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paper. But the fact that the Yost has stood its ground
for so many years shows that the objection does not
appear to be well founded.
The pointer, which was a hinged plate fixed to the
framework of the machine under the carriage, was a
revelation in simple devices ; and one has only to point
to the large number of machines which have since adopted
a similar device to be assured of its use and value.
The No. i was followed by a model called “ The New
Yost,” in which a different form of escapement was used,
and various other improvements added to the carriage.
The square corners were literally and truly rounded off.
No. 3 was the brief-sized model.
The No. 4 Yost occupied the field for many years.
It had seventy-six keys, retained all the good features
of earlier models, and introduced a keyboard lock, improved
the marginal arrangements, then adopted sliding and
adjustable paper fingers, and many other devices. It
was a stately machine, capable of being operated at very
high speeds. Nos. 5, 6, 7, 8, etc., were identical machines
in every way, saving that wider carriages were used.
The ability to remove the carriage from the Yost, a
feature which was employed from the earliest models,
rendered the substitution of a smaller carriage an easy
matter. Thus, a brief machine could be adapted to
foolscap work, with the convenience that unfinished
work did not require removal. As mimeography grew