Hansen's writing ball, c 1880.
3 1 c m
40cm
actual image size: 32cm x 23cm

Hansen's writing ball, c 1880.

ScM Photo Studio

© Science Museum / Science & Society Picture Library

Description

Many forms of typewriter were tried before practical machines emerged. The writing ball was invented in 1870 by Pastor Malling Hansen, the superintendent of a school for the deaf in Copenhagen, Denmark. Its spring-loaded type rods converge to a common point and are pushed down directly by the user, while the paper is moved by electrically-controlled clockwork to give the correct spacing of letters and lines. The impresion is made through a sheet of carbon paper, which obscures what is typed until the whole page is finished.
 

Artist

 

Image Ref.

10233890
 

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