.~ Including pneumatic decoder for perforated tape
DEFINITION
Classification: 400/177
Including pneumatic decoder for perforated tape:
(under subclass 176) Subject matter wherein the typewriter is
controlled for operation by a mechanism that includes (a) a strip having holes therein, and (b) means for moving the strip relative to a bar having holes therein whereby the strip will cover the holes in the bar except when a hole in the strip matches a hole in the bar, and (c) means for passing air or gas through the holes in the bar when a hole in the bar is uncovered by a hole in the strip, whereby a signal or pulse is generated by the passage of air or gas through a hole in the bar, and (d) means for converting the signals or pulses so generated into one or more operation(s) of the typewriter.
