citations for verification . please help improve this article by adding citations to reliable sources . unsourced material may be challenged and removed . october 2012 learn how and when to remove this template message jensen steam engines type private industry toys founded 1932 founder tom jensen sr. headquarters jeannette pa usa area served worldwide key people tom jensen sr 1901 1992 tom jensen jr products toy steam engines website 1 jensen steam engines is a manufacturer of model toy steam engines located in jeannette pa usa . established in 1932 by tom jensen sr. they are still making steam engines using traditional technology and methods . more information can be found here www.jensensteamengines.com contents 1 history 2 models 2.1 current range 2.1.1 hobby 2.1.2 collector 2.2 discontinued models 2.3 one offs and specials 2.4 accessories 3 see also 4 references 5 external links history edit tom jensen sr 1901 1992 was born and educated in denmark and was interested in steam engines from an early age . in 1923 he made a large model steam engine which is still in working order and is now unofficially known as the jensen 1 . as a young man he moved to the united states looking for work as an engineer . while waiting for a proper job to come along he made a few samples of steam engines hoping to sell them in a local department store . these were seen by a buyer from the f.a.o. schwarz toy store in ny who placed an order . the first batch of engines created much interest from other stores and catalogues and jensen steam engines inc. came into being in 1932 . the factory temporarily closed at the start of world war ii but soon reopened to make equipment for the army . in 1992 george bush wrote to jensen thanking him for his ... unique contribution to america . on his death in 1992 tom jensen sr. passed on the business to his son tom jr. who has continued the business until the present . jensen steam engines is still a small family owned business making steam engines using the same traditional technology as used by tom sr. 1 of historical significance the world s first nuclear power generated electricity was produced in august and september of 1948 with the x 10 graphite reactor in oak ridge national labs oak ridge tennessee where among other firsts this first ever electricity generated by nuclear power occurred utilizing a jensen 50 steam engine and generator . the 50 was the largest model engine and generator made by jensen manufacturing co of jeannette pa . that jensen 50 and generator are still there in the graphite reactor building and still on the same shelf they were mounted on in 1948 . that shelf with the engine is now part of a kiosk display in the visitor area in front of the loading face of the x 10 graphite reactor . while the power generated here was only about 3 volts enough to light a flashlight bulb it did occur in oak ridge in 1948 with a jensen steam engine and generator . the makeshift boiling water reactor that these engineers built also became the test bed for the light water reactors used today . 2 models edit the current range of models are divided into the hobby educational series and the collector commercial series ; the latter being more substantial and up market . some models are electrically heated and some are solid fuel fired ; some on pressed steel bases and some on wooden bases . current range edit hobby edit jensen 70 electrically heated steam engine from the hobby series 25 25g 60 65 70 70g 75 76 85 collector edit 20 20g 55 55g 95g 50 returned to production 2015 2016 3 discontinued models edit 5 1932 1960s 10 1932 1979 30 1954 1982 35 1934 1960 40 1960 1965 45 1949 1959 50 1930s 2004 4 78 1981 80 1980s 90 1961 and 1988 one offs and specials edit 1 1923 20s 1984 51 1973 1996 55s 1984 85g 1996 accessories edit 15 1935 current 15bl 2004 15d 1990 15e 2004 100 1948 1985 see also edit mamod wilesco references edit http www.jensensteamengines.com museum.htm http www.youtube.com watch v fzajo5 sytu jensen steam engines jensen steam engines 4 . http www.indianarog.com jensenchronologyvarieties.htm external links edit jensen steam engines web site jensen chronology & varieties jensen at toy steam bible retrieved from https en.wikipedia.org w index.php title jensen steam engines & oldid 740722499 categories toy steam engine manufacturershidden categories articles needing additional references from october 2012all articles needing additional references navigation menu personal tools not logged intalkcontributionscreate accountlog in namespaces article talk variants views read edit view history more search navigation main pagecontentsfeatured contentcurrent eventsrandom articledonate to wikipediawikipedia store interaction helpabout wikipediacommunity portalrecent changescontact page tools what links hererelated changesupload filespecial pagespermanent linkpage informationwikidata itemcite this page print export create a bookdownload as pdfprintable version languages add links this page was last modified on 22 september 2016 at 21 31 . text is available under the creative commons attribution sharealike license ; 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