Uploaded September 2021 | Updated September 2026, 4 days ago
The Brunsviga D 13Z/1 consists of two calculators, side by side, connected to a single crank. Double calculators like this were used for calculations involving coordinates, such as land surveying, and were also often used by the military. I give a simple example of such a calculation.
For more information about this and other calculators in my collection, please visit my website:
jaapsch.net/mechcalc
0:00 Introduction
1:14 Uses for double calculators
2:50 Description of the calculation, part 1
3:36 Doing the calculation, part 1
5:24 Description of the calculation, part 2
6:19 Clearing counter and input registers
7:07 Doing the calculation, part 2
9:43 Clearing the output registers
9:56 Manually setting the output registers
10:28 Outro
The Brunsviga D 13Z/1 consists of two calculators, side by side, connected to a single crank. Double calculators like this were used for calculations involving coordinates, such as land surveying, and were also often used by the military. I give a simple example of such a calculation.
For more information about this and other calculators in my collection, please visit my website:
jaapsch.net/mechcalc
0:00 Introduction
1:14 Uses for double calculators
2:50 Description of the calculation, part 1
3:36 Doing the calculation, part 1
5:24 Description of the calculation, part 2
6:19 Clearing counter and input registers
7:07 Doing the calculation, part 2
9:43 Clearing the output registers
9:56 Manually setting the output registers
10:28 Outro
