Burroughs Adding Machine Section

This open cross section of a Burroughs adding machine has a metal frame painted black on one side, a single column of nine plastic-covered keys (one of these is missing), a mechanism for the keys, a short rubber carriage, and type. Two number wheels are at the front. Places where the mechanism and frame have been cut off are painted orange. The model is supposed to show transmission of action from the finger keys to the registering devices. The model rests on a metal shaft that is attached to a square wooden base.
This section was lent to the Smithsonian in 1924 by Burroughs Adding Machine Company of Detroit as an example of the technology of a current product. It recently has been donated to the Institution by Unisys Corporation.
Currently not on view
Object Name
adding machine section
date made
Burroughs Adding Machine Company
Physical Description
metal (overall material)
plastic (overall material)
rubber (overall material)
wood (overall material)
overall: 46.5 cm x 19 cm x 38.5 cm; 18 5/16 in x 7 15/32 in x 15 5/32 in
place made
United States: Michigan, Detroit
ID Number
catalog number
accession number
Science & Mathematics
Adding Machines
See more items in
Medicine and Science: Mathematics
Adding Machines
Data Source
National Museum of American History, Kenneth E. Behring Center
Credit Line
Gift of Unisys Corporation
Additional Media

Visitor Comments

Add a comment about this object

**Please read before submitting the form**

Have a comment or question about this object to share with the community? Please use the form below. Selected comments will appear on this page and may receive a museum response (but we can't promise). Please note that we generally cannot answer questions about the history, rarity, or value of your personal artifacts.

Have a question about anything else, or would you prefer a personal response? Please visit our FAQ or contact page.

Personal information will not be shared or result in unsolicited e-mail. See our privacy policy.

Enter the characters shown in the image.