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Albree Trulog Spiral Circular Logarithmic Table

National Museum of American History

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Object Details

Albree, G. Norman
Description
This is Norman Albree's pilot model for a one-sided logarithmic chart. It is white paper on a wooden disc painted black. There is a clear celluloid indicator that pivots at the center and is cushioned on purple felt. The scale permits readings of logarithms from 10,000 to 100,000. The instrument is marked at the center: ALBREE TRULOG SPIRAL (/) G. NORMAN ALBREE (/) BOSTON. Inside the fifth ring of the spiral is marked: ©1945.
George Norman Albree (1888–1986), the inventor and donor, attended Amherst College with the Class of 1911 and graduated from Dartmouth in 1912. He is best known for designing the first monoplanes purchased by the U.S. Army in 1917. However, after testing, the military deemed the aircraft too unreliable and slow and declined to order a production run from Albree's employer, the Pigeon Hollow Spar Company of East Boston, Mass.
See also 335484 and 335487.
Location
Currently not on view
Credit Line
Gift of G. Norman Albree
after 1945
ID Number
MA.335486
catalog number
335486
accession number
321674
Object Name
slide rule
Physical Description
paper (part material)
plastic (cursor material)
wood (overall material)
Measurements
overall: 2 cm x 20.5 cm x 20.5 cm; 25/32 in x 8 1/16 in x 8 1/16 in
place made
United States: Massachusetts, Boston
See more items in
Medicine and Science: Mathematics
Science & Mathematics
Slide Rules
National Museum of American History
subject
Rule, Calculating
Chart, Logarithmic
Mathematics
Record ID
nmah_1215051
Metadata Usage (text)
CC0
GUID (Link to Original Record)
http://n2t.net/ark:/65665/ng49ca746aa-8eb0-704b-e053-15f76fa0b4fa

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SLIDE RULE - ALBREE TRULOG SPIRAL
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