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Half-tracks
A half-track is a civilian or military vehicle with regular wheels at the front for steering and continuous tracks at the back to propel the vehicle and carry most of the load. The purpose of this combination is to produce a vehicle with the cross-country capabilities of a tank and the handling of a wheeled vehicle. Performance The main advantage of half-tracks over wheeled vehicles is that the tracks reduce the pressure on any given area of the ground by spreading the vehicle's weight over a larger area, which gives it greater mobility over soft terrain like mud and snow, while they do not require the complex steering mechanisms of fully tracked vehicles, relying instead on their front wheels to direct the vehicle, augmented in some cases by track braking controlled by the steering wheel. It is not difficult for someone who can drive a car to drive a half-track, which is a great advantage over fully tracked vehicles, which require specialized training. Half-tracks thus facil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Continuous Track
Continuous track is a system of vehicle propulsion used in tracked vehicles, running on a continuous band of treads or track plates driven by two or more wheels. The large surface area of the tracks distributes the weight of the vehicle better than steel or rubber tires on an equivalent vehicle, enabling continuous tracked vehicles to traverse soft ground with less likelihood of becoming stuck due to sinking. Modern continuous tracks can be made with soft belts of synthetic rubber, reinforced with steel wires, in the case of lighter agricultural machinery. The more common classical type is a solid chain track made of steel plates (with or without rubber pads), also called caterpillar tread or tank tread, which is preferred for robust and heavy construction vehicles and military vehicles. The prominent treads of the metal plates are both hard-wearing and damage resistant, especially in comparison to rubber tyres. The aggressive treads of the tracks provide good t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Adolphe Kégresse
Adolphe Kégresse (1879, Héricourt, Haute-Saône - 1943) was a French military engineer who invented the half-track and dual clutch transmission. Born at Héricourt, and educated in Montbéliard, he moved in 1905 to Saint Petersburg, Russia to work for the Russian Tsar Nicholas II. To improve the mobility of the imperial car park, he invented the Kégresse track to modify normal motor vehicles into half-tracks. He was also a personal chauffeur of Tsar Nicholas II and the Head of the Mechanical Department of the Russian Imperial Garage at Tsarskoye Selo. The Aide-de-camp to Tsar Nicholas II, Prince Orlov wrote in a letter to the Tsar's Minister of the Court on May 15, 1914: "... I consider Kégresse an irreplaceable worker and I am afraid his leaving will be a great loss for the garage. Your Highness knows, of course, how much His Majesty appreciates Kégresse." In 1908, the architect Lipsky VA designed a second two-storeyed Art Nouveau building for the Russian Imperial gara ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1931 Citroën Autochenille P17 Croisière Jaune Photo 2
Events January * January 2 – South Dakota native Ernest Lawrence invents the cyclotron, used to accelerate particles to study nuclear physics. * January 4 – German pilot Elly Beinhorn begins her flight to Africa. * January 22 – Sir Isaac Isaacs is sworn in as the first Australian-born Governor-General of Australia. * January 25 – Mohandas Gandhi is again released from imprisonment in India. * January 27 – Pierre Laval forms a government in France. February * February 4 – Soviet leader Joseph Stalin gives a speech calling for rapid industrialization, arguing that only strong industrialized countries will win wars, while "weak" nations are "beaten". Stalin states: "We are fifty or a hundred years behind the advanced countries. We must make good this distance in ten years. Either we do it, or they will crush us." The first five-year plan in the Soviet Union is intensified, for the industrialization and collectivization of agriculture. * February 10 – O ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kirov Plant
The Kirov Plant, Kirov Factory or Leningrad Kirov Plant (LKZ) ( rus, Кировский завод, Kirovskiy zavod) is a major Russian mechanical engineering and agricultural machinery manufacturing plant in St. Petersburg, Russia. It was established in 1789, then moved to its present site in 1801 as a foundry for cannonballs. The Kirov Plant is sometimes confused with another Leningrad heavy weapons manufacturer, '' Factory No. 185 (S.M. Kirov)''. Recently the main production of the company is Kirovets heavy tractors. History In 1868 Nikolay Putilov (1820-1880) purchased the bankrupt plant; at the Putilov Works the Putilov Company (a joint-stock holding company from 1873) initially produced rolling stock for railways. The establishment boomed during the Russian industrialization of the 1890s, with the work-force quadrupling in a decade, reaching 12,400 in 1900. The factory traditionally produced goods for the Russian government, with railway products accounting for more ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Artillery Tractor In France Vosges Spring 1915
Artillery is a class of heavy military ranged weapons that launch munitions far beyond the range and power of infantry firearms. Early artillery development focused on the ability to breach defensive walls and fortifications during sieges, and led to heavy, fairly immobile siege engines. As technology improved, lighter, more mobile field artillery cannons developed for battlefield use. This development continues today; modern self-propelled artillery vehicles are highly mobile weapons of great versatility generally providing the largest share of an army's total firepower. Originally, the word "artillery" referred to any group of soldiers primarily armed with some form of manufactured weapon or armor. Since the introduction of gunpowder and cannon, "artillery" has largely meant cannons, and in contemporary usage, usually refers to shell-firing guns, howitzers, and mortars (collectively called ''barrel artillery'', ''cannon artillery'', ''gun artillery'', or - a layman te ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Linn Tractor
The Linn tractor is a heavy duty civilian half-track or crawler tractor invented by Holman Harry Linn. Approximately 2500 units were built in Morris, New York, USA from 1916 to 1952. Development Prototypes Linn was a native of Maine and in his quest for a better machine to travel rural roads with his dog and pony show equipment gave up on a six-wheel-drive design by 1907 to have Alvin Lombard, of Waterville, build a machine using the tracks off a Lombard Steam Log Hauler, and underslung gasoline engine and wheels on front. It was equipped with a ship-style cabin with living quarters and able to pull a string of wagons behind as well as supply electric lights for his circus. By 1909 this was replaced because of size with a single rear-tracked machine with standard wheeled front axle; however as Linn had become employed as a salesman, demonstrator and mechanic for Lombard a patent dispute erupted and Linn left Maine with his show. Improved traction system By 1916 Linn had develop ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Circus
A circus is a company of performers who put on diverse entertainment shows that may include clowns, acrobats, trained animals, trapeze acts, musicians, dancers, hoopers, tightrope walkers, jugglers, magicians, ventriloquists, and unicyclists as well as other object manipulation and stunt-oriented artists. The term ''circus'' also describes the performance which has followed various formats through its 250-year modern history. Although not the inventor of the medium, Philip Astley is credited as the father of the modern circus. In 1768, Astley, a skilled equestrian, began performing exhibitions of trick horse riding in an open field called Ha'Penny Hatch on the south side of the Thames River, England. In 1770, he hired acrobats, tightrope walkers, jugglers and a clown to fill in the pauses between the equestrian demonstrations and thus chanced on the format which was later named a "circus". Performances developed significantly over the next fifty years, with large-scale theat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Waterville, Maine
Waterville is a city in Kennebec County, Maine, United States, on the west bank of the Kennebec River. The city is home to Colby College and Thomas College. As of the 2020 census the population was 15,828. Along with Augusta, Waterville is one of the principal cities of the Augusta-Waterville, ME Micropolitan Statistical Area. History The area now known as Waterville was once inhabited by the Canibas tribe of the Abenaki people. Called "Taconnet" after Chief Taconnet, the main village was located on the east bank of the Kennebec River at its confluence with the Sebasticook River at what is now Winslow. Known as "Ticonic" by English settlers, it was burned in 1692 during King William's War, after which the Canibas tribe abandoned the area. Fort Halifax was built by General John Winslow in 1754, and the last skirmish with indigenous peoples occurred on May 18, 1757. The township would be organized as Kingfield Plantation, then incorporated as Winslow in 1771. When resi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alvin Lombard
Alvin may refer to: Places Canada *Alvin, British Columbia United States *Alvin, Colorado *Alvin, Georgia *Alvin, Illinois * Alvin, Michigan *Alvin, Texas *Alvin, Wisconsin, a town *Alvin (community), Wisconsin, an unincorporated community Other uses * Alvin (given name) * Alvin (crater), a crater on Mars * Alvin (digital cultural heritage platform), a Swedish platform for digitised cultural heritage * Alvin (horse), a Canadian Standardbred racehorse * 13677 Alvin, an asteroid * DSV ''Alvin'', a deep-submergence vehicle * Alvin, a fictional planet on ''ALF'' (TV series) * Alvin Seville, of the fictional animated characters Alvin and the Chipmunks * "Alvin", by James from the album ''Girl at the End of the World'' * Tropical Storm Alvin See also * Alvin Community College * Alvin High School * Aylwin (other) Patricio Aylwin (1918–2016) was a Chilean politician. Aylwin may also refer to: *Andrés Aylwin (1925–2018), Chilean politician * Guy Maxwell Aylwin (1889– ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lombard Steam Log Hauler
The term Lombard refers to people or things related to Lombardy, a region in northern Italy. History and culture * Lombards, a Germanic tribe * Lombards of Sicily, a linguistic minority living in Sicily, southern Italy * Lombard League, a medieval alliance of some 30 cities in Northern Italy Businesses * ICICI Lombard, an insurance company in India * Le Lombard (or Editions Lombard), a Belgian comic book publisher * Lombard Bank, a bank in Malta * Lombard Direct, an insurance company in the United Kingdom Places ;France * Lombard, Doubs, a commune of the Doubs ''département'' * Lombard, Jura, a commune of the Jura ''département'' ;United States * Lombard, Illinois * Lombard, Montana * Lombard, Wisconsin Other uses * Lombard (surname) * Lombard (gun), an early cannon * Lombard Street (other) * Automobiles Lombard, a French automobile manufacturer in the 1920s * Lombard Steam Log Hauler * Lombard language, a Romance language spoken in northern Ital ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
