It's made from an old chemistry ring stand!
Here it is in use.
| Here's a Prytz planimeter I had made in
the college maintinence shop.
It's made from an old chemistry ring stand! |
Here it is in use. |
 |
 |
Planimeters of this type were manufactured commercially starting in 1887 by the Copenhagen firm of Cornelius Knudsen. If you know of the existence of one of these original Prytz planimeters, I would appreciate hearing from you!
Here is one that was probably manufactured in Holland (it came with instructions in Dutch) in the late 1800's or early 1900's.
From the collection of Bob
Otnes
From the collection of Bob
Otnes
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Animations of Prytz planimeters How a Prytz planimeter measures area |
Last update 13 August 1998
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