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Rotary Snowplow
A rotary snowplow (American English) or rotary snowplough is a piece of railroad snow removal equipment with a large circular set of blades on its front end that rotate to cut through the snow on the track ahead of it. The precursor to the rotary snowplow was the wedge snowplow. History The rotary was invented in Toronto, Canada, by dentist J.W. Elliot in 1869. He never built a working model or prototype. Orange Jull of Orangeville, Ontario, expanded on Elliot's design, building working models he tested with sand. During the winter of 1883–84, Jull contracted with the Leslie Brothers of Toronto to build a full-size prototype that proved successful. Jull later sold his design rights to Leslie Brothers, who formed the Rotary Steam Shovel Manufacturing Company in Paterson, New Jersey. Leslie Brothers contracted with Cooke Locomotive & Machine Works in Paterson to do the actual construction. Another inventor is said to be Colonel Lewis P. Campbell. He is listed in US patent 184855 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rotary Snow Plow Train And Unknown Persons - DPLA - 7a393f3e045fad3629d6aaad268b3121
Rotary may refer to: General * Rotary motion Engineering and technology * Rotary dial, a rotating telephone dial * Rotary engine (other), multiple types of engines called "rotary" * Rotary latch * Rotary milking shed, a type of milking shed used in the dairy industry * Rotary snowplow, one type of railroad snowplow used especially for deep snow removal * Rotary system, a type of pre-electronic telephone switch * Rotary table (drilling rig), a device used to apply directional force to a drill string * Rotary tiller, a motorised cultivator * Rotary woofer, a type of loudspeaker capable of producing very low frequency sound * Rotary wing aircraft Arts and entertainment * "The Rotary", a song by Andy Partridge from ''Take Away / The Lure of Salvage ''Take Away'' and ''The Lure of Salvage'' are sides one and two, respectively, of the debut record by English musician Andy Partridge (credited as "Mr. Partridge"). Co-produced with John Leckie, the LP was released in Febru ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
City Of San Francisco (train)
The ''City of San Francisco'' was a streamlined through passenger train which ran from 1936 to 1971 on the Overland Route between Chicago, Illinois and Oakland, California, with a ferry connection on to San Francisco. It was owned and operated jointly by the Chicago and North Western Railway (1936–55), Chicago, Milwaukee, St. Paul and Pacific Railroad (1955–71), the Union Pacific Railroad, and the Southern Pacific Railroad. It provided premium extra fare service from Chicago to San Francisco when introduced in 1936 with a running time of 39 hours and 45 minutes each way. Overview As with the ''City of Los Angeles'', many of the train's cars bore the names of locales around its namesake city, including ''Mission Dolores'', the nickname given to San Francisco's Mission San Francisco de Asís. Competing streamlined passenger trains were, starting in 1949, the ''California Zephyr'' on the Western Pacific (WP), Denver and Rio Grande Western (D&RGW), and Chicago, Burlington an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Colorado And Southern Railway
The Colorado and Southern Railway was an American Class I railroad in the western United States that operated independently from 1898 to 1908, then as part of the Chicago, Burlington and Quincy Railroad until it was absorbed into the Burlington Northern Railroad in 1981. The railway began as the consolidation of bankrupt railroads in 1898. The Colorado Central Railroad and Cheyenne and Northern Railway were brought together to form the Union Pacific, Denver and Gulf Railway in 1890. When Union Pacific went bankrupt in 1893 they were separated from the Union Pacific and united with the Denver, Leadville and Gunnison Railway and others, by Frank Trumbull to form the Colorado and Southern Railroad in 1898. In 1908 the Chicago, Burlington and Quincy Railroad bought control of the C&S. It would later merge into the Burlington Northern Railroad in 1981. At the end of 1970 it operated 692 miles of road on 1116 miles of track; that year it reported of revenue freight. In 19 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anchorage, Alaska
Anchorage () is the largest city in the U.S. state of Alaska by population. With a population of 291,247 in 2020, it contains nearly 40% of the state's population. The Anchorage metropolitan area, which includes Anchorage and the neighboring Matanuska-Susitna Borough, had a population of 398,328 in 2020, accounting for more than half the state's population. At of land area, the city is the fourth-largest by area in the United States and larger than the smallest state, Rhode Island, which has . Anchorage is in Southcentral Alaska, at the terminus of the Cook Inlet, on a peninsula formed by the Knik Arm to the north and the Turnagain Arm to the south. In September 1975, the City of Anchorage merged with the Greater Anchorage Area Borough, creating the Municipality of Anchorage. The municipal city limits span , encompassing the urban core, a joint military base, several outlying communities, and almost all of Chugach State Park. Because of this, less than 10% of the Municipalit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Potter Section House
The Potter Section House is a historic section house in Anchorage Borough, Alaska. It is located at Mile 115.3 of the Seward Highway and Mile 100.6 of the Alaska Railroad. It is a -story wood-frame structure with a gable roof. The main facade has a center entrance flanked by sash windows, while the rear facade also has an entrance but only a single window. Built in 1929 to a slight variation from a standard plan, it is the last of four section houses to survive on the Anchorage stretch of the railroad. The building was used as housing for workers on the surround section of railroad until section-based maintenance was discontinued in 1978. It currently hosts the Chugach State Park headquarters. The house was listed on the National Register of Historic Places in 1985. See also *National Register of Historic Places listings in Anchorage, Alaska __NOTOC__ This is a list of the National Register of Historic Places listings in Anchorage, Alaska. This is intended to be a compl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alaska Railroad
Alaska ( ; russian: Аляска, Alyaska; ale, Alax̂sxax̂; ; ems, Alas'kaaq; Yup'ik: ''Alaskaq''; tli, Anáaski) is a state located in the Western United States on the northwest extremity of North America. A semi-exclave of the U.S., it borders the Canadian province of British Columbia and the Yukon territory to the east; it also shares a maritime border with the Russian Federation's Chukotka Autonomous Okrug to the west, just across the Bering Strait. To the north are the Chukchi and Beaufort Seas of the Arctic Ocean, while the Pacific Ocean lies to the south and southwest. Alaska is by far the largest U.S. state by area, comprising more total area than the next three largest states (Texas, California, and Montana) combined. It represents the seventh-largest subnational division in the world. It is the third-least populous and the most sparsely populated state, but by far the continent's most populous territory located mostly north of the 60th parallel, with a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Slug (railroad)
In railroading, a slug is a version of a diesel-electric locomotive which lacks a prime mover, and often a cab. It derives the electrical power needed to operate its traction motors and motor controls from a fully-powered mother locomotive. When coupled together it takes advantage of the excess current that the mother's diesel-electric locomotive produces at low speed, providing additional horsepower and braking at such operation without the expense of a full locomotive. A slug is distinct from a B–unit, which has both a prime mover and traction motors but no cab. A slug may retain an operator's cab to allow engineers to operate a train with the slug in the lead, or may have the cab and much of the body removed to save space and allow the operator in the mother better rear visibility. Basic principles A slug is used to increase adhesive weight, allowing full power to be applied at a lower speed, thus allowing a higher maximum tractive effort. They are often used in low-s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Traction Motor
A traction motor is an electric motor used for propulsion of a vehicle, such as locomotives, electric vehicle, electric or hydrogen vehicles, elevators or electric multiple unit. Traction motors are used in electrically powered rail vehicles (electric multiple units) and other electric vehicles including electric milk floats, elevators, roller coasters, conveyors, and trolleybuses, as well as vehicles with electrical transmission systems (Diesel locomotive#Transmission types, diesel-electric locomotives, electric hybrid vehicles), and battery electric vehicles. Motor types and control DC motor, Direct-current motors with series Field coil, field windings are the oldest type of traction motors. These provide a speed-torque characteristic useful for propulsion, providing high torque at lower speeds for acceleration of the vehicle, and declining torque as speed increases. By arranging the field winding with multiple taps, the speed characteristic can be varied, allowing relatively ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Railfan
A railfan, rail buff or train buff (American English), railway enthusiast, railway buff or trainspotter (Australian/British English), or ferroequinologist is a person who is recreationally interested in trains and rail transport systems. Railfans often combine their interest with other hobbies, especially photography and videography, radio scanning, railway modelling, studying railroad history and participating in railway station and rolling stock preservation efforts. There are many magazines and websites dedicated to railfanning and railway enthusiasts, including ''Trains'', ''Railfan & Railroad ''Railfan & Railroad'' is an American monthly magazine that has been in publication since the 1970s. It was the first magazine title established in-house by Carstens Publications. As a magazine dedicated to trains and rail transportation, it stands ...'', ''The Railway Magazine'', ''Locomotive Publishing Company, Locomotive Magazine'', and ''Railway Gazette International''. Other n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
White Pass And Yukon Route
The White Pass and Yukon Route (WP&Y, WP&YR) is a Canadian and U.S. Class III narrow-gauge railroad linking the port of Skagway, Alaska, with Whitehorse, the capital of Yukon. An isolated system, it has no direct connection to any other railroad. Equipment, freight and passengers are ferried by ship through the Port of Skagway, and via road through a few of the stops along its route. The railroad began construction in 1898 during the Klondike Gold Rush as a means of reaching the goldfields. With its completion in 1900, it became the primary route to the interior of the Yukon, supplanting the Chilkoot Trail and other routes. The route continued operation until 1982, and in 1988 was partially revived as a heritage railway. In July 2018, the railway was purchased by Carnival Corporation & plc. For many years the railroad was a subsidiary of Tri White Corporation, also the parent of Clublink, and operated by the Pacific and Arctic Railway and Navigation Company (in Alaska), the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Union Pacific Railroad
The Union Pacific Railroad , legally Union Pacific Railroad Company and often called simply Union Pacific, is a freight-hauling railroad that operates 8,300 locomotives over routes in 23 U.S. states west of Chicago and New Orleans. Union Pacific is the second largest railroad in the United States after BNSF, with which it shares a duopoly on transcontinental freight rail lines in the Western, Midwestern and Southern United States. Founded in 1862, the original Union Pacific Rail Road was part of the first transcontinental railroad project, later known as the Overland Route. Over the next century, UP absorbed the Missouri Pacific Railroad, the Chicago and North Western Transportation Company, the Western Pacific Railroad, the Missouri–Kansas–Texas Railroad and the Chicago, Rock Island and Pacific Railroad. In 1996, the Union Pacific merged with Southern Pacific Transportation Company, itself a giant system that was absorbed by the Denver and Rio Grande Western Railroad ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Snowpack
Snowpack forms from layers of snow that accumulate in geographic regions and high elevations where the climate includes cold weather for extended periods during the year. Snowpacks are an important water resource that feed streams and rivers as they melt. Therefore, snowpacks are both the drinking water source for many communities and a potential source of flooding (in case of sudden melting). Snowpacks also contribute mass to glaciers in their accumulation zone. Assessing the formation and stability of snowpacks is important in the study and prediction of avalanches. Scientists study the physical properties of snow under different conditions and their evolution, and more specifically snow metamorphism, snow hydrology (that is, the contribution of snow melt to catchment hydrology), the evolution of snow cover with climate change and its effect on the ice–albedo feedback and hydrology, both on the ground and by using remote sensing. Snow is also studied in a more global context o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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