US PATENT SUBCLASS 400 / 330
.~.~.~ Via ratchet wheel connected to pinion and carriage-rack


Current as of: June, 1999
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400 /   HD   TYPEWRITING MACHINES

283  DF  CARRIAGE OR CARRIAGE-MOVING OR MOVEMENT-REGULATING MECHANISM {11}
319  DF  .~ Carriage-feed mechanism (e.g., escapement, etc.) {14}
329  DF  .~.~ Carriage escapement controlled by pawl {5}
330.~.~.~ Via ratchet wheel connected to pinion and carriage-rack {5}
330.1  DF  .~.~.~.~> And plural pawls {4}
331  DF  .~.~.~.~> Including plural ratchet wheels
331.1  DF  .~.~.~.~> Including particular structure of ratchet wheel
331.2  DF  .~.~.~.~> Including cushioned escapement support (e.g., rocker, pawl buffer, etc.)
331.3  DF  .~.~.~.~> Including particular structure of mount for ratchet wheel (e.g., bearing, clutch, etc.)


DEFINITION

Classification: 400/330

Via ratchet wheel connected to pinion and carriage-rack:

The regulating mechanism includes (a) a carriage-rack* affixed to the carriage*, and (b) a rotatable gear having

teeth that are engaged with teeth or notches in the carriage-rack, and (c) a ratchet* that is in the form of a rotatable disc or wheel and is joined to the rotatable gear, and (d) a pawl* that cooperates with the ratchet, the assemblage of parts cooperating to effect the restraint and momentary release of the carriage.