Index of K&E Catalogs
Planimeter Cross Reference Index

Collection of pages from K&E catalogs for the 4238 family of Polar Planimeters

Description:

The 4238 is a Polar planimeter with two pole arm sockets for English and Metric. Refer to page 256 of the 1921 catalog for a good description of the instrument.

The following models are part of the 4238 family:

• 4238 ------ Polar Planimeter with long pole arm and two pole arm sockets on the tracer arm to provide readings in English and Metric.
• N4238 ---- Polar Planimeter with long pole arm and two pole arm sockets on the tracer arm to provide readings in English and Metric.

History:

Of the catalogs available the 4238 polar planimeter first appeared in the 1895 catalog.

• 1913 -- The 4238 was first introduced.
• 1930 -- The 4238 was changed to the N4238.
• 1936 -- The 4238N was last shown in the 1936 catalog.

Links to catalog pages for the 4238 family of planimeters:

• 1913 1915 1921 1927b 1930 1936