Carl Friden (April 11, 1891 – April 29, 1945) was the Swedish born American mechanical engineer and businessman who founded the Friden Calculating Machine Company (Friden, Inc.).[1]
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A company biography of Carl Friden (document identity long lost) from the 1960s or before stated that he was born Carl Bengtsson, and said it was the Swedish custom at the time to assume a new surname (instead of the patronymic, apparently). He chose "Fridén" as his surname. Friden employees were told that his adopted name means "Peace" in Swedish, however, the correct Swedish translation of Friden (without the acute accent on the letter "e"), would be "the Peace". A different biography, apparently written by his family, makes no mention of this.
Carl M. Friden had been a mechanical engineer representing the Swedish Match Trust. In 1913, Friden traveled to in London, England to assemble match machines for his company. In 1914, he traveled to Australia with the same purpose in mind, but was stranded there when World War I broke out. In the interim he worked on his ideas for designing a more reliable calculator. Two years later he headed to San Francisco on an American steamer to get part way home, but that is where he stayed. He found his place in the Marchant Calculating Machine Co. of Oakland within a year. When the U.S. Government made Marchant discontinue its current model because it violated some German patents, Carl Friden filled the void with his own model.[2]
Friden became the chief designer of the Marchant Calculating Machine Company. While there he introduced his new design which reduced the number of calculator parts by one-third, thus increasing their reliability. Friden continued to develop the modified-pinwheel machines at Marchant during the 1920s. His machines were robust and quickly became popular.
When he started his own company, his early calculators were marked "Fridén", with the accent.
Carl Friden left the Marchant Calculating Machine Company in 1934 (during the Depression) to establish his own calculator company. Four investors came to the firm's aid with funds to add to Carl Friden's limited finances. These investors were Walter S. Johnson and his brother-in-law Charles T. Gruenhagen, both executives with the American Forest Products Corporation together with their associates, J. B. Lewis of the American Box Company and C. A. Webster of the Stockton Box Company.[3]
Carl Friden already had a number of patents to his credit, including an early calculating machine. Friden's company introduced a calculator that included a square root function in 1952, then went on in 1963 to introduce the model EC-130, the fully transistorized electronic calculator. In 1963 the company was purchased by the Singer Corporation.[4]
Friden married Hildur Victoria Svenson in 1914 in Stockholm, Sweden. They had two children, Stanley Mauritz Victor and Barbro. He was a member of the American Society of Mechanical Engineers, a Lutheran, and a Republican. In 1945, Carl Friden died of cancer.