A Pelton wheel is an impulse-type water turbine invented by American inventor Lester Allan Pelton in the 1870s. The Pelton wheel extracts energy from the impulse of moving water, as opposed to water's dead weight like the traditional overshot water wheel. Many earlier variations of impulse turbines existed, but they were less efficient than Pelton's design. Water leaving those wheels typically still had high speed, carrying away much of the dynamic energy brought to the wheels. Pelton's paddle geometry was designed so that when the rim ran at half the speed of the water jet, the water left the wheel with very little speed; thus his design extracted almost all of the water's impulse energy—which allowed for a very efficient turbine.
A turbine is a rotary mechanical device that extracts energy from a fluid flow and converts it into useful work. The work produced by a turbine can be used for generating electrical power when combined with a generator. A turbine is a turbomachine with at least one moving part called a rotor assembly, which is a shaft or drum with blades attached. Moving fluid acts on the blades so that they move and impart rotational energy to the rotor. Early turbine examples are windmills and waterwheels.
A water turbine is a rotary machine that converts kinetic energy and potential energy of water into mechanical work.
A machine is a mechanical structure that uses power to apply forces and control movement to perform an intended action. Machines can be driven by animals and people, by natural forces such as wind and water, and by chemical, thermal, or electrical power, and include a system of mechanisms that shape the actuator input to achieve a specific application of output forces and movement. They can also include computers and sensors that monitor performance and plan movement, often called mechanical systems.
A cross-flow turbine, Bánki-Michell turbine, or Ossberger turbine is a water turbine developed by the Australian Anthony Michell, the Hungarian Donát Bánki and the German Fritz Ossberger. Michell obtained patents for his turbine design in 1903, and the manufacturing company Weymouth made it for many years. Ossberger's first patent was granted in 1933, and he manufactured this turbine as a standard product. Today, the company founded by Ossberger is the leading manufacturer of this type of turbine.
The bypass ratio (BPR) of a turbofan engine is the ratio between the mass flow rate of the bypass stream to the mass flow rate entering the core. A 10:1 bypass ratio, for example, means that 10 kg of air passes through the bypass duct for every 1 kg of air passing through the core.
The Morris Canal (1829–1924) was a 107-mile (172 km) common carrier coal canal across northern New Jersey in the United States that connected the two industrial canals at Easton, Pennsylvania, across the Delaware River from its western terminus at Phillipsburg, New Jersey, to New York Harbor and the New York City markets via its eastern terminals in Newark and on the Hudson River in Jersey City, New Jersey.
An aeolipile, aeolipyle, or eolipile, also known as a Hero's engine, is a simple, bladeless radial steam turbine which spins when the central water container is heated. Torque is produced by steam jets exiting the turbine. The Greco-Egyptian mathematician and engineer Hero of Alexandria described the device in the 1st century AD, and many sources give him the credit for its invention. However, Vitruvius was the first to describe this appliance in his De architecura.
A propulsor is a mechanical device that gives propulsion. The word is commonly used in the marine vernacular, and implies a mechanical assembly that is more complicated than a propeller. The Kort nozzle, pump-jet and rim-driven thruster are examples.
Turbomachinery, in mechanical engineering, describes machines that transfer energy between a rotor and a fluid, including both turbines and compressors. While a turbine transfers energy from a fluid to a rotor, a compressor transfers energy from a rotor to a fluid.
Knight Foundry, also known as Knight's Foundry and Shops, is a cast iron foundry and machine shop in Sutter Creek, California. It was established in 1873 to supply heavy equipment and repair facilities to the gold mines and timber industry of the Mother Lode. Samuel N. Knight developed a high speed, cast iron impulse water turbine which was a forerunner of the Pelton wheel design. Knight Wheels were used in some of the first hydroelectric plants in California, Utah, and Oregon. This site is the last water-powered foundry and machine shop in the United States. A 42-inch (107 cm) Knight Wheel drives the main line shaft, with smaller water motors powering other machines.
Hopatcong State Park is a state park in the Landing section of Roxbury Township, New Jersey. Operated and maintained by the New Jersey Division of Parks and Forestry, the park consists of two discrete parcels of land, one that encompasses Lake Hopatcong and a parcel of land on its southwestern shore, and another that encompasses Lake Musconetcong about one mile to the west-southwest.
Lake Hopatcong is a commuter railroad station for New Jersey Transit. The station, located in the community of Landing in Roxbury Township, Morris County, New Jersey, United States, serves trains for the Montclair-Boonton Line and Morristown Line at peak hours and on holiday weekends. Service from Lake Hopatcong provides to/from Hackettstown to New York Penn Station and Hoboken Terminal. The stop is located on the tracks below Landing Road next to the eponymous Lake Hopatcong. The station consists of one active and one abandoned side platform, along with a shelter on the active platform. There is no accessibility for handicapped persons under the Americans with Disabilities Act of 1990.
Hacienda Buena Vista, also known as Hacienda Vives, was a coffee plantation located in Barrio Magueyes, Ponce, Puerto Rico. The original plantation dates from the 19th century. The plantation was started by Don Salvador de Vives in 1833.
The South Hadley Canal was a canal along the Connecticut River in South Hadley, Massachusetts. It was the earliest navigable canal in the United States, with operation commencing in 1795. It has been listed on the National Register of Historic Places as the South Hadley Canal Historic District.
The Landing Masonry Bridge, also designated Bridge 44.53, is a 136-foot (41 m) stone structure built in 1907 by the Delaware, Lackawanna and Western Railroad in Landing, New Jersey, United States. Located 44.53 miles up the rail line from Hoboken Terminal, the bridge carries the two-lane Morris County Route 631 over the Morristown Line and Montclair-Boonton Line railroad tracks maintained by New Jersey Transit, and sits several hundred feet north of NJT's Lake Hopatcong Station. Now deteriorated and structurally deficient, it is to be replaced with a four-lane bridge by NJT and the New Jersey Department of Transportation.
Robert Barker was a British physician and inventor. He was a Fellow of the Royal Society from 1732.
Museo Hacienda Buena Vista is a historic coffee plantation farm museum in Barrio Magueyes, Ponce, Puerto Rico. The museum opened in 1986, and receives some 40,000 visitors a year. The museum has been described as "Puerto Rico's first living museum of art and science."
Port Warren is an unincorporated community located within Greenwich Township in Warren County, New Jersey.
Bowerstown is an unincorporated community in Washington Township, Warren County, New Jersey near the Morris Canal and the Pohatcong Creek. It was founded in 1829 by Jesse Vanetta and Michael B. Bowers with the building of an iron foundry. The Bowerstown Historic District, encompassing the village, was listed on the state and national registers of historic places in 1996.
