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Explore

  • Slide Rules
  • Linear Slide Rules
  • Circular Slide Rules
  • Cylindrical Slide Rules
  • Manuals & Documentation
  • Index by Makers & Retailers
  • Index by Material
  • Index by Purpose
  • Resources

Slide Rules

Index by Purpose

American History Museum

While many slide rules were made as general calculating instruments, for multiplying numbers and solving equations with squares, cubes, trigonometric functions, and logarithms, many others were made to ease the calculations associated with a specific task. Click on items in the list below to see rules in the collection with an identifiable specialized purpose. For comparison, a few illustrative examples of all-purpose slide rules are shown under the link to General Calculation.

AccessibilityEngineering, ElectricalNavigation
AgricultureEngineering, GeneralNovelty Forms
AstronomyFirefightingPromotion & Sales
Business & Office WorkGaugingShipping
CarpentryGeneral CalculationStatistics
ComputingGovernmentSurveying
ConstructionManufacturingTelevision
Conversion ChartsMetalworkingTransportation
EducationMeteorologyWagering
Engineering, AeronauticalMilitary Applications

Keuffel & Esser 4088-3 Polyphase Duplex Slide Rule

Keuffel & Esser Instruction Manual for Polyphase Duplex Slide Rule

Keuffel & Esser N4053-3 Polyphase Mannheim Simplex Slide Rule

Keuffel & Esser Instruction Manual for Mannheim and Polyphase Duplex Slide Rules

Keuffel & Esser Instructions for 4098 Ever-There Slide Rule

Routledge's Engineer Linear Slide Rule

M. W. Kellogg Hydraulic Slide Rule

Epperson TV Coverage Calculator

Hemmi Simplex Slide Rule Retailed by Post (1446)

Directions for the Use of Hemmi Slide Rules

Lawrence Engineering Service 10-B Mannheim Simplex Slide Rule

Keuffel & Esser 4105 Webb's Stadia Cylindrical Slide Rule

Neil A. Maclean Sulfur Dioxide Concentration Slide Rule

Wizard Fire Stream Calculator Slide Rule

Acreage Worked Circular Slide Chart by Perrygraf for Allis-Chalmers

Perrygraf Enamel Coating Calculator Slide Rule for Armco

Perrygraf Load Center Unit-Sub Slide Rule for Allis-Chalmers

Keuffel & Esser 4055 Favorite Simplex Slide Rule

Keuffel & Esser 4092-3 Log Log Duplex Slide Rule

Pickett 120-T Student Simplex Slide Rule

ECOBRA 1611 Duplex Slide Rule

Fuel-Steam Calculator Circular Slide Rule for Norfolk & Western Railway, invented by Fred Q. Saunders

Concise CTCS-552 Circular Slide Rule

Controller Circular Slide Rule for Canadair

Dietzgen 1732 Decimal Trig Log Log Duplex Slide Rule

Keuffel & Esser N4088-5 Polyphase Duplex Slide Rule

Keuffel & Esser 4081-5 Log Log Decitrig Duplex Slide Rule

Relay/Ricoh Duplex Slide Rule for Lutz (151P)

Diwa 601 Rietz Simplex Slide Rule

Keuffel & Esser 68-1210 Log Log Duplex Slide Rule

Keuffel & Esser 68-2047 Log Log Duplex Decitrig Manual and S14-5 Care Instructions

Keuffel & Esser 1740 Thacher Cylindrical Slide Rule

Wager Timber Scale Slide Rule

Merritt Beam Scale Slide Rule

Perrygraf Spring Data Computer for Associated Spring Corporation


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