History of the Typewriter
Forfatter: Geo. Carl Mares
År: 1909
Forlag: Guilbert Pitman
Sted: London
Sider: 318
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The Imperial Typewriter.
This machine is the latest addition to the long list of
claimants for public favour. It is an English-made type-
writer, being the invention of Mr. Hidalgo Moya, whose
earlier production is referred to on page 158.
As will be observed from the illustration, the Imperial
is a machine of the downstroke variety, and its proper
place would be immediately after the Franklin, which it
closely resembles in appearance. The keyboard is arranged
after the universal order, and works with two shift keys.
It will be observed, however, that it is curved in form, and
machines of this form of keyboard have not, hitherto, had
a prolonged career. The Salter, which started with a
curved keyboard, had to alter the shape, as did the first
Williams. Another point to which attention should be
drawn is the position of the ribbon spools. In prior
machines of this class, the spools have been set down in
the well of the machine. In the present case, they are
set at the sides, so that, in passing from one spool to the
other, a very considerable area of ribbon is exposed. Many
machines make a special point of the ribbon being entirely
protected. It will be observed that a bi-colour ribbon
may be used.
Perhaps the most important feature of the Imperial is
the form of type-bar, which connects directly with the
lever, a feature which was used in the English and the
Franklin. In the case of the Imperial, however, the con-
nection is arranged differently, and the use of the spring
to return the type-bar to rest is an addition which was
sadly lacking in those machines. Quoting from the cata-
logue “ In the action of the key lever and type-bar it will
be noted that one end of the spring is attached to the bar
and the other end to the lever, and that it has a bodily
movement, independent of its action as a spring. That
is to say, both ends of the spring are attached to parts
moving in the same direction. As one of these parts moves
faster than the other the spring receives sufficient tension
to return the parts it controls to their normal position.
This not only allows the use of the solid push movement,
but of a strong and durable spring. The advantage of
the “ contact ” system is also well shown in the action of
the foot of the key lever on the universal escapement plate
—the plate which causes all the levers to actuate the carriage.
This action is similar to that of the operator’s finger on
the space-bar. The type and keyboard are shifted for