Controller Calculating Machine Components

Controller Calculating Machine Components

Description
These objects were collected by Brooklyn high school teacher and historian of mathematics L. Leland Locke. The three small hollow pieces each have a steel plate with curved sides at the top that is attached to a brass piece that carries a gear. Pieces like this are found on the shaft of 1983.3003.18. Also compare to 311943.
Location
Currently not on view
maker
Controller Company
place made
United States: New York, New York
Physical Description
metal (overall material)
Measurements
overall: 2.4 cm x 2.5 cm x 2.5 cm; 15/16 in x 31/32 in x 31/32 in
ID Number
1983.3003.024
nonaccession number
1983.3003
catalog number
1983.3003.024
Credit Line
Gift of L. Leland Locke
subject
Mathematics
See more items in
Medicine and Science: Mathematics
Science & Mathematics
Calculating Machines
Data Source
National Museum of American History

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