Burroughs Experimental Adding Machine
date: label: date made
content: 1911
name: label: maker
content: Burroughs Adding Machine Company
notes: label: Description
content: The Burroughs Adding Machine Company made most of its profits on adding machines that had one column of nine keys for each digit of a number (these are called full-keyboard adding machines). Members of the Patent Department also experimented with machines having only ten keys for entering numbers. This is an example of such an experiment.
label: Description
content: The manually operated printing adding machine allows one to enter numbers with up to nine digits and print nine-digit results. It has an additional column of symbol keys in the output. The frame of the case is metal painted black, the sides are of glass. One of these sides is missing. Ten black numeral keys are arranged in two rows. The six white function keys are for subtotal, non-add, backspace, non-print, repeat and error (a seventh function key has key stem only). A row of numeral wheels above indicates the sum. The keyboard is covered with green felt. A dial-shaped place indicator is on the right front. The machine has a 10 3/8”- wide carriage. There is a paper tape, but no ribbon was located. A metal handle with wooden knob painted black is on the right.
label: Description
content: The machine is marked on the front: BURROUGHS. It is marked on a metal tag above the keyboard: B.A.M.CO. (/) MODEL (/) NO. 106. A metal tag attached to the object reads: DONATED TO (/) The Smithsonian Institution (/) by (/) Burroughs Corporation.
label: Description
content: This machine resembles the drawing in A. A. Horton’s United States patent 1,323,475, but is not precisely the same. Horton applied for the patent in 1911 and was granted it in 1919. According to a note with the patent application, a patent originally was applied for July 31, 1911. It was allowed May 19, 1917, but forfeited to prevent publicity of the invention in view of wartime conditions that prevented filing a patent application in Germany. The application was renewed May 15, 1919, and issued December 21, 1919.
label: Description
content: The machine is from 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
label: See more items in
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: 1982.0794.13
label: accession number
content: 1982.0794
label: catalog number
content: 1982.0794.13
objectType: label: Object Name
content: adding machine
physicalDescription: label: Physical Description
content: metal (overall material)
label: Physical Description
content: wood (overall material)
label: Physical Description
content: paper (overall material)
label: Physical Description
content: plastic (overall material)
label: Physical Description
content: felt (overall material)
label: Physical Description
content: glass (overall material)
label: Measurements
content: overall: 25.3 cm x 38.7 cm x 36.5 cm; 9 31/32 in x 15 1/4 in x 14 3/8 in