International Workshop BN
Eamonn's mystery table.
“System Cuntz”
Click image for magnification
See also Dieter von Jezierski, “System Cuntz, …”
Slide Rule Gazette 4, Autumn 2003, p.85;
Georg Schreiber, “Koch, Huxhold & Hannemann”, 2011;
J.G.Fernandez, “Revisiting 'System Cuntz' Slide Rules”,
Slide Rule Gazette 25, Autumn 2025 p.22
and US Patent 1168059
Data:
- Handwritten table on the back of a System Cuntz Version A slide rule.
- The characters at the top of the table are unusual. They may be some type of shorthand.
It could be Gabelsberger or Deutsche Einheitskurzschrift.
The Transkribus online OCR tools for Gabelsberger and DEK need more text than given in the table.
Questions:
- What was the purpose of the table and what do the values represent?
Suggestion 1: Row 5 and 6 are reciprocals of row 3 and 4, except for the last column (this is also approximately true for suggestion 2)Suggestion 2: Simple relations between the first data row (x) and the other rows (y), except for the last column:
Show: | |G1 = D1³: y ≈ 1.9 / x G2 = D2³: y ≈ 2.3 / x D3 = G1: y ≈ 0.52 × x D4 = G2: y ≈ 0.44 × x
Andries de Man2.1 7.3 7.9 8.9 8.3 8.6 11 0.9 G1 = D1³: 0.93 0.27 0.24 0.21 0.23 0.22 0.17 1.0 G2 = D2³: 1.1 0.31 0.29 0.26 0.28 0.27 0.21 – D3 = G1: 1.1 3.7 4.1 4.7 4.3 4.5 5.9 1.0 D4 = G2: 0.9 3.2 3.5 3.9 3.6 3.8 5.0 –