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These are vintage K&E Planimeters model 4236. 1930s - 1950s. The number 61279 is a serial number, not a model number. This is a mapping device that is moved around a irregular perimeter to calculate an area. They are missing a 2nd arm which is pinned to a fixed point to create a "Polar Planimeter". The other parts may not be related. They may be part of an adapter attachment to convert it to a "Linear Planimeter", but if so, they are not complete either, there should be wheels.

Bounty: $6.00

Posted By: HelpIdentify
Listed: November 15, 2019 Ends: February 13, 2020

I'd Like to Know:

I would like to know the name of these devices and what their function is. Please provide reference links with your opinion.

Item History: Unknown.

Size: 10"x2"x1"

Markings: "61279" Numbered 60-220 incrementally on the main bar.


Have Something to Identify?

Opinions


1)

These items are planimeters. There are two of them in the photographs. They were used in measuring areas of irregular shapes on maps or drawings. They are pretty much a museum item nowadays with computerized mapping.

References:

https://computarium.lcd.lu/photos/albums/OTT_Polar_Planimeter_49539/album/sli...

https://en.wikipedia.org/wiki/Planimeter

By: Sawmilleng

Submitted on: 11/18/2019 at 04:21PM
Rejected

Reason:
Another opinion was accepted instead.

2)

These are vintage K&E Planimeters model 4236. 1930s - 1950s. The number 61279 is a serial number, not a model number. This is a mapping device that is moved around a irregular perimeter to calculate an area. They are missing a 2nd arm which is pinned to a fixed point to create a "Polar Planimeter". The other parts may not be related. They may be part of an adapter attachment to convert it to a "Linear Planimeter", but if so, they are not complete either, there should be wheels.

References:

https://www.ebay.com/i/202795397736?chn=ps&norover=1&mkevt=1&mkrid=711-117182...

By: GladMech

Submitted on: 11/18/2019 at 05:15PM
Accepted