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Someone is still making slide rules
01-02-2020, 10:58 PM
Post: #16
RE: Someone is still making slide rules
(01-02-2020 08:27 PM)Bill (Smithville NJ) Wrote:  I have three inserts:
Insert CE: Tables for Useful Constants, Volume Conversions, Mass,
Force, Area, Decimal Equivalents, Velocity, Gas Constants, Flow Rate,
Pressure, Energy

Insert EE: Tables for Useful Constants, Color Code, Copper Wire,
Unit Conversions, Standard Component Values, Energy, Force,
Velocity, Power, Greek Alphabet, Velocity, Length, Mass, Area,

Insert ST: Mathematical Formulas, Chemical & Physical Data,
Pressure, Gas Constants, Length, Area, Volume, Mass, Force,
Energy, Power, Greek Alphabet, Velocity

Bill - I have several of these Sama & Etani pocket circular slide rules, each with a single insert; I have an ST, CE and 2 others w/o labels. Also, the backs of the rule body contain either a Periodic Table in the classic layout or a simple listing of the elements (older unit).

Does your rule allow all 3 inserts to be inserted at the same time? I've never seen a rule that accepts more than 1 insert, so I'd be interested to see how that one holds 3, if that's the case.

--Bob Prosperi
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RE: Someone is still making slide rules - rprosperi - 01-02-2020 10:58 PM

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