US PATENT SUBCLASS 400 / 379
.~ Via spring drive (e.g., spring-driven snatch roll)

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

365  DF  HAVING ROTATED POWER DRIVE INTERMITTENTLY APPLIED FOR TYPE-BAR ACTUATION {7}
379.~ Via spring drive (e.g., spring-driven snatch roll) {2}
380  DF  .~.~> Including individual spring for each type-bar action
381  DF  .~.~> Including reciprocable common actuator

DEFINITION

Classification: 400/379

Via spring drive (e.g., spring-driven snatch roll):

(under subclass 365) Subject matter wherein said shaft is caused to be connected intermittently and temporarily to said force-transmitting member by way of at least one resilient or yieldable component, which component is stressed by rotation of the shaft, and the stress in the component is released intermittently or selectively to actuate a selected type-bar* action.