Accueil / Albums / Technology 1135
- Travelling Posting Carriage (1), 1750
- Travelling Post, 1825-35
- Travelling Position
88-mm multi-purpose gun - Travelling Position - Tooting the sirens of warning
Air raid siren in Paris - Thomas 'Flyer'
- Thirteenth-century hospital interior
Thirteenth-Century Hospital Interior (Tonerre) From “The Thirteenth: Greatest of Centuries,” by J. J. Walsh This was built by the sister of Louis IX of France, Marguerite of Bourgogne, who retired to it herself to spend her life caring for the ailing poor. - The Erard grand action modified by Herz
1. Key. 2. Wippen. 3. Jack. 4. Escapement lever. 5. Hammer-shank. 6. Hammer-butt notch. 7. Hammer-head. 8. Jack regulating button. 9. Regulating button to limit rise of escapement lever. 10. Hammer-butt. 11. Check. 12. Molded tail of hammer-head to engage with check. 13. Capstan-screw connecting key and wippen. 14. Action-rails. 15. Damper-head. 16. Damper-operating device. 17. Device to limit travel of jack. 18. Regulating device for escapement lever. 19. Springs (2) for escapement lever and jack. 20. String. 21. Flange. - They swoop down over the trenches
British plane flying over the trenches in the great war - The Wright Wing-warp
Apart from governing the ascending or descending movement, there was the question of preventing a machine from slipping sideways; and this the Wrights solved ingeniously. They saw, of course, that when their glider lurched to one side or the other, they would need some power to tilt it back again. So they devised a system by which the plane-ends of their machine—being made flexible—might be warped, or caused to shift up and down. This action the operator controlled, as he lay across the lower plane, by a movement of cords, and its operation is shown in Figure. The effect upon the machine may be described thus: should a wind-gust tilt down one plane-end, the “warp” upon that side of the machine was drawn down also, and the effect of this—seeing that it caused the plane to assume a steeper angle to the air and exercise a greater lift—was to raise the plane-ends that had been driven down by the gust. By a system of connecting the control cords, this balancing influence was made to act with double force; when one wing warped down, the other moved up; and, in this way, while the side of the machine tilted down was made to rise, the other plane-ends, which had been lifted, were made to descend. A dual righting influence was thus obtained. This system, which imitates the flexing movements made by a bird, was an important device; the Wrights patented it—combining the movement with an action of the rudder—and brought cases at law to enforce their rights. - The Wright Brothers experimental glider
After a year of exhaustive study and experiments with models in their wind tunnel, the Wright Brothers were ready to experiment with a man-carrying glider. With the thoroughness that was typical of every move of the Wrights, the brothers asked the government to let them have information on meteorological conditions all over the country. By studying the weather charts they were able to find a locality where there was a continual flow of wind. This would be nature’s wind tunnel where they could test their glider day after day. Through their study of the charts they found that the wind conditions at Kitty Hawk, on the North Carolina coast, seemed to offer the best possibilities for their glider test. Orville and Wilbur Wright began their experiments with a small man-carrying glider at Kitty Hawk in 1900. From that time until 1903 they made hundreds of successful glider flights and kept accurate records of each flight. They recorded wind velocity, angle of flight, duration of flight, time of day, temperature, humidity, and sky conditions overhead with the typical Wright attention to detail. Each year the Wrights constructed new gliders which embodied principles they had discovered for themselves during their flights at Kitty Hawk. Each glider was larger and had longer and narrower wings than the one before. During the fall of 1902 the brothers recorded nearly a thousand flights in a glider with a wingspan of thirty-two feet. It had a front elevator and a vertical tail which helped to maintain lateral stability. - The Wright Brothers Aero Engine
The Wright Brothers Aero Engine - The Wright Biplane
A.A.—Main-planes; B. Double front elevator; C. Rudder (two narrow vertical planes); D. Motor; E. Propellers; F. Pilot’s lever; G. Skids upon which machine landed. It is now possible to describe, as a completed craft, the Wright power-driven plane; The picture shows its appearance; and in looking at it one is struck by the fact that, save for one or two modifications, and the fitting of motor and propellers, the machine is practically a glider, such as the Wrights used for soaring tests. Of the changes to be observed, the most interesting concern the elevator and rear-rudder. The former, it will be seen, has a double plane; it is, in fact, a smaller biplane on the principle of the main-planes. Needing to increase the surface of the elevator, the brothers fixed one plane above another so as to make the construction stronger and occupy less space. The rear-rudder, acting like that of a ship. - The Wolverine
- The Winton
- The Whaleback
The Whaleback Another form of lake vessel of which great things were expected, but which disappointed its promotors, is the "whaleback," commonly called by the sailors "pigs." These are cigar-shaped craft, built of steel, their decks, from the bridge aft to the engine-house, rounded like the back of a whale, and carried only a few feet above the water. In a sea, the greater part of the deck is all awash, and a trip from the bridge to the engine-house means not only repeated duckings, but a fair chance of being swept overboard. - The water tank
The water tank is seen frequently along the route of the railroads and plenty of water must be taken on and carried in the engine tender to make steam which is the power used to drive the big engines. - The Walter Car
- The Voisin Biplane - top view
The Voisin Biplane - top view - The Voisin Biplane
At the beginning of 1909 there were two types of successful aeroplane—the Wright and the Voisin. Bleriot had flown with his monoplane and flown well; but he was still in the process of evolving a practical machine, and several other inventors were in a similar stage. It was the Wright and the Voisin which had proved their worth; and the Wright, as has been said, was the better of the two. Of the Voisin, as flown in 1909, a reproduction is given in the figure. It was a heavier aeroplane than the Wrights’, owing largely to the weight of its alighting gear (250 lbs.) and of its big balancing tail (more than 100 lbs.); hence the necessity for using a 50-h.p. motor, which drove a two-bladed metal propeller at the rate of 1200 revolutions a minute. The Voisin brothers, and other French makers, did not approve of the two-propeller system of the Wrights: they preferred one screw, revolving at high speed. But there was no doubt—at any rate in this stage of aviation—that the Wright method was more efficient than that of the Frenchmen. It was calculated, indeed, that the Wright biplane, when actually in the air, could be driven at an expenditure of only 15 h.p.; whereas the Voisin, even with its 50-h.p. motor running at full speed, had only just enough power to fly. A. Elevating plane B. Pilot’s seat C.C. Main-planes D. Engine and propeller E. Landing chassis F. Balancing tail G. Rudder. - The Vickers
Already, anticipating war in the air, a fighting aeroplane has been evolved; and a machine of this type is shown in Figure. The body, in which pilot and gunner sit, is armoured lightly with plates which will resist the penetration of a bullet. Such armouring was found necessary after the use of aeroplanes in Tripoli and the Balkans. When flying unavoidably low in these campaigns, and when fired at from the ground, the wooden bodies of machines were pierced by shot, and in several instances their occupants wounded. A fighting aeroplane A. Machine-gun projecting from opening in bow B. Gunner’s position C. Pilot’s seat D.D. Side windows for observation E. Engine and propeller. - The universe
The Universe (from the Heidelberg Codex of the Scivias) The scientific views of Hildegard are embedded in a theological setting, and are mainly encountered in the Scivias and the Liber divinorum operum simplicis hominis. To a less extent they appear occasionally in her Epistolae and in the Liber vitae meritorum. - The tunnels
The tunnels are passages for trains under mountains, hills and rivers. The tunnels are dark but the trains are well lighted. Electric motors are often used, this avoids the smoke of steam engines which is very unpleasant in the tunnels. - The Treachourous Kayak
The Treachourous Kayak Mastering all the literature of the Arctic, he (Charles Hall) determined to undertake himself the arduous work of the explorer. Taking passage on a whaler, he spent several years among the Esquimaux, living in their crowded and fetid igloos, devouring the blubber and uncooked fish that form their staple articles of diet, wearing their garb of furs, learning to navigate the treacherous kayak in tossing seas, to direct the yelping, quarreling team of dogs over fields of ice as rugged as the edge of some monstrous saw, studying the geography so far as known of the Arctic regions, perfecting himself in all the arts by which man has contested the supremacy of that land with the ice-king. - The Train Ferry
The Train Ferry carries entire trains across rivers where there are no bridges. Some of the largest train boats have several tracks and carry a train on each. The boats are tied in slips at the shore so that the tracks meet exactly those on the land. - The Tillamook Rock Light Station
This great rock, which lies about a mile off the coast of Oregon, was formerly a spot of terrible danger to ships. Great difficulties had to be overcome in order to erect this lighthouse, but now its 160,000-candle-power light is visible, in clear weather, for eighteen miles. - The superstitious notions of the antients with regard to Eclipses
The superstitious notions of the antients with regard to Eclipses - The Stearns
- The Steamship Oceanic
This ship may be said to be the first of the transatlantic liners, for in her, for the first time, great concessions were made for the comfort and convenience of the passengers. - The Stage Coach - Old Times
- The Stage coach
The Stage coach is used in the country where towns are few. The stages meet trains at the stations and take on passengers to be carried to their homes away from the railroad. Some of the stage routes are several hundred miles long. - The Spray
In which Captain Joshua Slocum circumnavigated the globe. - The Solar System, or the orbits of the planets
The Sun is placed in the midst of an immense space, wherein six opaque spherical bodies revolve about him as their center. These wandering globes are called the Planets, who, at different distances, and in different periods, perform their revolutions from West to East, in the following order: 1. ☿ Mercury is nearest to the Sun of all the planets, and performs its course in about three months. 2. ♀ Venus in about seven months and a half. 3. ♁ The Earth in a year. 4. ♂ Mars in about two years. 5. ♃ Jupiter in twelve. And lastly, ♄ Saturn, whose Orbit includes all the rest, spends almost 30 years in one revolution round the Sun. The distances of the Planets from the Sun are nearly in the same proportion as they are represented in figure. Supposing the distance of the Earth from the Sun to be divided into 10 equal parts; that of Mercury will be about 4 of these parts; of Venus 7; of Mars 15; of Jupiter 52; and that of Saturn 95. - The Solar System
By Astronomy we discover that the Earth is at so great a distance from the Sun, that if seen from thence it would appear no bigger than a point; although it’s circumference is known to be 25,020 miles. Yet that distance is so small, compared with the distance of the Fixed Stars, that if the Orbit in which the Earth moves round the Sun were solid, and seen from the nearest Star, it would likewise appear no bigger than a point, although it is at least 162 millions of miles in diameter. - The Snow. an obsolete type
The Snow. an obsolete type - The Situation of the Cavalry man on the near side
- The single-seated 'air-car'—a suggested type
A. Enclosed body B. Driver’s position C. Steering wheel D. Foot-controlled throttle lever for engine E.E. The two sustaining-planes F. The motor G. Propeller H. Rudder I. Elevating-plane J. Landing gear. First probably for mails, and after this for passenger-carrying, will aeroplanes of the future be employed; and they will find a scientific use, too, in exploring remote corners of the earth, and in passing above forests which are now impenetrable. Small, fast machines, much cheaper than those of to-day, will be bought also for private use—many of them, as suggested by the figure, having room for only one man within their hulls. Then there will be flying clubs; and to these, after their day’s work, will come a city’s toilers. Through the cheapening of craft, as time goes on, practically all members of the community will experience the joys of flight. Thus, say on a summer’s evening, the doors of the sheds will be pushed aside, and the machines wheeled out and overhauled; then, one by one, these small, fast-moving craft will rise into the air and dart here and there—circling, manœuvring, dipping, and diving. - The Shallop
- The seven-cylinder 50-h.p. Gnome motor.
The difficulty with air-cooling—although it had obvious advantages over water-cooling—was to bring enough air to play upon the surfaces of the cylinders; and it was here that the Gnome won so complete a success. In other engines the cylinders were stationary, and their pistons, moving up and down in the cylinders, turned a crank-shaft to the end of which the propeller was fixed. Therefore the only air the cylinders obtained was what rushed upon them through the speed of the machine in flight. But in the Gnome, instead of the cylinders remaining stationary and the crank-shaft revolving, the cylinders themselves spun round, and the crank-shaft did not move. An illustration of this motor with one end of the crank-chamber removed, so that the piston-rods can be seen, is given in the figure. It will be noted that there are seven cylinders, set in the form of a star, and that the seven piston-rods projecting from them come together upon a single crank-pin, which is attached to the stationary crank-shaft and turns round it. The propeller, instead of being fitted to the crank-shaft, as was the case with other motors, was bolted to a plate upon the engine itself, so that when this turned around its crank-shaft, it carried the propeller with it. - The seaplane shoots off the catapult
The seaplane shoots off the catapult - The Screw of Archimedes
- The Savannah
The first steamship to cross the Atlantic. - The Santa Maria, the Niña and the Pinta
The Santa Maria, the Niña and the Pinta The most famous ships that ever sailed the seas The Niña, shown in the foreground, was the smallest of the three, but in her Columbus returned to Spain after the Santa Maria was wrecked, and the captain of the Pinta seemed tempted to prove unfaithful. - The Sails of a Four-masted Ship
(1) Foresail; (2) Mainsail; (3) Crossjack; (4) Jigger; (5) Lower foretopsail; (6) Lower main topsail; (7) Lower mizzen topsail; (8) Lower jigger topsail; (9) Upper fore topsail; (10) Upper main topsail; (11) Upper mizzen topsail; (12) Upper jigger topsail; (13) Fore topgallant sail; (14) Main topgallant sail; (15) Mizzen topgallant sail; (16) Jigger topgallant sail; (17) Fore royal; (18) Main royal; (19) Mizzen royal; (20) Jigger royal; (21) Fore skysail; (22) Main skysail; (23) Mizzen skysail; (24) Jigger skysail; (25) Flying jib; (26) Outer jib; (27) Jib; (28) Fore topmast staysail; (29) Spanker; (30) Buntlines; (31) Leechlines; (32) Reeftackles; (33) Braces; (34) Foresheet; (35) Fore topmast staysail sheet; (36) Jib-sheet; (37) Outer jib-sheet; (38) Flying jib-sheet. - The Roe Triplane
An experimenter who braved this apathy and won his way until he became a constructor of aircraft, was Mr. A. V. Roe. For some time he was an advocate of the triplane form of machine—a craft, that is to say, with three main-planes fitted one above another. The machine with which he obtained flights, although they were very brief, is seen in the figure. Subsequently, however, Mr. Roe adopted the biplane form. His distinction in the pioneer days was that he managed to make his triplane lift into the air and fly a short distance, with the aid of a motor-cycle engine developing no more than 9 h.p. A.A.A. Three main-planes B. Motor C. Four-bladed propeller D.D.D. Triplane tail E. Rudder F. Landing gear. - The Rocket 1830
In 1830 all this had disappeared, and we find in Mr. Nasmyth's sketch a regular fire-box, such as is used to this moment. In one word, the Rocket of 1829 is different from the Rocket of 1830 in almost every conceivable respect; and we are driven perforce to the conclusion that the Rocket of 1829 never worked at all on the Liverpool and Manchester Railway; the engine of 1830 was an entirely new engine. - The Rigging of a Three-masted Ship
(1) Foremast; (2) Mainmast; (3) Mizzenmast; (4) Fore, main, and mizzen-topmasts; (5) Fore, main, and mizzen topgallant masts; (6) Fore, main, and mizzen royal and skysail masts; (7) Fore yard; (8) Main yard; (9) Crossjack yard; (10) Fore, main, and mizzen lower topsail yards; (11) Fore, main, and mizzen upper topsail yards; (12) Fore, main, and mizzen lower topgallant yards; (13) Fore, main, and mizzen upper topgallant yards; (14) Fore, main, and mizzen royal yards; (15) Fore, main, and mizzen skysail yards; (16) Spanker gaff; (17) Fore and main trysail gaffs; (18) Lower shrouds; (19) Topmast shrouds; (20) Back stays; (21) Fore skysail stay; (22) Fore royal stay; (23) Flying jib stay; (24) Fore topgallant stay; (25) Jib stay; (26) Fore topmast stays; (27) Fore stays; (28) Main skysail stay; (29) Main topgallant stay; (30) Main topmast stay; (31) Mizzen skysail stay; (32) Fore and main lifts; (33) Topsail lifts; (34) Topgallant lifts; (35) Spanker boom; (36) Bowsprit; (37) Jib boom; (38) Flying jib-boom; (39) Martingale or dolphin striker; (40) Braces (named from the yard to which they are attached); (41) Bobstays; (42) Martingale stays. - The Red Jacket
The clipper ship that made the fastest trip across the Atlantic ever made under sail. Her record from Sandy Hook to Rock Light was thirteen days, one hour. - The Rambler Runabout
- The Ptolemaic idea of the Universe
By the second century of the Christian era, the ideas of the early philosophers had become hardened into a definite theory, which, though it appears very incorrect to us to-day, nevertheless demands exceptional notice from the fact that it was everywhere accepted as the true explanation until so late as some four centuries ago. This theory of the universe is known by the name of the Ptolemaic System, because it was first set forth in definite terms by one of the most famous of the astronomers of antiquity, Claudius Ptolemæus Pelusinensis (100–170 a.d.), better known as Ptolemy of Alexandria. In his system the Earth occupied the centre; while around it circled in order outwards the Moon, the planets Mercury and Venus, the Sun, and then the planets Mars, Jupiter, and Saturn. Beyond these again revolved the background of the heaven, upon which it was believed that the stars were fixed— "Stellis ardentibus aptum," as Virgil puts it. - The Prison Ship 'Jersey'
The "Jersey" prison-ship was not an uncommon lot for the bold privateersman, who, when once consigned to it, found that the reward of a sea-rover was not always wealth and pleasure. The "Jersey," which had been originally a 74-gun ship, then cut down to a hulk and moored at the Wallabout, at that time a lonely and deserted place on the Long Island shore, now about the center of the Brooklyn river front. - The primary Planets never eclipse one another
The primary Planets never eclipse one another - The Press used in making Federal presses steel frame
- The Present Aspect of Constantinople
- The Pope-Robinson
- The Pope-Hartford
- The Planets, Showing their Relative Distances and Dimensions
(Drawn approximately to scale) The isolation of the Solar System is very great. On the above scale the nearest star (at a distance of 25 trillions of miles) would be over one half mile away. The hours, days, and years are the measures of time as we use them; that is: Jupiter's "Day" (one rotation of the planet) is made in ten of our hours; Mercury's "Year" (one revolution of the planet around the Sun) is eighty-eight of our days. Mercury's "Day" and "Year" are the same. This planet turns always the same side to the Sun. - The Planetary motions very irregular as seen from the Earth
The apparent magnitudes of the Planets continually change as seen from the Earth, which demonstrates that they approach nearer to it, and recede farther from it by turns. From these Phenomena, and their apparent motions among the Stars, they seem to describe looped curves which never return into themselves, Venus’s path excepted. And if we were to trace out all their apparent paths, and put the figures of them together in one diagram, they would appear so anomalous and confused, that no man in his senses could believe them to be representations of their real paths; but would immediately conclude, that such apparent irregularities must be owing to some Optic illusions. - The Pillory
It would be impossible to enumerate the offences for which Englishmen were pilloried: among them were treason, sedition, arson, blasphemy, witch-craft, perjury, wife-beating, cheating, forestalling, forging, coin-clipping, tree-polling, gaming, dice-cogging, quarrelling, lying, libelling, slandering, threatening, conjuring, fortune-telling, “prigging,” drunkenness, impudence. One man was set in the pillory for delivering false dinner invitations; another for a rough practical joke; another for selling an injurious quack medicine. All sharpers, beggars, impostors, vagabonds, were liable to be pilloried. - The Pierce Transmission Gear
- The Phelps