Penaud next directed his attention to the construction of a model, to be propelled by a screw and sustained by an elastic aeroplane extending horizontally.
Having first determined by experiment - for which he was given special facilities by the admiralty - what are the manoeuvring powers of ships propelled by steam under varying conditions of speed and helm, he proceeded to devise a system of tactics based on these data.
The carriage itself had been lost long before; but we know that about the year 1600 Stevinus, with Prince Maurice of Orange and twenty-six others, made use of it on the seashore between Scheveningen and Petten, that it was propelled solely by the force of the wind, and that it acquired a speed which exceeded that of horses.
The sheet is laid to a back mark on the tapes, and is propelled between two rollers s FIG.
In January 1812 he placed on the Clyde a steamboat (which he named the "Comet") of about 25 tons, propelled by an engine of three horse power, at a speed of 7 m.
Some of the largest machines - propelled by motor power - are capable of taking eight or more frames at one time.
British railways also undertake the collection and delivery of freight, in addition to transporting it, and thus an extensive range of vans and wagons, whether drawn by horses or mechanically propelled, must be provided in connexion with an important station.
The dorsal vessel is prolonged anteriorly into an aorta, through which the blood is propelled into the great After Miall and Denny, The Cockroach, Lovell body-cavity or haemoReeve & Co.
The American craft was propelled by poling, paddling, rowing, and by rude sails of matting.
The technical name, Notonecta, meaning "back-swimmer," alludes to the habit of the insect of swimming upside down, the body being propelled through the water by powerful strokes of the hind legs, which are fringed with hair and, when at rest, are extended laterally like a pair of sculls in a boat.
- Elastic Spiral Wing, its action, to form a mobile heli vibrate by a direct piston action, propelled vertically, horizontally a b, Anterior margin of wing, to which the neurae or ribs are affixed.
This model, which was shown at the exhibition of the Aeronautical Society of Great Britain at the Crystal Palace in 1868, consisted of two superposed screws propelled by an engine, the steam for which was generated (for lightness) in an aluminium boiler.
48) consisted of a platform, on which stood a large water-tube boiler, a number of concavo-convex aeroplanes arranged in tiers like shelves, each making a slight upward angle with the horizon, two very large vertical screws placed aft and propelled by steam engines, tanks for the storage of water, naphtha, &c. The boiler was especially noteworthy.
He constructed models to fly by three different methods: - (a) by means of screws acting vertically upwards; (b) by aeroplanes propelled horizontally by screws; and (c) by wings which FIG.
She turned slowly, propelled by a tender breeze from the cold night air that filled the room with a chill of death.
She hurried to her greencar, trailed by the self-propelled suitcase.
Long, propelled by 8 men.
The hinder portion of the body being drawn of ter, some part of it (c) finds another support on the rough ground or a projection; and, the anterior bends being stretched in a straight line, the front part of the body is propelled (from a to d) in consequence.
In connexion with this traffic there is a large fleet of tug boats; but steamor petroleum-propelled barges are becoming more common.
The sheets were laid or fed to certain marks between the frisket and tympan, and when these were closed together the carriage was propelled under the platen and the impression was given to that portion of the machine, while at the other end another sheet was being fed in ready to receive its impression in due course.
Then came the material agent, machinery propelled by steam.
An implement, sometimes propelled by steam, known as the draining plough, can be used for opening the trenches.