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Shay Locomotive
The Shay locomotive is a geared steam locomotive that originated and was primarily used in North America. The locomotives were built to the patents of Ephraim Shay, who has been credited with the popularization of the concept of a ''geared steam locomotive''. Although the design of Ephraim Shay's early locomotives differed from later ones, there is a clear line of development that joins all Shays. Shay locomotives were especially suited to logging, mining and industrial operations and could operate successfully on steep or poor quality track. Development Ephraim Shay (1839–1916), was a schoolteacher, a clerk in an American Civil War hospital, a civil servant, a logger, a merchant, a railway owner, and an inventor who lived in Michigan. In the 1860s, he became a logger and wanted a better way to move logs to the mill than on winter snow sleds. He built his own tramway in 1875, on gauge track on wooden ties, allowing him to log all year round. Two years later he develope ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Boiler
A boiler is a closed vessel in which fluid (generally water) is heated. The fluid does not necessarily boil. The heated or vaporized fluid exits the boiler for use in various processes or heating applications, including water heating, central heating, boiler-based power generation, cooking, and sanitation. Heat sources In a fossil fuel power plant using a steam cycle for power generation, the primary heat source will be combustion of coal, oil, or natural gas. In some cases byproduct fuel such as the carbon monoxide rich offgasses of a coke battery can be burned to heat a boiler; biofuels such as bagasse, where economically available, can also be used. In a nuclear power plant, boilers called steam generators are heated by the heat produced by nuclear fission. Where a large volume of hot gas is available from some process, a heat recovery steam generator or recovery boiler can use the heat to produce steam, with little or no extra fuel consumed; such a configuration is common ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fire-tube Boiler
A fire-tube boiler is a type of boiler in which hot gases pass from a fire through one or more tubes running through a sealed container of water. The heat of the gases is transferred through the walls of the tubes by thermal conduction, heating the water and ultimately creating steam. The fire-tube boiler developed as the third of the four major historical types of boilers: low-pressure tank or "haystack" boilers, flued boilers with one or two large flues, fire-tube boilers with many small tubes, and high-pressure water-tube boilers. Their advantage over flued boilers with a single large flue is that the many small tubes offer far greater heating surface area for the same overall boiler volume. The general construction is as a tank of water penetrated by tubes that carry the hot flue gases from the fire. The tank is usually cylindrical for the most part—being the strongest practical shape for a pressurized container—and this cylindrical tank may be either horizontal or vertic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cadillac, Michigan
Cadillac ( ) is a city in and county seat of Wexford County in the U.S. state of Michigan. The population was 10,371 at the 2020 census, which ranks it the third most-populated city in the Northern Michigan region after Traverse City and Alpena. Cadillac was settled as early as 1871 and formerly known as the village of Clam Lake before incorporating as a city in 1877. The city is the junction of several major highways, including U.S. Route 131, M-55, and M-115. The geographic center of Michigan is approximately north-northwest of Cadillac. Cadillac is the central city of the Cadillac micropolitan area, which includes all of Wexford County and Missaukee County to the east, and had population of 48,725 at the 2020 census. History Village of Clam Lake European explorers and fur traders visited this area from the 18th century, most of them initially French and French-Canadians who traded with regional Native Americans. More permanent communities were not established unt ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Michigan Iron Works
Michigan () is a state in the Great Lakes region of the upper Midwestern United States. With a population of nearly 10.12 million and an area of nearly , Michigan is the 10th-largest state by population, the 11th-largest by area, and the largest by area east of the Mississippi River.''i.e.'', including water that is part of state territory. Georgia is the largest state by land area alone east of the Mississippi and Michigan the second-largest. Its capital is Lansing, and its largest city is Detroit. Metro Detroit is among the nation's most populous and largest metropolitan economies. Its name derives from a gallicized variant of the original Ojibwe word (), meaning "large water" or "large lake". Michigan consists of two peninsulas. The Lower Peninsula resembles the shape of a mitten, and comprises a majority of the state's land area. The Upper Peninsula (often called "the U.P.") is separated from the Lower Peninsula by the Straits of Mackinac, a channel that joins Lake H ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Willamette Locomotive
The Willamette locomotive was a geared steam locomotive of the Shay locomotive type, built by the Willamette Iron and Steel Works of Portland, Oregon. After key patents on the Shay locomotive had expired, it was possible for other manufacturers to produce Shay "clones". The Willamette locomotive was very similar to a Shay, but had many differences, as the company that made them intended on making an "improved Shay", even though the "Pacific Coast Shay", later made by Lima, took up many of the features on the Willamette. The differences were: *All Willamettes were equipped with superheaters, while Shays usually were not. *The boiler parts were riveted together, instead of being bolted together. *The Willamette locomotive used Walschaerts valve gear driving piston valves, while the Shay mainly used Stephenson valve gear driving slide valves. *The truck design was completely redone and rode much smoother. *The rear cylinder on the Willamette was facing the same direction as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Portland, Oregon
Portland (, ) is a port city in the Pacific Northwest and the largest city in the U.S. state of Oregon. Situated at the confluence of the Willamette and Columbia rivers, Portland is the county seat of Multnomah County, the most populous county in Oregon. Portland had a population of 652,503, making it the 26th-most populated city in the United States, the sixth-most populous on the West Coast, and the second-most populous in the Pacific Northwest, after Seattle. Approximately 2.5 million people live in the Portland metropolitan statistical area (MSA), making it the 25th most populous in the United States. About half of Oregon's population resides within the Portland metropolitan area. Named after Portland, Maine, the Oregon settlement began to be populated in the 1840s, near the end of the Oregon Trail. Its water access provided convenient transportation of goods, and the timber industry was a major force in the city's early economy. At the turn of the 20th century, the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Willamette Iron And Steel Works
Willamette Iron Works (also known as Willamette Iron and Steel Company or WISCO) was a general foundry and machine business established in 1865 in Portland, Oregon, originally specializing in the manufacture of steamboat boilers and engines. In 1904, the company changed its name to Willamette Iron and Steel Works, under which name it operated continually until its close in 1990. The works was very busy during the World War I shipbuilding boom, building boilers for Northwest Steel and Albina Engine & Machine Works in Portland, G. M. Standifer Construction in Vancouver, Alameda Works Shipyard, Union Iron Works, Western Pipe and Steel, Schaw-Batcher and the Moore Dry Dock Company in San Francisco, Southwestern Shipbuilding Company, Southwestern Shipbuilding and the Long Beach Shipbuilding Company in Los Angeles, Skinner & Eddy, J. F. Duthie & Company, J. F. Duthie and Ames Shipbuilding and Dry Dock Company, Ames in Seattle and Todd Dry Dock and Construction Company, Todd Construct ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Percentage
In mathematics, a percentage (from la, per centum, "by a hundred") is a number or ratio expressed as a fraction of 100. It is often denoted using the percent sign, "%", although the abbreviations "pct.", "pct" and sometimes "pc" are also used. A percentage is a dimensionless number (pure number); it has no unit of measurement. Examples For example, 45% (read as "forty-five per cent") is equal to the fraction , the ratio 45:55 (or 45:100 when comparing to the total rather than the other portion), or 0.45. Percentages are often used to express a proportionate part of a total. (Similarly, one can also express a number as a fraction of 1,000, using the term "per mille" or the symbol "".) Example 1 If 50% of the total number of students in the class are male, that means that 50 out of every 100 students are male. If there are 500 students, then 250 of them are male. Example 2 An increase of $0.15 on a price of $2.50 is an increase by a fraction of = 0.06. Expressed as a p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grade (slope)
The grade (also called slope, incline, gradient, mainfall, pitch or rise) of a physical feature, landform or constructed line refers to the tangent of the angle of that surface to the horizontal. It is a special case of the slope, where zero indicates horizontality. A larger number indicates higher or steeper degree of "tilt". Often slope is calculated as a ratio of "rise" to "run", or as a fraction ("rise over run") in which ''run'' is the horizontal distance (not the distance along the slope) and ''rise'' is the vertical distance. Slopes of existing physical features such as canyons and hillsides, stream and river banks and beds are often described as grades, but typically grades are used for human-made surfaces such as roads, landscape grading, roof pitches, railroads, aqueducts, and pedestrian or bicycle routes. The grade may refer to the longitudinal slope or the perpendicular cross slope. Nomenclature There are several ways to express slope: # as an ''angle'' of inc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alamogordo, New Mexico
Alamogordo () is the seat of Otero County, New Mexico, United States. A city in the Tularosa Basin of the Chihuahuan Desert, it is bordered on the east by the Sacramento Mountains and to the west by Holloman Air Force Base. The population was 31,358 as of the 2020 census. Alamogordo is known for its connection with the 1945 Trinity test, which was the first ever explosion of an atomic bomb. Humans have lived in the Alamogordo area for at least 11,000 years. The present settlement, established in 1898 to support the construction of the El Paso and Northeastern Railroad, is an early example of a planned community. The city was incorporated in 1912. Tourism became an important economic factor with the creation of White Sands National Monument in 1933, which is still one of the biggest attractions of the city today. During the 1950s–60s, Alamogordo was an unofficial center for research on pilot safety and the developing United States' space program. Alamogordo is a ch ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
El Paso And Northeastern Railway
The El Paso and Northeastern Railway (EP&NE) was a short line railroad that was built around the beginning of the twentieth century to help connect the industrial and commercial center at El Paso, Texas, with physical resources and the United States' national transportation hub in Chicago. Founded by Charles Eddy, the EP&NE was the primary railroad in a system organized under the New Mexico Railway and Coal Company (NMRy&CCo), a holding company which owned several other railroads and also owned mining and industrial properties served by the lines. The EP&NE first connected El Paso with Alamogordo, New Mexico, in 1897, further extensions allowed for tourist excursions to the Sacramento Mountains and some timber extraction. A link with the Chicago, Rock Island and Pacific Railroad (CRI&P) allowed for the introduction of the ''Golden State Limited'' in 1902. When a line connecting to lucrative coalfields was secured, the holding company and its system were folded into the El Paso a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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