167:). It consisted in a pneumatic system with a series of air tubes which activated a mesh of tiles, that each one had a black face and a white face. When air flowed through an individual tube, the tile attached to it would flip, revealing its white face and allowing to show an image on the background of black tiles. This way, the pneumograph could display several advertisements and daily reports. A prototype was presented on the top of a building in the
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During the ten years after he moved to Prague, Janeček's mechanical research workshop performed hundreds of experiments and registered dozens of patents. The most successful ones were related to sound recordings. He also spent some time travelling around Europe (Germany, Belgium, the
Netherlands and
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in 1938 Janeček was forced to turn his factory over to the occupying command and it was used to produce German aircraft engines and generators. He continued to work in secret on the development of single-cylinder two-stroke motorcycles and the production was restarted following the end of the war.
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Janeček first began producing
Wanderer motorcycles under license in 1927 in order to diversify the interests of his arms factory. His first motorcycle had a number of advanced features, including shift-drive and a steel frame. He was able to recruit an experienced British motorcycle designer
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manufacturing company. He drew on his knowledge of engineering and his experience with factory mass production techniques and based his new motorcycle designs around an existing 498cc engine made by a German company called
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Janeček's plans included the installation of other pneumographs in Berlin, Warsaw and St. Petersburg. However, the arrival of the First World War put negotiations to a halt, and his project was never developed.
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234:, and together they developed a range of competition motorcycles to promote the new Jawa brand. In the 1930s Janeček expanded the range to include lightweight economy models based around British
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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.
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Janeček experienced a prolific period of designing and inventing and secured over sixty new patents, including a design for an improved
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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
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278:(40 mm) anti-tank gun. It was used to extend the service life of the 2-pounder during World War II by converting it to
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The grenade, named Model 21, became the standard hand grenade of the
Czechoslovak army, and was nicknamed the "Janeček".
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two-stroke engines, as well as middleweight 350cc side valve and overhead valve motorcycles under the Jawa brand (e.g.
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František Janeček died on 4 June 1941 and the Jawa company was then taken over by his son Karel Janeček.
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England, among other places), looking for many technological innovations and new ways to organize work.
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and an important figure in the development of the Czech motorcycle industry. He died on 4 June 1941.
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avenue in Prague, located at the
Jungmannovo náměstí 761/1 address, drawing the public's attention.
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František Janeček : motocyklový král : příběh muže, který dal vzniknout motocyklům Jawa
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operation. "Littlejohn" came from the literal anglicization of František Janeček's name.
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Upon graduation he returned to Prague and began working for the Jewish industrialist
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Still, his greatest commercial prospects were placed on an invention known as the
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Janeček was born on 23 January 1878 in Klášter nad Dědinou, a small village in
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Janeček saw an opportunity in 1927 to turn a former armament factory into a
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to study mechanics at the Prague
Technical School and then moved to
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Povolný, Daniel; Souček, Vladimír; Radomír, Zavadil (2011).
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was a device that could be fitted on to the
British
367:(in Czech) (1 ed.). Mladá fronta. p. 38.
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218:in 1929, a compound of the first two letters of
338:"Foundation of JAWIR company and JMT alliance"
431:"Foundation of JAWA company and JMT alliance"
567:Expatriates from Austria-Hungary in Germany
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488:"Brief History of the Marque: Jawa"
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76:Protectorate of Bohemia and Moravia
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457:"Non functioning replica grenades"
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96:Motorcycle designer and engineer
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105:(1878–1941) was the founder of
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311:"The History of JAWIR-CZ..."
214:. The new company was named
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510:"The Littlejohn Adaptor"
401:"ng. František Janeček"
232:George William Patchett
562:Czechoslovak engineers
199:Motorcycle development
508:Williams, Anthony G.
314:Westcoast Motorcycles
183:After serving on the
48:Klášter nad Dědinou,
557:Motorcycle designers
121:in the present-day
516:on 25 October 2012
272:Littlejohn adaptor
266:Littlejohn adaptor
50:Kingdom of Bohemia
103:František Janeček
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20:František Janeček
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512:. Archived from
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68:(aged 63)
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125:. He went to
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93:Occupation(s)
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518:. Retrieved
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491:. Retrieved
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435:the original
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409:the original
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280:squeeze bore
276:QF 2 pounder
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256:Nazi Germany
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66:(1941-06-04)
547:1941 deaths
542:1878 births
189:World War I
179:World War I
165:pneumograph
142:Netherlands
138:Emil Kolben
83:Nationality
64:4 June 1941
536:Categories
520:5 December
493:5 December
467:5 December
441:5 December
348:5 December
319:5 December
286:References
222:neček and
205:motorcycle
161:pneumograf
113:Early life
41:1878-01-23
383:713373463
240:Jawa 350
236:Villiers
226:nderer.
211:Wanderer
415:18 June
169:Národní
131:Germany
119:Bohemia
405:Eltsen
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127:Prague
72:Prague
250:When
87:Czech
522:2010
495:2010
469:2010
443:2010
417:2017
379:OCLC
369:ISBN
350:2010
321:2010
270:The
216:JAWA
61:Died
35:Born
242:).
187:in
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224:Wa
220:Ja
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39:(
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
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