Burroughs Sample Calculator, Sterling Pence
date: label: date made
content: ca 1920
name: label: maker
content: Burroughs Adding Machine Company
notes: label: Description
content: In 1911 the Burroughs Adding Machine Company introduced a key-driven adding machine much like the Comptometer made by Felt & Tarrant Manufacturing Company. The Burroughs calculator, as the new machine was called, performed ordinary decimal arithmetic. Burroughs inventors soon designed special versions of the calculator to solve other problems. This is the model or sample for a machine for British currency.
label: Description
content: This machine has six columns of keys with nine octagonal plastic keys in each column. Odd keys are convex and even keys, flat. The rightmost column of keys is numbered from 1 to 9, with complementary numbers so that the numbers on one key add up to 11 (e.g., 4 and 7). These keys are black . To the left of this is a column of white keys, with the usual complementary digits. Left of this is another column of white keys, all numbered 1 with 0. Left of this column are two columns of black keys, numbered from 1 to 9 with the usual complements. The leftmost column has black keys, numbered 1 to 9 with complements so that the total of numbers on any one key is 11 (e.g. 4 and 7).
label: Description
content: The total appears in a row of number wheels at the front which are visible through windows in the case. The cloth cover is painted black.
label: Description
content: A metal tag attached to the object reads: DONATED TO (/) The Smithsonian Institution (/) by (/) Burroughs Corporation.
label: Description
content: Models 1982.0794.44, 1982.0794.45, and 1982.0792.46 are all from model 230 in the collection of the Patent Division of Burroughs Corporation.
label: Location
content: Currently not on view
place: label: place made
content: United States: Michigan, Detroit
topic: label: Subject
content: Mathematics
setName: label: See more items in
content: Medicine and Science: Mathematics
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content: Adding Machines
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content: Science & Mathematics
creditLine: label: Credit Line
content: Gift of Burroughs Corporation
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: 1982.0794.46
label: catalog number
content: 1982.0794.46
label: accession number
content: 1982.0794
objectType: label: Object Name
content: adding machine model
physicalDescription: label: Physical Description
content: plastic (overall material)
label: Physical Description
content: paper (overall material)
label: Physical Description
content: cloth (overall material)
label: Physical Description
content: metal (overall material)
label: Measurements
content: overall: 12.7 cm x 16 cm x 28.5 cm; 5 in x 6 5/16 in x 11 7/32 in