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Directions for the Use of Hemmi Slide Rules

National Museum of American History
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Object Details

SUN HEMMI JAPAN CF
Description
This stapled ten-page leaflet arrived with 1982.0386.02. It is marked "Printed in Japan" and probably dates to the mid-1930s. It is titled, Short Directions for the Use of the "Hemmi's" Bamboo Slide Rules, and there are indications throughout the text that its author was not a native speaker of English.
The leaflet explains what a slide rule is. There are sections for Hemmi Normal Slide Rules, the Electro Slide Rule with Log Log Scale, and the Improved Slide Rule. The leaflet also contains an illustration of reading graduations on the scales, an explanation of Hemmi's construction techniques, and various technical problems that could be solved with slide rules. ID number 1982.0386.02 resembles the slide rule illustrated on p. 1, although the drawing shows a ruler in inches on the top edge and depicts PATENT No 58115 as written on the indicator. The example in the collections lacks the ruler and the reference to what is presumably a Japanese patent.
Location
Currently not on view
Credit Line
Gift of John A. Betcher
1931-1939
ID Number
1982.0386.03
accession number
1982.0386
catalog number
1982.0386.03
Object Name
pamphlet
Physical Description
paper (overall material)
Measurements
overall: 26.5 cm x 19.4 cm; 10 7/16 in x 7 5/8 in
place made
Japan: Japan
See more items in
Medicine and Science: Mathematics
Science & Mathematics
Slide Rules
National Museum of American History
subject
Mathematics
Rule, Calculating
Education
Record ID
nmah_1214235
Metadata Usage (text)
CC0
GUID (Link to Original Record)
http://n2t.net/ark:/65665/ng49ca746aa-a531-704b-e053-15f76fa0b4fa

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Slide Rule - POST MODEL 1446 by Hemmi
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