The Milometer slide rule computer
date: label: date made
content: 1917
notes: label: Description
content: One inscription on this celluloid rule reads “COPYRIGHT G. P. WILHELM 1917 / MFR. AND DISTRIBUTOR EDWARD C. MCKAY / CLEVELAND, OHIO / PATENT APPLIED FOR.” Another reads “THE MILOMETER.” Glenn Perrin Wilhelm (1889-1941) was an officer in the U.S. Army, and an authority on ballistics. He devised this slide rule-like computer for forward observers, to help them direct the indirect fire of machine guns and small arms.
label: Description
content: Ref: Glenn P. Wilhelm, <i>Machine Gun Fire Control</i> (Cleveland: Edward C. McKay, 1917).
label: Location
content: Currently not on view
place: label: place made
content: United States: Ohio, Cleveland
topic: label: related event
content: World War I
setName: label: See more items in
content: Medicine and Science: Chemistry
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content: Celluloid
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content: Military
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content: Computers & Business Machines
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: 2006.0098.1569
label: catalog number
content: 2006.0098.1569
label: accession number
content: 2006.0098
objectType: label: Object Name
content: slide rule computer
label: Object Name
content: slide rule
physicalDescription: label: Physical Description
content: cellulose nitrate (overall material)
label: Measurements
content: overall: 3.5 cm x 16.8 cm x .5 cm; 1 3/8 in x 6 5/8 in x 3/16 in
label: Measurements
content: overall: 1 1/2 in x 6 5/8 in x 3/16 in; 3.81 cm x 16.8275 cm x .47625 cm