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burroughs_class_5 [2019/05/17 21:43] clodoveu |
burroughs_class_5 [2019/05/17 22:32] (current) clodoveu |
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| * [[calc|Back to Mechanical Calculators]] | * [[calc|Back to Mechanical Calculators]] | ||
| - | This machine was manufactured by Burroughs in the United States, in Detroit, Michigan, in 1926 or 1927 (see [[http://www.burroughsinfo.com/when-was-my-machine-made.html|here]]). I bought it at an online auction site, in May 2019, from just two posted images. I took the chance of buying it without being able to see much of the machine's condition, but this one is older, rarer in Brazil, and has a simpler mechanism, based on the Comptometer. | + | This machine was manufactured by Burroughs in the United States, in Detroit, Michigan, in 1926 (see [[http://www.burroughsinfo.com/when-was-my-machine-made.html|here]]). I bought it at an online auction site, in May 2019, from just two posted images. I took the chance of buying it without being able to see much of the machine's condition, but this one is older, rarer in Brazil, and has a simpler mechanism, based on the Comptometer. |
| Online sources say that Burroughs was sued for nearly copying the Comptometer's working mechanism in other machines, and then came out with the Class 5 with a few innovations, including a more compact design, aiming at desktop use. Earlier bulky Burroughs adding machines were mounted on pedestals and placed at the center of offices, to be shared among many operators. | Online sources say that Burroughs was sued for nearly copying the Comptometer's working mechanism in other machines, and then came out with the Class 5 with a few innovations, including a more compact design, aiming at desktop use. Earlier bulky Burroughs adding machines were mounted on pedestals and placed at the center of offices, to be shared among many operators. | ||
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| [[https://arildamland.artstation.com/projects/k4lBOl | A time-lapse video of an artist recreating the shape of a Class 5 using only a photo and a 3D design software package]] | [[https://arildamland.artstation.com/projects/k4lBOl | A time-lapse video of an artist recreating the shape of a Class 5 using only a photo and a 3D design software package]] | ||
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| + | [[https://archive.org/details/burr_instr/page/n9 | Instructions for Operating the Burroughs Calculator. 36 page booklet]] | ||
