Index of K&E Catalogs
Planimeter Cross Reference Index

Collection of pages from K&E catalogs for the 4250 family of Spherical Planimeters

Description:

The 4250 is an spherical planimeter with adjustable tracer arm. Refer to page 307 of the 1901 catalog for a good description of the instrument.

The following models are part of the 4250 family:

• 1105 ------ Spherical Planimeter with multiplier wheel
• 4250 ------ Spherical Planimeter with multiplier wheel

History:

Of the catalogs available the 4250 spherical planimeter first appeared in the 1895 catalog.

• 1895 -- The 1105 was first shown in the 1892 catalog.
• 1901 -- The 1105 and model number was converted to 4250.
• 1903 -- The 4250 was last shown in the 1903 catalog.

Links to catalog pages for the 4250 family of planimeters:

• 1895 1901 1903