Coleman J. Major Liquid Flow Slide Rule

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Country of manufacture: USA,            Date of manufacture: >= 1948
Overall length: 26.7 cm,          Width: 9.6 cm.,           Weight: 97.8 gms.
Materials: Transparent plastic shell with plastic slides
Cursor: 3.6 X 9.8 X 0.5 cms; All-plastic; lines = one each on front and back
Scales: specialized
Front: Viscosity [ Specific Gravity ] [ Rate of Flow, Actual Internal Diameter, Nominal Pipe Diameter ] Friction Factors for Clean Steel and Wrought Iron Pipe (7 diameters), Friction Factor for all Types and Sizes of Pipe (Streamline Flow), Friction Factor for All Sizes of Smooth Drawn Tubing, Directions for Calculating Pressure Drop, Reynolds Numbers through Turbulent and Streamline Flow
Back: Description of formulae and variables used, References, Directions for Calculating Pressure Drop, Friction Factor [ Nominal Pipe Diameter, Actual Internal Diameter, Rate of Flow ] [ Specific Gravity ] Presssure Drop
Condition: C3 (Very Minimal signs of use)
Came with: Brown cardboard envelope, instruction booklet

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