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Lead Screw from Rowland's Ruling Engine

Lead Screw from Rowland's Ruling Engine

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Description
This is one of two steel screws from the first ruling engine built at Johns Hopkins University under the direction of Henry A. Rowland. The screws were damaged by fire and damp, but restored for exhibition purposes.
Compare MA.315229 and MA.315230.
On Rowland and his ruling engines, see MA.333877.
Reference:
Accession file.
Location
Currently not on view
Object Name
screw, ruling engine
screw
date made
1882
maker
Rowland, Henry A.
place made
United States: Maryland, Baltimore
Physical Description
steel (overall material)
Measurements
overall: 1 1/2 in x 22 in x 1 1/2 in x 1 1/2 in; 3.81 cm x 55.88 cm x 3.81 cm x 3.81 cm
ID Number
MA.315230
catalog number
315230
accession number
218478
Credit Line
Gift of Department of Physics, Johns Hopkins University
subject
Mathematics
Ruling and Dividing Engines
See more items in
Medicine and Science: Mathematics
Science & Mathematics
Data Source
National Museum of American History
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