Following the Rules — A Slide Rule Collection

Go to the Introduction
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Vignettes – 26 short articles and stories about slide rules, calculations, and collecting: |
Vignette Title | Last Update |
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Dietzgen Rosenthal Nestler Prototype | 2023 May 29 |
Slide Rules for the Sikes Hydrometer | 2023 Apr 22 |
Gauging and Excise Tax Slide Rules | 2023 Apr 08 |
America’s Earliest Slide Rule | 2023 Mar 10 |
Spring Calcs Eternal | 2022 Dec 23 |
Out of Proportions | 2022 Dec 10 |
Vector/Hyperbolic Calculations | 2022 Jun 20 |
Stadia Rules | 2022 Jan 05 |
Helical Slide Rules | 2021 Dec 12 |
The Early American Favorite | 2021 Dec 05 |
Power Rules | 2021 Oct 25 |
Lt. Shaw’s 4097D | 2021 Oct 03 |
Rule Change 4092-3 | 2021 Oct 02 |
K+E Beginner’s Rules | 2021 Aug 10 |
An Early Home-Made Spring Calculation Slide Rule | 2021 Jul 01 |
A K+E Rule of Mystery | 2021 Jun 20 |
British Thornton Special Scales | 2021 May 15 |
Getting to the Root | 2021 May 01 |
The Long and Short of It | 2021 Mar 01 |
Hemmi 153 Scales | 2021 Feb 08 |
A Boykin Discovery | 2021 Feb 06 |
Fermi’s Golden (Slide) Rule | 2021 Feb 05 |
Rules of Engravement | 2021 Feb 04 |
The Original 4083 | 2021 Feb 03 |
Rules to the Moon | 2021 Feb 02 |
A Favorite Rule | 2021 Feb 01 |
New to slide rules? – What is a slide rule? What is a logarithm? How do you use a slide rule? What do all the scales mean? – Let’s get started ! | Returning to the site? New Rules! | ![]() |
Collection Photos – a chronological look at the slide rule collection | ![]() |
Special Groupings – subgroups, such as oldest, youngest, most scales, specialty slide rules, … |
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Rule Makers – The collection, organized by manufacturers | ![]() |
A Searchable Table of the entire collection | A Data Sheet for each rule |
A Review of the Logarithm | Slide Rule Basics | Slide Rule Scales | References |
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-Mike Syphers
About This Web Site | Site Tips | About the Author |
The Oughtred Society | 29 May 2023 | International Slide Rule Museum |