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Robert C. Pringle (tug)
''Robert C. Pringle'', originally named ''Chequamegon'', was a wooden-hulled American tugboat that sank without loss of life on Lake Michigan, near Sheboygan, Wisconsin, on June 19, 1922, after striking an obstruction (possibly floating driftwood). ''Chequamegon'' was built in 1903 in Manitowoc, Wisconsin, by the Manitowoc Shipbuilding & Dry Dock Company. She was built for the newly formed Chequamegon Bay Transportation Company of Ashland, Wisconsin, under whom she hauled freight between Ashland, Bayfield, Washburn and Madeline Island. Between 1904 and 1918, she was sold multiple times, and was renamed ''Pere Marquette 7'' in 1911. In 1918, ''Pere Marquette 7'' was sold to the Pringle Barge Line of Cleveland, Ohio. She was converted to a tug and was renamed ''Robert C. Pringle''. On June 18, 1922, ''Robert C. Pringle'' began towing the wooden bulk freighter ''Venezuela'' from Milwaukee to Sandusky, Ohio, where the ''Venezuela'' was scheduled to receive extensive repairs. At ab ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States
The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territories, nine Minor Outlying Islands, and 326 Indian reservations. The United States is also in free association with three Pacific Island sovereign states: the Federated States of Micronesia, the Marshall Islands, and the Republic of Palau. It is the world's third-largest country by both land and total area. It shares land borders with Canada to its north and with Mexico to its south and has maritime borders with the Bahamas, Cuba, Russia, and other nations. With a population of over 333 million, it is the most populous country in the Americas and the third most populous in the world. The national capital of the United States is Washington, D.C. and its most populous city and principal financial center is New York City. Paleo-Americ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Milwaukee, Wisconsin
Milwaukee ( ), officially the City of Milwaukee, is both the most populous and most densely populated city in the U.S. state of Wisconsin and the county seat of Milwaukee County, Wisconsin, Milwaukee County. With a population of 577,222 at the 2020 United States census, 2020 census, Milwaukee is the List of United States cities by population, 31st largest city in the United States, the fifth-largest city in the Midwestern United States, and the second largest city on Lake Michigan's shore behind Chicago. It is the main cultural and economic center of the Milwaukee metropolitan area, the fourth-most densely populated metropolitan area in the Midwestern United States, Midwest. Milwaukee is considered a global city, categorized as "Gamma minus" by the Globalization and World Cities Research Network, with a regional List of U.S. metropolitan areas by GDP, GDP of over $102 billion in 2020. Today, Milwaukee is one of the most ethnicity, ethnically and Cultural diversity, cult ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mast (sailing)
The mast of a sailing vessel is a tall spar, or arrangement of spars, erected more or less vertically on the centre-line of a ship or boat. Its purposes include carrying sails, spars, and derricks, and giving necessary height to a navigation light, look-out position, signal yard, control position, radio aerial or signal lamp. Large ships have several masts, with the size and configuration depending on the style of ship. Nearly all sailing masts are guyed. Until the mid-19th century, all vessels' masts were made of wood formed from a single or several pieces of timber which typically consisted of the trunk of a conifer tree. From the 16th century, vessels were often built of a size requiring masts taller and thicker than could be made from single tree trunks. On these larger vessels, to achieve the required height, the masts were built from up to four sections (also called masts). From lowest to highest, these were called: lower, top, topgallant, and royal masts. Giving the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ferrysburg, Michigan
Ferrysburg is a city in Ottawa County in the U.S. state of Michigan. The population was 2,892 at the 2010 census. Spring Lake Township borders the city on the north and east, though it is administratively autonomous. The village of Spring Lake is located to the southeast, on the opposite side of Spring Lake from Ferrysburg. The city of Grand Haven is located to the south, on the opposite side of the Grand River. Lake Michigan is to the west of the city. US 31 passes north-south through the city and M-104 has its western terminus at US 31 in Ferrysburg. History Settlement in the area of Ferrysburg began in the 1830s by William Montague Ferry and his family. It was platted in 1857. Geography The city is situated on the north side of the Grand River at its mouth on Lake Michigan. The harbor of Grand Haven and Spring Lake form the southern boundary of the city. According to the United States Census Bureau, the city has a total area of , of which is land and is water. Demo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Montague, Michigan
Montague is a city in Muskegon County in the U.S. state of Michigan. The population was 2,361 at the 2010 census. The city is located within Montague Township, but is politically independent. The Montague ZIP code 49437 also serves all of Montague Township and White River Township, as well as a small portions of Whitehall Township and Blue Lake Township in Muskegon County and parts of Claybanks Township and Grant Township in Oceana County. History and culture Noah Ferry founded the city, naming it in honor of his father, William Montague Ferry, who founded the cities of Grand Haven and Ferrysburg in neighboring Ottawa County. Ferry Church, built in 1874, is named in honor of Noah Ferry, who died fighting for the Union at the Battle of Gettysburg in 1863. At one time, Ferry Street, also named for the founder, was the main street through town. It was named for him because the city's post office operated on that street following its establishment in 1867, and Ferry w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stroke (engine)
In the context of an internal combustion engine, the term stroke has the following related meanings: * A phase of the engine's cycle (e.g. compression stroke, exhaust stroke), during which the piston travels from top to bottom or vice versa. * The type of power cycle used by a piston engine (e.g. two-stroke engine, four-stroke engine). * "Stroke length", the distance travelled by the piston during each cycle. The stroke length––along with bore diameter––determines the engine's displacement. Phases in the power cycle Commonly used engine phases or strokes (i.e. those used in a four-stroke engine) are described below. Other types of engines can have very different phases. Induction-intake stroke The induction stroke is the first phase in a four-stroke (e.g. Otto cycle or Diesel cycle) engine. It involves the downward movement of the piston, creating a partial vacuum that draws a air-fuel mixture (or air alone, in the case of a direct injection engine) into the combus ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bore (engine)
In a piston engine, the bore (or cylinder bore) is the diameter of each cylinder. Engine displacement is calculated based on bore, stroke length and the number of cylinders: displacement = The stroke ratio, determined by dividing the bore by the stroke, traditionally indicated whether an engine was designed for power at high engine speeds (rpm) or torque at lower engine speeds. The term "bore" can also be applied to the bore of a locomotive cylinder or steam engine pistons. Steam locomotive The term bore also applies to the cylinder of a steam locomotive or steam engine. See also * Bore pitch * Compression ratio * Engine displacement Engine displacement is the measure of the cylinder volume swept by all of the pistons of a piston engine, excluding the combustion chambers. It is commonly used as an expression of an engine's size, and by extension as a loose indicator of the ... References {{Steam engine configurations Engine technology ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cylinder (engine)
In a reciprocating engine, the cylinder is the space in which a piston travels. The inner surface of the cylinder is formed from either a thin metallic liner (also called "sleeve") or a surface coating applied to the engine block. A piston is seated inside each cylinder by several metal piston rings, which also provide seals for compression and the lubricating oil. The piston rings do not actually touch the cylinder walls, instead they ride on a thin layer of lubricating oil. Steam engines The cylinder in a steam engine is made pressure-tight with end covers and a piston; a valve distributes the steam to the ends of the cylinder. Cylinders were cast in cast iron and later in steel. The cylinder casting can include other features such as valve ports and mounting feet. Internal combustion engines The cylinder is the space through which the piston travels, propelled to the energy generated from the combustion of the air/fuel mixture in the combustion chamber. In an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Net Register Tonnage
Net register tonnage (NRT, nrt, n.r.t.) is a ship's cargo volume capacity expressed in "register tons", one of which equals to a volume of . It is calculated by subtracting non-revenue-earning spaces i.e. spaces not available for carrying cargo, for example engine rooms, fuel tanks and crew quarters, from the ship's gross register tonnage.Units and Systems of Measurement Their Origin, Development, and Present Status . National Institute of Standards and Technology. Net tonnage is thus used in situations where a vessel's earning capacity is important, rather than its mere size. Net register tonnage is not a measure of the weight of the ship or its cargo, and should not be confused with terms such as |
Manitowoc River
The Manitowoc River is a U.S. Geological Survey. National Hydrography Dataset high-resolution flowline dataThe National Map, accessed December 19, 2011 river in eastern Wisconsin in the United States. It flows into Lake Michigan at the city of Manitowoc. Course The Manitowoc River is formed in eastern Calumet County by its north and south branches: *The South Branch Manitowoc River, the longer of the two at , rises in northeastern Fond du Lac County and flows generally northeastwardly into Calumet County, passing the city of Chilton and collecting the Killsnake River. *The North Branch Manitowoc River rises in northern Calumet County and flows generally southeastwardly. From the confluence of its forks, the Manitowoc flows generally eastwardly through central Manitowoc County to its mouth at Lake Michigan in the city of Manitowoc. Its largest tributary is the Branch River. Little Manitowoc River The Little Manitowoc River is a stream that flows into Lake Michigan about 1&nb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chequamegon Post Card
Chequamegon Bay ( ) is an inlet of Lake Superior in Ashland and Bayfield counties in the extreme northern part of Wisconsin. History A Native American village, known as ''Chequamegon'', developed here in the mid-17th century. It was developed by refugee Petun, Huron, and Ottawa, who were fleeing the Beaver Wars and Iroquois invasions from the East after 1649. Later, Ojibwe people came here to trade, but they were not among the first settlers, according to archeological evidence. The end of Chequamegon Bay is known as the site of the first dwelling in present-day Wisconsin to have been occupied by European men. Two French fur traders, Médard des Groseilliers and Pierre-Esprit Radisson, built a hut somewhere on the west shore of the bay, probably in 1658. Other traders dwelt on this bay in 1660-1663 and were visited in the spring of 1661 by Father René Menard, the first Jesuit missionary to the Northwest. In 1665 Father Claude Allouez built a mission house near the southwest end ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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