IBM ELECTRIC
STANDARD TYPEWRITER
MODEL C-l
This section describes the new features of the
Model C1 typewriter, serial numbers 1,100,000 and
above.
APPEARANCE. The case and cover sections have
been completely redesigned to include many func-
tional and aesthetic improvements.
DECELERATOR.
The decelerator improves and
quiets the carriage action during tabulation and car-
riage return by enabling the centrifugal governor to
operate during either operation.
RESILIENT KEYBOARD CONTROL. This control
pos~tions
spring fingers under the key levers and per-
mits the operator to set the touch to suit his or her
individual requirements.
SHIFT. The shift mechanism has been improved in
operation and the adjustments simplified.
MARGIN RESET. The margin reset mechanism has
been made easier to operate and the possibility of
malfunction eliminated.
PLATEN RATCHET. The platen ratchet has been
enclosed within the left-hand carriage-end cover.
RIBBON MECHANISM-FABRIC. 7he fabric ribbon
feed mechanism has been completely redesigned to
provide cleaner, faster ribbon changing, and positive
feeding.
RIBBON MECHANISM-CARBON. The carbon rib-
bon mechanism is completely contained within the
typewriter case and has been improved to provide
easier threading and more accurate feeding.
CARRIAGE. The Model C typewriter
is available
in 13, 17, 20, 24 and 30 inch carriage lengths.
CASE AND COVER SECTIONS
The typewriter is contained in a bottom case-sec-
tion or shell. A rear cover-section mounts to the bot-
tom case with two long screws.
The front cover-
section
is
hinged to the bottom case-section and
latched down over the keyplate by a latch at each
front corner of the bottom case-section (Figure 1).
Lugs in the bottom case-section anchor the keyplate.
Carriage-end covers contain the carriage-release but-
tons and are secured over each end of the carriage
by Bristo screws inside of the end covers.
Four rubber mounts, screwed to the typewriter
3
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