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| Keywords: Pterotype.jpg Photo of early prototype typewriter the Pterotype 'winged type' built by John Pratt an American living in England and presented at the Society of Arts in London and the Royal Society in 1867 An article about it in the July 6 1867 issue of Scientific American inspired many other typewriter inventors A unique feature of the machine was that the typefaces were on a 'type plate' which was moved horizontally and vertically by the keys and a hammer struck the paper from behind driving it against the type Pratt received British letter patent no 3163 on Dec 1 1866 and US Letter Patent No 81000 on Aug 11 1868 Unable to develop it commercially Pratt sold the rights to James Bartlett Hammond and many of it's features were incorporated in the Hammond typewriter For more information see http //books google com/books id vtobAAAAIAAJ pg PA809 Appleton's Annual Cyclopedia for 1890 p 809 Alterations none Downloaded 2008-1-11 from http //www earlyofficemuseum com/centennial 20exposition htm Office equipment and supplies at the 1876 Centennial exposition Early Office Museum website Source said it was copied from George Carl Mares 1909 http //books google com/books id LseyGQAACAAJ The History of the Typewriter G Pittman London p 34-41 1909 George Carl Mares Public domain - Mares died in 1926 PD-old Pterotype jpg Photo of early prototype typewriter the Pterotype 'winged type' built by John Pratt an American living in England and presented at the Society of Arts in London and the Royal Society in 1867 An article about it in the July 6 1867 issue of Scientific American inspired many other typewriter inventors A unique feature of the machine was that the typefaces were on a 'type plate' which was moved horizontally and vertically by the keys and a hammer struck the paper from behind driving it against the type Pratt received British letter patent no 3163 on Dec 1 1866 and US Letter Patent No 81000 on Aug 11 1868 Unable to develop it commercially Pratt sold the rights to James Bartlett Hammond and many of it's features were incorporated in the Hammond typewriter For more information see Appleton's Annual Cyclopedia for 1890 p 809 Alterations none Date 1909 1909 Source Downloaded 2008-1-11 from Office equipment and supplies at the 1876 Centennial exposition Early Office Museum website Source said it was copied from George Carl Mares 1909 The History of the Typewriter G Pittman London p 34-41 Author George Carl Mares Permission Reusing this image Public domain - Mares died in 1926 ImageNoteEnd 1 Typewriters | ||||
