US PATENT SUBCLASS 400 / 354.1
.~.~.~ Guideway cooperating with ball bearings or roller bearings

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

283  DF  CARRIAGE OR CARRIAGE-MOVING OR MOVEMENT-REGULATING MECHANISM {11}
352  DF  .~ Carriage, per se, or guideway therefor {2}
354  DF  .~.~ Guideway or bearings for carriage {1}
354.1.~.~.~ Guideway cooperating with ball bearings or roller bearings {2}
354.2  DF  .~.~.~.~> Including bearing holder geared to carriage
354.3  DF  .~.~.~.~> Including respositionable guideway

DEFINITION

Classification: 400/354.1

Guideway cooperating with ball bearings or roller bearings:

(under subclass 354) Subject matter wherein significance is attributed to the cooperative association of the rail or track with the journals, gudgeons, or assemblages, which assemblages include a bearing known as a ball bearing or a roller bearing.

(1) Note. The form of bearing for this and indented subclasses includes two annular members having an annular space therebetween, in which annular space a plurality of rollers or balls are provided. By this construction, one of the members is enabled to rotate relative to the other member, the rollers or the balls revolving and rotating within annular space.