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. Five of the eight have the dimensions given. These five hollow pieces have a gear at each end. The cavity running down the middle is round at one end and square at the other. The other three components are only .8 cm high. The short pieces have only one gear and a square opening. Pieces this shape are found on the shafts of the components of 1983.3003.18.
Compare to 311943.
Location
Currently not on view
maker
Controller Company
place made
United States: New York, New York
Physical Description
brass (overall material)
Measurements
overall: 1.4 cm x 2 cm x 1.4 cm; 9/16 in x 25/32 in x 9/16 in
ID Number
1983.3003.025
nonaccession number
1983.3003
catalog number
1983.3003.025
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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