Adding Machine Section, Burroughs Model 534a

Description
This is one of a series of adding machines and adding machine models prepared by the Patent Department of the Burroughs Adding Machine Company. It is a steel mechanism for an adding machine with a column of 9 octagonal white plastic keys and two numeral wheels. Keys for odd digits are concave, and for even digits, flat. Complementary digits are indicated on the keys. Mechanism for “9” key only.
A red tag attached to the object reads: PATENT (/) MODEL (/) No. 534A. A metal tag on the side reads: MODEL ROOM (/) 534A.
Objects 1982.0794.04 through 1982.0794.10 were received together as Burroughs Patent model 42. This object is described in accession file as an invention of Walter J. Pasinski of Burroughs. Pasinski and other Burroughs inventors filed several patents for key-driven adding machines between 1911 and 1929.
Location
Currently not on view
Object Name
adding machine model
date made
ca 1920
maker
Burroughs Adding Machine Company
Physical Description
plastic (overall material)
steel (overall material)
Measurements
overall: 11.5 cm x 4.5 cm x 26.8 cm; 4 17/32 in x 1 25/32 in x 10 9/16 in
place made
United States: Michigan, Detroit
ID Number
1982.0794.06
accession number
1982.0794
catalog number
1982.0794.06
subject
Mathematics
See more items in
Medicine and Science: Mathematics
Science & Mathematics
Adding Machines
Data Source
National Museum of American History, Kenneth E. Behring Center

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