"The POLYPHASE Slide Rule
No. N4053"
by: William E. Breckenridge
Copyright 1938
- Cover
- Copyright Page
- Title Page --------------------------------------------------------------- page 1
- Index ------------------------------------------------------------------- pages 82-83
- Answers to Problems --------------------------------------------------- pages 78-81
- Advertisements
- N4135 - 5" Power Computing Slide rule ------------------------- ad page 1
- 4175 --- 10" Kurtz Psychrometric Slide -------------------------- ad page 1
- 4097B -- 5" EverThere Slide Rule ------------------------------- ad page 1
- 4097C -- 5" EverThere Slide Rule ------------------------------- ad page 1
- 4097D -- 5" EverThere Slide Rule ------------------------------- ad page 1
- 4133 ---- 8" Roylance Electrical Slide Rule ---------------------- ad page 2
- 4102 ---- 20" Surveyor's Duplex Slide Rule --------------------- ad page 2
- 4100 ---- 10" Stadia Slide Rule ---------------------------------- ad page 2
- 4160 ---- 10" The Chemist's Duplex Slide Rule ------------------ ad page 2
- Preface ----------------------------------------------------------------- pages 3-4
- Who Should Use the Slide Rule? --------------------------------- page 3
- How Much Education Is Necessary? ----------------------------- page 4
- How Much Time Will It Take? ----------------------------------- page 4
- How Accurate Is the Slide Rule? --------------------------------- page 4
- How To Use This Manual ---------------------------------------- page 4
- Chapter I - Essentials of the Slide Rule Simply Explained ---------------- pages 5-18
- Squares and Square Roots --------------------------------------- page 6
- Multiplication of Two or More Figures --------------------------- page 7
- How to Read the Scales ----------------------------------------- page 7
- Placing the Decimal Point ---------------------------------------- page 8
- Which Index to Use ---------------------------------------------- page 9
- Per Cent --------------------------------------------------------- page 10
- Reading to Three Figures ---------------------------------------- page 11
- More Than Three Figures in a Factor ---------------------------- page 12
- Combined Multiplication and Division ---------------------------- page 13
- Proportion ------------------------------------------------------- page 14
- Squares --------------------------------------------------------- page 15
- Square Roots ---------------------------------------------------- page 16
- Chapter II - Theory of the Slide Rule ----------------------------------- pages 19-28
- Historical Note -------------------------------------------------- page 19
- Accuracy -------------------------------------------------------- page 19
- Logarithms ------------------------------------------------------ page 21
- Law of Multiplication -------------------------------------------- page 22
- Multiplication ---------------------------------------------------- page 22
- Division --------------------------------------------------------- page 23
- Proportion ------------------------------------------------------ page 23
- Squares and Square Roots -------------------------------------- page 24
- Cubes ----------------------------------------------------------- page 24
- Cube Roots ----------------------------------------------------- page 26
- The Inverted Scale CI ------------------------------------------- page 27
- Three or More Factors ------------------------------------------ page 29
- Chapter III - Advanced Problems --------------------------------------- pages 33-38
- Combined Multiplication and Division ---------------------------- page 33
- Miscellaneous Calculations --------------------------------------- page 36
- Chapter IV - Plane Trigonometry --------------------------------------- pages 39-46
- Sines ------------------------------------------------------------ page 39
- Cosines --------------------------------------------------------- page 39
- Tangents -------------------------------------------------------- page 41
- Cotangents ------------------------------------------------------ page 43
- Secant and Cosecant -------------------------------------------- page 43
- Sines and Tangents of Small Angles ------------------------------ page 44
- Logarithms ------------------------------------------------------ page 45
- To Change Radians to Degrees or Degrees to Radians ----------- page 46
- Chapter V - Solution of Triangles --------------------------------------- pages 47-56
- Right Triangles --------------------------------------------------- page 47
- Oblique Triangles ------------------------------------------------ page 50
- Chapter VI - Typical Examples Relating to Various Occupations --------- pages 57-61
- Secretarial Work ------------------------------------------------- page 57
- Excavating -------------------------------------------------------- page 57
- Per Cent of Profit ------------------------------------------------- page 57
- Discount ---------------------------------------------------------- page 57
- Compound Interest ----------------------------------------------- page 58
- Physics ----------------------------------------------------------- page 58
- Chemistry -------------------------------------------------------- page 58
- Speeds of Pulleys ------------------------------------------------- page 59
- Cutting Speed ---------------------------------------------------- page 59
- Gearing ---------------------------------------------------------- page 59
- Length of Pattern ------------------------------------------------- page 59
- Composition Metal Mixing --------------------------------------- page 60
- Surveying -------------------------------------------------------- page 60
- Rectangular Co-Ordinates --------------------------------------- page 61
- Chapter VII - Methods of Working Out Mechanical and Other Formulas pages 62-70
- Diameters and Areas of Circles ---------------------------------- page 62
- To Calculate Selling Price of Goods ------------------------------ page 62
- Area of Ring ----------------------------------------------------- page 62
- Compound Interest ---------------------------------------------- page 62
- Levers ----------------------------------------------------------- page 63
- Diameter of Pulleys of Teeth of Wheels --------------------------- page 63
- Diameter of two Wheels to work at given Velocities -------------- page 63
- Strength of Teeth of Wheels -------------------------------------- page 63
- Diameter and Pitch of Wheels ------------------------------------ page 63
- Strength of Wrought Iron Shafting -------------------------------- page 63
- To find the Change Wheel in a Screw-Cutting Lathe -------------- page 64
- Rules for Good Leather Belting ----------------------------------- page 64
- Best Manila Rope Driving ---------------------------------------- page 64
- Weight of Iron Bars in Pounds per Foot Length ------------------- page 65
- Weight of Iron Plates in Pounds per Square Foot ----------------- page 65
- Weights of Other Metals ----------------------------------------- page 65
- Weight of Cast Iron Pipes ---------------------------------------- page 65
- Safe Load on Chains --------------------------------------------- page 66
- Gravity ----------------------------------------------------------- page 66
- Oscillations of Pendulums ---------------------------------------- page 66
- Comparisons of Thermometers ----------------------------------- page 66
- Force of Wind --------------------------------------------------- page 67
- Discharge from Pumps ------------------------------------------- page 67
- Diameter of Single-acting Pumps --------------------------------- page 67
- Horse Power Required for Pumps ------------------------------- page 67
- Theoretical Velocity of Water for Any Head --------------------- page 67
- Theoretical Discharge from an Orifice 1 Inch Square ------------- page 68
- Real Discharge from Orifice in a Tank 1 Inch Square ------------- page 68
- Discharge from Pipes when real velocity is known ---------------- page 68
- Delivery of Water from Pipes ------------------------------------ page 68
- Gauging Water with a Weir -------------------------------------- page 69
- Discharge of a Turbine ------------------------------------------- page 69
- Revolutions of a Turbine ----------------------------------------- page 69
- Horse Power of a Turbine --------------------------------------- page 69
- Horse Power of a Steam Engine --------------------------------- page 69
- Dynamometer; to Estimate the indicated H. P. ------------------- page 70
- Geometric Mean ------------------------------------------------ page 70
- Fractions and Decimals ------------------------------------------ page 70
- Quadratic Equations --------------------------------------------- page 70
- Chapter VIII - Table of Equivalents or Gauge Points for Scales C and D pages 71-77
- Geometrical ----------------------------------------------------- page 71
- Arithmetical ----------------------------------------------------- page 71
- Metric System -------------------------------------------------- page 71
- Pressures ------------------------------------------------------- page 72
- Combinations --------------------------------------------------- page 73
- Examples ------------------------------------------------------- page 74
- Higher Powers and Roots --------------------------------------- page 75
- Expressions Solved With One Setting of Slide ------------------- page 75
- Settings for Two Factors ---------------------------------------- page 76
- Settings for Three Factors --------------------------------------- page 77
This instruction manual is from the collection of Clark McCoy
The scans of this manual were provided by Clark McCoy
These web pages were produced by Clark McCoy