Slide rule workshop AF

João's fifth mystery slide rule

Aristo 80144

Click images for magnification

Aristo 80144 front Aristo 80144 back
Aristo 80144 slide back

Data:

  • Aristo 80144
  • for use in machining with a mechanical lathe.

Questions:

  1. ????
    According to Klaus Kühn, Karl Kleine: Dennert & Pape, ARISTO 1872 – 1978 this slide rule was made around 1970 and resembles the Aristo 80130 made in 1963, als for Pittler AG.
     Pifat and Pidofat are mentioned in Betriebs-Handbuch BHR 64 für Pittler-Revolverdrehbänke 8. Aufl. p. 15 and were made since 1959 Andries de Man
     See also 1939–1960 Gebr. Heinemann AG Drehzahlwähler und Leistingsrechenschieber in Klaus Greis, Betriebsrechenschieber – No. 1, 2024 Andries de Man