Calculating Machine Components

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Description
This object was collected by Brooklyn high school teacher and historian of mathematics L. Leland Locke. A steel shaft holds steel and brass discs six centimeters in diameter. Some discs hold pins and have partially toothed edges. Others are thinner, and may go only part way around. These discs also have a toothed edge and may have a protrusion like those on pinwheel calculating machines.
Location
Currently not on view
Physical Description
metal (overall material)
Measurements
overall: 16 cm x 8 cm x 8 cm; 6 5/16 in x 3 5/32 in x 3 5/32 in
ID Number
1983.3003.032
nonaccession number
1983.3003
catalog number
1983.3003.032
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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