Keuffel & Esser 4053-3  
Written by Accutron on 2017-07-05  

Manufactured continuously from 1910 to the early 1970s, the Keuffel & Esser 4053-3 is the definitive example of a 10" polyphase slide rule - a Mannheim-style simplex slide rule with a CI scale and a K scale for handling cubes and cube roots. The 4053-3 also has a reversible slide with S, L and T scales on its reverse, inch and metric rulers along the top and bottom edges of the stator, and a printed conversion table on the stator's reverse. The 4053-3 pictured here is a later example, manufactured in the mid-1950s, with a celluloid-laminated mahogany body affixed to a plastic base.

Available Scales: A [B CI C] [S L T] D K

Keuffel & Esser 4053-3 simulation, adapted from the Virtual Slide Rule script by Derek Ross. Click stator to reverse.

Keuffel & Esser 4053-3 polyphase simplex slide rule, obverse view.

4053-3 slide rule, reverse view.

4053-3 slide rule, box and carrying case.

This article is part of the [Slide Rules] exhibit.

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