Home / Albums / Technology / Transport 561
- Racing
- Tandem
- Tandem
- The Stage Coach - Old Times
- Bicycle Locomotive No. 2
- Bicycle Flat Car
- Bicycle Locomotive No. 1
- Bicycle Box Freight Car
- Bicycle Coal Car
- Single Bicycle Elevated Structure
- Single Electric Bicycle Structure
- Single Post, Double track, Steel Elevated Bicycle structure
- Screenshot (35767)
- Sectional View of Bicycle Motor Car
- Side view of bicycle motor wheel
- Combiined Elevated and Surface Structure
- Cross Section of Bicycle Structure and Bicycle Electric Car
- Elevated Double Track Georgia Pine Structure
- Elevated Railroad Station
- Screenshot (35750)
- Bicycle Palace CAr
- Bicycle Railway Switch
- Bicycle Sleeping and Accommodation Coach
- Bicycle sytem applied to N.Y. Elevated railway
- Bicycle Locomotive No. 3
- Central Calif. Traction Co. Car 105 on Stockton Blvd
- Folsom Power House
- Sacramento Electric, Gas and Railway Co., Car 2
- Sacramento Electric, Gas and Railway co. on the J Line
- Car 14 at the S.P. Depot
- Car 42 at N St. Carbarn
- Sacramento City Lines Car 90
- Sacramento City Lines Car on 10th Street near M St., 1946
- Central Calif. Traction Co. Car 103 at Colonial Heights
- P.G. and E. Car 37, A wooden type, on the 3 line, 1941
- Sacramento City Lines Cars at S.P. Depot
- Sacramento Northern Car 64 on C Street
- P.G. and E Car at Oak Park
- P.G. and E Carbarns at 28t hand N, 1914
- Sacramento Trolley System Map
- A Light Egyptian Chariot
The light chariots of the Egyptians enabled them to secure the fullest advantage from the speed and breeding of their horses, which at the time were considered to be the finest in the world. The Egyptian chariots were sometimes square, but more often they were semi-circular or horse-shoe shape, with the curved front towards the horses. - Biplane
Biplane - Space Shuttle - component isometric
- Space Shuttle - starboard elevation
- Space Shuttle - top plan
- Space Shuttle - forward and Adt elevations
- Space Shuttle - isometric
- Space Shuttle - port elevation
- Out for a ride
- Plan of North Carolina sharpie of the 1880's
Plan of North Carolina sharpie of the 1880's - Plan of North Carolina sharpie schooner taken from remains of boat
- Plan of a Chesapeake Bay terrapin smack
- Plan of a large Chesapeake Bay sharpie taken from remains of boat
- Plan of typical New Haven sharpie showing design and construction characteristics
- Ride in the automobile
- Wenham’s aëroplane, 1866
In 1866, two decades after the flight of Stringfellow’s monoplane, Mr. F. H. Wenham, another Englishman illustrious in the annals of aëronautics, patented the multiplane; that is, an aëroplane comprising two or more superposed surfaces. This proved to be a valuable contribution to the art of aviation, and continues in use at the present time. The device furnished an increase of sustaining surface without enlargement of the ground plan. It moreover lends itself conveniently to a strong and simple trussing of the surfaces. Some designers protest that superposed surfaces blanket one another; but the advantages just named seem amply to compensate for this objectionable feature. If the surfaces be properly spaced, very little interference is found; moreover, any blanketing that may occur diminishes the drift as well as the lift,[20] though not necessarily in the same proportion. Wenham’s aëroplane is illustrated. The rider lies underneath the multiple wings, so as to diminish the resistance to progression through the air. The apparatus could thus be used as an aërial toboggan for coasting down the atmosphere. To prolong the flights two flappers actuated by a treadle were to be employed, their ends being hinged at a point above the operator’s back. Though the device was patented, no very serious efforts were made to operate it practically. Once, indeed, the inventor took his glider to a meadow and mounted it, during a lull in the evening wind, but soon a gust caught him up, carried him some distance from the ground and toppled him over sidewise, breaking some of the surfaces. The machine disclosed some good working principles; but it was inadequately ruddered, and too feebly constructed, to weather the buffets of the prevailing ground currents. - Penaud’s aëroplane toy, 1871
In 1871 M. A. Penaud produced the interesting toy aëroplane shown in the figure. The model is propelled horizontally forward by a single screw, actuated by twisted rubber, and is fastened, as shown, to the middle of a long stick or backbone. The center of mass of the machine is well to the front, tending to plunge the model earthward like a heavy-headed arrow; but this down-diving is promptly checked by the tiny rudder which is so inclined as to counteract the diving proclivity. That is to say the rudder dips so as to receive the aërial impact on its upper surface; which impact increases with the speed of flight and causes the bow to rise, until the weight before the wings just balances the impact on the rudder at the rear. The equilibrium is thus automatic, on the principle expounded by Sir George Cayley sixty years earlier. - Tatin’s aëroplane model, 1879
In 1879 M. Victor Tatin made some very promising tests with the model shown, so promising, in fact, as to convince many that human flight was even then practicable. This little flyer was a twin-screw monoplane mounted on wheels, and actuated by an oscillating compressed air engine, the whole machine weighing 3.85 pounds, and supported by a silk plane measuring 16 by 75 inches. The central body of the aëroplane was a thin steel tube three feet long by four inches in diameter containing the compressed air, and weighing only one pound and a half, though strong enough to endure a pressure of twenty atmospheres. When the model was allowed to run round a board walk 46 feet in diameter, tethered to a stake at the center, it quickly acquired a speed of 18 miles an hour, rose in the air, and flew a distance of fifty feet. - Hargrave’s model screw monoplane, 1891
In 1891, twelve years after Tatin’s experiment, Lawrence Hargrave, of Sydney, Australia, made a similar compressed air monoplane, with a single-screw propeller, but without wheels for launching and lighting. The model, which is shown, had a wing-spread of 20 square feet, weighed about three pounds, and flew 128 feet in eight seconds. The weight carried was at the rate of 90 pounds per horse power, a very encouraging result. Two years later he described a small steam engine which he had developed, weighing 10.7 pounds per horse power, and capable of driving the model about two miles, though he did not use it for that purpose, being engrossed with other researches. - Hargrave’s kite
One interesting outcome of his numerous experiments was the Hargrave Kite, now more familiarly known as the box kite. A good example of his kites is the type shown. This consists of two arched biplanes mounted tandem on a backbone, or connecting framework. The kite floats steadily, and was thought suitable for the body of a flying machine to be driven by an engine and propeller. Thus meteorology is indebted to aëronautics for its most useful kite.