A pump is a device that moves fluids, or sometimes slurries, by mechanical action, typically converted from electrical energy into hydraulic energy.
A submarine is a watercraft capable of independent operation underwater. It differs from a submersible, which has more limited underwater capability. The term is also sometimes used historically or colloquially to refer to remotely operated vehicles and robots, as well as medium-sized or smaller vessels, such as the midget submarine and the wet sub. Submarines are referred to as boats rather than ships irrespective of their size.
A torpedo boat is a relatively small and fast naval ship designed to carry torpedoes into battle. The first designs were steam-powered craft dedicated to ramming enemy ships with explosive spar torpedoes. Later evolutions launched variants of self-propelled Whitehead torpedoes.
The Archimedes' screw, also known as the Archimedean screw, hydrodynamic screw, water screw or Egyptian screw, is one of the earliest hydraulic machines. Using Archimedes screws as water pumps dates back many centuries. As a machine used for transferring water from a low-lying body of water into irrigation ditches, water is pumped by turning a screw-shaped surface inside a pipe. In the modern world, Archimedes screw pumps are widely used in wastewater treatment plants and for dewatering low-lying regions. Archimedes Screws Turbines (ASTs) are a new form of small hydroelectric powerplant that can be applied even in low head sites. Archimedes screw generators operate in a wide range of flows and heads, including low heads and moderate flow rates that is not ideal for traditional turbines and not occupied by high performance technologies. The Archimedes screw is a reversible hydraulic machine, and there are several examples of Archimedes screw installations where the screw can operate at different times as either pump or generator, depending on needs for power and watercourse flow.
Spuyten Duyvil is a neighborhood of the Bronx, New York City. It is bounded on the north by Riverdale, on the east by Kingsbridge, on the south by the Harlem River, and on the west by the Hudson River, although some consider it to be the southernmost part of Riverdale.
A spar torpedo is a weapon consisting of a bomb placed at the end of a long pole, or spar, and attached to a boat. The weapon is used by running the end of the spar into the enemy ship. Spar torpedoes were often equipped with a barbed spear at the end, so it would stick to wooden hulls. A fuse could then be used to detonate it.
A thermal power station is a type of power station in which heat energy is converted to electrical energy. In a steam-generating cycle heat is used to boil water in a large pressure vessel to produce high-pressure steam, which drives a steam turbine connected to an electrical generator. The low-pressure exhaust from the turbine enters a steam condenser where it is cooled to produce hot condensate which is recycled to the heating process to generate more high pressure steam. This is known as a Rankine cycle.
HMS Vixen was an armoured composite gunboat, the only ship of her class, and the third ship of the Royal Navy to bear the name. She was the first Royal Navy vessel to have twin propellers.
Yarrow boilers are an important class of high-pressure water-tube boilers. They were developed by Yarrow & Co. (London), Shipbuilders and Engineers and were widely used on ships, particularly warships.
Three-drum boilers are a class of water-tube boiler used to generate steam, typically to power ships. They are compact and of high evaporative power, factors that encourage this use. Other boiler designs may be more efficient, although bulkier, and so the three-drum pattern was rare as a land-based stationary boiler.
SMS Friedrich Carl was an ironclad warship built for the Prussian Navy in the mid-1860s. The ship was constructed in the French Société Nouvelle des Forges et Chantiers de la Méditerranée shipyard in Toulon; her hull was laid in 1866 and launched in January 1867. The ship was commissioned into the Prussian Navy in October 1867. The ship was the third ironclad ordered by the Prussian Navy, after Arminius and Prinz Adalbert, though the fourth ship to be acquired, Kronprinz, was ordered after but commissioned before Friedrich Carl.
The Chaplin's patent distilling apparatus with Steam pump for circulating water attached was an early design of an evaporator, a device for producing fresh water on board ship by distillation of seawater. An example of this apparatus has been recovered from the wreck of SS Xantho (1872), an auxiliary steamship used in Australia to transport passengers and trade goods before ultimately sinking in Port Gregory, Western Australia in 1872. It is purported that the Alexander Chaplin distiller from the Xantho wreck is the only known surviving example of a Chaplin distilling apparatus on board a vessel of this period.
TSS (RMS) Mona's Queen (III) No. 145308, was a ship built for the Isle of Man Steam Packet Company in 1934. The steamer, which was the third vessel in the company's history to bear the name, was one of five ships to be specially commissioned by the company between 1927 and 1937. They were replacements for the various second-hand steamers that had been purchased to replace the company's losses during the First World War. However, the life of the Mona's Queen proved to be short: six years after being launched she was sunk by a sea mine during the Dunkirk evacuation on 29 May 1940.
The Battle of Trent's Reach was one of the final major naval battles of the American Civil War. Beginning on January 23, 1865, a powerful flotilla of Confederate warships bombarded Fort Brady along the James River and engaged four Union Navy ships with the intention of breaking through the blockade to attack City Point, the base of General Ulysses S. Grant who was besieging Petersburg, Virginia. After two days of fighting, the rebels withdrew back up the river without completing their objectives.
A steam generator is a form of low water-content boiler, similar to a flash steam boiler. The usual construction is as a spiral coil of water-tube, arranged as a single, or monotube, coil. Circulation is once-through and pumped under pressure, as a forced-circulation boiler. The narrow-tube construction, without any large-diameter drums or tanks, means that they are safe from the effects of explosion, even if worked at high pressures. The pump flowrate is adjustable, according to the quantity of steam required at that time. The burner output is throttled to maintain a constant working temperature. The burner output required varies according to the quantity of water being evaporated: this can be either adjusted by open-loop control according to the pump throughput, or by a closed-loop control to maintain the measured temperature.
The Goito class was a group of four torpedo cruisers built for the Italian Regia Marina in the 1880s. The members of the class were Goito, Montebello, Monzambano, and Confienza. They were among the first torpedo cruisers built for the Italian fleet, and were built to improve on the previous vessel, Tripoli. Experimental ships, the four Goito-class vessels varied in their dimensions, machinery, and armament, though all were comparable in terms of capabilities, having a top speed of 17 to 18 knots and carrying an armament of four or five 14-inch (360 mm) torpedo tubes.
SMS Zara was a torpedo cruiser of the Austro-Hungarian Navy, the lead ship of the Zara class. She was laid down in August 1878, launched in November 1879, and commissioned into the fleet in July 1882. The ship was armed with a battery of light guns and four torpedo tubes. She proved to be poorly designed, being too slow for use as a fleet scout or as a flotilla leader for torpedo boats, so she saw little active service. Throughout the 1880s and 1890s, she was frequently in reserve, being activated infrequently to participate in training exercises. She served as a guard ship in Cattaro Bay for most of World War I, before being withdrawn for use as a cadet training ship in June 1917. She served in this capacity until the end of the war in 1918, and was ceded to Italy as a war prize in 1920. The Italian Navy had no use for the vessel, and sold her to ship breakers in 1921.
The Zara class was a class of three torpedo cruisers built for the Austro-Hungarian Navy in the late 1870s and early 1880s; they were the first large torpedo-armed warships built by Austria-Hungary. The class comprised three ships, Zara, Spalato, and Sebenico; the last vessel was built to a slightly different design, and is sometimes not counted as a member of the class. The design was prepared by Josef von Romako, the Chief Constructor of the Austro-Hungarian Navy, after a lengthy design process throughout the 1870s. The first two ships were armed with deck-mounted torpedo tubes, while Sebenico received an experimental tube in her bow, submerged below the waterline.
The Reed water tube boiler was a type of water tube boiler developed by J. W. Reed, manager of the engine works at Palmers Shipbuilding and Iron Company of Jarrow, England, where it was manufactured from 1893 to 1905. At this time, Palmers was a vertically integrated business: in its shipyard at Jarrow, using iron ore from its own mine in North Yorkshire, it produced the iron and steel needed for its ships, and engines and boilers of its own design.
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