GB190718218A - Improved Slide Rule. - Google Patents
Improved Slide Rule.Info
- Publication number
- GB190718218A GB190718218A GB190718218DA GB190718218A GB 190718218 A GB190718218 A GB 190718218A GB 190718218D A GB190718218D A GB 190718218DA GB 190718218 A GB190718218 A GB 190718218A
- Authority
- GB
- United Kingdom
- Prior art keywords
- logarithms
- scales
- slide
- unity
- inches
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Landscapes
- Length-Measuring Instruments Using Mechanical Means (AREA)
- Drawing Aids And Blackboards (AREA)
Abstract
18,218. Yokota, S. Aug. 12. Slide rules.-Upon the stationary portion of the rule there are scales of distance in centimetres, A, of logarithms of numbers greater than unity, E, and less than unity, F, each arranged in three rows, and of logarithms of numbers and squares respectively upon the edges adjacent to similar scales D, C on the slide. Centrally placed upon the slide is a scale of the logarithms of cubes G, and upon the reverse thereof are logarithmic scales of sines, secants, and tangents. These scales are all constructed to a standard length of ten inches, and there is accordingly added, on one of the side surfaces of the stationary portion, a length scale ten inches in extent, against which a cursor can be moved so as to facilitate the ascertaining of logarithms by inspection.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB190718218T | 1907-08-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB190718218A true GB190718218A (en) | 1907-12-12 |
Family
ID=32435910
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB190718218D Expired GB190718218A (en) | 1907-08-12 | 1907-08-12 | Improved Slide Rule. |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB190718218A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2422649A (en) * | 1944-10-17 | 1947-06-17 | Keuffel & Esser Co | Slide rule |
US3733470A (en) * | 1971-06-21 | 1973-05-15 | Iprofil Tennolemn | Slide rule of general use of pocket size |
WO2009006674A1 (en) * | 2007-07-10 | 2009-01-15 | Henricus Antonius Kemps | Map distance calculator |
-
1907
- 1907-08-12 GB GB190718218D patent/GB190718218A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2422649A (en) * | 1944-10-17 | 1947-06-17 | Keuffel & Esser Co | Slide rule |
US3733470A (en) * | 1971-06-21 | 1973-05-15 | Iprofil Tennolemn | Slide rule of general use of pocket size |
WO2009006674A1 (en) * | 2007-07-10 | 2009-01-15 | Henricus Antonius Kemps | Map distance calculator |
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