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The Keuffel and Esser Co., also known as K & E, was a drafting instrument and supplies company founded in 1867 by German immigrants William J. D. Keuffel and Herman Esser. It was the first American company to specialize in these products.〔, p.24〕 == History == Keuffel and Esser started out in New York and sold drawing materials and drafting supplies. In 1876, K & E started selling surveying instruments. A four-story factory in Hoboken, New Jersey was completed four years later, and K & E was incorporated in 1889. In 1892, the company commissioned a building for their showroom and offices at 127 Fulton Street in Manhattan from the architecture firm of De Lomos & Cordes, who designed an 8-story brick and terra cotta building in the Renaissance Revival style. The building was completed in 1893, and the company occupied it until 1961. It was designated a New York City landmark in 2005.〔 In the first decade of the 20th century, Keuffel and Esser introduced another, new line of surveying instruments based on the work of John Paoli, an Italian immigrant in Hoboken. A new Keuffel and Esser Manufacturing Complex was built in 1906. The building was converted to housing in 1975, and was added to the National Register of Historic Places on September 12, 1985.〔Hoboken Historical Museum, Hoboken, NJ. ("Keuffel & Esser Manufacturing Complex, Third Street at Grand and Adams Street, 1906." ) ''Points of Interest.'' Accessed 2012-12-04.〕 The Leroy K & E Controlled Lettering System uses a pantograph for mechanical technical lettering. Image:Slide rule scales front.jpg Image:Slide rule scales back.jpg K & E acquired Young & Sons of Philadelphia in 1918, and made it a department of the firm. In the 1920s, K & E started manufacturing slide rules. A special slide rule was designed in the mid-1930s by Nelson M. Cooke of the Navy's Radio Materiel School; many thousands of the 4139 Cooke Radio Slide Rule were made by K&E. The 4081-3 Log-Log Duplex Decitrig from K&E was a mainstay for engineering students and practicing engineers in the 1940s, 50s, and 60s.〔Pictures of K&E Slide Rules;http://www.mccoys-kecatalogs.com/KECollection/collection.htm〕 During World War II, the company made fire-control instruments for the US Government and won seven Army-Navy "E" Awards for Excellence in Production. With the advent of the electronic, transistorized calculator in the 1970s, slide rules became obsolete in most contexts. Slide rules had never been very profitable for K & E, so it was not difficult to discontinue the line. K & E's market share shrank because of other technological advancements, and the firm shut down its slide-rule engraving machines in 1975.〔Stoll, Cliff. "When Slide Rules Ruled." ''Scientific American''. May 2006.〕 In the 1960s, K & E had an office in Montreal, Quebec, at 130 Montée de Liesse. It was one of the main suppliers to major engineering firms in Québec during the thriving years of the late sixties, when the province was booming with construction activities—building highways and preparing for Expo 67. The company was acquired by AZON Corp. in 1987. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Keuffel and Esser」の詳細全文を読む スポンサード リンク
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