Burroughs Class 4 Adding Machine
date: label: date made
content: 1912
name: label: maker
content: Burroughs Adding Machine Company
notes: label: Description
content: This full keyboard printing electric adding machine has a metal frame painted black and ten columns of color-coded black, white, and red plastic keys. It has function keys left of the number keys and an addition bar and other function keys to the right. The keyboard is covered with green felt. There is a row of number dials at the front of the machine, as well as a row of five small dials between the keyboard and the lower dials on the left. The machine has a motor underneath it, and a wide carriage.
label: Description
content: The printing mechanism is at the back. It has 11 type bars (one of these is probably for symbols). Part of the back cover is missing and there is no stand. The machine is marked on a red tag attached to the object: PATENT DEPT. (/) #34. Thus it is model #34 in the collection of the Patent Division of Burroughs Corporation.
label: Description
content: The Burroughs Class 4 was introduced in 1912. This model demonstrates improvements in the double ribbon mechanism invented by John H. Magnus, a Burroughs inventor.
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
label: See more items in
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: 1982.0794.03
label: catalog number
content: 1982.0794.03
label: accession number
content: 1982.0794
objectType: label: Object Name
content: adding machine
physicalDescription: label: Physical Description
content: plastic (overall material)
label: Physical Description
content: metal (overall material)
label: Physical Description
content: rubber (overall material)
label: Physical Description
content: glass (overall material)
label: Physical Description
content: felt (overall material)
label: Measurements
content: overall: 40 cm x 38 cm x 45 cm; 15 3/4 in x 14 31/32 in x 17 23/32 in