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Slide Rule - linear 16" auto frettage
Major collection: Science & Technology
Object type: slide rule
Maker: Measurements: 1/2 in x 15 1/2 in x 5 in
Nomenclature: data processing tools and equipment - slide rules
Classification: tools and equipment
1983.017.001
Object type: slide rule
Maker: Measurements: 1/2 in x 15 1/2 in x 5 in
Nomenclature: data processing tools and equipment - slide rules
Classification: tools and equipment
Plaque on reverse: "Master Chart and Slide Rule for Auto Frettage Calculations, Watertown Arsenal Lab, March 18, 1925. J.C. S." Includes leather case, six pages of calculations, directions and plotting chart. Table of ratios. Calculates the strain on cylinders undergoing flows or stresses.
1983.017.001
Gift of Willard Marquis