wrote to Leibnitz of his intention to build a boat which could carry about four thousand pounds in weight, and expressed the opinion that two men would be able to make this craft easily and quickly to ascend the current of a river by means of a wheel which he had adjusted for utilising the oars. That Papin made no aimless plunge, but went into the matter scientifically, is quite clear. He studied carefully the important fact of the resistance which is offered to a vessel passing through the water, and thus found what he believed to be the correct lines on which his ship was to be built. He shows that he had been hard at work expanding his theories, and was longing to have the opportunity to put them to a practical test. On July 7, 1707, he writes to say that he has many enemies at Cassel (where he was then sojourning) and contemplates going to England; and in asking permission so to do he brings forward the plea that it is important that the new type of ship should have a chance of proving its worth in a seaport such as London. He does not conceal the great faith which he reposes in this novel craft: “qui, par le moien du feu, rendra un ou deux hommes capables de faire plus d’effect que plusieurs centaines des rameurs.” Then, writing again to Leibnitz, also from Cassel, under date of September 15 of the same year, relating the result of his experiment of this first steamboat, he remarks: “Je Vous diray que l’experience de mon batteau a êté faitte et qu’elle a reussi de la manière que Je l’esperois: la force du courant de la riviere ètoit si peu de chose en comparaison de la force de mes rames qu’on avoit de la peine à reconnoitre qu’il allât plus vite en dêcendant qu’en montant.”

With such statements as these before us, we can no longer be in any doubt as to the first author of the steamboat.

Papin had discovered a method of producing a vacuum by the condensation of steam, but Thomas Savery is one of the many instances of the case where two men in different countries were working separately and unknown to each other at a common problem. The latter had patented an apparatus for raising water by the impellent force of fire so far back as the year 1698, or nine years before Papin’s steamboat made her appearance; but he had also independently discovered a method of producing a vacuum by the condensation of steam just as had Papin. And this same Savery had shown that the same problem which Papin had succeeded in solving was also interesting himself: for he had gone so far as to ask for a patent for an invention for moving a paddle-wheel on either side of a ship by means of a capstan, which capstan was to be revolved by men. Eventually it occurred to him, as it had not occurred to the Marquis of Worcester, that steam might be employed as helpful to ships. Nevertheless, Savery did not carry this idea to any practical test.

We come now to Thomas Newcomen, who, notwithstanding the fact that his home was at Dartmouth, where in the Elizabethan years so much had been done in connection with ship-building and the sending forth of so many naval expeditions across the seas, does not seem ever to have done anything directly for the development of the steamboat. But indirectly Newcomen did much, and the machine which he introduced, and with which his name is inseparably connected, was practically an English equivalent of Papin’s atmospheric engine, to which we have already referred. Newcomen’s engine is important to us, inasmuch as it embodied in a practical manner the main characteristics of what eventually became the familiar reciprocating steam engine; and had it not been for this, Watt might not have evolved his historic engine, and consequently Fulton not succeeded as he did. I shall endeavour not to weary the non-technical reader, but I must pause a moment here to give some idea of the nature of Newcomen’s engine, because of the close relation which it bears to the subsequent development of the steam engine as fitted in ships and boats. It consisted, then, of a vertical cylinder, which, unlike our modern cylinders, was open at the top. It was provided with a piston to which were attached chains that connected with one end of a beam, the centre of the beam being so fixed as to allow it to oscillate. Steam was generated in a boiler, on the top of which was a primitive cylinder, and by opening a valve, steam was admitted into the cylinder and so pushed up the piston. When the piston had reached the top of the cylinder the valve was closed so that the steam was shut off. Then cold water from a cistern was allowed to enter the bottom of the cylinder, and by this means the steam was condensed, so causing a vacuum; by the pressure of the air—which, as already mentioned, is 15 pounds to the square inch—the piston was forced down again. We get here, then, the essential features of that steam engine which is so familiar to all who travel by land or by sea. But these early atmospheric engines were not invented for the purpose of transport: it was for the pumping of water from mines that they were principally contrived, and in the case of the Newcomen engine, the other end of the beam opposite to that which was worked upwards by steam pressure (and downwards by atmospheric pressure) was attached to pump-rods that worked in connection with the buckets for pumping out the water. Thus, like the movement of the see-saw, when the piston-rod was down at the bottom of the cylinder the pump-rods were correspondingly elevated, and vice versa. As soon as the piston descended to the base of the cylinder through the cessation of the vacuum the spray of cold water was stopped, and steam was again admitted into the cylinder to cause another upward stroke. At the same time it was necessary to discharge the hot water which had accumulated at the bottom of the cylinder, and this was done through a pipe fitted with a valve which would not allow of its return; any air admitted with the steam and the cooling water was blown out through a snifting valve (so-called because of the noise it makes) as the powerful steam came in. But, the reader may ask, what about the open top of the cylinder? How can it be any good to use an uncovered cylinder in conjunction with steam? The answer is, that since the top of the piston was always kept flooded with water, all air was excluded.

We have thus seen the steam engine in its most elementary form; how that it employs boiling water until it becomes steam which is then admitted to a cylinder and by its own force moves a tight-fitting disc or piston up and down. We have also seen that by attaching a rod to this disc, and, further, by connecting this rod to a beam, we can make the latter go up (by means of the steam pressure) or come down (through the pressure of the air). In order to effect the latter we have remarked the fact that a vacuum had to be made by condensing the steam through spraying cold water.