We hate 2020!

Just when we thought 2020 couldn't get any worse! We were about to re-open after many months of being closed but then disaster struck when a mains water pipe burst and flooded much of the ground floor of the museum.
Sadly re-opening has now been postponed. Read More >>>

Please Donate Via Just GivingNo visitors, no workshops, no events, no school visits... no income. We know that things are tough for everyone right now, but if you can afford to help us through these tough times please donate what you can.

There's over 36,000 exhibits here! That should keep you occupied for a bit - get searching!

Or come and get involved on our social media channels ...

      Twitch  Facebook          Online Gift Shop      

Thank you.

Willgodt T. Odhner granted a patent for a calculating machine

29th October 1878
Willgodt T. Odhner granted a patent for a calculating machine

Willgodt T. Odhner was granted a patent for a calculating machine that performed multiplications by repeated additions.  

The patent, a modified and compact version of Gottfried von Leibniz's stepped wheel, was acquired and embodied in Brunsviga calculators that sold into 1950s.

The patent was no. 209416 in the USA: http://www.oocities.org/andriesdeman/patodh1.html


 

 

 


 

Willgodt T. Odhner granted a patent for a calculating machine

Click on the Images
For Detail






 

Help support the museum by buying from the museum shop

View all items

Founding Sponsors
redgate Google ARM Real VNC Microsoft Research
Heritage Lottery Funded
Heritage Lottery Fund
Accredited Museum