Collection of pages from K&E catalogs for the 4242 family of Polar Planimeters

From the 1972 catalog


The 4242 is a polar planimeter with adjustable tracer and pole arms. Refer to page 315 of the 1915 catalog for a good description of the instrument.

The following models are part of the 4242 family:


Of the catalogs available the 4242 radial planimeter first appeared in the 1901 catalog. In the 1940s, 1950s, and 1960s the 4242 and its variants became the standard adjustable radial planimeter for the K&E line.

Links to catalog pages for the 4242 family of planimeters: