History of the Typewriter
Forfatter: Geo. Carl Mares
År: 1909
Forlag: Guilbert Pitman
Sted: London
Sider: 318
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CHAPTER VII.
SPECIAL MACHINES AND APPLIANCES.
(i) Electrical Typewriters.
VERY many patents have been issued for electri-
cally driven writing machines. Many of these
have been fantastic in the extreme, but one or
two have been capable of turning out really good work.
The object of the introduction of electricity has been to
secure a more, even impression, greater speed, and con-
sequently better work and more of it. The following
instruments appear to be the most meritorious machines
of this class.
The Cahill. This machine was placed upon the market
in America about 1899, and after a career of a few years
closed down pending developments.
Fig. 125