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František Janeček
František Janeček was the founder of Jawa motorcycles and an important figure in the development of the Czech motorcycle industry. He died on 4 June 1941. Early life Janeček was born on 23 January 1878 in Klášter nad Dědinou, a small village in Bohemia in the present-day Czech Republic. He went to Prague to study mechanics at the Prague Technical School and then moved to Germany to the Berlin College of Engineering. Upon graduation he returned to Prague and began working for the Jewish industrialist Emil Kolben at the Kolben company. He did well and when he was only 23 he was appointed manager of the new factory opened by Kolben in the Netherlands, where he met his future wife. He was hit by a car when riding his bicycle to work. The daughter of the driver gave him first aid, and they became friends and later married. At the age of 31 years, motivated by his success at designing inventions, Janeček decided to quit Kolben and start his own engineering workshop in Prague. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kingdom Of Bohemia
The Kingdom of Bohemia ( cs, České království),; la, link=no, Regnum Bohemiae sometimes in English literature referred to as the Czech Kingdom, was a medieval and early modern monarchy in Central Europe, the predecessor of the modern Czech Republic. It was an Imperial State in the Holy Roman Empire, and the Bohemian king was a prince-elector of the empire. The kings of Bohemia, besides the region of Bohemia proper itself, also ruled other lands belonging to the Bohemian Crown, which at various times included Moravia, Silesia, Lusatia, and parts of Saxony, Brandenburg, and Bavaria. The kingdom was established by the Přemyslid dynasty in the 12th century from the Duchy of Bohemia, later ruled by the House of Luxembourg, the Jagiellonian dynasty, and from 1526 the House of Habsburg and its successor, the House of Habsburg-Lorraine. Numerous kings of Bohemia were also elected Holy Roman Emperors, and the capital, Prague, was the imperial seat in the late 14th century, and a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jawa PICT0348
Jawa may refer to: Places Southeast Asia *Java ( jv, Jawa), the most populous and fifth-largest island in Indonesia and the site of its capital, Jakarta **East Java, also called Jawa Timur, a province on the Indonesian island of Java **Central Java, also called Jawa Tengah, a province on the Indonesian island of Java **West Java, also called Jawa Barat, a province on the Indonesian island of Java *Chek Jawa, a cape and the name of its 100-hectare wetlands located on the south-eastern tip of Pulau Ubin off coast of Singapore *Karimunjava, an archipelago of 69 islands in the Java Sea, Indonesia, approximately 80 kilometres northwest of Jepara *Padang Jawa, a small town in Selangor, Malaysia *Parit Jawa, a main town in Muar district, Johor, Malaysia Middle East *Jawa, Jordan, archaeological site in Jordan *Tall Jawa, Iron Age village in central Jordan * Zaduqabad, Iran, a village in Markazi Province, Iran, also known as Jāwa Entertainment * Jawa (''Star Wars''), a fictional alien s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Czech Engineers
Czech may refer to: * Anything from or related to the Czech Republic, a country in Europe ** Czech language ** Czechs, the people of the area ** Czech culture ** Czech cuisine * One of three mythical brothers, Lech, Czech, and Rus' Places *Czech, Łódź Voivodeship, Poland *Czechville, Wisconsin, unincorporated community, United States People * Bronisław Czech (1908–1944), Polish sportsman and artist * Danuta Czech (1922–2004), Polish Holocaust historian * Hermann Czech (born 1936), Austrian architect * Mirosław Czech (born 1968), Polish politician and journalist of Ukrainian origin * Zbigniew Czech (born 1970), Polish diplomat See also * Čech, a surname * Czech lands * Czechoslovakia * List of Czechs * * * Czechoslovak (other) * Czech Republic (other) * Czechia (other) Czechia is the official short form name of the Czech Republic. Czechia may also refer to: * Historical Czech lands *Czechoslovakia (1918–1993) *Czech Socialist Repu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1941 Deaths
Events Below, the events of World War II have the "WWII" prefix. January * January–August – 10,072 men, women and children with mental and physical disabilities are asphyxiated with carbon monoxide in a gas chamber, at Hadamar Euthanasia Centre in Germany, in the first phase of mass killings under the Action T4 program here. * January 1 – Thailand's Prime Minister Plaek Phibunsongkhram decrees January 1 as the official start of the Thai solar calendar new year (thus the previous year that began April 1 had only 9 months). * January 3 – A decree (''Normalschrifterlass'') promulgated in Germany by Martin Bormann, on behalf of Adolf Hitler, requires replacement of blackletter typefaces by Antiqua. * January 4 – The short subject ''Elmer's Pet Rabbit'' is released, marking the second appearance of Bugs Bunny, and also the first to have his name on a title card. * January 5 – WWII: Battle of Bardia in Libya: Australian and British troops de ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1878 Births
Events January–March * January 5 – Russo-Turkish War – Battle of Shipka Pass IV: Russian and Bulgarian forces defeat the Ottoman Empire. * January 9 – Umberto I becomes King of Italy. * January 17 – Battle of Philippopolis: Russian troops defeat the Turks. * January 23 – Benjamin Disraeli orders the British fleet to the Dardanelles. * January 24 – Russian revolutionary Vera Zasulich shoots at Fyodor Trepov, Governor of Saint Petersburg. * January 28 – ''The Yale News'' becomes the first daily college newspaper in the United States. * January 31 – Turkey agrees to an armistice at Adrianople. * February 2 – Greece declares war on the Ottoman Empire. * February 7 – Pope Pius IX dies, after a 31½ year reign (the longest definitely confirmed). * February 8 – The British fleet enters Turkish waters, and anchors off Istanbul; Russia threatens to occupy Istanbul, but does not carry out the threat. * Febru ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Squeeze Bore
A squeeze bore, alternatively taper-bore, cone barrel or conical barrel, is a weapon where the internal gun barrel, barrel diameter progressively decreases towards the muzzle (firearms), muzzle resulting in a reduced final internal diameter. These weapons are used in conjunction with special Sub-caliber round, sub-caliber ammunition where the projectile is fitted with soft-metal flanges which fills out the caliber. As the projectile travels through the squeeze bore the flanges fold inwards, resulting in a reduced caliber round with an increased velocity compared to a traditional full-caliber round. Mechanism A squeeze bore utilizes the energy of the propellant to squeeze the diameter of the bullet or shell (projectile), shell down, increasing penetration and velocity significantly. This process also meant high chamber pressure and low barrel service life. For example, the service life of a squeeze bore 7.5 cm Pak 41 could be as low as 1000 rounds compared to 5000-7000 rounds for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ordnance QF 2 Pounder
The Ordnance QF 2-pounder (British ordnance terms#QF, QF denoting "quick firing"), or simply "2 pounder gun", was a British anti-tank gun and vehicle-mounted gun employed in the World War II, Second World War. It was the main anti-tank weapon of the artillery units in the Battle of France and, due to the need to rearm quickly after the Dunkirk evacuation, remained in service during the North African campaign. In its vehicle-mounted variant the 2-pounder was a common main gun on British tanks early in World War II, as well as being a typical main armament of Armored car (military), armoured cars, such as the Daimler Armoured Car, Daimler, throughout the war. As the armour protection of Axis powers, Axis tanks improved, the 2-pounder lost effectiveness and it was gradually replaced by the 57 mm Ordnance QF 6 pounder, QF 6-pounder starting in 1942. It equipped infantry battalion anti-tank platoons replacing their anti-tank rifles until in turn replaced by 6-pounders but remained ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Littlejohn Adaptor
The Littlejohn adaptor was a device that could be added to the British QF 2 pounder (40 mm) anti-tank gun. It was used to extend the service life of the 2-pounder during the Second World War by converting it to squeeze bore operation. "Littlejohn" came from the calque, i.e. literal anglicization, of the name of František Janeček, the Czech designer and factory owner who had been working on the squeeze-bore principle in the 1930s and his son František Karel Janeček, who had brought his know-how to Britain after fleeing from German-occupied Czechoslovakia. Design The adaptor took the form of a reducing bore that was screwed on to the end of the gun. This was coupled with a round formed from a hard core (tungsten) inside a softer metal casing - the armour-piercing, composite non-rigid (APCNR) design. Upon firing, the round travelled the first part of the bore as normal, but on entering the tapering portion the softer and malleable metal of the outer shell of the round was ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nazi Germany
Nazi Germany (lit. "National Socialist State"), ' (lit. "Nazi State") for short; also ' (lit. "National Socialist Germany") (officially known as the German Reich from 1933 until 1943, and the Greater German Reich from 1943 to 1945) was the German state between 1933 and 1945, when Adolf Hitler and the Nazi Party controlled the country, transforming it into a dictatorship. Under Hitler's rule, Germany quickly became a totalitarian state where nearly all aspects of life were controlled by the government. The Third Reich, meaning "Third Realm" or "Third Empire", alluded to the Nazi claim that Nazi Germany was the successor to the earlier Holy Roman Empire (800–1806) and German Empire (1871–1918). The Third Reich, which Hitler and the Nazis referred to as the Thousand-Year Reich, ended in May 1945 after just 12 years when the Allies defeated Germany, ending World War II in Europe. On 30 January 1933, Hitler was appointed chancellor of Germany, the head of gove ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Villiers Engineering
Villiers Engineering was a manufacturer of motorcycles and cycle parts, and an engineering company based in Villiers Street, Wolverhampton, England. Early history In the 1890s John Marston's Sunbeam had become extremely successful by relying on high quality of production and finish. But Marston was dissatisfied with the pedals on his machines, which he bought in. In 1890 he dispatched his son Charles to the US on a selling trip, but included in his instructions that Charles must discuss pedal engineering with Pratt and Whitney in Hartford, Connecticut and come back with a high-class pedal and the machinery for making it. Charles said that the Villiers Engineering Co. was "the ultimate fruit" of his trip to the US, being impressed by the production system and the labour saving devices. He pointed out that "it was not possible to develop these at Sunbeamland, which had long been working on another plan, but it was possible to start them in a new factory". As a result of the to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
George William Patchett
George William Patchett (23 December 1901 - before 31 December 1974) was a British motorcycle racer and engineer. Career In his early career he was a motor cycle racer for motorcycle manufacturers such as Brough Superior, McEvoy and the Belgian arms company FN. At Pendine, Wales he won the Welsh TT in 1925 and the Welsh TT sidecar in 1927 on Brough machines. In 1930 he was recruited by the Czech arms manufacturer František Janeček, founder of the JAWA motorcycle company. Janeček wanted to build a cheaper motor cycle than their current model. Patchett's contacts with the Villiers company enabled a new JAWA model to be designed around the Villiers 175cc two-stroke engine which proved very popular. On the outbreak of World War II in 1939, Patchett returned to England and started work under the auto-engineer George Lanchester at the Sterling Armaments Company in Dagenham, Essex, helping to gear up manufacture of the Lanchester sub-machine gun. On his way out of Prague he ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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